1 Updating Information for FreeBSD stable/13 users.
3 This file is maintained and copyrighted by M. Warner Losh <imp@freebsd.org>.
4 See end of file for further details. For commonly done items, please see the
5 COMMON ITEMS: section later in the file. These instructions assume that you
6 basically know what you are doing. If not, then please consult the FreeBSD
9 https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html
11 Items affecting the ports and packages system can be found in
12 /usr/ports/UPDATING. Please read that file before running portupgrade.
15 13.0-RELEASE-p11 FreeBSD-EN-22:15.pf
16 FreeBSD-SA-22:04.netmap
17 FreeBSD-SA-22:05.bhyve
18 FreeBSD-SA-22:06.ioctl
19 FreeBSD-SA-22:07.wifi_meshid
22 pf(4) tables may fail to load [EN-22:15.pf]
24 Potential jail escape vulnerabilities in netmap [SA-22:04.netmap]
26 Bhyve e82545 device emulation out-of-bounds write [SA-22:05.bhyve]
28 mpr/mps/mpt driver ioctl heap out-of-bounds write [SA-22:06.ioctl]
30 802.11 heap buffer overflow [SA-22:07.wifi_meshid]
32 zlib compression out-of-bounds write [SA-22:08.zlib]
35 13.0-RELEASE-p10 FreeBSD-EN-22:14.tzdata
37 Timezone database information update. [EN-22:14.tzdata]
40 13.0-RELEASE-p9 FreeBSD-EN-22:13.zfs
42 Fix ZFS data loss [FreeBSD-EN-22:13.zfs]
45 13.0-RELEASE-p8 FreeBSD-EN-22:10.zfs
49 FreeBSD-SA-22:03.openssl
51 ZFS writes fail to update file size [FreeBSD-EN-22:10.zfs]
53 ZFS lseek(2) inconsistencies [FreeBSD-EN-22:11.zfs]
55 ZFS panic upon concurrent 'zfs list' calls [FreeBSD-EN-22:12.zfs]
57 Multiple WiFi issues [FreeBSD-SA-22:02.wifi]
59 OpenSSL certificate parsing infinite loop [FreeBSD-SA-22:03.openssl]
62 13.0-RELEASE-p7 FreeBSD-EN-22:07.la57
64 Fix Intel CPU LA57 boot failure [EN-22:07.la57]
67 13.0-RELEASE-p6 FreeBSD-EN-22:01.fsck_ffs
68 FreeBSD-EN-22:02.xsave
69 FreeBSD-EN-22:03.hyperv
71 FreeBSD-EN-22:06.libalias
74 Fix fsck_ffs bad inode number errors [EN-22:01.fsck_ffs]
76 Correct size of the amd64 SSE area in the xsave layout [FreeBSD-EN-22:02.xsave]
78 Prepopulate Hyper-V PCI device bars [FreeBSD-EN-22:03.hyperv]
80 Fix "tail -F" file rotation detection [FreeBSD-EN-22:05.tail]
82 Fix fragmented UDP packets handling [FreeBSD-EN-22:06.libalias]
84 Fix vt console buffer overflow [FreeBSD-SA-22:01.vt]
87 13.0-RELEASE-p5 FreeBSD-EN-21:26.libevent
88 FreeBSD-EN-21:27.caroot
90 FreeBSD-EN-21:29.tzdata
92 Fix libevent1 ABI breakage. [EN-21:26.libevent]
94 Root certificate bundle update. [EN-21:27.caroot]
96 Fix kernel panic in vmci driver initialization. [EN-21:28.vmci]
98 Timezone database information update. [EN-21:29.tzdata]
101 13.0-RELEASE-p4 FreeBSD-EN-21:23.virtio_blk
102 FreeBSD-EN-21:24.libcrypto
103 FreeBSD-EN-21:25.bhyve
104 FreeBSD-SA-21:13.bhyve
105 FreeBSD-SA-21:14.ggatec
106 FreeBSD-SA-21:15.libfetch
107 FreeBSD-SA-21:16.openssl
109 Fix virtio_blk(4) failing to attach on some hypervisors. [EN-21:23.virtio_blk]
111 Fix OpenSSL 1.1.1e API functions not being exported. [EN-21:24.libcrypto]
113 Fix NVMe iovec construction for large IOs. [EN-21:25.bhyve]
115 Fix missing error handling in bhyve(8) device models. [SA-21:13.bhyve]
117 Fix remote code execution in ggatec(8). [SA-21:14.ggatec]
119 Fix libfetch out of bounds read. [SA-21:15.libfetch]
121 Fix multiple OpenSSL vulnerabilities. [SA-21:16.openssl]
124 13.0-RELEASE-p3 FreeBSD-EN-21:18.libc++
125 FreeBSD-EN-21:19.libcasper
126 FreeBSD-EN-21:20.vlan
127 FreeBSD-EN-21:21.ipfw
128 FreeBSD-EN-21:22.linux_futex
130 Missing C++20 headers in libc++ [EN-21:18.libc++]
132 libcasper assertion failure [EN-21:19.libcasper]
134 Missing backwards compatibility in vlan(4) [EN-21:20.vlan]
136 Kernel panic with ipfw link-layer filtering enabled [EN-21:21.ipfw]
138 Linux compatibility layer futex(2) system call vulnerability [EN-21:22.linux_futex]
141 13.0-RELEASE-p2 FreeBSD-EN-21:17.libradius
143 Incorrect validation in rad_get_attr(3) [FreeBSD-EN-21:17.libradius]
146 13.0-RELEASE-p1 FreeBSD-EN-21:12.divert
149 FreeBSD-EN-21:15.virtio
151 FreeBSD-SA-21:11.smap
152 FreeBSD-SA-21:12.libradius
154 Kernel double free when transmitting on a divert socket [FreeBSD-EN-21:12.divert]
156 mpt(4) I/O errors with a large maxphys value [FreeBSD-EN-21:13.mpt]
158 pms(4) data corruption [FreeBSD-EN-21:14.pms]
160 virtio(4) device probing fails [FreeBSD-EN-21:15.virtio]
162 dc update [FreeBSD-EN-21:16.bc]
164 SMAP bypass [FreeBSD-SA-21:11.smap]
166 Missing message validation in libradius(3) [FreeBSD-SA-21:12.libradius]
172 13.0-RC5-p1 FreeBSD-SA-21:08.vm
173 FreeBSD-SA-21:10.jail_mount
175 Memory disclosure by stale virtual memory mapping [SA-21:08.vm]
177 Jail escape possible by mounting over jail root [SA-21:10.jail_mount]
180 13.0-RC3-p1 FreeBSD-SA-21:07.openssl
182 Fix multiple OpenSSL issues [SA-21:07.openssl]
185 13.0-BETA3-p1 FreeBSD-SA-21:03.pam_login_access
188 login.access fails to apply rules [SA-21:03.pam_login_access]
190 Xen grant mapping error handling issues [SA-21:06.xen]
193 Various LinuxKPI functionality was added which conflicts with DRM.
194 Please update your drm-kmod port to after the __FreeBSD_verison 1300139
198 The stable/13 branch has been created from main.
201 PC Card attachments for all devices have been removed. In the case of
202 wi and cmx, the entire drivers were removed because they were only
203 PC Card devices. FreeBSD_version 1300134 should be used for this
204 since it was bumped so recently.
207 Transport-independent parts of HID support have been split off the USB
208 code in to separate subsystem. Kernel configs which include one of
209 ums, ukbd, uhid, atp, wsp, wmt, uaudio, ugold or ucycom drivers should
210 be updated with adding of "device hid" line.
213 ncurses installation has been modified to only keep the widechar
214 enabled version. Incremental build is broken for that change, so it
215 requires a clean build.
218 The FreeBSD project has migrated from Subversion to Git. Temporary
219 instructions can be found at
220 https://github.com/bsdimp/freebsd-git-docs/blob/main/src-cvt.md
221 and other documents in that repo.
224 The services database has been updated to cover more of the basic
225 services expected in a modern system. The database is big enough
226 that it will cause issues in mergemaster in Releases previous to
227 12.2 and 11.3, or in very old current systems from before r358154.
230 Obsolete in-tree GDB 6.1.1 has been removed. GDB (including kgdb)
231 may be installed from ports or packages.
234 ping6 has been merged into ping. It can now be called as "ping -6".
235 See ping(8) for details.
238 Default value of net.add_addr_allfibs has been changed to 0.
239 If you have multi-fib configuration and rely on existence of all
240 interface routes in every fib, you need to set the above sysctl to 1.
242 The internal pre-processor in the calendar(1) program has been
243 extended to support more C pre-processor commands (e.g. #ifdef, #else,
244 and #undef) and to detect unbalanced conditional statements.
245 Error messages have been extended to include the filename and line
246 number if processing stops to help fixing malformed data files.
249 All the data files for the calendar(1) program, except calendar.freebsd,
250 have been moved to the deskutils/calendar-data port, much like the
251 jewish calendar entries were moved to deskutils/hebcal years ago. After
252 make delete-old-files, you need to install it to retain full
253 functionality. calendar(1) will issue a reminder for files it can't
257 LINT files are no longer generated. We now include the relevant NOTES
258 files. Note: This may cause conflicts with updating in some cases.
259 find sys -name LINT\* -delete
260 is suggested across this commit to remove the generated LINT files.
262 If you have tried to update with generated files there, the svn
263 command you want to un-auger the tree is
266 and then do the above find from the top level. Substitute 'amd64'
267 above with where the error message indicates a conflict.
270 OpenZFS support has been integrated. Do not upgrade root pools until
271 the loader is updated to support zstd. Furthermore, we caution against
272 'zpool upgrade' for the next few weeks. The change should be transparent
273 unless you want to use new features.
275 Not all "NO_CLEAN" build scenarios work across these changes. Many
276 scenarios have been tested and fixed, but rebuilding kernels without
277 rebuilding world may fail.
279 The ZFS cache file has moved from /boot to /etc to match the OpenZFS
280 upstream default. A fallback to /boot has been added for mountroot.
282 Pool auto import behavior at boot has been moved from the kernel module
283 to an explicit "zpool import -a" in one of the rc scripts enabled by
284 zfs_enable=YES. This means your non-root zpools won't auto import until
285 you upgrade your /etc/rc.d files.
288 The resume code now notifies devd with the 'kernel' system
289 rather than the old 'kern' subsystem to be consistent with
290 other use. The old notification will be created as well, but
291 will be removed prior to FreeBSD 14.0.
294 r362275 changed the internal API between the kernel RPC and the
295 NFS modules. As such, all the modules must be recompiled from
299 r364330 modified the internal API used between the NFS modules.
300 As such, all the NFS modules must be re-compiled from sources.
303 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
304 been upgraded to 11.0.0. Please see the 20141231 entry below for
305 information about prerequisites and upgrading, if you are not already
306 using clang 3.5.0 or higher.
309 r364092 modified the internal ABI used between the kernel NFS
310 modules. As such, all of these modules need to be rebuilt
311 from sources, so a version bump was done.
314 Makefile.inc has been updated to work around the issue documented in
315 20200729. It was a case where the optimization of using symbolic links
316 to point to binaries created a situation where we'd run new binaries
317 with old libraries starting midway through the installworld process.
320 r363679 has redefined some undefined behavior in regcomp(3); notably,
321 extraneous escapes of most ordinary characters will no longer be
322 accepted. An exp-run has identified all of the problems with this in
323 ports, but other non-ports software may need extra escapes removed to
324 continue to function.
326 Because of this change, installworld may encounter the following error
327 from rtld: Undefined symbol "regcomp@FBSD_1.6" -- It is imperative that
328 you do not halt installworld. Instead, let it run to completion (whether
329 successful or not) and run installworld once more.
332 A new implementation of bc and dc has been imported in r362681. This
333 implementation corrects non-conformant behavior of the previous bc
334 and adds GNU bc compatible options. It offers a number of extensions,
335 is much faster on large values, and has support for message catalogs
336 (a number of languages are already supported, contributions of further
337 languages welcome). The option WITHOUT_GH_BC can be used to build the
338 world with the previous versions of bc and dc.
341 r362639 changed the internal API used between the NFS kernel modules.
342 As such, they all need to be rebuilt from sources.
345 r362158 changed the arguments for VFS_CHECKEXP(). As such, any
346 out of tree file systems need to be modified and rebuilt.
347 Also, any file systems that are modules must be rebuilt.
350 read(2) of a directory fd is now rejected by default. root may
351 re-enable it for system root only on non-ZFS filesystems with the
352 security.bsd.allow_read_dir sysctl(8) MIB if
353 security.bsd.suser_enabled=1.
355 It may be advised to setup aliases for grep to default to `-d skip` if
356 commonly non-recursively grepping a list that includes directories and
357 the potential for the resulting stderr output is not tolerable. Example
358 aliases are now installed, commented out, in /root/.cshrc and
362 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
363 been upgraded to 10.0.1. Please see the 20141231 entry below for
364 information about prerequisites and upgrading, if you are not already
365 using clang 3.5.0 or higher.
368 Support for obsolete compilers has been removed from the build system.
369 Clang 6 and GCC 6.4 are the minimum supported versions.
372 closefrom(2) has been moved under COMPAT12, and replaced in libc with a
373 stub that calls close_range(2). If using a custom kernel configuration,
374 you may want to ensure that the COMPAT_FREEBSD12 option is included, as
375 a slightly older -CURRENT userland and older FreeBSD userlands may not
376 be functional without closefrom(2).
379 Upstream DTS from Linux 5.6 was merged and they now have the SID
380 and THS (Secure ID controller and THermal Sensor) node present.
381 The DTB overlays have now been removed from the tree for the H3/H5 and
382 A64 SoCs and the aw_sid and aw_thermal driver have been updated to
383 deal with upstream DTS. If you are using those overlays you need to
384 remove them from loader.conf and update the DTBs on the FAT partition.
387 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
388 been upgraded to 10.0.0. Please see the 20141231 entry below for
389 information about prerequisites and upgrading, if you are not already
390 using clang 3.5.0 or higher.
393 The amd(8) automount daemon has been removed from the source tree.
394 As of FreeBSD 10.1 autofs(5) is the preferred tool for automounting.
395 amd is still available in the sysutils/am-utils port.
398 Removed brooktree driver (bktr.4) from the tree.
401 The WITH_GPL_DTC option has been removed. The BSD-licenced device tree
402 compiler in usr.bin/dtc is used on all architectures which use dtc, and
403 the GPL dtc is available (if needed) from the sysutils/dtc port.
406 The WITHOUT_LLVM_LIBUNWIND option has been removed. LLVM's libunwind
407 is used by all supported CPU architectures.
410 GCC 4.2.1 has been removed from the tree. The WITH_GCC,
411 WITH_GCC_BOOTSTRAP, and WITH_GNUCXX options are no longer available.
412 Users who wish to build FreeBSD with GCC must use the external toolchain
416 ncurses has been updated to a newer version (6.2-20200215). Given the ABI
417 has changed, users will have to rebuild all the ports that are linked to
421 The size of struct vnet and the magic cookie have changed.
422 Users need to recompile libkvm and all modules using VIMAGE
423 together with their new kernel.
426 Defining the long deprecated NO_CTF, NO_DEBUG_FILES, NO_INSTALLLIB,
427 NO_MAN, NO_PROFILE, and NO_WARNS variables is now an error. Update
428 your Makefiles and scripts to define MK_<var>=no instead as required.
430 One exception to this is that program or library Makefiles should
431 define MAN to empty rather than setting MK_MAN=no.
434 Clang/LLVM is now the default compiler and LLD the default
438 make universe no longer uses GCC 4.2.1 on any architectures.
439 Architectures not supported by in-tree Clang/LLVM require an
440 external toolchain package.
443 GCC 4.2.1 is now not built by default, as part of the GCC 4.2.1
444 retirement plan. Specifically, the GCC, GCC_BOOTSTRAP, and GNUCXX
445 options default to off for all supported CPU architectures. As a
446 short-term transition aid they may be enabled via WITH_* options.
447 GCC 4.2.1 is expected to be removed from the tree on 2020-03-31.
450 Support for armv5 has been disconnected and is being removed. The
451 machine combination MACHINE=arm MACHINE_ARCH=arm is no longer valid.
452 You must now use a MACHINE_ARCH of armv6 or armv7. The default
453 MACHINE_ARCH for MACHINE=arm is now armv7.
456 Clang/LLVM is now the default compiler for all powerpc architectures.
457 LLD is now the default linker for powerpc64. The change for powerpc64
458 also includes a change to the ELFv2 ABI, incompatible with the existing
462 Kernel-loadable random(4) modules are no longer unloadable.
465 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
466 been upgraded to 9.0.1. Please see the 20141231 entry below for
467 information about prerequisites and upgrading, if you are not already
468 using clang 3.5.0 or higher.
471 r355677 has modified the internal interface used between the
472 NFS modules in the kernel. As such, they must all be upgraded
473 simultaneously. I will do a version bump for this.
476 The root certificates of the Mozilla CA Certificate Store have been
477 imported into the base system and can be managed with the certctl(8)
478 utility. If you have installed the security/ca_root_nss port or package
479 with the ETCSYMLINK option (the default), be advised that there may be
480 differences between those included in the port and those included in
481 base due to differences in nss branch used as well as general update
482 frequency. Note also that certctl(8) cannot manage certs in the
483 format used by the security/ca_root_nss port.
486 The amd(8) automount daemon has been disabled by default, and will be
487 removed in the future. As of FreeBSD 10.1 the autofs(5) is available
491 The nctgpio and wbwd drivers have been moved to the superio bus.
492 If you have one of these drivers in a kernel configuration, then
493 you should add device superio to it. If you use one of these drivers
494 as a module and you compile a custom set of modules, then you should
495 add superio to the set.
498 KPIs for network drivers to access interface addresses have changed.
499 Users need to recompile NIC driver modules together with kernel.
502 The net.link.tap.user_open sysctl no longer prevents user opening of
503 already created /dev/tapNN devices. Access is still controlled by
504 node permissions, just like tun devices. The net.link.tap.user_open
505 sysctl is now used only to allow users to perform devfs cloning of
506 tap devices, and the subsequent open may not succeed if the user is not
507 in the appropriate group. This sysctl may be deprecated/removed
508 completely in the future.
511 mips, powerpc, and sparc64 are no longer built as part of
512 universe / tinderbox unless MAKE_OBSOLETE_GCC is defined. If
513 not defined, mips, powerpc, and sparc64 builds will look for
514 the xtoolchain binaries and if installed use them for universe
515 builds. As llvm 9.0 becomes vetted for these architectures, they
516 will be removed from the list.
519 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
520 been upgraded to 9.0.0. Please see the 20141231 entry below for
521 information about prerequisites and upgrading, if you are not already
522 using clang 3.5.0 or higher.
525 The hpt27xx, hptmv, hptnr, and hptrr drivers have been removed from
526 GENERIC. They are available as modules and can be loaded by adding
527 to /boot/loader.conf hpt27xx_load="YES", hptmv_load="YES",
528 hptnr_load="YES", or hptrr_load="YES", respectively.
531 ntpd no longer by default locks its pages in memory, allowing them
532 to be paged out by the kernel. Use rlimit memlock to restore
533 historic BSD behaviour. For example, add "rlimit memlock 32"
534 to ntp.conf to lock up to 32 MB of ntpd address space in memory.
537 Several of ping6's options have been renamed for better consistency
538 with ping. If you use any of -ARWXaghmrtwx, you must update your
539 scripts. See ping6(8) for details.
542 The vfs.fusefs.sync_unmount and vfs.fusefs.init_backgrounded sysctls
543 and the "-o sync_unmount" and "-o init_backgrounded" mount options have
544 been removed from mount_fusefs(8). You can safely remove them from
545 your scripts, because they had no effect.
547 The vfs.fusefs.fix_broken_io, vfs.fusefs.sync_resize,
548 vfs.fusefs.refresh_size, vfs.fusefs.mmap_enable,
549 vfs.fusefs.reclaim_revoked, and vfs.fusefs.data_cache_invalidate
550 sysctls have been removed. If you felt the need to set any of them to
551 a non-default value, please tell asomers@FreeBSD.org why.
554 Default permissions on the /var/account/acct file (and copies of it
555 rotated by periodic daily scripts) are changed from 0644 to 0640
556 because the file contains sensitive information that should not be
557 world-readable. If the /var/account directory must be created by
558 rc.d/accounting, the mode used is now 0750. Admins who use the
559 accounting feature are encouraged to change the mode of an existing
560 /var/account directory to 0750 or 0700.
563 Entropy collection and the /dev/random device are no longer optional
564 components. The "device random" option has been removed.
565 Implementations of distilling algorithms can still be made loadable
566 with "options RANDOM_LOADABLE" (e.g., random_fortuna.ko).
569 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
570 been upgraded to 8.0.1. Please see the 20141231 entry below for
571 information about prerequisites and upgrading, if you are not already
572 using clang 3.5.0 or higher.
575 A fix was applied to i386 kernel modules to avoid panics with
576 dpcpu or vnet. Users need to recompile i386 kernel modules
577 having pcpu or vnet sections or they will refuse to load.
580 User-wired pages now have their own counter,
581 vm.stats.vm.v_user_wire_count. The vm.max_wired sysctl was renamed
582 to vm.max_user_wired and changed from an unsigned int to an unsigned
583 long. bhyve VMs wired with the -S are now subject to the user
584 wiring limit; the vm.max_user_wired sysctl may need to be tuned to
585 avoid running into the limit.
588 The IPSEC option has been removed from GENERIC. Users requiring
589 ipsec(4) must now load the ipsec(4) kernel module.
592 The tap(4) driver has been folded into tun(4), and the module has been
593 renamed to tuntap. You should update any kld_list="if_tap" or
594 kld_list="if_tun" entries in /etc/rc.conf, if_tap_load="YES" or
595 if_tun_load="YES" entries in /boot/loader.conf to load the if_tuntap
596 module instead, and "device tap" or "device tun" entries in kernel
597 config files to select the tuntap device instead.
600 The following knobs have been added related to tradeoffs between
601 safe use of the random device and availability in the absence of
604 kern.random.initial_seeding.bypass_before_seeding: tunable; set
605 non-zero to bypass the random device prior to seeding, or zero to
606 block random requests until the random device is initially seeded.
607 For now, set to 1 (unsafe) by default to restore pre-r346250 boot
608 availability properties.
610 kern.random.initial_seeding.read_random_bypassed_before_seeding:
611 read-only diagnostic sysctl that is set when bypass is enabled and
612 read_random(9) is bypassed, to enable programmatic handling of this
613 initial condition, if desired.
615 kern.random.initial_seeding.arc4random_bypassed_before_seeding:
616 Similar to the above, but for for arc4random(9) initial seeding.
618 kern.random.initial_seeding.disable_bypass_warnings: tunable; set
619 non-zero to disable warnings in dmesg when the same conditions are
620 met as for the diagnostic sysctls above. Defaults to zero, i.e.,
621 produce warnings in dmesg when the conditions are met.
624 The loadable random module KPI has changed; the random_infra_init()
625 routine now requires a 3rd function pointer for a bool (*)(void)
626 method that returns true if the random device is seeded (and
627 therefore unblocked).
630 r345895 reverts r320698. This implies that an nfsuserd(8) daemon
631 built from head sources between r320757 (July 6, 2017) and
632 r338192 (Aug. 22, 2018) will not work unless the "-use-udpsock"
633 is added to the command line.
634 nfsuserd daemons built from head sources that are post-r338192 are
635 not affected and should continue to work.
638 The fuse(4) module has been renamed to fusefs(4) for consistency with
639 other filesystems. You should update any kld_load="fuse" entries in
640 /etc/rc.conf, fuse_load="YES" entries in /boot/loader.conf, and
641 "options FUSE" entries in kernel config files.
644 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
645 8.0.0. Please see the 20141231 entry below for information about
646 prerequisites and upgrading, if you are not already using clang 3.5.0
650 geom_uzip(4) depends on the new module xz. If geom_uzip is statically
651 compiled into your custom kernel, add 'device xz' statement to the
655 drm and drm2 have been removed from the tree. Please see
656 https://wiki.freebsd.org/Graphics for the latest information on
657 migrating to the drm ports.
660 Iflib is no longer unconditionally compiled into the kernel. Drivers
661 using iflib and statically compiled into the kernel, now require
662 the 'device iflib' config option. For the same drivers loaded as
663 modules on kernels not having 'device iflib', the iflib.ko module
664 is loaded automatically.
667 The IEEE80211_AMPDU_AGE and AH_SUPPORT_AR5416 kernel configuration
668 options no longer exist since r343219 and r343427 respectively;
669 nothing uses them, so they should be just removed from custom
673 r342635 changes the way efibootmgr(8) works by requiring users to add
674 the -b (bootnum) parameter for commands where the bootnum was previously
675 specified with each option. For example 'efibootmgr -B 0001' is now
676 'efibootmgr -B -b 0001'.
679 r342286 modifies the NFSv4 server so that it obeys vfs.nfsd.nfs_privport
680 in the same as it is applied to NFSv2 and 3. This implies that NFSv4
681 servers that have vfs.nfsd.nfs_privport set will only allow mounts
682 from clients using a reserved port#. Since both the FreeBSD and Linux
683 NFSv4 clients use reserved port#s by default, this should not affect
687 The XLP config has been removed. We can't support 64-bit atomics in this
688 kernel because it is running in 32-bit mode. XLP users must transition
689 to running a 64-bit kernel (XLP64 or XLPN32).
691 The mips GXEMUL support has been removed from FreeBSD. MALTA* + qemu is
692 the preferred emulator today and we don't need two different ones.
694 The old sibyte / swarm / Broadcom BCM1250 support has been
695 removed from the mips port.
698 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
699 7.0.1. Please see the 20141231 entry below for information about
700 prerequisites and upgrading, if you are not already using clang 3.5.0
704 Remove the timed and netdate programs from the base tree. Setting
705 the time with these daemons has been obsolete for over a decade.
708 On amd64, arm64 and armv7 (architectures that install LLVM's ld.lld
709 linker as /usr/bin/ld) GNU ld is no longer installed as ld.bfd, as
710 it produces broken binaries when ifuncs are in use. Users needing
711 GNU ld should install the binutils port or package.
714 The BSD crtbegin and crtend code has been enabled by default. It has
715 had extensive testing on amd64, arm64, and i386. It can be disabled
716 by building a world with -DWITHOUT_BSD_CRTBEGIN.
719 The set of CTM commands (ctm, ctm_smail, ctm_rmail, ctm_dequeue)
720 has been converted to a port (misc/ctm) and will be removed from
721 FreeBSD-13. It is available as a package (ctm) for all supported
725 The default newsyslog.conf(5) file has been changed to only include
726 files in /etc/newsyslog.conf.d/ and /usr/local/etc/newsyslog.conf.d/ if
727 the filenames end in '.conf' and do not begin with a '.'.
729 You should check the configuration files in these two directories match
730 this naming convention. You can verify which configuration files are
731 being included using the command:
735 Ports for the DRM modules have been simplified. Now, amd64 users should
736 just install the drm-kmod port. All others should install
739 Graphics hardware that's newer than about 2010 usually works with
740 drm-kmod. For hardware older than 2013, however, some users will need
741 to use drm-legacy-kmod if drm-kmod doesn't work for them. Hardware older
742 than 2008 usually only works in drm-legacy-kmod. The graphics team can
743 only commit to hardware made since 2013 due to the complexity of the
744 market and difficulty to test all the older cards effectively. If you
745 have hardware supported by drm-kmod, you are strongly encouraged to use
746 that as you will get better support.
748 Other than KPI chasing, drm-legacy-kmod will not be updated. As outlined
749 elsewhere, the drm and drm2 modules will be eliminated from the src base
750 soon (with a limited exception for arm). Please update to the package
751 asap and report any issues to x11@freebsd.org.
753 Generally, anybody using the drm*-kmod packages should add
754 WITHOUT_DRM_MODULE=t and WITHOUT_DRM2_MODULE=t to avoid nasty
755 cross-threading surprises, especially with automatic driver
756 loading from X11 startup. These will become the defaults in 13-current
760 The ixlv(4) driver has been renamed to iavf(4). As a consequence,
761 custom kernel and module loading configuration files must be updated
762 accordingly. Moreover, interfaces previous presented as ixlvN to the
763 system are now exposed as iavfN and network configuration files must
764 be adjusted as necessary.
767 OpenSSL has been updated to version 1.1.1. This update included
768 additional various API changes throughout the base system. It is
769 important to rebuild third-party software after upgrading. The value
770 of __FreeBSD_version has been bumped accordingly.
773 The legacy DRM modules and drivers have now been added to the loader's
774 module blacklist, in favor of loading them with kld_list in rc.conf(5).
775 The module blacklist may be overridden with the loader.conf(5)
776 'module_blacklist' variable, but loading them via rc.conf(5) is strongly
780 The cam(4) based nda(4) driver will be used over nvd(4) by default on
781 powerpc64. You may set 'options NVME_USE_NVD=1' in your kernel conf or
782 loader tunable 'hw.nvme.use_nvd=1' if you wish to use the existing
783 driver. Make sure to edit /boot/etc/kboot.conf and fstab to use the
787 Reproducible build mode is now on by default, in preparation for
788 FreeBSD 12.0. This eliminates build metadata such as the user,
789 host, and time from the kernel (and uname), unless the working tree
790 corresponds to a modified checkout from a version control system.
791 The previous behavior can be obtained by setting the /etc/src.conf
792 knob WITHOUT_REPRODUCIBLE_BUILD.
795 The Yarrow CSPRNG has been removed from the kernel as it has not been
796 supported by its designers since at least 2003. Fortuna has been the
797 default since FreeBSD-11.
800 devctl freeze/thaw have gone into the tree, the rc scripts have been
801 updated to use them and devmatch has been changed. You should update
802 kernel, userland and rc scripts all at the same time.
805 The default interpreter has been switched from 4th to Lua.
806 LOADER_DEFAULT_INTERP, documented in build(7), will override the default
807 interpreter. If you have custom FORTH code you will need to set
808 LOADER_DEFAULT_INTERP=4th (valid values are 4th, lua or simp) in
809 src.conf for the build. This will create default hard links between
810 loader and loader_4th instead of loader and loader_lua, the new default.
811 If you are using UEFI it will create the proper hard link to loader.efi.
813 bhyve uses userboot.so. It remains 4th-only until some issues are solved
814 regarding coexisting with multiple versions of FreeBSD are resolved.
817 ls(1) now respects the COLORTERM environment variable used in other
818 systems and software to indicate that a colored terminal is both
819 supported and desired. If ls(1) is suddenly emitting colors, they may
820 be disabled again by either removing the unwanted COLORTERM from your
821 environment, or using `ls --color=never`. The ls(1) specific CLICOLOR
822 may not be observed in a future release.
825 The default pager for most commands has been changed to "less". To
826 restore the old behavior, set PAGER="more" and MANPAGER="more -s" in
830 The jedec_ts(4) driver has been removed. A superset of its functionality
831 is available in the jedec_dimm(4) driver, and the manpage for that
832 driver includes migration instructions. If you have "device jedec_ts"
833 in your kernel configuration file, it must be removed.
836 amd64/GENERIC now has EFI runtime services, EFIRT, enabled by default.
837 This should have no effect if the kernel is booted via BIOS/legacy boot.
838 EFIRT may be disabled via a loader tunable, efi.rt.disabled, if a system
839 has a buggy firmware that prevents a successful boot due to use of
843 Atmel AT91RM9200 and AT91SAM9, Cavium CNS 11xx and XScale
844 support has been removed from the tree. These ports were
845 obsolete and/or known to be broken for many years.
848 loader.efi has been augmented to participate more fully in the
849 UEFI boot manager protocol. loader.efi will now look at the
850 BootXXXX environment variable to determine if a specific kernel
851 or root partition was specified. XXXX is derived from BootCurrent.
852 efibootmgr(8) manages these standard UEFI variables.
855 zfsloader's functionality has now been folded into loader.
856 zfsloader is no longer necessary once you've updated your
857 boot blocks. For a transition period, we will install a
858 hardlink for zfsloader to loader to allow a smooth transition
859 until the boot blocks can be updated (hard link because old
860 zfs boot blocks don't understand symlinks).
863 ARM64 now have efifb support, if you want to have serial console
864 on your arm64 board when an screen is connected and the bootloader
865 setup a frame buffer for us to use, just add :
869 For Raspberry Pi 3 (RPI) users, this is needed even if you don't have
870 an screen connected as the firmware will setup a frame buffer are that
871 u-boot will expose as an EFI frame buffer.
874 New uid:gid added, ntpd:ntpd (123:123). Be sure to run mergemaster
875 or take steps to update /etc/passwd before doing installworld on
876 existing systems. Do not skip the "mergemaster -Fp" step before
877 installworld, as described in the update procedures near the bottom
878 of this document. Also, rc.d/ntpd now starts ntpd(8) as user ntpd
879 if the new mac_ntpd(4) policy is available, unless ntpd_flags or
880 the ntp config file contain options that change file/dir locations.
881 When such options (e.g., "statsdir" or "crypto") are used, ntpd can
882 still be run as non-root by setting ntpd_user=ntpd in rc.conf, after
883 taking steps to ensure that all required files/dirs are accessible
887 Big endian arm support has been removed.
890 The static environment setup in kernel configs is no longer mutually
891 exclusive with the loader(8) environment by default. In order to
892 restore the previous default behavior of disabling the loader(8)
893 environment if a static environment is present, you must specify
894 loader_env.disabled=1 in the static environment.
897 The ABI of syscalls used by management tools like sockstat and
898 netstat has been broken to allow 32-bit binaries to work on
899 64-bit kernels without modification. These programs will need
900 to match the kernel in order to function. External programs may
901 require minor modifications to accommodate a change of type in
902 structures from pointers to 64-bit virtual addresses.
905 On i386 and amd64 atomics are now inlined. Out of tree modules using
906 atomics will need to be rebuilt.
909 The '%I' format in the kern.corefile sysctl limits the number of
910 core files that a process can generate to the number stored in the
911 debug.ncores sysctl. The '%I' format is replaced by the single digit
912 index. Previously, if all indexes were taken the kernel would overwrite
913 only a core file with the highest index in a filename.
914 Currently the system will create a new core file if there is a free
915 index or if all slots are taken it will overwrite the oldest one.
918 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
919 6.0.1. Please see the 20141231 entry below for information about
920 prerequisites and upgrading, if you are not already using clang 3.5.0
924 r335753 introduced a new quoting method. However, etc/devd/devmatch.conf
925 needed to be changed to work with it. This change was made with r335763
926 and requires a mergemaster / etcupdate / etc to update the installed
930 r334930 changed the interface between the NFS modules, so they all
931 need to be rebuilt. r335018 did a __FreeBSD_version bump for this.
934 As of r334391 lld is the default amd64 system linker; it is installed
935 as /usr/bin/ld. Kernel build workarounds (see 20180510 entry) are no
939 The kernel / userland interface for devinfo changed, so you'll
940 need a new kernel and userland as a pair for it to work (rebuilding
941 lib/libdevinfo is all that's required). devinfo and devmatch will
942 not work, but everything else will when there's a mismatch.
945 The on-disk format for hwpmc callchain records has changed to include
946 threadid corresponding to a given record. This changes the field offsets
947 and thus requires that libpmcstat be rebuilt before using a kernel
951 The vxge(4) driver has been removed. This driver was introduced into
952 HEAD one week before the Exar left the Ethernet market and is not
953 known to be used. If you have device vxge in your kernel config file
957 The amd64 kernel now requires a ld that supports ifunc to produce a
958 working kernel, either lld or a newer binutils. lld is built by default
959 on amd64, and the 'buildkernel' target uses it automatically. However,
960 it is not the default linker, so building the kernel the traditional
961 way requires LD=ld.lld on the command line (or LD=/usr/local/bin/ld for
962 binutils port/package). lld will soon be default, and this requirement
965 NOTE: As of r334391 lld is the default system linker on amd64, and no
966 workaround is necessary.
969 The nxge(4) driver has been removed. This driver was for PCI-X 10g
970 cards made by s2io/Neterion. The company was acquired by Exar and
971 no longer sells or supports Ethernet products. If you have device
972 nxge in your kernel config file it must be removed.
975 The tz database (tzdb) has been updated to 2018e. This version more
976 correctly models time stamps in time zones with negative DST such as
977 Europe/Dublin (from 1971 on), Europe/Prague (1946/7), and
978 Africa/Windhoek (1994/2017). This does not affect the UT offsets, only
979 time zone abbreviations and the tm_isdst flag.
982 The ixgb(4) driver has been removed. This driver was for an early and
983 uncommon legacy PCI 10GbE for a single ASIC, Intel 82597EX. Intel
984 quickly shifted to the long lived ixgbe family. If you have device
985 ixgb in your kernel config file it must be removed.
988 The lmc(4) driver has been removed. This was a WAN interface
989 card that was already reportedly rare in 2003, and had an ambiguous
990 license. If you have device lmc in your kernel config file it must
994 Support for Arcnet networks has been removed. If you have device
995 arcnet or device cm in your kernel config file they must be
999 Support for FDDI networks has been removed. If you have device
1000 fddi or device fpa in your kernel config file they must be
1004 In addition to supporting RFC 3164 formatted messages, the
1005 syslogd(8) service is now capable of parsing RFC 5424 formatted
1006 log messages. The main benefit of using RFC 5424 is that clients
1007 may now send log messages with timestamps containing year numbers,
1008 microseconds and time zone offsets.
1010 Similarly, the syslog(3) C library function has been altered to
1011 send RFC 5424 formatted messages to the local system logging
1012 daemon. On systems using syslogd(8), this change should have no
1013 negative impact, as long as syslogd(8) and the C library are
1014 updated at the same time. On systems using a different system
1015 logging daemon, it may be necessary to make configuration
1016 adjustments, depending on the software used.
1018 When using syslog-ng, add the 'syslog-protocol' flag to local
1019 input sources to enable parsing of RFC 5424 formatted messages:
1022 unix-dgram("/var/run/log" flags(syslog-protocol));
1025 When using rsyslog, disable the 'SysSock.UseSpecialParser' option
1026 of the 'imuxsock' module to let messages be processed by the
1027 regular RFC 3164/5424 parsing pipeline:
1029 module(load="imuxsock" SysSock.UseSpecialParser="off")
1031 Do note that these changes only affect communication between local
1032 applications and syslogd(8). The format that syslogd(8) uses to
1033 store messages on disk or forward messages to other systems
1034 remains unchanged. syslogd(8) still uses RFC 3164 for these
1035 purposes. Options to customize this behaviour will be added in the
1036 future. Utilities that process log files stored in /var/log are
1037 thus expected to continue to function as before.
1039 __FreeBSD_version has been incremented to 1200061 to denote this
1043 Support for token ring networks has been removed. If you
1044 have "device token" in your kernel config you should remove
1045 it. No device drivers supported token ring.
1048 makefs was modified to be able to tag ISO9660 El Torito boot catalog
1049 entries as EFI instead of overloading the i386 tag as done previously.
1050 The amd64 mkisoimages.sh script used to build amd64 ISO images for
1051 release was updated to use this. This may mean that makefs must be
1052 updated before "make cdrom" can be run in the release directory. This
1053 should be as simple as:
1055 $ cd $SRCDIR/usr.sbin/makefs
1056 $ make depend all install
1059 FreeBSD boot loader enhanced with Lua scripting. It's purely opt-in for
1060 now by building WITH_LOADER_LUA and WITHOUT_FORTH in /etc/src.conf.
1061 Co-existence for the transition period will come shortly. Booting is a
1062 complex environment and test coverage for Lua-enabled loaders has been
1063 thin, so it would be prudent to assume it might not work and make
1064 provisions for backup boot methods.
1067 devmatch functionality has been turned on in devd. It will automatically
1068 load drivers for unattached devices. This may cause unexpected drivers
1069 to be loaded. Please report any problems to current@ and
1073 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
1074 6.0.0. Please see the 20141231 entry below for information about
1075 prerequisites and upgrading, if you are not already using clang 3.5.0
1079 LLVM's lld linker is now used as the FreeBSD/amd64 bootstrap linker.
1080 This means it is used to link the kernel and userland libraries and
1081 executables, but is not yet installed as /usr/bin/ld by default.
1083 To revert to ld.bfd as the bootstrap linker, in /etc/src.conf set
1084 WITHOUT_LLD_BOOTSTRAP=yes
1087 On i386, pmtimer has been removed. Its functionality has been folded
1088 into apm. It was a no-op on ACPI in current for a while now (but was
1089 still needed on i386 in FreeBSD 11 and earlier). Users may need to
1090 remove it from kernel config files.
1093 The use of RSS hash from the network card aka flowid has been
1094 disabled by default for lagg(4) as it's currently incompatible with
1095 the lacp and loadbalance protocols.
1097 This can be re-enabled by setting the following in loader.conf:
1098 net.link.lagg.default_use_flowid="1"
1101 The SW_WATCHDOG option is no longer necessary to enable the
1102 hardclock-based software watchdog if no hardware watchdog is
1103 configured. As before, SW_WATCHDOG will cause the software
1104 watchdog to be enabled even if a hardware watchdog is configured.
1107 r326887 fixes the issue described in the 20171214 UPDATING entry.
1108 r326888 flips the switch back to building GELI support always.
1111 r362593 broke ZFS + GELI support for reasons unknown. However,
1112 it also broke ZFS support generally, so GELI has been turned off
1113 by default as the lesser evil in r326857. If you boot off ZFS and/or
1114 GELI, it might not be a good time to update.
1117 PowerPC users must update loader(8) by rebuilding world before
1118 installing a new kernel, as the protocol connecting them has
1119 changed. Without the update, loader metadata will not be passed
1120 successfully to the kernel and users will have to enter their
1121 root partition at the kernel mountroot prompt to continue booting.
1122 Newer versions of loader can boot old kernels without issue.
1125 The LOADER_FIREWIRE_SUPPORT build variable as been renamed to
1126 WITH/OUT_LOADER_FIREWIRE. LOADER_{NO_,}GELI_SUPPORT has been renamed
1127 to WITH/OUT_LOADER_GELI.
1130 The naive and non-compliant support of posix_fallocate(2) in ZFS
1131 has been removed as of r325320. The system call now returns EINVAL
1132 when used on a ZFS file. Although the new behavior complies with the
1133 standard, some consumers are not prepared to cope with it.
1134 One known victim is lld prior to r325420.
1137 Building in a FreeBSD src checkout will automatically create object
1138 directories now rather than store files in the current directory if
1139 'make obj' was not ran. Calling 'make obj' is no longer necessary.
1140 This feature can be disabled by setting WITHOUT_AUTO_OBJ=yes in
1141 /etc/src-env.conf (not /etc/src.conf), or passing the option in the
1145 The default MAKEOBJDIR has changed from /usr/obj/<srcdir> for native
1146 builds, and /usr/obj/<arch>/<srcdir> for cross-builds, to a unified
1147 /usr/obj/<srcdir>/<arch>. This behavior can be changed to the old
1148 format by setting WITHOUT_UNIFIED_OBJDIR=yes in /etc/src-env.conf,
1149 the environment, or with -DWITHOUT_UNIFIED_OBJDIR when building.
1150 The UNIFIED_OBJDIR option is a transitional feature that will be
1151 removed for 12.0 release; please migrate to the new format for any
1152 tools by looking up the OBJDIR used by 'make -V .OBJDIR' means rather
1153 than hardcoding paths.
1156 The native-xtools target no longer installs the files by default to the
1157 OBJDIR. Use the native-xtools-install target with a DESTDIR to install
1158 to ${DESTDIR}/${NXTP} where NXTP defaults to /nxb-bin.
1161 As part of the boot loader infrastructure cleanup, LOADER_*_SUPPORT
1162 options are changing from controlling the build if defined / undefined
1163 to controlling the build with explicit 'yes' or 'no' values. They will
1164 shift to WITH/WITHOUT options to match other options in the system.
1167 libstand has turned into a private library for sys/boot use only.
1168 It is no longer supported as a public interface outside of sys/boot.
1171 The arm port has split armv6 into armv6 and armv7. armv7 is now
1172 a valid TARGET_ARCH/MACHINE_ARCH setting. If you have an armv7 system
1173 and are running a kernel from before r324363, you will need to add
1174 MACHINE_ARCH=armv7 to 'make buildworld' to do a native build.
1177 When building multiple kernels using KERNCONF, non-existent KERNCONF
1178 files will produce an error and buildkernel will fail. Previously
1179 missing KERNCONF files silently failed giving no indication as to
1180 why, only to subsequently discover during installkernel that the
1181 desired kernel was never built in the first place.
1184 The default serial number format for CTL LUNs has changed. This will
1185 affect users who use /dev/diskid/* device nodes, or whose FibreChannel
1186 or iSCSI clients care about their LUNs' serial numbers. Users who
1187 require serial number stability should hardcode serial numbers in
1191 For 32-bit arm compiled for hard-float support, soft-floating point
1192 binaries now always get their shared libraries from
1193 LD_SOFT_LIBRARY_PATH (in the past, this was only used if
1194 /usr/libsoft also existed). Only users with a hard-float ld.so, but
1195 soft-float everything else should be affected.
1198 The geli password typed at boot is now hidden. To restore the previous
1199 behavior, see geli(8) for configuration options.
1202 Move PMTUD blackhole counters to TCPSTATS and remove them from bare
1203 sysctl values. Minor nit, but requires a rebuild of both world/kernel
1207 "make check" behavior (made in ^/head@r295380) has been changed to
1208 execute from a limited sandbox, as opposed to executing from
1212 - The "beforecheck" and "aftercheck" targets are now specified.
1213 - ${CHECKDIR} (added in commit noted above) has been removed.
1214 - Legacy behavior can be enabled by setting
1215 WITHOUT_MAKE_CHECK_USE_SANDBOX in src.conf(5) or the environment.
1217 If the limited sandbox mode is enabled, "make check" will execute
1218 "make distribution", then install, execute the tests, and clean up the
1219 sandbox if successful.
1221 The "make distribution" and "make install" targets are typically run as
1222 root to set appropriate permissions and ownership at installation time.
1223 The end-user should set "WITH_INSTALL_AS_USER" in src.conf(5) or the
1224 environment if executing "make check" with limited sandbox mode using
1225 an unprivileged user.
1228 Since the switch to GPT disk labels, fsck for UFS/FFS has been
1229 unable to automatically find alternate superblocks. As of r322297,
1230 the information needed to find alternate superblocks has been
1231 moved to the end of the area reserved for the boot block.
1232 Filesystems created with a newfs of this vintage or later
1233 will create the recovery information. If you have a filesystem
1234 created prior to this change and wish to have a recovery block
1235 created for your filesystem, you can do so by running fsck in
1236 foreground mode (i.e., do not use the -p or -y options). As it
1237 starts, fsck will ask ``SAVE DATA TO FIND ALTERNATE SUPERBLOCKS''
1238 to which you should answer yes.
1241 As of r321665, an NFSv4 server configuration that services
1242 Kerberos mounts or clients that do not support the uid/gid in
1243 owner/owner_group string capability, must explicitly enable
1244 the nfsuserd daemon by adding nfsuserd_enable="YES" to the
1245 machine's /etc/rc.conf file.
1248 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 5.0.0.
1249 Please see the 20141231 entry below for information about prerequisites
1250 and upgrading, if you are not already using clang 3.5.0 or higher.
1253 WITHOUT_RCMDS is now the default. Set WITH_RCMDS if you need the
1254 r-commands (rlogin, rsh, etc.) to be built with the base system.
1257 The FreeBSD/powerpc platform now uses a 64-bit type for time_t. This is
1258 a very major ABI incompatible change, so users of FreeBSD/powerpc must
1259 be careful when performing source upgrades. It is best to run
1260 'make installworld' from an alternate root system, either a live
1261 CD/memory stick, or a temporary root partition. Additionally, all ports
1262 must be recompiled. powerpc64 is largely unaffected, except in the case
1263 of 32-bit compatibility. All 32-bit binaries will be affected.
1266 Forward compatibility for the "ino64" project have been committed. This
1267 will allow most new binaries to run on older kernels in a limited
1268 fashion. This prevents many of the common foot-shooting actions in the
1269 upgrade as well as the limited ability to roll back the kernel across
1270 the ino64 upgrade. Complicated use cases may not work properly, though
1271 enough simpler ones work to allow recovery in most situations.
1274 Switch back to the BSDL dtc (Device Tree Compiler). Set WITH_GPL_DTC
1275 if you require the GPL compiler.
1278 The internal ABI used for communication between the NFS kernel modules
1279 was changed by r320085, so __FreeBSD_version was bumped to
1280 ensure all the NFS related modules are updated together.
1283 The ABI of struct event was changed by extending the data
1284 member to 64bit and adding ext fields. For upgrade, same
1285 precautions as for the entry 20170523 "ino64" must be
1289 The GNU roff toolchain has been removed from base. To render manpages
1290 which are not supported by mandoc(1), man(1) can fallback on GNU roff
1291 from ports (and recommends to install it).
1292 To render roff(7) documents, consider using GNU roff from ports or the
1293 heirloom doctools roff toolchain from ports via pkg install groff or
1294 via pkg install heirloom-doctools.
1297 The ath(4) and ath_hal(4) modules now build piecemeal to allow for
1298 smaller runtime footprint builds. This is useful for embedded systems
1299 which only require one chipset support.
1301 If you load it as a module, make sure this is in /boot/loader.conf:
1305 This will load the HAL, all chip/RF backends and if_ath_pci.
1306 If you have if_ath_pci in /boot/loader.conf, ensure it is after
1307 if_ath or it will not load any HAL chipset support.
1309 If you want to selectively load things (eg on ye cheape ARM/MIPS
1310 platforms where RAM is at a premium) you should:
1313 * load the chip modules in question
1314 * load ath_rate, ath_dfs
1316 * load if_ath_pci and/or if_ath_ahb depending upon your particular
1317 bus bind type - this is where probe/attach is done.
1319 For further comments/feedback, poke adrian@ .
1322 The "ino64" 64-bit inode project has been committed, which extends
1323 a number of types to 64 bits. Upgrading in place requires care and
1324 adherence to the documented upgrade procedure.
1326 If using a custom kernel configuration ensure that the
1327 COMPAT_FREEBSD11 option is included (as during the upgrade the
1328 system will be running the ino64 kernel with the existing world).
1330 For the safest in-place upgrade begin by removing previous build
1331 artifacts via "rm -rf /usr/obj/*". Then, carefully follow the full
1332 procedure documented below under the heading "To rebuild everything and
1333 install it on the current system." Specifically, a reboot is required
1334 after installing the new kernel before installing world. While an
1335 installworld normally works by accident from multiuser after rebooting
1336 the proper kernel, there are many cases where this will fail across this
1337 upgrade and installworld from single user is required.
1340 The NATM framework including the en(4), fatm(4), hatm(4), and
1341 patm(4) devices has been removed. Consumers should plan a
1342 migration before the end-of-life date for FreeBSD 11.
1345 GNU diff has been replaced by a BSD licensed diff. Some features of GNU
1346 diff has not been implemented, if those are needed a newer version of
1347 GNU diff is available via the diffutils package under the gdiff name.
1350 As of r316810 for ipfilter, keep frags is no longer assumed when
1351 keep state is specified in a rule. r316810 aligns ipfilter with
1352 documentation in man pages separating keep frags from keep state.
1353 This allows keep state to be specified without forcing keep frags
1354 and allows keep frags to be specified independently of keep state.
1355 To maintain previous behaviour, also specify keep frags with
1356 keep state (as documented in ipf.conf.5).
1359 arm64 builds now use the base system LLD 4.0.0 linker by default,
1360 instead of requiring that the aarch64-binutils port or package be
1361 installed. To continue using aarch64-binutils, set
1362 CROSS_BINUTILS_PREFIX=/usr/local/aarch64-freebsd/bin .
1365 The UDP optimization in entry 20160818 that added the sysctl
1366 net.inet.udp.require_l2_bcast has been reverted. L2 broadcast
1367 packets will no longer be treated as L3 broadcast packets.
1370 Binds and sends to the loopback addresses, IPv6 and IPv4, will now
1371 use any explicitly assigned loopback address available in the jail
1372 instead of using the first assigned address of the jail.
1375 The ctl.ko module no longer implements the iSCSI target frontend:
1376 cfiscsi.ko does instead.
1378 If building cfiscsi.ko as a kernel module, the module can be loaded
1379 via one of the following methods:
1380 - `cfiscsi_load="YES"` in loader.conf(5).
1381 - Add `cfiscsi` to `$kld_list` in rc.conf(5).
1382 - ctladm(8)/ctld(8), when compiled with iSCSI support
1383 (`WITH_ISCSI=yes` in src.conf(5))
1385 Please see cfiscsi(4) for more details.
1388 The mmcsd.ko module now additionally depends on geom_flashmap.ko.
1389 Also, mmc.ko and mmcsd.ko need to be a matching pair built from the
1390 same source (previously, the dependency of mmcsd.ko on mmc.ko was
1391 missing, but mmcsd.ko now will refuse to load if it is incompatible
1395 The syntax of ipfw(8) named states was changed to avoid ambiguity.
1396 If you have used named states in the firewall rules, you need to modify
1397 them after installworld and before rebooting. Now named states must
1398 be prefixed with colon.
1401 The old drm (sys/dev/drm/) drivers for i915 and radeon have been
1402 removed as the userland we provide cannot use them. The KMS version
1403 (sys/dev/drm2) supports the same hardware.
1406 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 4.0.0.
1407 Please see the 20141231 entry below for information about prerequisites
1408 and upgrading, if you are not already using clang 3.5.0 or higher.
1411 The code that provides support for ZFS .zfs/ directory functionality
1412 has been reimplemented. It's not possible now to create a snapshot
1413 by mkdir under .zfs/snapshot/. That should be the only user visible
1417 EISA bus support has been removed. The WITH_EISA option is no longer
1421 MCA bus support has been removed.
1424 The WITH_LLD_AS_LD / WITHOUT_LLD_AS_LD build knobs have been renamed
1425 WITH_LLD_IS_LD / WITHOUT_LLD_IS_LD, for consistency with CLANG_IS_CC.
1428 The EM_MULTIQUEUE kernel configuration option is deprecated now that
1429 the em(4) driver conforms to iflib specifications.
1432 The igb(4), em(4) and lem(4) ethernet drivers are now implemented via
1433 IFLIB. If you have a custom kernel configuration that excludes em(4)
1434 but you use igb(4), you need to re-add em(4) to your custom
1438 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.1.
1439 Please see the 20141231 entry below for information about prerequisites
1440 and upgrading, if you are not already using clang 3.5.0 or higher.
1443 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.0.
1444 Please see the 20141231 entry below for information about prerequisites
1445 and upgrading, if you are not already using clang 3.5.0 or higher.
1448 The layout of the pmap structure has changed for powerpc to put the pmap
1449 statistics at the front for all CPU variations. libkvm(3) and all tools
1450 that link against it need to be recompiled.
1453 isl(4) and cyapa(4) drivers now require a new driver,
1454 chromebook_platform(4), to work properly on Chromebook-class hardware.
1455 On other types of hardware the drivers may need to be configured using
1456 device hints. Please see the corresponding manual pages for details.
1459 The urtwn(4) driver was merged into rtwn(4) and now consists of
1460 rtwn(4) main module + rtwn_usb(4) and rtwn_pci(4) bus-specific
1462 Also, firmware for RTL8188CE was renamed due to possible name
1463 conflict (rtwnrtl8192cU(B) -> rtwnrtl8192cE(B))
1466 GNU rcs has been removed from base. It is available as packages:
1467 - rcs: Latest GPLv3 GNU rcs version.
1468 - rcs57: Copy of the latest version of GNU rcs (GPLv2) before it was
1472 Use of the cc_cdg, cc_chd, cc_hd, or cc_vegas congestion control
1473 modules now requires that the kernel configuration contain the
1474 TCP_HHOOK option. (This option is included in the GENERIC kernel.)
1477 The WITHOUT_ELFCOPY_AS_OBJCOPY src.conf(5) knob has been retired.
1478 ELF Tool Chain's elfcopy is always installed as /usr/bin/objcopy.
1481 Relocatable object files with the extension of .So have been renamed
1482 to use an extension of .pico instead. The purpose of this change is
1483 to avoid a name clash with shared libraries on case-insensitive file
1484 systems. On those file systems, foo.So is the same file as foo.so.
1487 GNU rcs has been turned off by default. It can (temporarily) be built
1488 again by adding WITH_RCS knob in src.conf.
1489 Otherwise, GNU rcs is available from packages:
1490 - rcs: Latest GPLv3 GNU rcs version.
1491 - rcs57: Copy of the latest version of GNU rcs (GPLv2) from base.
1494 The backup_uses_rcs functionality has been removed from rc.subr.
1497 The queue(3) debugging macro, QUEUE_MACRO_DEBUG, has been split into
1498 two separate components, QUEUE_MACRO_DEBUG_TRACE and
1499 QUEUE_MACRO_DEBUG_TRASH. Define both for the original
1500 QUEUE_MACRO_DEBUG behavior.
1503 r304787 changed some ioctl interfaces between the iSCSI userspace
1504 programs and the kernel. ctladm, ctld, iscsictl, and iscsid must be
1505 rebuilt to work with new kernels. __FreeBSD_version has been bumped
1509 The UDP receive code has been updated to only treat incoming UDP
1510 packets that were addressed to an L2 broadcast address as L3
1511 broadcast packets. It is not expected that this will affect any
1512 standards-conforming UDP application. The new behaviour can be
1513 disabled by setting the sysctl net.inet.udp.require_l2_bcast to
1517 Remove the openbsd_poll system call.
1518 __FreeBSD_version has been bumped because of this.
1521 The stable/11 branch has been created from head@r302406.
1524 The libc stub for the pipe(2) system call has been replaced with
1525 a wrapper that calls the pipe2(2) system call and the pipe(2)
1526 system call is now only implemented by the kernels that include
1527 "options COMPAT_FREEBSD10" in their config file (this is the
1528 default). Users should ensure that this option is enabled in
1529 their kernel or upgrade userspace to r302092 before upgrading their
1533 CAM will now strip leading spaces from SCSI disks' serial numbers.
1534 This will affect users who create UFS filesystems on SCSI disks using
1535 those disk's diskid device nodes. For example, if /etc/fstab
1536 previously contained a line like
1537 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should
1538 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom
1539 transforms like gmirror may also be affected. ZFS users should
1543 The bitstring(3) API has been updated with new functionality and
1544 improved performance. But it is binary-incompatible with the old API.
1545 Objects built with the new headers may not be linked against objects
1546 built with the old headers.
1549 The brk and sbrk functions have been removed from libc on arm64.
1550 Binutils from ports has been updated to not link to these
1551 functions and should be updated to the latest version before
1552 installing a new libc.
1555 The armv6 port now defaults to hard float ABI. Limited support
1556 for running both hardfloat and soft float on the same system
1557 is available using the libraries installed with -DWITH_LIBSOFT.
1558 This has only been tested as an upgrade path for installworld
1559 and packages may fail or need manual intervention to run. New
1560 packages will be needed.
1562 To update an existing self-hosted armv6hf system, you must add
1563 TARGET_ARCH=armv6 on the make command line for both the build
1564 and the install steps.
1567 Kernel modules compiled outside of a kernel build now default to
1568 installing to /boot/modules instead of /boot/kernel. Many kernel
1569 modules built this way (such as those in ports) already overrode
1570 KMODDIR explicitly to install into /boot/modules. However,
1571 manually building and installing a module from /sys/modules will
1572 now install to /boot/modules instead of /boot/kernel.
1575 The CAM I/O scheduler has been committed to the kernel. There should be
1576 no user visible impact. This does enable NCQ Trim on ada SSDs. While the
1577 list of known rogues that claim support for this but actually corrupt
1578 data is believed to be complete, be on the lookout for data
1579 corruption. The known rogue list is believed to be complete:
1581 o Crucial MX100, M550 drives with MU01 firmware.
1582 o Micron M510 and M550 drives with MU01 firmware.
1583 o Micron M500 prior to MU07 firmware
1584 o Samsung 830, 840, and 850 all firmwares
1585 o FCCT M500 all firmwares
1587 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware
1588 with working NCQ TRIM. For Micron branded drives, see your sales rep for
1589 updated firmware. Black listed drives will work correctly because these
1590 drives work correctly so long as no NCQ TRIMs are sent to them. Given
1591 this list is the same as found in Linux, it's believed there are no
1592 other rogues in the market place. All other models from the above
1595 To be safe, if you are at all concerned, you can quirk each of your
1596 drives to prevent NCQ from being sent by setting:
1597 kern.cam.ada.X.quirks="0x2"
1598 in loader.conf. If the drive requires the 4k sector quirk, set the
1599 quirks entry to 0x3.
1602 The FAST_DEPEND build option has been removed and its functionality is
1603 now the one true way. The old mkdep(1) style of 'make depend' has
1604 been removed. See 20160311 for further details.
1607 Resource range types have grown from unsigned long to uintmax_t. All
1608 drivers, and anything using libdevinfo, need to be recompiled.
1611 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree
1612 builds. It no longer runs mkdep(1) during 'make depend', and the
1613 'make depend' stage can safely be skipped now as it is auto ran
1614 when building 'make all' and will generate all SRCS and DPSRCS before
1615 building anything else. Dependencies are gathered at compile time with
1616 -MF flags kept in separate .depend files per object file. Users should
1617 run 'make cleandepend' once if using -DNO_CLEAN to clean out older
1618 stale .depend files.
1621 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into
1622 kernel modules. Therefore, if you load any kernel modules at boot time,
1623 please install the boot loaders after you install the kernel, but before
1627 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1628 make installkernel KERNCONF=YOUR_KERNEL_HERE
1629 make -C sys/boot install
1630 <reboot in single user>
1632 Then follow the usual steps, described in the General Notes section,
1636 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please
1637 see the 20141231 entry below for information about prerequisites and
1638 upgrading, if you are not already using clang 3.5.0 or higher.
1641 The AIO subsystem is now a standard part of the kernel. The
1642 VFS_AIO kernel option and aio.ko kernel module have been removed.
1643 Due to stability concerns, asynchronous I/O requests are only
1644 permitted on sockets and raw disks by default. To enable
1645 asynchronous I/O requests on all file types, set the
1646 vfs.aio.enable_unsafe sysctl to a non-zero value.
1649 The ELF object manipulation tool objcopy is now provided by the
1650 ELF Tool Chain project rather than by GNU binutils. It should be a
1651 drop-in replacement, with the addition of arm64 support. The
1652 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set
1653 to obtain the GNU version if necessary.
1656 Building ZFS pools on top of zvols is prohibited by default. That
1657 feature has never worked safely; it's always been prone to deadlocks.
1658 Using a zvol as the backing store for a VM guest's virtual disk will
1659 still work, even if the guest is using ZFS. Legacy behavior can be
1660 restored by setting vfs.zfs.vol.recursive=1.
1663 The NONE and HPN patches has been removed from OpenSSH. They are
1664 still available in the security/openssh-portable port.
1667 With the addition of ypldap(8), a new _ypldap user is now required
1668 during installworld. "mergemaster -p" can be used to add the user
1669 prior to installworld, as documented in the handbook.
1672 The tftp loader (pxeboot) now uses the option root-path directive. As a
1673 consequence it no longer looks for a pxeboot.4th file on the tftp
1674 server. Instead it uses the regular /boot infrastructure as with the
1678 The code to start recording plug and play data into the modules has
1679 been committed. While the old tools will properly build a new kernel,
1680 a number of warnings about "unknown metadata record 4" will be produced
1681 for an older kldxref. To avoid such warnings, make sure to rebuild
1682 the kernel toolchain (or world). Make sure that you have r292078 or
1683 later when trying to build 292077 or later before rebuilding.
1686 Debug data files are now built by default with 'make buildworld' and
1687 installed with 'make installworld'. This facilitates debugging but
1688 requires more disk space both during the build and for the installed
1689 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes
1693 r291527 changed the internal interface between the nfsd.ko and
1694 nfscommon.ko modules. As such, they must both be upgraded to-gether.
1695 __FreeBSD_version has been bumped because of this.
1698 Add support for unicode collation strings leads to a change of
1699 order of files listed by ls(1) for example. To get back to the old
1700 behaviour, set LC_COLLATE environment variable to "C".
1702 Databases administrators will need to reindex their databases given
1703 collation results will be different.
1705 Due to a bug in install(1) it is recommended to remove the ancient
1706 locales before running make installworld.
1708 rm -rf /usr/share/locale/*
1711 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring
1712 libcrypto.so.7 or libssl.so.7 must be recompiled.
1715 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0.
1716 Kernel modules isp_2400_multi and isp_2500_multi were removed and
1717 should be replaced with isp_2400 and isp_2500 modules respectively.
1720 The build previously allowed using 'make -n' to not recurse into
1721 sub-directories while showing what commands would be executed, and
1722 'make -n -n' to recursively show commands. Now 'make -n' will recurse
1723 and 'make -N' will not.
1726 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster
1727 and etcupdate will now use this file. A custom sendmail.cf is now
1728 updated via this mechanism rather than via installworld. If you had
1729 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may
1730 want to remove the exclusion or change it to "always install".
1731 /etc/mail/sendmail.cf is now managed the same way regardless of
1732 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using
1733 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior.
1736 Compatibility shims for legacy ATA device names have been removed.
1737 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases
1738 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.*
1739 environment variables, /dev/ad* and /dev/ar* symbolic links.
1742 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0.
1743 Please see the 20141231 entry below for information about prerequisites
1744 and upgrading, if you are not already using clang 3.5.0 or higher.
1747 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/,
1748 and renamed from .symbols to .debug. This reduces the size requirements
1749 on the boot partition or file system and provides consistency with
1750 userland debug files.
1752 When using the supported kernel installation method the
1753 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old)
1754 as is done with /boot/kernel.
1756 Developers wishing to maintain the historical behavior of installing
1757 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5).
1760 The wireless drivers had undergone changes that remove the 'parent
1761 interface' from the ifconfig -l output. The rc.d network scripts
1762 used to check presence of a parent interface in the list, so old
1763 scripts would fail to start wireless networking. Thus, etcupdate(3)
1764 or mergemaster(8) run is required after kernel update, to update your
1765 rc.d scripts in /etc.
1768 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl'
1769 These configurations are now automatically interpreted as
1770 'scrub fragment reassemble'.
1773 Kernel-loadable modules for the random(4) device are back. To use
1774 them, the kernel must have
1777 options RANDOM_LOADABLE
1779 kldload(8) can then be used to load random_fortuna.ko
1780 or random_yarrow.ko. Please note that due to the indirect
1781 function calls that the loadable modules need to provide,
1782 the build-in variants will be slightly more efficient.
1784 The random(4) kernel option RANDOM_DUMMY has been retired due to
1785 unpopularity. It was not all that useful anyway.
1788 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired.
1789 Control over building the ELF Tool Chain tools is now provided by
1790 the WITHOUT_TOOLCHAIN knob.
1793 The polarity of Pulse Per Second (PPS) capture events with the
1794 uart(4) driver has been corrected. Prior to this change the PPS
1795 "assert" event corresponded to the trailing edge of a positive PPS
1796 pulse and the "clear" event was the leading edge of the next pulse.
1798 As the width of a PPS pulse in a typical GPS receiver is on the
1799 order of 1 millisecond, most users will not notice any significant
1800 difference with this change.
1802 Anyone who has compensated for the historical polarity reversal by
1803 configuring a negative offset equal to the pulse width will need to
1804 remove that workaround.
1807 The default group assigned to /dev/dri entries has been changed
1808 from 'wheel' to 'video' with the id of '44'. If you want to have
1809 access to the dri devices please add yourself to the video group
1812 # pw groupmod video -m $USER
1815 The menu.rc and loader.rc files will now be replaced during
1816 upgrades. Please migrate local changes to menu.rc.local and
1817 loader.rc.local instead.
1820 GNU Binutils versions of addr2line, c++filt, nm, readelf, size,
1821 strings and strip have been removed. The src.conf(5) knob
1822 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools.
1825 As ZFS requires more kernel stack pages than is the default on some
1826 architectures e.g. i386, it now warns if KSTACK_PAGES is less than
1827 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing).
1829 Please consider using 'options KSTACK_PAGES=X' where X is greater
1830 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations.
1833 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0
1834 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by
1835 default, i.e., they will not contain "::". For example, instead
1836 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet
1837 to have a more specific match, such as different map entries for
1838 IPv6:0:0 vs IPv6:0. This change requires that configuration
1839 data (including maps, files, classes, custom ruleset, etc.) must
1840 use the same format, so make certain such configuration data is
1841 upgrading. As a very simple check search for patterns like
1842 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old
1843 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or
1844 the cf option UseCompressedIPv6Addresses.
1847 The default kernel entropy-processing algorithm is now
1848 Fortuna, replacing Yarrow.
1850 Assuming you have 'device random' in your kernel config
1851 file, the configurations allow a kernel option to override
1852 this default. You may choose *ONE* of:
1854 options RANDOM_YARROW # Legacy /dev/random algorithm.
1855 options RANDOM_DUMMY # Blocking-only driver.
1857 If you have neither, you get Fortuna. For most people,
1858 read no further, Fortuna will give a /dev/random that works
1859 like it always used to, and the difference will be irrelevant.
1861 If you remove 'device random', you get *NO* kernel-processed
1862 entropy at all. This may be acceptable to folks building
1863 embedded systems, but has complications. Carry on reading,
1864 and it is assumed you know what you need.
1866 *PLEASE* read random(4) and random(9) if you are in the
1867 habit of tweaking kernel configs, and/or if you are a member
1868 of the embedded community, wanting specific and not-usual
1869 behaviour from your security subsystems.
1871 NOTE!! If you use RANDOM_DUMMY and/or have no 'device
1872 random', you will NOT have a functioning /dev/random, and
1873 many cryptographic features will not work, including SSH.
1874 You may also find strange behaviour from the random(3) set
1875 of library functions, in particular sranddev(3), srandomdev(3)
1876 and arc4random(3). The reason for this is that the KERN_ARND
1877 sysctl only returns entropy if it thinks it has some to
1878 share, and with RANDOM_DUMMY or no 'device random' this
1882 An additional fix for the issue described in the 20150614 sendmail
1883 entry below has been committed in revision 284717.
1886 FreeBSD's old make (fmake) has been removed from the system. It is
1887 available as the devel/fmake port or via pkg install fmake.
1890 The fix for the issue described in the 20150614 sendmail entry
1891 below has been committed in revision 284436. The work
1892 around described in that entry is no longer needed unless the
1893 default setting is overridden by a confDH_PARAMETERS configuration
1894 setting of '5' or pointing to a 512 bit DH parameter file.
1897 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from
1898 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf
1899 and devel/kyua to version 0.20+ and adjust any calling code to work
1900 with Kyuafile and kyua.
1903 The import of openssl to address the FreeBSD-SA-15:10.openssl
1904 security advisory includes a change which rejects handshakes
1905 with DH parameters below 768 bits. sendmail releases prior
1906 to 8.15.2 (not yet released), defaulted to a 512 bit
1907 DH parameter setting for client connections. To work around
1908 this interoperability, sendmail can be configured to use a
1909 2048 bit DH parameter by:
1911 1. Edit /etc/mail/`hostname`.mc
1912 2. If a setting for confDH_PARAMETERS does not exist or
1913 exists and is set to a string beginning with '5',
1914 replace it with '2'.
1915 3. If a setting for confDH_PARAMETERS exists and is set to
1916 a file path, create a new file with:
1917 openssl dhparam -out /path/to/file 2048
1918 4. Rebuild the .cf file:
1919 cd /etc/mail/; make; make install
1920 5. Restart sendmail:
1921 cd /etc/mail/; make restart
1923 A sendmail patch is coming, at which time this file will be
1927 Generation of legacy formatted entries have been disabled by default
1928 in pwd_mkdb(8), as all base system consumers of the legacy formatted
1929 entries were converted to use the new format by default when the new,
1930 machine independent format have been added and supported since FreeBSD
1933 Please see the pwd_mkdb(8) manual page for further details.
1936 Clang and llvm have been upgraded to 3.6.1 release. Please see the
1937 20141231 entry below for information about prerequisites and upgrading,
1938 if you are not already using 3.5.0 or higher.
1941 TI platform code switched to using vendor DTS files and this update
1942 may break existing systems running on Beaglebone, Beaglebone Black,
1945 - dtb files should be regenerated/reinstalled. Filenames are the
1946 same but content is different now
1947 - GPIO addressing was changed, now each GPIO bank (32 pins per bank)
1948 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old
1949 addressing scheme is now pin 25 on /dev/gpioc3.
1950 - Pandaboard: /etc/ttys should be updated, serial console device is
1951 now /dev/ttyu2, not /dev/ttyu0
1954 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim.
1955 If you need the GNU extension from groff soelim(1), install groff
1956 from package: pkg install groff, or via ports: textproc/groff.
1959 chmod, chflags, chown and chgrp now affect symlinks in -R mode as
1960 defined in symlink(7); previously symlinks were silently ignored.
1963 The const qualifier has been removed from iconv(3) to comply with
1964 POSIX. The ports tree is aware of this from r384038 onwards.
1967 Libraries specified by LIBADD in Makefiles must have a corresponding
1968 DPADD_<lib> variable to ensure correct dependencies. This is now
1969 enforced in src.libnames.mk.
1972 From legacy ata(4) driver was removed support for SATA controllers
1973 supported by more functional drivers ahci(4), siis(4) and mvs(4).
1974 Kernel modules ataahci and ataadaptec were removed completely,
1975 replaced by ahci and mvs modules respectively.
1978 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see
1979 the 20141231 entry below for information about prerequisites and
1980 upgrading, if you are not already using 3.5.0 or higher.
1983 The 32-bit PowerPC kernel has been changed to a position-independent
1984 executable. This can only be booted with a version of loader(8)
1985 newer than January 31, 2015, so make sure to update both world and
1986 kernel before rebooting.
1989 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014),
1990 but before r278950, the RNG was not seeded properly. Immediately
1991 upgrade the kernel to r278950 or later and regenerate any keys (e.g.
1992 ssh keys or openssl keys) that were generated w/ a kernel from that
1993 range. This does not affect programs that directly used /dev/random
1994 or /dev/urandom. All userland uses of arc4random(3) are affected.
1997 The autofs(4) ABI was changed in order to restore binary compatibility
1998 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work
1999 with the new kernel.
2002 The powerpc64 kernel has been changed to a position-independent
2003 executable. This can only be booted with a new version of loader(8),
2004 so make sure to update both world and kernel before rebooting.
2007 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix
2008 only release, no new features have been added. Please see the 20141231
2009 entry below for information about prerequisites and upgrading, if you
2010 are not already using 3.5.0.
2013 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now
2014 taken from the ELF Tool Chain project rather than GNU binutils. They
2015 should be drop-in replacements, with the addition of arm64 support.
2016 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the
2017 binutils tools, if necessary. See 20150805 for updated information.
2020 The default Unbound configuration now enables remote control
2021 using a local socket. Users who have already enabled the
2022 local_unbound service should regenerate their configuration
2023 by running "service local_unbound setup" as root.
2026 The GNU texinfo and GNU info pages have been removed.
2027 To be able to view GNU info pages please install texinfo from ports.
2030 Clang, llvm and lldb have been upgraded to 3.5.0 release.
2032 As of this release, a prerequisite for building clang, llvm and lldb is
2033 a C++11 capable compiler and C++11 standard library. This means that to
2034 be able to successfully build the cross-tools stage of buildworld, with
2035 clang as the bootstrap compiler, your system compiler or cross compiler
2036 should either be clang 3.3 or later, or gcc 4.8 or later, and your
2037 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or
2040 On any standard FreeBSD 10.x or 11.x installation, where clang and
2041 libc++ are on by default (that is, on x86 or arm), this should work out
2044 On 9.x installations where clang is enabled by default, e.g. on x86 and
2045 powerpc, libc++ will not be enabled by default, so libc++ should be
2046 built (with clang) and installed first. If both clang and libc++ are
2047 missing, build clang first, then use it to build libc++.
2049 On 8.x and earlier installations, upgrade to 9.x first, and then follow
2050 the instructions for 9.x above.
2052 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by
2053 default, and do not build clang.
2055 Many embedded systems are resource constrained, and will not be able to
2056 build clang in a reasonable time, or in some cases at all. In those
2057 cases, cross building bootable systems on amd64 is a workaround.
2059 This new version of clang introduces a number of new warnings, of which
2060 the following are most likely to appear:
2064 This warns in two cases, for both C and C++:
2065 * When the code is trying to take the absolute value of an unsigned
2066 quantity, which is effectively a no-op, and almost never what was
2067 intended. The code should be fixed, if at all possible. If you are
2068 sure that the unsigned quantity can be safely cast to signed, without
2069 loss of information or undefined behavior, you can add an explicit
2070 cast, or disable the warning.
2072 * When the code is trying to take an absolute value, but the called
2073 abs() variant is for the wrong type, which can lead to truncation.
2074 If you want to disable the warning instead of fixing the code, please
2075 make sure that truncation will not occur, or it might lead to unwanted
2078 -Wtautological-undefined-compare and
2079 -Wundefined-bool-conversion
2081 These warn when C++ code is trying to compare 'this' against NULL, while
2082 'this' should never be NULL in well-defined C++ code. However, there is
2083 some legacy (pre C++11) code out there, which actively abuses this
2084 feature, which was less strictly defined in previous C++ versions.
2086 Squid and openjdk do this, for example. The warning can be turned off
2087 for C++98 and earlier, but compiling the code in C++11 mode might result
2088 in unexpected behavior; for example, the parts of the program that are
2089 unreachable could be optimized away.
2092 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER)
2093 kernel sources have been removed. The .h files remain, since some
2094 utilities include them. This will need to be fixed later.
2095 If "mount -t oldnfs ..." is attempted, it will fail.
2096 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used,
2097 the utilities will report errors.
2100 The handling of LOCAL_LIB_DIRS has been altered to skip addition of
2101 directories to top level SUBDIR variable when their parent
2102 directory is included in LOCAL_DIRS. Users with build systems with
2103 such hierarchies and without SUBDIR entries in the parent
2104 directory Makefiles should add them or add the directories to
2108 faith(4) and faithd(8) have been removed from the base system. Faith
2109 has been obsolete for a very long time.
2112 vt(4), the new console driver, is enabled by default. It brings
2113 support for Unicode and double-width characters, as well as
2114 support for UEFI and integration with the KMS kernel video
2117 You may need to update your console settings in /etc/rc.conf,
2118 most probably the keymap. During boot, /etc/rc.d/syscons will
2119 indicate what you need to do.
2121 vt(4) still has issues and lacks some features compared to
2122 syscons(4). See the wiki for up-to-date information:
2123 https://wiki.freebsd.org/Newcons
2125 If you want to keep using syscons(4), you can do so by adding
2126 the following line to /boot/loader.conf:
2130 pjdfstest has been integrated into kyua as an opt-in test suite.
2131 Please see share/doc/pjdfstest/README for more details on how to
2135 gperf has been removed from the base system for architectures
2136 that use clang. Ports that require gperf will obtain it from the
2140 pjdfstest has been moved from tools/regression/pjdfstest to
2144 At svn r271982, The default linux compat kernel ABI has been adjusted
2145 to 2.6.18 in support of the linux-c6 compat ports infrastructure
2146 update. If you wish to continue using the linux-f10 compat ports,
2147 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are
2148 encouraged to update their linux-compat packages to linux-c6 during
2149 their next update cycle.
2152 The ofwfb driver, used to provide a graphics console on PowerPC when
2153 using vt(4), no longer allows mmap() of all physical memory. This
2154 will prevent Xorg on PowerPC with some ATI graphics cards from
2155 initializing properly unless x11-servers/xorg-server is updated to
2159 The xdev targets have been converted to using TARGET and
2160 TARGET_ARCH instead of XDEV and XDEV_ARCH.
2163 The default unbound configuration has been modified to address
2164 issues with reverse lookups on networks that use private
2165 address ranges. If you use the local_unbound service, run
2166 "service local_unbound setup" as root to regenerate your
2167 configuration, then "service local_unbound reload" to load the
2171 The GNU texinfo and GNU info pages are not built and installed
2172 anymore, WITH_INFO knob has been added to allow to built and install
2174 UPDATE: see 20150102 entry on texinfo's removal
2177 The GNU readline library is now an INTERNALLIB - that is, it is
2178 statically linked into consumers (GDB and variants) in the base
2179 system, and the shared library is no longer installed. The
2180 devel/readline port is available for third party software that
2184 The Itanium architecture (ia64) has been removed from the list of
2185 known architectures. This is the first step in the removal of the
2189 Commit r268115 has added NFSv4.1 server support, merged from
2190 projects/nfsv4.1-server. Since this includes changes to the
2191 internal interfaces between the NFS related modules, a full
2192 build of the kernel and modules will be necessary.
2193 __FreeBSD_version has been bumped.
2196 The WITHOUT_VT_SUPPORT kernel config knob has been renamed
2197 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning
2198 which differs from the behaviour controlled by this knob.)
2201 Maximal length of the serial number in CTL was increased from 16 to
2202 64 chars, that breaks ABI. All CTL-related tools, such as ctladm
2203 and ctld, need to be rebuilt to work with a new kernel.
2206 The libatf-c and libatf-c++ major versions were downgraded to 0 and
2207 1 respectively to match the upstream numbers. They were out of
2208 sync because, when they were originally added to FreeBSD, the
2209 upstream versions were not respected. These libraries are private
2210 and not yet built by default, so renumbering them should be a
2211 non-issue. However, unclean source trees will yield broken test
2212 programs once the operator executes "make delete-old-libs" after a
2213 "make installworld".
2215 Additionally, the atf-sh binary was made private by moving it into
2216 /usr/libexec/. Already-built shell test programs will keep the
2217 path to the old binary so they will break after "make delete-old"
2220 If you are using WITH_TESTS=yes (not the default), wipe the object
2221 tree and rebuild from scratch to prevent spurious test failures.
2222 This is only needed once: the misnumbered libraries and misplaced
2223 binaries have been added to OptionalObsoleteFiles.inc so they will
2224 be removed during a clean upgrade.
2227 Clang and llvm have been upgraded to 3.4.1 release.
2230 We bogusly installed src.opts.mk in /usr/share/mk. This file should
2231 be removed to avoid issues in the future (and has been added to
2235 /etc/src.conf now affects only builds of the FreeBSD src tree. In the
2236 past, it affected all builds that used the bsd.*.mk files. The old
2237 behavior was a bug, but people may have relied upon it. To get this
2238 behavior back, you can .include /etc/src.conf from /etc/make.conf
2239 (which is still global and isn't changed). This also changes the
2240 behavior of incremental builds inside the tree of individual
2241 directories. Set MAKESYSPATH to ".../share/mk" to do that.
2242 Although this has survived make universe and some upgrade scenarios,
2243 other upgrade scenarios may have broken. At least one form of
2244 temporary breakage was fixed with MAKESYSPATH settings for buildworld
2245 as well... In cases where MAKESYSPATH isn't working with this
2246 setting, you'll need to set it to the full path to your tree.
2248 One side effect of all this cleaning up is that bsd.compiler.mk
2249 is no longer implicitly included by bsd.own.mk. If you wish to
2250 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk
2254 The lindev device has been removed since /dev/full has been made a
2255 standard device. __FreeBSD_version has been bumped.
2258 The knob WITHOUT_VI was added to the base system, which controls
2259 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1)
2260 in order to reorder files share/termcap and didn't build ex(1) as a
2261 build tool, so building/installing with WITH_VI is highly advised for
2262 build hosts for older releases.
2264 This issue has been fixed in stable/9 and stable/10 in r277022 and
2265 r276991, respectively.
2268 The YES_HESIOD knob has been removed. It has been obsolete for
2269 a decade. Please move to using WITH_HESIOD instead or your builds
2270 will silently lack HESIOD.
2273 The uart(4) driver has been changed with respect to its handling
2274 of the low-level console. Previously the uart(4) driver prevented
2275 any process from changing the baudrate or the CLOCAL and HUPCL
2276 control flags. By removing the restrictions, operators can make
2277 changes to the serial console port without having to reboot.
2278 However, when getty(8) is started on the serial device that is
2279 associated with the low-level console, a misconfigured terminal
2280 line in /etc/ttys will now have a real impact.
2281 Before upgrading the kernel, make sure that /etc/ttys has the
2282 serial console device configured as 3wire without baudrate to
2283 preserve the previous behaviour. E.g:
2284 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure
2287 Support for libwrap (TCP wrappers) in rpcbind was disabled by default
2288 to improve performance. To re-enable it, if needed, run rpcbind
2289 with command line option -W.
2292 Switched back to the GPL dtc compiler due to updates in the upstream
2293 dts files not being supported by the BSDL dtc compiler. You will need
2294 to rebuild your kernel toolchain to pick up the new compiler. Core dumps
2295 may result while building dtb files during a kernel build if you fail
2296 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler.
2299 Clang and llvm have been upgraded to 3.4 release.
2302 The nve(4) driver has been removed. Please use the nfe(4) driver
2303 for NVIDIA nForce MCP Ethernet adapters instead.
2306 An ABI incompatibility crept into the libc++ 3.4 import in r261283.
2307 This could cause certain C++ applications using shared libraries built
2308 against the previous version of libc++ to crash. The incompatibility
2309 has now been fixed, but any C++ applications or shared libraries built
2310 between r261283 and r261801 should be recompiled.
2313 OpenSSH will now ignore errors caused by kernel lacking of Capsicum
2314 capability mode support. Please note that enabling the feature in
2315 kernel is still highly recommended.
2318 OpenSSH is now built with sandbox support, and will use sandbox as
2319 the default privilege separation method. This requires Capsicum
2320 capability mode support in kernel.
2323 The libelf and libdwarf libraries have been updated to newer
2324 versions from upstream. Shared library version numbers for
2325 these two libraries were bumped. Any ports or binaries
2326 requiring these two libraries should be recompiled.
2327 __FreeBSD_version is bumped to 1100006.
2330 If a Makefile in a tests/ directory was auto-generating a Kyuafile
2331 instead of providing an explicit one, this would prevent such
2332 Makefile from providing its own Kyuafile in the future during
2333 NO_CLEAN builds. This has been fixed in the Makefiles but manual
2334 intervention is needed to clean an objdir if you use NO_CLEAN:
2335 # find /usr/obj -name Kyuafile | xargs rm -f
2338 The behavior of gss_pseudo_random() for the krb5 mechanism
2339 has changed, for applications requesting a longer random string
2340 than produced by the underlying enctype's pseudo-random() function.
2341 In particular, the random string produced from a session key of
2342 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will
2343 be different at the 17th octet and later, after this change.
2344 The counter used in the PRF+ construction is now encoded as a
2345 big-endian integer in accordance with RFC 4402.
2346 __FreeBSD_version is bumped to 1100004.
2349 The WITHOUT_ATF build knob has been removed and its functionality
2350 has been subsumed into the more generic WITHOUT_TESTS. If you were
2351 using the former to disable the build of the ATF libraries, you
2352 should change your settings to use the latter.
2355 The default version of mtree is nmtree which is obtained from
2356 NetBSD. The output is generally the same, but may vary
2357 slightly. If you found you need identical output adding
2358 "-F freebsd9" to the command line should do the trick. For the
2359 time being, the old mtree is available as fmtree.
2362 libbsdyml has been renamed to libyaml and moved to /usr/lib/private.
2363 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg
2364 1.1.4_8 and verify bsdyml not linked in, before running "make
2366 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean
2368 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml
2371 The stable/10 branch has been created in subversion from head
2378 Sometimes, obscure build problems are the result of environment
2379 poisoning. This can happen because the make utility reads its
2380 environment when searching for values for global variables. To run
2381 your build attempts in an "environmental clean room", prefix all make
2382 commands with 'env -i '. See the env(1) manual page for more details.
2383 Occasionally a build failure will occur with "make -j" due to a race
2384 condition. If this happens try building again without -j, and please
2385 report a bug if it happens consistently.
2387 When upgrading from one major version to another it is generally best to
2388 upgrade to the latest code in the currently installed branch first, then
2389 do an upgrade to the new branch. This is the best-tested upgrade path,
2390 and has the highest probability of being successful. Please try this
2391 approach if you encounter problems with a major version upgrade. Since
2392 the stable 4.x branch point, one has generally been able to upgrade from
2393 anywhere in the most recent stable branch to head / current (or even the
2394 last couple of stable branches). See the top of this file when there's
2397 The update process will emit an error on an attempt to perform a build
2398 or install from a FreeBSD version below the earliest supported version.
2399 When updating from an older version the update should be performed one
2400 major release at a time, including running `make delete-old` at each
2403 When upgrading a live system, having a root shell around before
2404 installing anything can help undo problems. Not having a root shell
2405 around can lead to problems if pam has changed too much from your
2406 starting point to allow continued authentication after the upgrade.
2408 This file should be read as a log of events. When a later event changes
2409 information of a prior event, the prior event should not be deleted.
2410 Instead, a pointer to the entry with the new information should be
2411 placed in the old entry. Readers of this file should also sanity check
2412 older entries before relying on them blindly. Authors of new entries
2413 should write them with this in mind.
2417 When upgrading the boot ZFS pool to a new version, always follow
2420 1.) recompile and reinstall the ZFS boot loader and boot block
2421 (this is part of "make buildworld" and "make installworld")
2423 2.) update the ZFS boot block on your boot drive
2425 The following example updates the ZFS boot block on the
2426 freebsd-boot partition of a GPT partitioned drive ada0:
2427 "gpart bootcode -p /boot/gptzfsboot -i $N ada0"
2428 The value $N will typically be 1 (if booting from BIOS) or 2 (if
2431 Non-boot pools do not need these updates.
2435 If you are updating from a prior version of FreeBSD (even one just
2436 a few days old), you should follow this procedure. It is the most
2437 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
2439 make kernel-toolchain
2440 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
2441 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
2443 To test a kernel once
2444 ---------------------
2445 If you just want to boot a kernel once (because you are not sure
2446 if it works, or if you want to boot a known bad kernel to provide
2447 debugging information) run
2448 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
2449 nextboot -k testkernel
2451 To rebuild everything and install it on the current system.
2452 -----------------------------------------------------------
2453 # Note: sometimes if you are running current you gotta do more than
2454 # is listed here if you are upgrading from a really old current.
2456 <make sure you have good level 0 dumps>
2458 make buildkernel KERNCONF=YOUR_KERNEL_HERE
2459 make installkernel KERNCONF=YOUR_KERNEL_HERE
2461 <reboot in single user> [3]
2468 To cross-install current onto a separate partition
2469 --------------------------------------------------
2470 # In this approach we use a separate partition to hold
2471 # current's root, 'usr', and 'var' directories. A partition
2472 # holding "/", "/usr" and "/var" should be about 2GB in
2475 <make sure you have good level 0 dumps>
2478 make buildkernel KERNCONF=YOUR_KERNEL_HERE
2479 <maybe newfs current's root partition>
2480 <mount current's root partition on directory ${CURRENT_ROOT}>
2481 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC
2482 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
2483 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
2484 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
2485 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
2486 <reboot into current>
2487 <do a "native" rebuild/install as described in the previous section>
2488 <maybe install compatibility libraries from ports/misc/compat*>
2492 To upgrade in-place from stable to current
2493 ----------------------------------------------
2494 <make sure you have good level 0 dumps>
2496 make buildkernel KERNCONF=YOUR_KERNEL_HERE [8]
2497 make installkernel KERNCONF=YOUR_KERNEL_HERE
2499 <reboot in single user> [3]
2506 Make sure that you've read the UPDATING file to understand the
2507 tweaks to various things you need. At this point in the life
2508 cycle of current, things change often and you are on your own
2509 to cope. The defaults can also change, so please read ALL of
2510 the UPDATING entries.
2512 Also, if you are tracking -current, you must be subscribed to
2513 freebsd-current@freebsd.org. Make sure that before you update
2514 your sources that you have read and understood all the recent
2515 messages there. If in doubt, please track -stable which has
2516 much fewer pitfalls.
2518 [1] If you have third party modules, such as vmware, you should disable
2519 them at this point so they don't crash your system on
2520 reboot. Alternatively, you should rebuild all the modules you have in
2521 your system and install them as well. If you are running -current, you
2522 should seriously consider placing all sources to all the modules for
2523 your system (or symlinks to them) in /usr/local/sys/modules so this
2524 happens automatically. If all your modules come from ports, then adding
2525 the port origin directories to PORTS_MODULES instead is also automatic
2527 PORTS_MODULES+=x11/nvidia-driver
2529 [3] From the bootblocks, boot -s, and then do
2533 sh /etc/rc.d/zfs start # mount zfs filesystem, if needed
2534 cd src # full path to source
2535 adjkerntz -i # if CMOS is wall time
2536 Also, when doing a major release upgrade, it is required that you boot
2537 into single user mode to do the installworld.
2539 [4] Note: This step is non-optional. Failure to do this step
2540 can result in a significant reduction in the functionality of the
2541 system. Attempting to do it by hand is not recommended and those
2542 that pursue this avenue should read this file carefully, as well
2543 as the archives of freebsd-current and freebsd-hackers mailing lists
2544 for potential gotchas. The -U option is also useful to consider.
2545 See mergemaster(8) for more information.
2547 [5] Usually this step is a no-op. However, from time to time
2548 you may need to do this if you get unknown user in the following
2549 step. It never hurts to do it all the time. You may need to
2550 install a new mergemaster (cd src/usr.sbin/mergemaster && make
2551 install) after the buildworld before this step if you last updated
2552 from current before 20130425 or from -stable before 20130430.
2554 [6] This only deletes old files and directories. Old libraries
2555 can be deleted by "make delete-old-libs", but you have to make
2556 sure that no program is using those libraries anymore.
2558 [8] The new kernel must be able to run existing binaries used by an
2559 installworld. When upgrading across major versions, the new kernel's
2560 configuration must include the correct COMPAT_FREEBSD<n> option for
2561 existing binaries (e.g. COMPAT_FREEBSD11 to run 11.x binaries). Failure
2562 to do so may leave you with a system that is hard to boot to recover. A
2563 GENERIC kernel will include suitable compatibility options to run
2564 binaries from older branches. Note that the ability to run binaries
2565 from unsupported branches is not guaranteed.
2567 Make sure that you merge any new devices from GENERIC since the
2568 last time you updated your kernel config file. Options also
2569 change over time, so you may need to adjust your custom kernels
2572 [9] If CPUTYPE is defined in your /etc/make.conf, make sure to use the
2573 "?=" instead of the "=" assignment operator, so that buildworld can
2574 override the CPUTYPE if it needs to.
2576 MAKEOBJDIRPREFIX must be defined in an environment variable, and
2577 not on the command line, or in /etc/make.conf. buildworld will
2578 warn if it is improperly defined.
2581 This file contains a list, in reverse chronological order, of major
2582 breakages in tracking -current. It is not guaranteed to be a complete
2583 list of such breakages, and only contains entries since September 23, 2011.
2584 If you need to see UPDATING entries from before that date, you will need
2585 to fetch an UPDATING file from an older FreeBSD release.
2587 Copyright information:
2589 Copyright 1998-2009 M. Warner Losh <imp@FreeBSD.org>
2591 Redistribution, publication, translation and use, with or without
2592 modification, in full or in part, in any form or format of this
2593 document are permitted without further permission from the author.
2595 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
2596 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
2597 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
2598 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
2599 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
2600 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
2601 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2602 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
2603 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
2604 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
2605 POSSIBILITY OF SUCH DAMAGE.
2607 Contact Warner Losh if you have any questions about your use of
projects / FreeBSD / FreeBSD.git / blob