1 Updating Information for FreeBSD current 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.
14 NOTE: FreeBSD has switched from gcc to clang. If you have trouble bootstrapping
15 from older versions of FreeBSD, try WITHOUT_CLANG and WITH_GCC to bootstrap to
16 the tip of head, and then rebuild without this option. The bootstrap process
17 from older version of current across the gcc/clang cutover is a bit fragile.
19 20200805 p12 FreeBSD-SA-20:21.usb_net
20 FreeBSD-SA-20:22.unbound
23 Fix memory corruption in USB network device drivers. [SA-20:21.usb_net]
25 Fix multiple vulnerabilities in sqlite3. [SA-20:22.sqlite]
27 Fix sendmsg(2) privilege escalation. [SA-20:23.sendmsg]
29 20200708 p11 FreeBSD-EN-20:14.linuxkpi
31 FreeBSD-SA-20:19.unbound
34 Fix kernel panic in LinuxKPI subsystem. [EN-20:14.linuxpki]
36 Fix kernel panic in mps(4) driver. [EN-20:15.mps]
38 Fix multiple vulnerabilities in unbound. [SA-20:19.unbound]
40 Fix IPv6 socket option race condition and use after free. [SA-20:20.ipv6]
42 20200609 p10 FreeBSD-SA-20:17.usb
44 Fix USB HID descriptor parsing error. [SA-20:17.usb]
46 20200512 p9 FreeBSD-EN-20:08.tzdata
47 FreeBSD-EN-20:10.build
48 FreeBSD-SA-20:12.libalias
49 FreeBSD-SA-20:13.libalias
51 FreeBSD-SA-20:15.cryptodev
53 Import tzdata 2020a. [EN-20:08.tzdata]
55 Fix incorrect build host Clang version detection [EN-20:10.build]
57 Fix insufficient packet length validation in libalias [SA-20:12.libalias]
59 Fix memory disclosure vulnerability in libalias [SA-20:13.libalias]
61 Fix improper checking in SCTP-AUTH shared key update [SA-20:14.sctp]
63 Fix use after free in cryptodev module [SA-20:15.cryptodev]
65 20200421 p8 FreeBSD-EN-20:07.quotad
68 Fix regression in rpc.rquotad with certain NFS servers [EN-20:07.quotad]
70 Fix ipfw invalid mbuf handling [SA-20:10.ipfw]
72 20200319 p7 FreeBSD-EN-20:04.pfctl
75 FreeBSD-SA-20:05.if_oce_ioctl
76 FreeBSD-SA-20:07.epair
80 Fix missing pfctl(8) tunable [EN-20:04.pfctl]
82 Fix incorrect checksum calculations with IPv6 extension headers [EN-20:06.ipv6]
84 Fix TCP IPv6 SYN cache kernel information disclosure [SA-20:04.tcp]
86 Fix insufficient oce(4) ioctl(2) privilege checking [SA-20:05.if_oce_ioctl]
88 Fix incorrect user-controlled pointer use in epair [SA-20:07.epair]
90 Fix kernel memory disclosure with nested jails [SA-20:08.jail]
92 Fix multiple denial of service in ntpd [SA-20:09.ntp]
94 20200128 p6 FreeBSD-EN-20:01.ssp
95 FreeBSD-EN-20:02.nmount
96 FreeBSD-SA-20:01.libfetch
97 FreeBSD-SA-20:03.thrmisc
99 Fix imprecise ordering of SSP canary initialization [EN-20:01.ssp]
101 Fix nmount invalid pointer dereference [EN-20:02.nmount]
103 Fix libfetch buffer overflow [SA-20:01.libfetch]
105 Fix kernel stack data disclosure [SA-20:03.thrmisc]
107 20191112 p5 FreeBSD-SA-19:25.mcepsc
109 Fix Machine Check Exception on Page Size Change [SA-19:25.mcepsc]
111 20191023 p4 FreeBSD-EN-19:18.tzdata
113 Import tzdata 2019c. [EN-19:18.tzdata]
115 20190820 p3 FreeBSD-EN-19:16.bhyve
116 FreeBSD-EN-19:17.ipfw
117 FreeBSD-SA-19:22.mbuf
118 FreeBSD-SA-19:23.midi
119 FreeBSD-SA-19:24.mqueuefs
121 Bhyve instruction emulation improvements (opcode 03H and F7H).
124 Fix ipfw(8) jail keyword prior to jail startup. [EN-19:17.ipfw]
126 Fix IPv6 remote denial of service. [SA-19:22.mbuf]
128 Fix kernel memory disclosure from /dev/midistat. [SA-19:23.midi]
130 Fix reference count overflow in mqueuefs. [SA-19:24.mqueuefs]
132 20190806 p2 FreeBSD-SA-19:18.bzip2
133 FreeBSD-SA-19:19.mldv2
134 FreeBSD-SA-19:20.bsnmp
135 FreeBSD-SA-19:21.bhyve
137 Fix multiple vulnerabilities in bzip2. [SA-19:18.bzip2]
139 Fix ICMPv6 / MLDv2 out-of-bounds memory access. [SA-19:19.mldv2]
141 Fix insufficient message length validation in bsnmp library.
144 Fix insufficient validation of guest-supplied data (e1000 device).
147 20190724 p1 FreeBSD-EN-19:13.mds
148 FreeBSD-SA-19:12.telnet
150 FreeBSD-SA-19:14.freebsd32
151 FreeBSD-SA-19:15.mqueuefs
152 FreeBSD-SA-19:16.bhyve
155 Fix panic from Intel CPU vulnerability mitigation. [EN-19:13.mds]
157 Fix multiple telnet client vulnerabilities. [SA-19:12.telnet]
159 Fix pts write-after-free. [SA-19:13.pts]
161 Fix kernel memory disclosure in freebsd32_ioctl. [SA-19:14.freebsd32]
163 Fix reference count overflow in mqueuefs. [SA-19:15.mqueuefs]
165 Fix byhve out-of-bounds read in XHCI device. [SA-19:16.bhyve]
167 Fix file descriptor reference count leak. [SA-19:17.fd]
172 20190702 FreeBSD-EN-19:12.tzdata
173 FreeBSD-SA-19:09.iconv
174 FreeBSD-SA-19:11.cd_ioctl
176 Import tzdata 2019b. [EN-19:12.tzdata]
178 Fix iconv buffer overflow. [SA-19:09.iconv]
180 Fix privilege escalation in cd(4) driver. [SA-19:11.cd_ioctl]
183 CARP now sets DSCP value CS7(Network Traffic) in the flowlabel field
184 of packets by default instead of only setting TOS_LOWDELAY in IPv4,
185 which was deprecated in 1998. Original behavior can be restored by
186 setting sysctl net.inet.carp.dscp=4.
189 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
190 8.0.0. Please see the 20141231 entry below for information about
191 prerequisites and upgrading, if you are not already using clang 3.5.0
195 geom_uzip(4) depends on the new module xz. If geom_uzip is statically
196 compiled into your custom kernel, add 'device xz' statement to the
200 Co-existance for Forth and Lua interpreters in bootloaders has now been
201 merged to ease testing of lualoader. LOADER_DEFAULT_INTERP, documented
202 in build(7), may be used to control which interpreter flavor is used in
203 the default loader to be installed. For systems where Lua and Forth
204 coexist, this switch can also be made on a running system by creating a
205 link from /boot/loader{,.efi} to /boot/loader_${flavor}{,.efi} rather
206 than requiring a rebuild.
208 The default flavor in this branch will remain Forth. As indicated in
209 the 20190216 UPDATING entry, booting is a complex environment; it would
210 be prudent to assume that lualoader may not work for your setup and make
211 provisions for backup boot methods.
214 zfsloader's functionality has now been folded into loader.
215 zfsloader is no longer necesasary once you've updated your
216 boot blocks. For a transition period, we will install a
217 hardlink for zfsloader to loader to allow a smooth transition
218 until the boot blocks can be updated (hard link because old
219 zfs boot blocks don't understand symlinks).
222 Lualoader has been merged to facilitate testing on this branch. It's
223 purely opt-in for now by building WITH_LOADER_LUA and WITHOUT_FORTH in
224 /etc/src.conf, but co-existance will come shortly. Booting is a complex
225 environment and test coverage for Lua-enabled loaders has been thin, so
226 it would be prudent to assume it might not work and make provisions for
230 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
231 7.0.1. Please see the 20141231 entry below for information about
232 prerequisites and upgrading, if you are not already using clang 3.5.0
236 r342562 modifies the NFSv4 server so that it obeys vfs.nfsd.nfs_privport
237 in the same as it is applied to NFSv2 and 3. This implies that NFSv4
238 servers that have vfs.nfsd.nfs_privport set will only allow mounts
239 from clients using a reserved port#. Since both the FreeBSD and Linux
240 NFSv4 clients use reserved port#s by default, this should not affect
244 The '%I' format in the kern.corefile sysctl limits the number of
245 core files that a process can generate to the number stored in the
246 debug.ncores sysctl. The '%I' format is replaced by the single digit
247 index. Previously, if all indexes were taken the kernel would overwrite
248 only a core file with the highest index in a filename.
249 Currently the system will create a new core file if there is a free
250 index or if all slots are taken it will overwrite the oldest one.
253 WITH_OFED option now only enables the build for the OFED libraries
254 and some fundamental client utilities. OpenSM and rest of the
255 debugging tools are enabled by WITH_OFED_EXTRA build switch.
256 WITH_OFED is turned on by default on amd64.
259 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
260 6.0.1. Please see the 20141231 entry below for information about
261 prerequisites and upgrading, if you are not already using clang 3.5.0
265 The releng/11.2 branch has been created from stable/11@r334458.
268 The tz database (tzdb) has been updated to 2018e. This version more
269 correctly models time stamps in time zones with negative DST such as
270 Europe/Dublin (from 1971 on), Europe/Prague (1946/7), and
271 Africa/Windhoek (1994/2017). This does not affect the UT offsets, only
272 time zone abbreviations and the tm_isdst flag.
275 The use of RSS hash from the network card aka flowid has been
276 disabled by default for lagg(4) as it's currently incompatible with
277 the lacp and loadbalance protocols.
279 This can be re-enabled by setting the following in loader.conf:
280 net.link.lagg.default_use_flowid="1"
283 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
284 6.0.0. Please see the 20141231 entry below for information about
285 prerequisites and upgrading, if you are not already using clang 3.5.0
289 The LOADER_FIREWIRE_SUPPORT build variable as been renamed to
290 WITH/OUT_LOADER_FIREWIRE. LOADER_{NO_,}GELI_SUPPORT has been renamed
291 to WITH/OUT_LOADER_GELI.
294 The geli password typed at boot is now hidden. To restore the previous
295 behavior, see geli(8) for configuration options.
297 The SW_WATCHDOG option is no longer necessary to enable the
298 hardclock-based software watchdog if no hardware watchdog is
299 configured. As before, SW_WATCHDOG will cause the software
300 watchdog to be enabled even if a hardware watchdog is configured.
303 lint(1) binaries and library are no longer built by default. To
304 enable building them, define WITH_LINT in src.conf. If you are using
305 a FreeBSD 12 or later system to build 11-stable, you may need to
306 install a lint(1) binary to use WITH_LINT.
309 When building multiple kernels using KERNCONF, non-existent KERNCONF
310 files will produce an error and buildkernel will fail. Previously
311 missing KERNCONF files silently failed giving no indication as to
312 why, only to subsequently discover during installkernel that the
313 desired kernel was never built in the first place.
316 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 5.0.0.
317 Please see the 20141231 entry below for information about prerequisites
318 and upgrading, if you are not already using clang 3.5.0 or higher.
321 Since the switch to GPT disk labels, fsck for UFS/FFS has been
322 unable to automatically find alternate superblocks. As of r322806,
323 the information needed to find alternate superblocks has been
324 moved to the end of the area reserved for the boot block.
325 Filesystems created with a newfs of this vintage or later
326 will create the recovery information. If you have a filesystem
327 created prior to this change and wish to have a recovery block
328 created for your filesystem, you can do so by running fsck in
329 forground mode (i.e., do not use the -p or -y options). As it
330 starts, fsck will ask ``SAVE DATA TO FIND ALTERNATE SUPERBLOCKS''
331 to which you should answer yes.
334 The releng/11.1 branch has been created from stable/11@r320475.
337 arm64 builds now use the base system LLD 4.0.0 linker by default,
338 instead of requiring that the aarch64-binutils port or package be
339 installed. To continue using aarch64-binutils, set
340 CROSS_BINUTILS_PREFIX=/usr/local/aarch64-freebsd/bin .
343 The ctl.ko module no longer implements the iSCSI target frontend:
344 cfiscsi.ko does instead.
346 If building cfiscsi.ko as a kernel module, the module can be loaded
347 via one of the following methods:
348 - `cfiscsi_load="YES"` in loader.conf(5).
349 - Add `cfiscsi` to `$kld_list` in rc.conf(5).
350 - ctladm(8)/ctld(8), when compiled with iSCSI support
351 (`WITH_ISCSI=yes` in src.conf(5))
353 Please see cfiscsi(4) for more details.
356 The mmcsd.ko module now additionally depends on geom_flashmap.ko.
357 Also, mmc.ko and mmcsd.ko need to be a matching pair built from the
358 same source (previously, the dependency of mmcsd.ko on mmc.ko was
359 missing, but mmcsd.ko now will refuse to load if it is incompatible
363 Binds and sends to the loopback addresses, IPv6 and IPv4, will now
364 use any explicitly assigned loopback address available in the jail
365 instead of using the first assigned address of the jail.
368 As of r316810 for ipfilter, keep frags is no longer assumed when
369 keep state is specified in a rule. r316810 aligns ipfilter with
370 documentation in man pages separating keep frags from keep state.
371 This allows keep state to specified without forcing keep frags
372 and allows keep frags to be specified independently of keep state.
373 To maintain previous behaviour, also specify keep frags with
374 keep state (as documented in ipf.conf.5).
377 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 4.0.0.
378 Please see the 20141231 entry below for information about prerequisites
379 and upgrading, if you are not already using clang 3.5.0 or higher.
382 The code that provides support for ZFS .zfs/ directory functionality
383 has been reimplemented. It's not possible now to create a snapshot
384 by mkdir under .zfs/snapshot/. That should be the only user visible
388 Many changes in the IPsec code have been merged from the FreeBSD-CURRENT
389 branch. The IPSEC_FILTERTUNNEL kernel option is removed in favour of
390 corresponding sysctl. The IPSEC_NAT_T kernel option is also removed,
391 and now NAT-T is supported by default. Security associations now use
392 the single namespace for SPI allocation, so if you use several manually
393 configured security associations with the same SPI, this configuration
397 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.1.
398 Please see the 20141231 entry below for information about prerequisites
399 and upgrading, if you are not already using clang 3.5.0 or higher.
402 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.0.
403 Please see the 20141231 entry below for information about prerequisites
404 and upgrading, if you are not already using clang 3.5.0 or higher.
407 The layout of the pmap structure has changed for powerpc to put the pmap
408 statistics at the front for all CPU variations. libkvm(3) and all tools
409 that link against it need to be recompiled.
412 isl(4) and cyapa(4) drivers now require a new driver,
413 chromebook_platform(4), to work properly on Chromebook-class hardware.
414 On other types of hardware the drivers may need to be configured using
415 device hints. Please see the corresponding manual pages for details.
418 Relocatable object files with the extension of .So have been renamed
419 to use an extension of .pico instead. The purpose of this change is
420 to avoid a name clash with shared libraries on case-insensitive file
421 systems. On those file systems, foo.So is the same file as foo.so.
424 The releng/11.0 branch has been created from stable/11@r303970.
427 The stable/11 branch has been created from head@r302406.
430 The libc stub for the pipe(2) system call has been replaced with
431 a wrapper that calls the pipe2(2) system call and the pipe(2)
432 system call is now only implemented by the kernels that include
433 "options COMPAT_FREEBSD10" in their config file (this is the
434 default). Users should ensure that this option is enabled in
435 their kernel or upgrade userspace to r302092 before upgrading their
439 CAM will now strip leading spaces from SCSI disks' serial numbers.
440 This will effect users who create UFS filesystems on SCSI disks using
441 those disk's diskid device nodes. For example, if /etc/fstab
442 previously contained a line like
443 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should
444 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom
445 transforms like gmirror may also be affected. ZFS users should
449 The bitstring(3) API has been updated with new functionality and
450 improved performance. But it is binary-incompatible with the old API.
451 Objects built with the new headers may not be linked against objects
452 built with the old headers.
455 The brk and sbrk functions have been removed from libc on arm64.
456 Binutils from ports has been updated to not link to these
457 functions and should be updated to the latest version before
458 installing a new libc.
461 The armv6 port now defaults to hard float ABI. Limited support
462 for running both hardfloat and soft float on the same system
463 is available using the libraries installed with -DWITH_LIBSOFT.
464 This has only been tested as an upgrade path for installworld
465 and packages may fail or need manual intervention to run. New
466 packages will be needed.
468 To update an existing self-hosted armv6hf system, you must add
469 TARGET_ARCH=armv6 on the make command line for both the build
470 and the install steps.
473 Kernel modules compiled outside of a kernel build now default to
474 installing to /boot/modules instead of /boot/kernel. Many kernel
475 modules built this way (such as those in ports) already overrode
476 KMODDIR explicitly to install into /boot/modules. However,
477 manually building and installing a module from /sys/modules will
478 now install to /boot/modules instead of /boot/kernel.
481 The CAM I/O scheduler has been committed to the kernel. There should be
482 no user visible impact. This does enable NCQ Trim on ada SSDs. While the
483 list of known rogues that claim support for this but actually corrupt
484 data is believed to be complete, be on the lookout for data
485 corruption. The known rogue list is believed to be complete:
487 o Crucial MX100, M550 drives with MU01 firmware.
488 o Micron M510 and M550 drives with MU01 firmware.
489 o Micron M500 prior to MU07 firmware
490 o Samsung 830, 840, and 850 all firmwares
491 o FCCT M500 all firmwares
493 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware
494 with working NCQ TRIM. For Micron branded drives, see your sales rep for
495 updated firmware. Black listed drives will work correctly because these
496 drives work correctly so long as no NCQ TRIMs are sent to them. Given
497 this list is the same as found in Linux, it's believed there are no
498 other rogues in the market place. All other models from the above
501 To be safe, if you are at all concerned, you can quirk each of your
502 drives to prevent NCQ from being sent by setting:
503 kern.cam.ada.X.quirks="0x2"
504 in loader.conf. If the drive requires the 4k sector quirk, set the
508 The FAST_DEPEND build option has been removed and its functionality is
509 now the one true way. The old mkdep(1) style of 'make depend' has
510 been removed. See 20160311 for further details.
513 Resource range types have grown from unsigned long to uintmax_t. All
514 drivers, and anything using libdevinfo, need to be recompiled.
517 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree
518 builds. It no longer runs mkdep(1) during 'make depend', and the
519 'make depend' stage can safely be skipped now as it is auto ran
520 when building 'make all' and will generate all SRCS and DPSRCS before
521 building anything else. Dependencies are gathered at compile time with
522 -MF flags kept in separate .depend files per object file. Users should
523 run 'make cleandepend' once if using -DNO_CLEAN to clean out older
527 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into
528 kernel modules. Therefore, if you load any kernel modules at boot time,
529 please install the boot loaders after you install the kernel, but before
533 make kernel KERNCONF=YOUR_KERNEL_HERE
534 make -C sys/boot install
535 <reboot in single user>
537 Then follow the usual steps, described in the General Notes section,
541 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please
542 see the 20141231 entry below for information about prerequisites and
543 upgrading, if you are not already using clang 3.5.0 or higher.
546 The AIO subsystem is now a standard part of the kernel. The
547 VFS_AIO kernel option and aio.ko kernel module have been removed.
548 Due to stability concerns, asynchronous I/O requests are only
549 permitted on sockets and raw disks by default. To enable
550 asynchronous I/O requests on all file types, set the
551 vfs.aio.enable_unsafe sysctl to a non-zero value.
554 The ELF object manipulation tool objcopy is now provided by the
555 ELF Tool Chain project rather than by GNU binutils. It should be a
556 drop-in replacement, with the addition of arm64 support. The
557 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set
558 to obtain the GNU version if necessary.
561 Building ZFS pools on top of zvols is prohibited by default. That
562 feature has never worked safely; it's always been prone to deadlocks.
563 Using a zvol as the backing store for a VM guest's virtual disk will
564 still work, even if the guest is using ZFS. Legacy behavior can be
565 restored by setting vfs.zfs.vol.recursive=1.
568 The NONE and HPN patches has been removed from OpenSSH. They are
569 still available in the security/openssh-portable port.
572 With the addition of ypldap(8), a new _ypldap user is now required
573 during installworld. "mergemaster -p" can be used to add the user
574 prior to installworld, as documented in the handbook.
577 The tftp loader (pxeboot) now uses the option root-path directive. As a
578 consequence it no longer looks for a pxeboot.4th file on the tftp
579 server. Instead it uses the regular /boot infrastructure as with the
583 The code to start recording plug and play data into the modules has
584 been committed. While the old tools will properly build a new kernel,
585 a number of warnings about "unknown metadata record 4" will be produced
586 for an older kldxref. To avoid such warnings, make sure to rebuild
587 the kernel toolchain (or world). Make sure that you have r292078 or
588 later when trying to build 292077 or later before rebuilding.
591 Debug data files are now built by default with 'make buildworld' and
592 installed with 'make installworld'. This facilitates debugging but
593 requires more disk space both during the build and for the installed
594 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes
598 r291527 changed the internal interface between the nfsd.ko and
599 nfscommon.ko modules. As such, they must both be upgraded to-gether.
600 __FreeBSD_version has been bumped because of this.
603 Add support for unicode collation strings leads to a change of
604 order of files listed by ls(1) for example. To get back to the old
605 behaviour, set LC_COLLATE environment variable to "C".
607 Databases administrators will need to reindex their databases given
608 collation results will be different.
610 Due to a bug in install(1) it is recommended to remove the ancient
611 locales before running make installworld.
613 rm -rf /usr/share/locale/*
616 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring
617 libcrypto.so.7 or libssl.so.7 must be recompiled.
620 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0.
621 Kernel modules isp_2400_multi and isp_2500_multi were removed and
622 should be replaced with isp_2400 and isp_2500 modules respectively.
625 The build previously allowed using 'make -n' to not recurse into
626 sub-directories while showing what commands would be executed, and
627 'make -n -n' to recursively show commands. Now 'make -n' will recurse
628 and 'make -N' will not.
631 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster
632 and etcupdate will now use this file. A custom sendmail.cf is now
633 updated via this mechanism rather than via installworld. If you had
634 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may
635 want to remove the exclusion or change it to "always install".
636 /etc/mail/sendmail.cf is now managed the same way regardless of
637 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using
638 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior.
641 Compatibility shims for legacy ATA device names have been removed.
642 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases
643 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.*
644 environment variables, /dev/ad* and /dev/ar* symbolic links.
647 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0.
648 Please see the 20141231 entry below for information about prerequisites
649 and upgrading, if you are not already using clang 3.5.0 or higher.
652 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/,
653 and renamed from .symbols to .debug. This reduces the size requirements
654 on the boot partition or file system and provides consistency with
655 userland debug files.
657 When using the supported kernel installation method the
658 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old)
659 as is done with /boot/kernel.
661 Developers wishing to maintain the historical behavior of installing
662 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5).
665 The wireless drivers had undergone changes that remove the 'parent
666 interface' from the ifconfig -l output. The rc.d network scripts
667 used to check presence of a parent interface in the list, so old
668 scripts would fail to start wireless networking. Thus, etcupdate(3)
669 or mergemaster(8) run is required after kernel update, to update your
670 rc.d scripts in /etc.
673 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl'
674 These configurations are now automatically interpreted as
675 'scrub fragment reassemble'.
678 Kernel-loadable modules for the random(4) device are back. To use
679 them, the kernel must have
682 options RANDOM_LOADABLE
684 kldload(8) can then be used to load random_fortuna.ko
685 or random_yarrow.ko. Please note that due to the indirect
686 function calls that the loadable modules need to provide,
687 the build-in variants will be slightly more efficient.
689 The random(4) kernel option RANDOM_DUMMY has been retired due to
690 unpopularity. It was not all that useful anyway.
693 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired.
694 Control over building the ELF Tool Chain tools is now provided by
695 the WITHOUT_TOOLCHAIN knob.
698 The polarity of Pulse Per Second (PPS) capture events with the
699 uart(4) driver has been corrected. Prior to this change the PPS
700 "assert" event corresponded to the trailing edge of a positive PPS
701 pulse and the "clear" event was the leading edge of the next pulse.
703 As the width of a PPS pulse in a typical GPS receiver is on the
704 order of 1 millisecond, most users will not notice any significant
705 difference with this change.
707 Anyone who has compensated for the historical polarity reversal by
708 configuring a negative offset equal to the pulse width will need to
709 remove that workaround.
712 The default group assigned to /dev/dri entries has been changed
713 from 'wheel' to 'video' with the id of '44'. If you want to have
714 access to the dri devices please add yourself to the video group
717 # pw groupmod video -m $USER
720 The menu.rc and loader.rc files will now be replaced during
721 upgrades. Please migrate local changes to menu.rc.local and
722 loader.rc.local instead.
725 GNU Binutils versions of addr2line, c++filt, nm, readelf, size,
726 strings and strip have been removed. The src.conf(5) knob
727 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools.
730 As ZFS requires more kernel stack pages than is the default on some
731 architectures e.g. i386, it now warns if KSTACK_PAGES is less than
732 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing).
734 Please consider using 'options KSTACK_PAGES=X' where X is greater
735 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations.
738 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0
739 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by
740 default, i.e., they will not contain "::". For example, instead
741 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet
742 to have a more specific match, such as different map entries for
743 IPv6:0:0 vs IPv6:0. This change requires that configuration
744 data (including maps, files, classes, custom ruleset, etc.) must
745 use the same format, so make certain such configuration data is
746 upgrading. As a very simple check search for patterns like
747 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old
748 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or
749 the cf option UseCompressedIPv6Addresses.
752 The default kernel entropy-processing algorithm is now
753 Fortuna, replacing Yarrow.
755 Assuming you have 'device random' in your kernel config
756 file, the configurations allow a kernel option to override
757 this default. You may choose *ONE* of:
759 options RANDOM_YARROW # Legacy /dev/random algorithm.
760 options RANDOM_DUMMY # Blocking-only driver.
762 If you have neither, you get Fortuna. For most people,
763 read no further, Fortuna will give a /dev/random that works
764 like it always used to, and the difference will be irrelevant.
766 If you remove 'device random', you get *NO* kernel-processed
767 entropy at all. This may be acceptable to folks building
768 embedded systems, but has complications. Carry on reading,
769 and it is assumed you know what you need.
771 *PLEASE* read random(4) and random(9) if you are in the
772 habit of tweaking kernel configs, and/or if you are a member
773 of the embedded community, wanting specific and not-usual
774 behaviour from your security subsystems.
776 NOTE!! If you use RANDOM_DUMMY and/or have no 'device
777 random', you will NOT have a functioning /dev/random, and
778 many cryptographic features will not work, including SSH.
779 You may also find strange behaviour from the random(3) set
780 of library functions, in particular sranddev(3), srandomdev(3)
781 and arc4random(3). The reason for this is that the KERN_ARND
782 sysctl only returns entropy if it thinks it has some to
783 share, and with RANDOM_DUMMY or no 'device random' this
787 An additional fix for the issue described in the 20150614 sendmail
788 entry below has been been committed in revision 284717.
791 FreeBSD's old make (fmake) has been removed from the system. It is
792 available as the devel/fmake port or via pkg install fmake.
795 The fix for the issue described in the 20150614 sendmail entry
796 below has been been committed in revision 284436. The work
797 around described in that entry is no longer needed unless the
798 default setting is overridden by a confDH_PARAMETERS configuration
799 setting of '5' or pointing to a 512 bit DH parameter file.
802 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from
803 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf
804 and devel/kyua to version 0.20+ and adjust any calling code to work
805 with Kyuafile and kyua.
808 The import of openssl to address the FreeBSD-SA-15:10.openssl
809 security advisory includes a change which rejects handshakes
810 with DH parameters below 768 bits. sendmail releases prior
811 to 8.15.2 (not yet released), defaulted to a 512 bit
812 DH parameter setting for client connections. To work around
813 this interoperability, sendmail can be configured to use a
814 2048 bit DH parameter by:
816 1. Edit /etc/mail/`hostname`.mc
817 2. If a setting for confDH_PARAMETERS does not exist or
818 exists and is set to a string beginning with '5',
820 3. If a setting for confDH_PARAMETERS exists and is set to
821 a file path, create a new file with:
822 openssl dhparam -out /path/to/file 2048
823 4. Rebuild the .cf file:
824 cd /etc/mail/; make; make install
826 cd /etc/mail/; make restart
828 A sendmail patch is coming, at which time this file will be
832 Generation of legacy formatted entries have been disabled by default
833 in pwd_mkdb(8), as all base system consumers of the legacy formatted
834 entries were converted to use the new format by default when the new,
835 machine independent format have been added and supported since FreeBSD
838 Please see the pwd_mkdb(8) manual page for further details.
841 Clang and llvm have been upgraded to 3.6.1 release. Please see the
842 20141231 entry below for information about prerequisites and upgrading,
843 if you are not already using 3.5.0 or higher.
846 TI platform code switched to using vendor DTS files and this update
847 may break existing systems running on Beaglebone, Beaglebone Black,
850 - dtb files should be regenerated/reinstalled. Filenames are the
851 same but content is different now
852 - GPIO addressing was changed, now each GPIO bank (32 pins per bank)
853 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old
854 addressing scheme is now pin 25 on /dev/gpioc3.
855 - Pandaboard: /etc/ttys should be updated, serial console device is
856 now /dev/ttyu2, not /dev/ttyu0
859 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim.
860 If you need the GNU extension from groff soelim(1), install groff
861 from package: pkg install groff, or via ports: textproc/groff.
864 chmod, chflags, chown and chgrp now affect symlinks in -R mode as
865 defined in symlink(7); previously symlinks were silently ignored.
868 The const qualifier has been removed from iconv(3) to comply with
869 POSIX. The ports tree is aware of this from r384038 onwards.
872 Libraries specified by LIBADD in Makefiles must have a corresponding
873 DPADD_<lib> variable to ensure correct dependencies. This is now
874 enforced in src.libnames.mk.
877 From legacy ata(4) driver was removed support for SATA controllers
878 supported by more functional drivers ahci(4), siis(4) and mvs(4).
879 Kernel modules ataahci and ataadaptec were removed completely,
880 replaced by ahci and mvs modules respectively.
883 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see
884 the 20141231 entry below for information about prerequisites and
885 upgrading, if you are not already using 3.5.0 or higher.
888 The 32-bit PowerPC kernel has been changed to a position-independent
889 executable. This can only be booted with a version of loader(8)
890 newer than January 31, 2015, so make sure to update both world and
891 kernel before rebooting.
894 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014),
895 but before r278950, the RNG was not seeded properly. Immediately
896 upgrade the kernel to r278950 or later and regenerate any keys (e.g.
897 ssh keys or openssl keys) that were generated w/ a kernel from that
898 range. This does not affect programs that directly used /dev/random
899 or /dev/urandom. All userland uses of arc4random(3) are affected.
902 The autofs(4) ABI was changed in order to restore binary compatibility
903 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work
907 The powerpc64 kernel has been changed to a position-independent
908 executable. This can only be booted with a new version of loader(8),
909 so make sure to update both world and kernel before rebooting.
912 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix
913 only release, no new features have been added. Please see the 20141231
914 entry below for information about prerequisites and upgrading, if you
915 are not already using 3.5.0.
918 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now
919 taken from the ELF Tool Chain project rather than GNU binutils. They
920 should be drop-in replacements, with the addition of arm64 support.
921 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the
922 binutils tools, if necessary. See 20150805 for updated information.
925 The default Unbound configuration now enables remote control
926 using a local socket. Users who have already enabled the
927 local_unbound service should regenerate their configuration
928 by running "service local_unbound setup" as root.
931 The GNU texinfo and GNU info pages have been removed.
932 To be able to view GNU info pages please install texinfo from ports.
935 Clang, llvm and lldb have been upgraded to 3.5.0 release.
937 As of this release, a prerequisite for building clang, llvm and lldb is
938 a C++11 capable compiler and C++11 standard library. This means that to
939 be able to successfully build the cross-tools stage of buildworld, with
940 clang as the bootstrap compiler, your system compiler or cross compiler
941 should either be clang 3.3 or later, or gcc 4.8 or later, and your
942 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or
945 On any standard FreeBSD 10.x or 11.x installation, where clang and
946 libc++ are on by default (that is, on x86 or arm), this should work out
949 On 9.x installations where clang is enabled by default, e.g. on x86 and
950 powerpc, libc++ will not be enabled by default, so libc++ should be
951 built (with clang) and installed first. If both clang and libc++ are
952 missing, build clang first, then use it to build libc++.
954 On 8.x and earlier installations, upgrade to 9.x first, and then follow
955 the instructions for 9.x above.
957 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by
958 default, and do not build clang.
960 Many embedded systems are resource constrained, and will not be able to
961 build clang in a reasonable time, or in some cases at all. In those
962 cases, cross building bootable systems on amd64 is a workaround.
964 This new version of clang introduces a number of new warnings, of which
965 the following are most likely to appear:
969 This warns in two cases, for both C and C++:
970 * When the code is trying to take the absolute value of an unsigned
971 quantity, which is effectively a no-op, and almost never what was
972 intended. The code should be fixed, if at all possible. If you are
973 sure that the unsigned quantity can be safely cast to signed, without
974 loss of information or undefined behavior, you can add an explicit
975 cast, or disable the warning.
977 * When the code is trying to take an absolute value, but the called
978 abs() variant is for the wrong type, which can lead to truncation.
979 If you want to disable the warning instead of fixing the code, please
980 make sure that truncation will not occur, or it might lead to unwanted
983 -Wtautological-undefined-compare and
984 -Wundefined-bool-conversion
986 These warn when C++ code is trying to compare 'this' against NULL, while
987 'this' should never be NULL in well-defined C++ code. However, there is
988 some legacy (pre C++11) code out there, which actively abuses this
989 feature, which was less strictly defined in previous C++ versions.
991 Squid and openjdk do this, for example. The warning can be turned off
992 for C++98 and earlier, but compiling the code in C++11 mode might result
993 in unexpected behavior; for example, the parts of the program that are
994 unreachable could be optimized away.
997 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER)
998 kernel sources have been removed. The .h files remain, since some
999 utilities include them. This will need to be fixed later.
1000 If "mount -t oldnfs ..." is attempted, it will fail.
1001 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used,
1002 the utilities will report errors.
1005 The handling of LOCAL_LIB_DIRS has been altered to skip addition of
1006 directories to top level SUBDIR variable when their parent
1007 directory is included in LOCAL_DIRS. Users with build systems with
1008 such hierarchies and without SUBDIR entries in the parent
1009 directory Makefiles should add them or add the directories to
1013 faith(4) and faithd(8) have been removed from the base system. Faith
1014 has been obsolete for a very long time.
1017 vt(4), the new console driver, is enabled by default. It brings
1018 support for Unicode and double-width characters, as well as
1019 support for UEFI and integration with the KMS kernel video
1022 You may need to update your console settings in /etc/rc.conf,
1023 most probably the keymap. During boot, /etc/rc.d/syscons will
1024 indicate what you need to do.
1026 vt(4) still has issues and lacks some features compared to
1027 syscons(4). See the wiki for up-to-date information:
1028 https://wiki.freebsd.org/Newcons
1030 If you want to keep using syscons(4), you can do so by adding
1031 the following line to /boot/loader.conf:
1035 pjdfstest has been integrated into kyua as an opt-in test suite.
1036 Please see share/doc/pjdfstest/README for more details on how to
1040 gperf has been removed from the base system for architectures
1041 that use clang. Ports that require gperf will obtain it from the
1045 pjdfstest has been moved from tools/regression/pjdfstest to
1049 At svn r271982, The default linux compat kernel ABI has been adjusted
1050 to 2.6.18 in support of the linux-c6 compat ports infrastructure
1051 update. If you wish to continue using the linux-f10 compat ports,
1052 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are
1053 encouraged to update their linux-compat packages to linux-c6 during
1054 their next update cycle.
1057 The ofwfb driver, used to provide a graphics console on PowerPC when
1058 using vt(4), no longer allows mmap() of all physical memory. This
1059 will prevent Xorg on PowerPC with some ATI graphics cards from
1060 initializing properly unless x11-servers/xorg-server is updated to
1064 The xdev targets have been converted to using TARGET and
1065 TARGET_ARCH instead of XDEV and XDEV_ARCH.
1068 The default unbound configuration has been modified to address
1069 issues with reverse lookups on networks that use private
1070 address ranges. If you use the local_unbound service, run
1071 "service local_unbound setup" as root to regenerate your
1072 configuration, then "service local_unbound reload" to load the
1076 The GNU texinfo and GNU info pages are not built and installed
1077 anymore, WITH_INFO knob has been added to allow to built and install
1079 UPDATE: see 20150102 entry on texinfo's removal
1082 The GNU readline library is now an INTERNALLIB - that is, it is
1083 statically linked into consumers (GDB and variants) in the base
1084 system, and the shared library is no longer installed. The
1085 devel/readline port is available for third party software that
1089 The Itanium architecture (ia64) has been removed from the list of
1090 known architectures. This is the first step in the removal of the
1094 Commit r268115 has added NFSv4.1 server support, merged from
1095 projects/nfsv4.1-server. Since this includes changes to the
1096 internal interfaces between the NFS related modules, a full
1097 build of the kernel and modules will be necessary.
1098 __FreeBSD_version has been bumped.
1101 The WITHOUT_VT_SUPPORT kernel config knob has been renamed
1102 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning
1103 which differs from the behaviour controlled by this knob.)
1106 Maximal length of the serial number in CTL was increased from 16 to
1107 64 chars, that breaks ABI. All CTL-related tools, such as ctladm
1108 and ctld, need to be rebuilt to work with a new kernel.
1111 The libatf-c and libatf-c++ major versions were downgraded to 0 and
1112 1 respectively to match the upstream numbers. They were out of
1113 sync because, when they were originally added to FreeBSD, the
1114 upstream versions were not respected. These libraries are private
1115 and not yet built by default, so renumbering them should be a
1116 non-issue. However, unclean source trees will yield broken test
1117 programs once the operator executes "make delete-old-libs" after a
1118 "make installworld".
1120 Additionally, the atf-sh binary was made private by moving it into
1121 /usr/libexec/. Already-built shell test programs will keep the
1122 path to the old binary so they will break after "make delete-old"
1125 If you are using WITH_TESTS=yes (not the default), wipe the object
1126 tree and rebuild from scratch to prevent spurious test failures.
1127 This is only needed once: the misnumbered libraries and misplaced
1128 binaries have been added to OptionalObsoleteFiles.inc so they will
1129 be removed during a clean upgrade.
1132 Clang and llvm have been upgraded to 3.4.1 release.
1135 We bogusly installed src.opts.mk in /usr/share/mk. This file should
1136 be removed to avoid issues in the future (and has been added to
1140 /etc/src.conf now affects only builds of the FreeBSD src tree. In the
1141 past, it affected all builds that used the bsd.*.mk files. The old
1142 behavior was a bug, but people may have relied upon it. To get this
1143 behavior back, you can .include /etc/src.conf from /etc/make.conf
1144 (which is still global and isn't changed). This also changes the
1145 behavior of incremental builds inside the tree of individual
1146 directories. Set MAKESYSPATH to ".../share/mk" to do that.
1147 Although this has survived make universe and some upgrade scenarios,
1148 other upgrade scenarios may have broken. At least one form of
1149 temporary breakage was fixed with MAKESYSPATH settings for buildworld
1150 as well... In cases where MAKESYSPATH isn't working with this
1151 setting, you'll need to set it to the full path to your tree.
1153 One side effect of all this cleaning up is that bsd.compiler.mk
1154 is no longer implicitly included by bsd.own.mk. If you wish to
1155 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk
1159 The lindev device has been removed since /dev/full has been made a
1160 standard device. __FreeBSD_version has been bumped.
1163 The knob WITHOUT_VI was added to the base system, which controls
1164 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1)
1165 in order to reorder files share/termcap and didn't build ex(1) as a
1166 build tool, so building/installing with WITH_VI is highly advised for
1167 build hosts for older releases.
1169 This issue has been fixed in stable/9 and stable/10 in r277022 and
1170 r276991, respectively.
1173 The YES_HESIOD knob has been removed. It has been obsolete for
1174 a decade. Please move to using WITH_HESIOD instead or your builds
1175 will silently lack HESIOD.
1178 The uart(4) driver has been changed with respect to its handling
1179 of the low-level console. Previously the uart(4) driver prevented
1180 any process from changing the baudrate or the CLOCAL and HUPCL
1181 control flags. By removing the restrictions, operators can make
1182 changes to the serial console port without having to reboot.
1183 However, when getty(8) is started on the serial device that is
1184 associated with the low-level console, a misconfigured terminal
1185 line in /etc/ttys will now have a real impact.
1186 Before upgrading the kernel, make sure that /etc/ttys has the
1187 serial console device configured as 3wire without baudrate to
1188 preserve the previous behaviour. E.g:
1189 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure
1192 Support for libwrap (TCP wrappers) in rpcbind was disabled by default
1193 to improve performance. To re-enable it, if needed, run rpcbind
1194 with command line option -W.
1197 Switched back to the GPL dtc compiler due to updates in the upstream
1198 dts files not being supported by the BSDL dtc compiler. You will need
1199 to rebuild your kernel toolchain to pick up the new compiler. Core dumps
1200 may result while building dtb files during a kernel build if you fail
1201 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler.
1204 Clang and llvm have been upgraded to 3.4 release.
1207 The nve(4) driver has been removed. Please use the nfe(4) driver
1208 for NVIDIA nForce MCP Ethernet adapters instead.
1211 An ABI incompatibility crept into the libc++ 3.4 import in r261283.
1212 This could cause certain C++ applications using shared libraries built
1213 against the previous version of libc++ to crash. The incompatibility
1214 has now been fixed, but any C++ applications or shared libraries built
1215 between r261283 and r261801 should be recompiled.
1218 OpenSSH will now ignore errors caused by kernel lacking of Capsicum
1219 capability mode support. Please note that enabling the feature in
1220 kernel is still highly recommended.
1223 OpenSSH is now built with sandbox support, and will use sandbox as
1224 the default privilege separation method. This requires Capsicum
1225 capability mode support in kernel.
1228 The libelf and libdwarf libraries have been updated to newer
1229 versions from upstream. Shared library version numbers for
1230 these two libraries were bumped. Any ports or binaries
1231 requiring these two libraries should be recompiled.
1232 __FreeBSD_version is bumped to 1100006.
1235 If a Makefile in a tests/ directory was auto-generating a Kyuafile
1236 instead of providing an explicit one, this would prevent such
1237 Makefile from providing its own Kyuafile in the future during
1238 NO_CLEAN builds. This has been fixed in the Makefiles but manual
1239 intervention is needed to clean an objdir if you use NO_CLEAN:
1240 # find /usr/obj -name Kyuafile | xargs rm -f
1243 The behavior of gss_pseudo_random() for the krb5 mechanism
1244 has changed, for applications requesting a longer random string
1245 than produced by the underlying enctype's pseudo-random() function.
1246 In particular, the random string produced from a session key of
1247 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will
1248 be different at the 17th octet and later, after this change.
1249 The counter used in the PRF+ construction is now encoded as a
1250 big-endian integer in accordance with RFC 4402.
1251 __FreeBSD_version is bumped to 1100004.
1254 The WITHOUT_ATF build knob has been removed and its functionality
1255 has been subsumed into the more generic WITHOUT_TESTS. If you were
1256 using the former to disable the build of the ATF libraries, you
1257 should change your settings to use the latter.
1260 The default version of mtree is nmtree which is obtained from
1261 NetBSD. The output is generally the same, but may vary
1262 slightly. If you found you need identical output adding
1263 "-F freebsd9" to the command line should do the trick. For the
1264 time being, the old mtree is available as fmtree.
1267 libbsdyml has been renamed to libyaml and moved to /usr/lib/private.
1268 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg
1269 1.1.4_8 and verify bsdyml not linked in, before running "make
1271 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean
1273 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml
1276 The stable/10 branch has been created in subversion from head
1280 The rc.d/jail script has been updated to support jail(8)
1281 configuration file. The "jail_<jname>_*" rc.conf(5) variables
1282 for per-jail configuration are automatically converted to
1283 /var/run/jail.<jname>.conf before the jail(8) utility is invoked.
1284 This is transparently backward compatible. See below about some
1285 incompatibilities and rc.conf(5) manual page for more details.
1287 These variables are now deprecated in favor of jail(8) configuration
1288 file. One can use "rc.d/jail config <jname>" command to generate
1289 a jail(8) configuration file in /var/run/jail.<jname>.conf without
1290 running the jail(8) utility. The default pathname of the
1291 configuration file is /etc/jail.conf and can be specified by
1292 using $jail_conf or $jail_<jname>_conf variables.
1294 Please note that jail_devfs_ruleset accepts an integer at
1295 this moment. Please consider to rewrite the ruleset name
1299 BIND has been removed from the base system. If all you need
1300 is a local resolver, simply enable and start the local_unbound
1301 service instead. Otherwise, several versions of BIND are
1302 available in the ports tree. The dns/bind99 port is one example.
1304 With this change, nslookup(1) and dig(1) are no longer in the base
1305 system. Users should instead use host(1) and drill(1) which are
1306 in the base system. Alternatively, nslookup and dig can
1307 be obtained by installing the dns/bind-tools port.
1310 With the addition of unbound(8), a new unbound user is now
1311 required during installworld. "mergemaster -p" can be used to
1312 add the user prior to installworld, as documented in the handbook.
1315 OpenSSH is now built with DNSSEC support, and will by default
1316 silently trust signed SSHFP records. This can be controlled with
1317 the VerifyHostKeyDNS client configuration setting. DNSSEC support
1318 can be disabled entirely with the WITHOUT_LDNS option in src.conf.
1321 The GNU Compiler Collection and C++ standard library (libstdc++)
1322 are no longer built by default on platforms where clang is the system
1323 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX
1324 options in src.conf.
1327 The PROCDESC kernel option is now part of the GENERIC kernel
1328 configuration and is required for the rwhod(8) to work.
1329 If you are using custom kernel configuration, you should include
1333 The API and ABI related to the Capsicum framework was modified
1334 in backward incompatible way. The userland libraries and programs
1335 have to be recompiled to work with the new kernel. This includes the
1336 following libraries and programs, but the whole buildworld is
1337 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl,
1338 kdump, procstat, rwho, rwhod, uniq.
1341 AES-NI intrinsic support has been added to gcc. The AES-NI module
1342 has been updated to use this support. A new gcc is required to build
1343 the aesni module on both i386 and amd64.
1346 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices.
1347 Thus "device padlock_rng" and "device rdrand_rng" should be
1348 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG".
1351 WITH_ICONV has been split into two feature sets. WITH_ICONV now
1352 enables just the iconv* functionality and is now on by default.
1353 WITH_LIBICONV_COMPAT enables the libiconv api and link time
1354 compatibility. Set WITHOUT_ICONV to build the old way.
1355 If you have been using WITH_ICONV before, you will very likely
1356 need to turn on WITH_LIBICONV_COMPAT.
1359 INVARIANTS option now enables DEBUG for code with OpenSolaris and
1360 Illumos origin, including ZFS. If you have INVARIANTS in your
1361 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG
1363 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS)
1364 locks if WITNESS option was set. Because that generated a lot of
1365 witness(9) reports and all of them were believed to be false
1366 positives, this is no longer done. New option OPENSOLARIS_WITNESS
1367 can be used to achieve the previous behavior.
1370 Timer values in IPv6 data structures now use time_uptime instead
1371 of time_second. Although this is not a user-visible functional
1372 change, userland utilities which directly use them---ndp(8),
1373 rtadvd(8), and rtsold(8) in the base system---need to be updated
1374 to r253970 or later.
1377 find -delete can now delete the pathnames given as arguments,
1378 instead of only files found below them or if the pathname did
1379 not contain any slashes. Formerly, the following error message
1382 find: -delete: <path>: relative path potentially not safe
1384 Deleting the pathnames given as arguments can be prevented
1385 without error messages using -mindepth 1 or by changing
1386 directory and passing "." as argument to find. This works in the
1387 old as well as the new version of find.
1390 Behavior of devfs rules path matching has been changed.
1391 Pattern is now always matched against fully qualified devfs
1392 path and slash characters must be explicitly matched by
1393 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs
1394 subdirectories must be reviewed.
1397 The default ARM ABI has changed to the ARM EABI. The old ABI is
1398 incompatible with the ARM EABI and all programs and modules will
1399 need to be rebuilt to work with a new kernel.
1401 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set.
1403 NOTE: Support for the old ABI will be removed in the future and
1404 users are advised to upgrade.
1407 pkg_install has been disconnected from the build if you really need it
1408 you should add WITH_PKGTOOLS in your src.conf(5).
1411 Most of network statistics structures were changed to be able
1412 keep 64-bits counters. Thus all tools, that work with networking
1413 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.)
1416 Fix a bug that allowed a tracing process (e.g. gdb) to write
1417 to a memory-mapped file in the traced process's address space
1418 even if neither the traced process nor the tracing process had
1419 write access to that file.
1422 CVS has been removed from the base system. An exact copy
1423 of the code is available from the devel/cvs port.
1426 Some people report the following error after the switch to bmake:
1428 make: illegal option -- J
1429 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable]
1431 *** [buildworld] Error code 2
1433 this likely due to an old instance of make in
1434 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE})
1435 which src/Makefile will use that blindly, if it exists, so if
1436 you see the above error:
1438 rm -rf `make -V MAKEPATH`
1443 Use bmake by default.
1444 Whereas before one could choose to build with bmake via
1445 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old
1446 make. The goal is to remove these knobs for 10-RELEASE.
1448 It is worth noting that bmake (like gmake) treats the command
1449 line as the unit of failure, rather than statements within the
1450 command line. Thus '(cd some/where && dosomething)' is safer
1451 than 'cd some/where; dosomething'. The '()' allows consistent
1452 behavior in parallel build.
1455 Fix a bug that allows NFS clients to issue READDIR on files.
1458 The WITHOUT_IDEA option has been removed because
1459 the IDEA patent expired.
1462 The sysctl which controls TRIM support under ZFS has been renamed
1463 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been
1467 The mergemaster command now uses the default MAKEOBJDIRPREFIX
1468 rather than creating it's own in the temporary directory in
1469 order allow access to bootstrapped versions of tools such as
1470 install and mtree. When upgrading from version of FreeBSD where
1471 the install command does not support -l, you will need to
1472 install a new mergemaster command if mergemaster -p is required.
1473 This can be accomplished with the command (cd src/usr.sbin/mergemaster
1477 Legacy ATA stack, disabled and replaced by new CAM-based one since
1478 FreeBSD 9.0, completely removed from the sources. Kernel modules
1479 atadisk and atapi*, user-level tools atacontrol and burncd are
1480 removed. Kernel option `options ATA_CAM` is now permanently enabled
1484 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2)
1485 and socketpair(2). Software, in particular Kerberos, may
1486 automatically detect and use these during building. The resulting
1487 binaries will not work on older kernels.
1490 CTL_DISABLE has also been added to the sparc64 GENERIC (for further
1491 information, see the respective 20130304 entry).
1494 Recent commits to callout(9) changed the size of struct callout,
1495 so the KBI is probably heavily disturbed. Also, some functions
1496 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced
1497 by macros. Every kernel module using it won't load, so rebuild
1500 The ctl device has been re-enabled in GENERIC for i386 and amd64,
1501 but does not initialize by default (because of the new CTL_DISABLE
1502 option) to save memory. To re-enable it, remove the CTL_DISABLE
1503 option from the kernel config file or set kern.cam.ctl.disable=0
1504 in /boot/loader.conf.
1507 The ctl device has been disabled in GENERIC for i386 and amd64.
1508 This was done due to the extra memory being allocated at system
1509 initialisation time by the ctl driver which was only used if
1510 a CAM target device was created. This makes a FreeBSD system
1511 unusable on 128MB or less of RAM.
1514 A new compression method (lz4) has been merged to -HEAD. Please
1515 refer to zpool-features(7) for more information.
1517 Please refer to the "ZFS notes" section of this file for information
1518 on upgrading boot ZFS pools.
1521 A BSD-licensed patch(1) variant has been added and is installed
1522 as bsdpatch, being the GNU version the default patch.
1523 To inverse the logic and use the BSD-licensed one as default,
1524 while having the GNU version installed as gnupatch, rebuild
1525 and install world with the WITH_BSD_PATCH knob set.
1528 Due to the use of the new -l option to install(1) during build
1529 and install, you must take care not to directly set the INSTALL
1530 make variable in your /etc/make.conf, /etc/src.conf, or on the
1531 command line. If you wish to use the -C flag for all installs
1532 you may be able to add INSTALL+=-C to /etc/make.conf or
1536 The install(1) option -M has changed meaning and now takes an
1537 argument that is a file or path to append logs to. In the
1538 unlikely event that -M was the last option on the command line
1539 and the command line contained at least two files and a target
1540 directory the first file will have logs appended to it. The -M
1541 option served little practical purpose in the last decade so its
1542 use is expected to be extremely rare.
1545 After switching to Clang as the default compiler some users of ZFS
1546 on i386 systems started to experience stack overflow kernel panics.
1547 Please consider using 'options KSTACK_PAGES=4' in such configurations.
1550 GEOM_LABEL now mangles label names read from file system metadata.
1551 Mangling affect labels containing spaces, non-printable characters,
1552 '%' or '"'. Device names in /etc/fstab and other places may need to
1556 By default, only the 10 most recent kernel dumps will be saved. To
1557 restore the previous behaviour (no limit on the number of kernel dumps
1558 stored in the dump directory) add the following line to /etc/rc.conf:
1563 With the addition of auditdistd(8), a new auditdistd user is now
1564 required during installworld. "mergemaster -p" can be used to
1565 add the user prior to installworld, as documented in the handbook.
1568 The sin6_scope_id member variable in struct sockaddr_in6 is now
1569 filled by the kernel before passing the structure to the userland via
1570 sysctl or routing socket. This means the KAME-specific embedded scope
1571 id in sin6_addr.s6_addr[2] is always cleared in userland application.
1572 This behavior can be controlled by net.inet6.ip6.deembed_scopeid.
1573 __FreeBSD_version is bumped to 1000025.
1576 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default.
1577 This means that the world and kernel will be compiled with clang
1578 and that clang will be installed as /usr/bin/cc, /usr/bin/c++,
1579 and /usr/bin/cpp. To disable this behavior and revert to building
1580 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions
1581 of current may need to bootstrap WITHOUT_CLANG first if the clang
1582 build fails (its compatibility window doesn't extend to the 9 stable
1586 The IPFIREWALL_FORWARD kernel option has been removed. Its
1587 functionality now turned on by default.
1590 The ZERO_COPY_SOCKET kernel option has been removed and
1591 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP.
1592 NB: SOCKET_SEND_COW uses the VM page based copy-on-write
1593 mechanism which is not safe and may result in kernel crashes.
1594 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current
1595 driver supports disposeable external page sized mbuf storage.
1596 Proper replacements for both zero-copy mechanisms are under
1597 consideration and will eventually lead to complete removal
1598 of the two kernel options.
1601 The IPv4 network stack has been converted to network byte
1602 order. The following modules need to be recompiled together
1603 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4),
1604 pf(4), ipfw(4), ng_ipfw(4), stf(4).
1607 Support for non-MPSAFE filesystems was removed from VFS. The
1608 VFS_VERSION was bumped, all filesystem modules shall be
1612 All the non-MPSAFE filesystems have been disconnected from
1613 the build. The full list includes: codafs, hpfs, ntfs, nwfs,
1614 portalfs, smbfs, xfs.
1617 The interface cloning API and ABI has changed. The following
1618 modules need to be recompiled together with kernel:
1619 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4),
1620 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4),
1621 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4).
1624 The sdhci driver was split in two parts: sdhci (generic SD Host
1625 Controller logic) and sdhci_pci (actual hardware driver).
1626 No kernel config modifications are required, but if you
1627 load sdhc as a module you must switch to sdhci_pci instead.
1630 Import the FUSE kernel and userland support into base system.
1633 The GNU sort(1) program has been removed since the BSD-licensed
1634 sort(1) has been the default for quite some time and no serious
1635 problems have been reported. The corresponding WITH_GNU_SORT
1639 The pfil(9) API/ABI for AF_INET family has been changed. Packet
1640 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled
1644 The net80211(4) ABI has been changed to allow for improved driver
1645 PS-POLL and power-save support. All wireless drivers need to be
1646 recompiled to work with the new kernel.
1649 The random(4) support for the VIA hardware random number
1650 generator (`PADLOCK') is no longer enabled unconditionally.
1651 Add the padlock_rng device in the custom kernel config if
1652 needed. The GENERIC kernels on i386 and amd64 do include the
1653 device, so the change only affects the custom kernel
1657 The pf(4) packet filter ABI has been changed. pfctl(8) and
1658 snmp_pf module need to be recompiled to work with new kernel.
1661 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged
1662 to -HEAD. Pools that have empty_bpobj in active state can not be
1663 imported read-write with ZFS implementations that do not support
1664 this feature. For more information read the zpool-features(5)
1668 The sparc64 ZFS loader has been changed to no longer try to auto-
1669 detect ZFS providers based on diskN aliases but now requires these
1670 to be explicitly listed in the OFW boot-device environment variable.
1673 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring
1674 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are
1675 configuration changes. Make sure to merge /etc/ssl/openssl.cnf.
1678 The following sysctls and tunables have been renamed for consistency
1679 with other variables:
1680 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered
1681 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered
1684 The sort utility has been replaced with BSD sort. For now, GNU sort
1685 is also available as "gnusort" or the default can be set back to
1686 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be
1687 installed as "bsdsort".
1690 A new version of ZFS (pool version 5000) has been merged to -HEAD.
1691 Starting with this version the old system of ZFS pool versioning
1692 is superseded by "feature flags". This concept enables forward
1693 compatibility against certain future changes in functionality of ZFS
1694 pools. The first read-only compatible "feature flag" for ZFS pools
1695 is named "com.delphix:async_destroy". For more information
1696 read the new zpool-features(5) manual page.
1697 Please refer to the "ZFS notes" section of this file for information
1698 on upgrading boot ZFS pools.
1701 The malloc(3) implementation embedded in libc now uses sources imported
1702 as contrib/jemalloc. The most disruptive API change is to
1703 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf,
1704 delete it prior to installworld, and optionally re-create it using the
1705 new format after rebooting. See malloc.conf(5) for details
1706 (specifically the TUNING section and the "opt.*" entries in the MALLCTL
1710 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb
1711 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is
1712 now spelled mips. This is to aid compatibility with third-party
1713 software that expects this naming scheme in uname(3). Little-endian
1714 settings are unchanged. If you are updating a big-endian mips64 machine
1715 from before this change, you may need to set MACHINE_ARCH=mips64 in
1716 your environment before the new build system will recognize your machine.
1719 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported
1723 Now unix domain sockets behave "as expected" on nullfs(5). Previously
1724 nullfs(5) did not pass through all behaviours to the underlying layer,
1725 as a result if we bound to a socket on the lower layer we could connect
1726 only to the lower path; if we bound to the upper layer we could connect
1727 only to the upper path. The new behavior is one can connect to both the
1728 lower and the upper paths regardless what layer path one binds to.
1731 The getifaddrs upgrade path broken with 20111215 has been restored.
1732 If you have upgraded in between 20111215 and 20120209 you need to
1733 recompile libc again with your kernel. You still need to recompile
1734 world to be able to configure CARP but this restriction already
1735 comes from 20111215.
1738 The set_rcvar() function has been removed from /etc/rc.subr. All
1739 base and ports rc.d scripts have been updated, so if you have a
1740 port installed with a script in /usr/local/etc/rc.d you can either
1741 hand-edit the rcvar= line, or reinstall the port.
1743 An easy way to handle the mass-update of /etc/rc.d:
1744 rm /etc/rc.d/* && mergemaster -i
1747 panic(9) now stops other CPUs in the SMP systems, disables interrupts
1748 on the current CPU and prevents other threads from running.
1749 This behavior can be reverted using the kern.stop_scheduler_on_panic
1751 The new behavior can be incompatible with kern.sync_on_panic.
1754 The carp(4) facility has been changed significantly. Configuration
1755 of the CARP protocol via ifconfig(8) has changed, as well as format
1756 of CARP events submitted to devd(8) has changed. See manual pages
1757 for more information. The arpbalance feature of carp(4) is currently
1758 not supported anymore.
1760 Size of struct in_aliasreq, struct in6_aliasreq has changed. User
1761 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8),
1762 need to be recompiled.
1765 The acpi_wmi(4) status device /dev/wmistat has been renamed to
1769 The option VFS_ALLOW_NONMPSAFE option has been added in order to
1770 explicitely support non-MPSAFE filesystems.
1771 It is on by default for all supported platform at this present
1775 The broken amd(4) driver has been replaced with esp(4) in the amd64,
1776 i386 and pc98 GENERIC kernel configuration files.
1779 sysinstall has been removed
1782 The stable/9 branch created in subversion. This corresponds to the
1783 RELENG_9 branch in CVS.
1789 Avoid using make -j when upgrading. While generally safe, there are
1790 sometimes problems using -j to upgrade. If your upgrade fails with
1791 -j, please try again without -j. From time to time in the past there
1792 have been problems using -j with buildworld and/or installworld. This
1793 is especially true when upgrading between "distant" versions (eg one
1794 that cross a major release boundary or several minor releases, or when
1795 several months have passed on the -current branch).
1797 Sometimes, obscure build problems are the result of environment
1798 poisoning. This can happen because the make utility reads its
1799 environment when searching for values for global variables. To run
1800 your build attempts in an "environmental clean room", prefix all make
1801 commands with 'env -i '. See the env(1) manual page for more details.
1803 When upgrading from one major version to another it is generally best
1804 to upgrade to the latest code in the currently installed branch first,
1805 then do an upgrade to the new branch. This is the best-tested upgrade
1806 path, and has the highest probability of being successful. Please try
1807 this approach before reporting problems with a major version upgrade.
1809 When upgrading a live system, having a root shell around before
1810 installing anything can help undo problems. Not having a root shell
1811 around can lead to problems if pam has changed too much from your
1812 starting point to allow continued authentication after the upgrade.
1814 This file should be read as a log of events. When a later event changes
1815 information of a prior event, the prior event should not be deleted.
1816 Instead, a pointer to the entry with the new information should be
1817 placed in the old entry. Readers of this file should also sanity check
1818 older entries before relying on them blindly. Authors of new entries
1819 should write them with this in mind.
1823 When upgrading the boot ZFS pool to a new version, always follow
1826 1.) recompile and reinstall the ZFS boot loader and boot block
1827 (this is part of "make buildworld" and "make installworld")
1829 2.) update the ZFS boot block on your boot drive
1831 The following example updates the ZFS boot block on the first
1832 partition (freebsd-boot) of a GPT partitioned drive ada0:
1833 "gpart bootcode -p /boot/gptzfsboot -i 1 ada0"
1835 Non-boot pools do not need these updates.
1839 If you are updating from a prior version of FreeBSD (even one just
1840 a few days old), you should follow this procedure. It is the most
1841 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
1843 make kernel-toolchain
1844 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
1845 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
1847 To test a kernel once
1848 ---------------------
1849 If you just want to boot a kernel once (because you are not sure
1850 if it works, or if you want to boot a known bad kernel to provide
1851 debugging information) run
1852 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
1853 nextboot -k testkernel
1855 To just build a kernel when you know that it won't mess you up
1856 --------------------------------------------------------------
1857 This assumes you are already running a CURRENT system. Replace
1858 ${arch} with the architecture of your machine (e.g. "i386",
1859 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc).
1861 cd src/sys/${arch}/conf
1862 config KERNEL_NAME_HERE
1863 cd ../compile/KERNEL_NAME_HERE
1868 If this fails, go to the "To build a kernel" section.
1870 To rebuild everything and install it on the current system.
1871 -----------------------------------------------------------
1872 # Note: sometimes if you are running current you gotta do more than
1873 # is listed here if you are upgrading from a really old current.
1875 <make sure you have good level 0 dumps>
1877 make kernel KERNCONF=YOUR_KERNEL_HERE
1879 <reboot in single user> [3]
1886 To cross-install current onto a separate partition
1887 --------------------------------------------------
1888 # In this approach we use a separate partition to hold
1889 # current's root, 'usr', and 'var' directories. A partition
1890 # holding "/", "/usr" and "/var" should be about 2GB in
1893 <make sure you have good level 0 dumps>
1896 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1897 <maybe newfs current's root partition>
1898 <mount current's root partition on directory ${CURRENT_ROOT}>
1899 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC
1900 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1901 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1902 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
1903 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1904 <reboot into current>
1905 <do a "native" rebuild/install as described in the previous section>
1906 <maybe install compatibility libraries from ports/misc/compat*>
1910 To upgrade in-place from stable to current
1911 ----------------------------------------------
1912 <make sure you have good level 0 dumps>
1914 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
1916 <reboot in single user> [3]
1923 Make sure that you've read the UPDATING file to understand the
1924 tweaks to various things you need. At this point in the life
1925 cycle of current, things change often and you are on your own
1926 to cope. The defaults can also change, so please read ALL of
1927 the UPDATING entries.
1929 Also, if you are tracking -current, you must be subscribed to
1930 freebsd-current@freebsd.org. Make sure that before you update
1931 your sources that you have read and understood all the recent
1932 messages there. If in doubt, please track -stable which has
1933 much fewer pitfalls.
1935 [1] If you have third party modules, such as vmware, you
1936 should disable them at this point so they don't crash your
1939 [3] From the bootblocks, boot -s, and then do
1944 adjkerntz -i # if CMOS is wall time
1945 Also, when doing a major release upgrade, it is required that
1946 you boot into single user mode to do the installworld.
1948 [4] Note: This step is non-optional. Failure to do this step
1949 can result in a significant reduction in the functionality of the
1950 system. Attempting to do it by hand is not recommended and those
1951 that pursue this avenue should read this file carefully, as well
1952 as the archives of freebsd-current and freebsd-hackers mailing lists
1953 for potential gotchas. The -U option is also useful to consider.
1954 See mergemaster(8) for more information.
1956 [5] Usually this step is a noop. However, from time to time
1957 you may need to do this if you get unknown user in the following
1958 step. It never hurts to do it all the time. You may need to
1959 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1960 install) after the buildworld before this step if you last updated
1961 from current before 20130425 or from -stable before 20130430.
1963 [6] This only deletes old files and directories. Old libraries
1964 can be deleted by "make delete-old-libs", but you have to make
1965 sure that no program is using those libraries anymore.
1967 [8] The new kernel must be able to run existing binaries used by
1968 an installworld. When upgrading across major versions, the new
1969 kernel's configuration must include the correct COMPAT_FREEBSD<n>
1970 option for existing binaries (e.g. COMPAT_FREEBSD11 to run 11.x
1971 binaries). Failure to do so may leave you with a system that is
1972 hard to boot to recover. A GENERIC kernel will include suitable
1973 compatibility options to run binaries from older branches.
1975 Make sure that you merge any new devices from GENERIC since the
1976 last time you updated your kernel config file.
1978 [9] When checking out sources, you must include the -P flag to have
1979 cvs prune empty directories.
1981 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1982 "?=" instead of the "=" assignment operator, so that buildworld can
1983 override the CPUTYPE if it needs to.
1985 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1986 not on the command line, or in /etc/make.conf. buildworld will
1987 warn if it is improperly defined.
1990 This file contains a list, in reverse chronological order, of major
1991 breakages in tracking -current. It is not guaranteed to be a complete
1992 list of such breakages, and only contains entries since September 23, 2011.
1993 If you need to see UPDATING entries from before that date, you will need
1994 to fetch an UPDATING file from an older FreeBSD release.
1996 Copyright information:
1998 Copyright 1998-2009 M. Warner Losh. All Rights Reserved.
2000 Redistribution, publication, translation and use, with or without
2001 modification, in full or in part, in any form or format of this
2002 document are permitted without further permission from the author.
2004 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
2005 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
2006 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
2007 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
2008 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
2009 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
2010 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2011 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
2012 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
2013 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
2014 POSSIBILITY OF SUCH DAMAGE.
2016 Contact Warner Losh if you have any questions about your use of
projects / FreeBSD / FreeBSD.git / blob