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 20200512 p9 FreeBSD-EN-20:08.tzdata
20 FreeBSD-EN-20:10.build
21 FreeBSD-SA-20:12.libalias
22 FreeBSD-SA-20:13.libalias
24 FreeBSD-SA-20:15.cryptodev
26 Import tzdata 2020a. [EN-20:08.tzdata]
28 Fix incorrect build host Clang version detection [EN-20:10.build]
30 Fix insufficient packet length validation in libalias [SA-20:12.libalias]
32 Fix memory disclosure vulnerability in libalias [SA-20:13.libalias]
34 Fix improper checking in SCTP-AUTH shared key update [SA-20:14.sctp]
36 Fix use after free in cryptodev module [SA-20:15.cryptodev]
38 20200421 p8 FreeBSD-EN-20:07.quotad
41 Fix regression in rpc.rquotad with certain NFS servers [EN-20:07.quotad]
43 Fix ipfw invalid mbuf handling [SA-20:10.ipfw]
45 20200319 p7 FreeBSD-EN-20:04.pfctl
48 FreeBSD-SA-20:05.if_oce_ioctl
49 FreeBSD-SA-20:07.epair
53 Fix missing pfctl(8) tunable [EN-20:04.pfctl]
55 Fix incorrect checksum calculations with IPv6 extension headers [EN-20:06.ipv6]
57 Fix TCP IPv6 SYN cache kernel information disclosure [SA-20:04.tcp]
59 Fix insufficient oce(4) ioctl(2) privilege checking [SA-20:05.if_oce_ioctl]
61 Fix incorrect user-controlled pointer use in epair [SA-20:07.epair]
63 Fix kernel memory disclosure with nested jails [SA-20:08.jail]
65 Fix multiple denial of service in ntpd [SA-20:09.ntp]
67 20200128 p6 FreeBSD-EN-20:01.ssp
68 FreeBSD-EN-20:02.nmount
69 FreeBSD-SA-20:01.libfetch
70 FreeBSD-SA-20:03.thrmisc
72 Fix imprecise ordering of SSP canary initialization [EN-20:01.ssp]
74 Fix nmount invalid pointer dereference [EN-20:02.nmount]
76 Fix libfetch buffer overflow [SA-20:01.libfetch]
78 Fix kernel stack data disclosure [SA-20:03.thrmisc]
80 20191112 p5 FreeBSD-SA-19:25.mcepsc
82 Fix Machine Check Exception on Page Size Change [SA-19:25.mcepsc]
84 20191023 p4 FreeBSD-EN-19:18.tzdata
86 Import tzdata 2019c. [EN-19:18.tzdata]
88 20190820 p3 FreeBSD-EN-19:16.bhyve
92 FreeBSD-SA-19:24.mqueuefs
94 Bhyve instruction emulation improvements (opcode 03H and F7H).
97 Fix ipfw(8) jail keyword prior to jail startup. [EN-19:17.ipfw]
99 Fix IPv6 remote denial of service. [SA-19:22.mbuf]
101 Fix kernel memory disclosure from /dev/midistat. [SA-19:23.midi]
103 Fix reference count overflow in mqueuefs. [SA-19:24.mqueuefs]
105 20190806 p2 FreeBSD-SA-19:18.bzip2
106 FreeBSD-SA-19:19.mldv2
107 FreeBSD-SA-19:20.bsnmp
108 FreeBSD-SA-19:21.bhyve
110 Fix multiple vulnerabilities in bzip2. [SA-19:18.bzip2]
112 Fix ICMPv6 / MLDv2 out-of-bounds memory access. [SA-19:19.mldv2]
114 Fix insufficient message length validation in bsnmp library.
117 Fix insufficient validation of guest-supplied data (e1000 device).
120 20190724 p1 FreeBSD-EN-19:13.mds
121 FreeBSD-SA-19:12.telnet
123 FreeBSD-SA-19:14.freebsd32
124 FreeBSD-SA-19:15.mqueuefs
125 FreeBSD-SA-19:16.bhyve
128 Fix panic from Intel CPU vulnerability mitigation. [EN-19:13.mds]
130 Fix multiple telnet client vulnerabilities. [SA-19:12.telnet]
132 Fix pts write-after-free. [SA-19:13.pts]
134 Fix kernel memory disclosure in freebsd32_ioctl. [SA-19:14.freebsd32]
136 Fix reference count overflow in mqueuefs. [SA-19:15.mqueuefs]
138 Fix byhve out-of-bounds read in XHCI device. [SA-19:16.bhyve]
140 Fix file descriptor reference count leak. [SA-19:17.fd]
145 20190702 FreeBSD-EN-19:12.tzdata
146 FreeBSD-SA-19:09.iconv
147 FreeBSD-SA-19:11.cd_ioctl
149 Import tzdata 2019b. [EN-19:12.tzdata]
151 Fix iconv buffer overflow. [SA-19:09.iconv]
153 Fix privilege escalation in cd(4) driver. [SA-19:11.cd_ioctl]
156 CARP now sets DSCP value CS7(Network Traffic) in the flowlabel field
157 of packets by default instead of only setting TOS_LOWDELAY in IPv4,
158 which was deprecated in 1998. Original behavior can be restored by
159 setting sysctl net.inet.carp.dscp=4.
162 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
163 8.0.0. Please see the 20141231 entry below for information about
164 prerequisites and upgrading, if you are not already using clang 3.5.0
168 geom_uzip(4) depends on the new module xz. If geom_uzip is statically
169 compiled into your custom kernel, add 'device xz' statement to the
173 Co-existance for Forth and Lua interpreters in bootloaders has now been
174 merged to ease testing of lualoader. LOADER_DEFAULT_INTERP, documented
175 in build(7), may be used to control which interpreter flavor is used in
176 the default loader to be installed. For systems where Lua and Forth
177 coexist, this switch can also be made on a running system by creating a
178 link from /boot/loader{,.efi} to /boot/loader_${flavor}{,.efi} rather
179 than requiring a rebuild.
181 The default flavor in this branch will remain Forth. As indicated in
182 the 20190216 UPDATING entry, booting is a complex environment; it would
183 be prudent to assume that lualoader may not work for your setup and make
184 provisions for backup boot methods.
187 zfsloader's functionality has now been folded into loader.
188 zfsloader is no longer necesasary once you've updated your
189 boot blocks. For a transition period, we will install a
190 hardlink for zfsloader to loader to allow a smooth transition
191 until the boot blocks can be updated (hard link because old
192 zfs boot blocks don't understand symlinks).
195 Lualoader has been merged to facilitate testing on this branch. It's
196 purely opt-in for now by building WITH_LOADER_LUA and WITHOUT_FORTH in
197 /etc/src.conf, but co-existance will come shortly. Booting is a complex
198 environment and test coverage for Lua-enabled loaders has been thin, so
199 it would be prudent to assume it might not work and make provisions for
203 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
204 7.0.1. Please see the 20141231 entry below for information about
205 prerequisites and upgrading, if you are not already using clang 3.5.0
209 r342562 modifies the NFSv4 server so that it obeys vfs.nfsd.nfs_privport
210 in the same as it is applied to NFSv2 and 3. This implies that NFSv4
211 servers that have vfs.nfsd.nfs_privport set will only allow mounts
212 from clients using a reserved port#. Since both the FreeBSD and Linux
213 NFSv4 clients use reserved port#s by default, this should not affect
217 The '%I' format in the kern.corefile sysctl limits the number of
218 core files that a process can generate to the number stored in the
219 debug.ncores sysctl. The '%I' format is replaced by the single digit
220 index. Previously, if all indexes were taken the kernel would overwrite
221 only a core file with the highest index in a filename.
222 Currently the system will create a new core file if there is a free
223 index or if all slots are taken it will overwrite the oldest one.
226 WITH_OFED option now only enables the build for the OFED libraries
227 and some fundamental client utilities. OpenSM and rest of the
228 debugging tools are enabled by WITH_OFED_EXTRA build switch.
229 WITH_OFED is turned on by default on amd64.
232 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
233 6.0.1. Please see the 20141231 entry below for information about
234 prerequisites and upgrading, if you are not already using clang 3.5.0
238 The releng/11.2 branch has been created from stable/11@r334458.
241 The tz database (tzdb) has been updated to 2018e. This version more
242 correctly models time stamps in time zones with negative DST such as
243 Europe/Dublin (from 1971 on), Europe/Prague (1946/7), and
244 Africa/Windhoek (1994/2017). This does not affect the UT offsets, only
245 time zone abbreviations and the tm_isdst flag.
248 The use of RSS hash from the network card aka flowid has been
249 disabled by default for lagg(4) as it's currently incompatible with
250 the lacp and loadbalance protocols.
252 This can be re-enabled by setting the following in loader.conf:
253 net.link.lagg.default_use_flowid="1"
256 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
257 6.0.0. Please see the 20141231 entry below for information about
258 prerequisites and upgrading, if you are not already using clang 3.5.0
262 The LOADER_FIREWIRE_SUPPORT build variable as been renamed to
263 WITH/OUT_LOADER_FIREWIRE. LOADER_{NO_,}GELI_SUPPORT has been renamed
264 to WITH/OUT_LOADER_GELI.
267 The geli password typed at boot is now hidden. To restore the previous
268 behavior, see geli(8) for configuration options.
270 The SW_WATCHDOG option is no longer necessary to enable the
271 hardclock-based software watchdog if no hardware watchdog is
272 configured. As before, SW_WATCHDOG will cause the software
273 watchdog to be enabled even if a hardware watchdog is configured.
276 lint(1) binaries and library are no longer built by default. To
277 enable building them, define WITH_LINT in src.conf. If you are using
278 a FreeBSD 12 or later system to build 11-stable, you may need to
279 install a lint(1) binary to use WITH_LINT.
282 When building multiple kernels using KERNCONF, non-existent KERNCONF
283 files will produce an error and buildkernel will fail. Previously
284 missing KERNCONF files silently failed giving no indication as to
285 why, only to subsequently discover during installkernel that the
286 desired kernel was never built in the first place.
289 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 5.0.0.
290 Please see the 20141231 entry below for information about prerequisites
291 and upgrading, if you are not already using clang 3.5.0 or higher.
294 Since the switch to GPT disk labels, fsck for UFS/FFS has been
295 unable to automatically find alternate superblocks. As of r322806,
296 the information needed to find alternate superblocks has been
297 moved to the end of the area reserved for the boot block.
298 Filesystems created with a newfs of this vintage or later
299 will create the recovery information. If you have a filesystem
300 created prior to this change and wish to have a recovery block
301 created for your filesystem, you can do so by running fsck in
302 forground mode (i.e., do not use the -p or -y options). As it
303 starts, fsck will ask ``SAVE DATA TO FIND ALTERNATE SUPERBLOCKS''
304 to which you should answer yes.
307 The releng/11.1 branch has been created from stable/11@r320475.
310 arm64 builds now use the base system LLD 4.0.0 linker by default,
311 instead of requiring that the aarch64-binutils port or package be
312 installed. To continue using aarch64-binutils, set
313 CROSS_BINUTILS_PREFIX=/usr/local/aarch64-freebsd/bin .
316 The ctl.ko module no longer implements the iSCSI target frontend:
317 cfiscsi.ko does instead.
319 If building cfiscsi.ko as a kernel module, the module can be loaded
320 via one of the following methods:
321 - `cfiscsi_load="YES"` in loader.conf(5).
322 - Add `cfiscsi` to `$kld_list` in rc.conf(5).
323 - ctladm(8)/ctld(8), when compiled with iSCSI support
324 (`WITH_ISCSI=yes` in src.conf(5))
326 Please see cfiscsi(4) for more details.
329 The mmcsd.ko module now additionally depends on geom_flashmap.ko.
330 Also, mmc.ko and mmcsd.ko need to be a matching pair built from the
331 same source (previously, the dependency of mmcsd.ko on mmc.ko was
332 missing, but mmcsd.ko now will refuse to load if it is incompatible
336 Binds and sends to the loopback addresses, IPv6 and IPv4, will now
337 use any explicitly assigned loopback address available in the jail
338 instead of using the first assigned address of the jail.
341 As of r316810 for ipfilter, keep frags is no longer assumed when
342 keep state is specified in a rule. r316810 aligns ipfilter with
343 documentation in man pages separating keep frags from keep state.
344 This allows keep state to specified without forcing keep frags
345 and allows keep frags to be specified independently of keep state.
346 To maintain previous behaviour, also specify keep frags with
347 keep state (as documented in ipf.conf.5).
350 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 4.0.0.
351 Please see the 20141231 entry below for information about prerequisites
352 and upgrading, if you are not already using clang 3.5.0 or higher.
355 The code that provides support for ZFS .zfs/ directory functionality
356 has been reimplemented. It's not possible now to create a snapshot
357 by mkdir under .zfs/snapshot/. That should be the only user visible
361 Many changes in the IPsec code have been merged from the FreeBSD-CURRENT
362 branch. The IPSEC_FILTERTUNNEL kernel option is removed in favour of
363 corresponding sysctl. The IPSEC_NAT_T kernel option is also removed,
364 and now NAT-T is supported by default. Security associations now use
365 the single namespace for SPI allocation, so if you use several manually
366 configured security associations with the same SPI, this configuration
370 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.1.
371 Please see the 20141231 entry below for information about prerequisites
372 and upgrading, if you are not already using clang 3.5.0 or higher.
375 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.0.
376 Please see the 20141231 entry below for information about prerequisites
377 and upgrading, if you are not already using clang 3.5.0 or higher.
380 The layout of the pmap structure has changed for powerpc to put the pmap
381 statistics at the front for all CPU variations. libkvm(3) and all tools
382 that link against it need to be recompiled.
385 isl(4) and cyapa(4) drivers now require a new driver,
386 chromebook_platform(4), to work properly on Chromebook-class hardware.
387 On other types of hardware the drivers may need to be configured using
388 device hints. Please see the corresponding manual pages for details.
391 Relocatable object files with the extension of .So have been renamed
392 to use an extension of .pico instead. The purpose of this change is
393 to avoid a name clash with shared libraries on case-insensitive file
394 systems. On those file systems, foo.So is the same file as foo.so.
397 The releng/11.0 branch has been created from stable/11@r303970.
400 The stable/11 branch has been created from head@r302406.
403 The libc stub for the pipe(2) system call has been replaced with
404 a wrapper that calls the pipe2(2) system call and the pipe(2)
405 system call is now only implemented by the kernels that include
406 "options COMPAT_FREEBSD10" in their config file (this is the
407 default). Users should ensure that this option is enabled in
408 their kernel or upgrade userspace to r302092 before upgrading their
412 CAM will now strip leading spaces from SCSI disks' serial numbers.
413 This will effect users who create UFS filesystems on SCSI disks using
414 those disk's diskid device nodes. For example, if /etc/fstab
415 previously contained a line like
416 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should
417 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom
418 transforms like gmirror may also be affected. ZFS users should
422 The bitstring(3) API has been updated with new functionality and
423 improved performance. But it is binary-incompatible with the old API.
424 Objects built with the new headers may not be linked against objects
425 built with the old headers.
428 The brk and sbrk functions have been removed from libc on arm64.
429 Binutils from ports has been updated to not link to these
430 functions and should be updated to the latest version before
431 installing a new libc.
434 The armv6 port now defaults to hard float ABI. Limited support
435 for running both hardfloat and soft float on the same system
436 is available using the libraries installed with -DWITH_LIBSOFT.
437 This has only been tested as an upgrade path for installworld
438 and packages may fail or need manual intervention to run. New
439 packages will be needed.
441 To update an existing self-hosted armv6hf system, you must add
442 TARGET_ARCH=armv6 on the make command line for both the build
443 and the install steps.
446 Kernel modules compiled outside of a kernel build now default to
447 installing to /boot/modules instead of /boot/kernel. Many kernel
448 modules built this way (such as those in ports) already overrode
449 KMODDIR explicitly to install into /boot/modules. However,
450 manually building and installing a module from /sys/modules will
451 now install to /boot/modules instead of /boot/kernel.
454 The CAM I/O scheduler has been committed to the kernel. There should be
455 no user visible impact. This does enable NCQ Trim on ada SSDs. While the
456 list of known rogues that claim support for this but actually corrupt
457 data is believed to be complete, be on the lookout for data
458 corruption. The known rogue list is believed to be complete:
460 o Crucial MX100, M550 drives with MU01 firmware.
461 o Micron M510 and M550 drives with MU01 firmware.
462 o Micron M500 prior to MU07 firmware
463 o Samsung 830, 840, and 850 all firmwares
464 o FCCT M500 all firmwares
466 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware
467 with working NCQ TRIM. For Micron branded drives, see your sales rep for
468 updated firmware. Black listed drives will work correctly because these
469 drives work correctly so long as no NCQ TRIMs are sent to them. Given
470 this list is the same as found in Linux, it's believed there are no
471 other rogues in the market place. All other models from the above
474 To be safe, if you are at all concerned, you can quirk each of your
475 drives to prevent NCQ from being sent by setting:
476 kern.cam.ada.X.quirks="0x2"
477 in loader.conf. If the drive requires the 4k sector quirk, set the
481 The FAST_DEPEND build option has been removed and its functionality is
482 now the one true way. The old mkdep(1) style of 'make depend' has
483 been removed. See 20160311 for further details.
486 Resource range types have grown from unsigned long to uintmax_t. All
487 drivers, and anything using libdevinfo, need to be recompiled.
490 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree
491 builds. It no longer runs mkdep(1) during 'make depend', and the
492 'make depend' stage can safely be skipped now as it is auto ran
493 when building 'make all' and will generate all SRCS and DPSRCS before
494 building anything else. Dependencies are gathered at compile time with
495 -MF flags kept in separate .depend files per object file. Users should
496 run 'make cleandepend' once if using -DNO_CLEAN to clean out older
500 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into
501 kernel modules. Therefore, if you load any kernel modules at boot time,
502 please install the boot loaders after you install the kernel, but before
506 make kernel KERNCONF=YOUR_KERNEL_HERE
507 make -C sys/boot install
508 <reboot in single user>
510 Then follow the usual steps, described in the General Notes section,
514 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please
515 see the 20141231 entry below for information about prerequisites and
516 upgrading, if you are not already using clang 3.5.0 or higher.
519 The AIO subsystem is now a standard part of the kernel. The
520 VFS_AIO kernel option and aio.ko kernel module have been removed.
521 Due to stability concerns, asynchronous I/O requests are only
522 permitted on sockets and raw disks by default. To enable
523 asynchronous I/O requests on all file types, set the
524 vfs.aio.enable_unsafe sysctl to a non-zero value.
527 The ELF object manipulation tool objcopy is now provided by the
528 ELF Tool Chain project rather than by GNU binutils. It should be a
529 drop-in replacement, with the addition of arm64 support. The
530 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set
531 to obtain the GNU version if necessary.
534 Building ZFS pools on top of zvols is prohibited by default. That
535 feature has never worked safely; it's always been prone to deadlocks.
536 Using a zvol as the backing store for a VM guest's virtual disk will
537 still work, even if the guest is using ZFS. Legacy behavior can be
538 restored by setting vfs.zfs.vol.recursive=1.
541 The NONE and HPN patches has been removed from OpenSSH. They are
542 still available in the security/openssh-portable port.
545 With the addition of ypldap(8), a new _ypldap user is now required
546 during installworld. "mergemaster -p" can be used to add the user
547 prior to installworld, as documented in the handbook.
550 The tftp loader (pxeboot) now uses the option root-path directive. As a
551 consequence it no longer looks for a pxeboot.4th file on the tftp
552 server. Instead it uses the regular /boot infrastructure as with the
556 The code to start recording plug and play data into the modules has
557 been committed. While the old tools will properly build a new kernel,
558 a number of warnings about "unknown metadata record 4" will be produced
559 for an older kldxref. To avoid such warnings, make sure to rebuild
560 the kernel toolchain (or world). Make sure that you have r292078 or
561 later when trying to build 292077 or later before rebuilding.
564 Debug data files are now built by default with 'make buildworld' and
565 installed with 'make installworld'. This facilitates debugging but
566 requires more disk space both during the build and for the installed
567 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes
571 r291527 changed the internal interface between the nfsd.ko and
572 nfscommon.ko modules. As such, they must both be upgraded to-gether.
573 __FreeBSD_version has been bumped because of this.
576 Add support for unicode collation strings leads to a change of
577 order of files listed by ls(1) for example. To get back to the old
578 behaviour, set LC_COLLATE environment variable to "C".
580 Databases administrators will need to reindex their databases given
581 collation results will be different.
583 Due to a bug in install(1) it is recommended to remove the ancient
584 locales before running make installworld.
586 rm -rf /usr/share/locale/*
589 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring
590 libcrypto.so.7 or libssl.so.7 must be recompiled.
593 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0.
594 Kernel modules isp_2400_multi and isp_2500_multi were removed and
595 should be replaced with isp_2400 and isp_2500 modules respectively.
598 The build previously allowed using 'make -n' to not recurse into
599 sub-directories while showing what commands would be executed, and
600 'make -n -n' to recursively show commands. Now 'make -n' will recurse
601 and 'make -N' will not.
604 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster
605 and etcupdate will now use this file. A custom sendmail.cf is now
606 updated via this mechanism rather than via installworld. If you had
607 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may
608 want to remove the exclusion or change it to "always install".
609 /etc/mail/sendmail.cf is now managed the same way regardless of
610 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using
611 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior.
614 Compatibility shims for legacy ATA device names have been removed.
615 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases
616 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.*
617 environment variables, /dev/ad* and /dev/ar* symbolic links.
620 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0.
621 Please see the 20141231 entry below for information about prerequisites
622 and upgrading, if you are not already using clang 3.5.0 or higher.
625 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/,
626 and renamed from .symbols to .debug. This reduces the size requirements
627 on the boot partition or file system and provides consistency with
628 userland debug files.
630 When using the supported kernel installation method the
631 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old)
632 as is done with /boot/kernel.
634 Developers wishing to maintain the historical behavior of installing
635 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5).
638 The wireless drivers had undergone changes that remove the 'parent
639 interface' from the ifconfig -l output. The rc.d network scripts
640 used to check presence of a parent interface in the list, so old
641 scripts would fail to start wireless networking. Thus, etcupdate(3)
642 or mergemaster(8) run is required after kernel update, to update your
643 rc.d scripts in /etc.
646 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl'
647 These configurations are now automatically interpreted as
648 'scrub fragment reassemble'.
651 Kernel-loadable modules for the random(4) device are back. To use
652 them, the kernel must have
655 options RANDOM_LOADABLE
657 kldload(8) can then be used to load random_fortuna.ko
658 or random_yarrow.ko. Please note that due to the indirect
659 function calls that the loadable modules need to provide,
660 the build-in variants will be slightly more efficient.
662 The random(4) kernel option RANDOM_DUMMY has been retired due to
663 unpopularity. It was not all that useful anyway.
666 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired.
667 Control over building the ELF Tool Chain tools is now provided by
668 the WITHOUT_TOOLCHAIN knob.
671 The polarity of Pulse Per Second (PPS) capture events with the
672 uart(4) driver has been corrected. Prior to this change the PPS
673 "assert" event corresponded to the trailing edge of a positive PPS
674 pulse and the "clear" event was the leading edge of the next pulse.
676 As the width of a PPS pulse in a typical GPS receiver is on the
677 order of 1 millisecond, most users will not notice any significant
678 difference with this change.
680 Anyone who has compensated for the historical polarity reversal by
681 configuring a negative offset equal to the pulse width will need to
682 remove that workaround.
685 The default group assigned to /dev/dri entries has been changed
686 from 'wheel' to 'video' with the id of '44'. If you want to have
687 access to the dri devices please add yourself to the video group
690 # pw groupmod video -m $USER
693 The menu.rc and loader.rc files will now be replaced during
694 upgrades. Please migrate local changes to menu.rc.local and
695 loader.rc.local instead.
698 GNU Binutils versions of addr2line, c++filt, nm, readelf, size,
699 strings and strip have been removed. The src.conf(5) knob
700 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools.
703 As ZFS requires more kernel stack pages than is the default on some
704 architectures e.g. i386, it now warns if KSTACK_PAGES is less than
705 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing).
707 Please consider using 'options KSTACK_PAGES=X' where X is greater
708 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations.
711 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0
712 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by
713 default, i.e., they will not contain "::". For example, instead
714 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet
715 to have a more specific match, such as different map entries for
716 IPv6:0:0 vs IPv6:0. This change requires that configuration
717 data (including maps, files, classes, custom ruleset, etc.) must
718 use the same format, so make certain such configuration data is
719 upgrading. As a very simple check search for patterns like
720 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old
721 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or
722 the cf option UseCompressedIPv6Addresses.
725 The default kernel entropy-processing algorithm is now
726 Fortuna, replacing Yarrow.
728 Assuming you have 'device random' in your kernel config
729 file, the configurations allow a kernel option to override
730 this default. You may choose *ONE* of:
732 options RANDOM_YARROW # Legacy /dev/random algorithm.
733 options RANDOM_DUMMY # Blocking-only driver.
735 If you have neither, you get Fortuna. For most people,
736 read no further, Fortuna will give a /dev/random that works
737 like it always used to, and the difference will be irrelevant.
739 If you remove 'device random', you get *NO* kernel-processed
740 entropy at all. This may be acceptable to folks building
741 embedded systems, but has complications. Carry on reading,
742 and it is assumed you know what you need.
744 *PLEASE* read random(4) and random(9) if you are in the
745 habit of tweaking kernel configs, and/or if you are a member
746 of the embedded community, wanting specific and not-usual
747 behaviour from your security subsystems.
749 NOTE!! If you use RANDOM_DUMMY and/or have no 'device
750 random', you will NOT have a functioning /dev/random, and
751 many cryptographic features will not work, including SSH.
752 You may also find strange behaviour from the random(3) set
753 of library functions, in particular sranddev(3), srandomdev(3)
754 and arc4random(3). The reason for this is that the KERN_ARND
755 sysctl only returns entropy if it thinks it has some to
756 share, and with RANDOM_DUMMY or no 'device random' this
760 An additional fix for the issue described in the 20150614 sendmail
761 entry below has been been committed in revision 284717.
764 FreeBSD's old make (fmake) has been removed from the system. It is
765 available as the devel/fmake port or via pkg install fmake.
768 The fix for the issue described in the 20150614 sendmail entry
769 below has been been committed in revision 284436. The work
770 around described in that entry is no longer needed unless the
771 default setting is overridden by a confDH_PARAMETERS configuration
772 setting of '5' or pointing to a 512 bit DH parameter file.
775 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from
776 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf
777 and devel/kyua to version 0.20+ and adjust any calling code to work
778 with Kyuafile and kyua.
781 The import of openssl to address the FreeBSD-SA-15:10.openssl
782 security advisory includes a change which rejects handshakes
783 with DH parameters below 768 bits. sendmail releases prior
784 to 8.15.2 (not yet released), defaulted to a 512 bit
785 DH parameter setting for client connections. To work around
786 this interoperability, sendmail can be configured to use a
787 2048 bit DH parameter by:
789 1. Edit /etc/mail/`hostname`.mc
790 2. If a setting for confDH_PARAMETERS does not exist or
791 exists and is set to a string beginning with '5',
793 3. If a setting for confDH_PARAMETERS exists and is set to
794 a file path, create a new file with:
795 openssl dhparam -out /path/to/file 2048
796 4. Rebuild the .cf file:
797 cd /etc/mail/; make; make install
799 cd /etc/mail/; make restart
801 A sendmail patch is coming, at which time this file will be
805 Generation of legacy formatted entries have been disabled by default
806 in pwd_mkdb(8), as all base system consumers of the legacy formatted
807 entries were converted to use the new format by default when the new,
808 machine independent format have been added and supported since FreeBSD
811 Please see the pwd_mkdb(8) manual page for further details.
814 Clang and llvm have been upgraded to 3.6.1 release. Please see the
815 20141231 entry below for information about prerequisites and upgrading,
816 if you are not already using 3.5.0 or higher.
819 TI platform code switched to using vendor DTS files and this update
820 may break existing systems running on Beaglebone, Beaglebone Black,
823 - dtb files should be regenerated/reinstalled. Filenames are the
824 same but content is different now
825 - GPIO addressing was changed, now each GPIO bank (32 pins per bank)
826 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old
827 addressing scheme is now pin 25 on /dev/gpioc3.
828 - Pandaboard: /etc/ttys should be updated, serial console device is
829 now /dev/ttyu2, not /dev/ttyu0
832 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim.
833 If you need the GNU extension from groff soelim(1), install groff
834 from package: pkg install groff, or via ports: textproc/groff.
837 chmod, chflags, chown and chgrp now affect symlinks in -R mode as
838 defined in symlink(7); previously symlinks were silently ignored.
841 The const qualifier has been removed from iconv(3) to comply with
842 POSIX. The ports tree is aware of this from r384038 onwards.
845 Libraries specified by LIBADD in Makefiles must have a corresponding
846 DPADD_<lib> variable to ensure correct dependencies. This is now
847 enforced in src.libnames.mk.
850 From legacy ata(4) driver was removed support for SATA controllers
851 supported by more functional drivers ahci(4), siis(4) and mvs(4).
852 Kernel modules ataahci and ataadaptec were removed completely,
853 replaced by ahci and mvs modules respectively.
856 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see
857 the 20141231 entry below for information about prerequisites and
858 upgrading, if you are not already using 3.5.0 or higher.
861 The 32-bit PowerPC kernel has been changed to a position-independent
862 executable. This can only be booted with a version of loader(8)
863 newer than January 31, 2015, so make sure to update both world and
864 kernel before rebooting.
867 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014),
868 but before r278950, the RNG was not seeded properly. Immediately
869 upgrade the kernel to r278950 or later and regenerate any keys (e.g.
870 ssh keys or openssl keys) that were generated w/ a kernel from that
871 range. This does not affect programs that directly used /dev/random
872 or /dev/urandom. All userland uses of arc4random(3) are affected.
875 The autofs(4) ABI was changed in order to restore binary compatibility
876 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work
880 The powerpc64 kernel has been changed to a position-independent
881 executable. This can only be booted with a new version of loader(8),
882 so make sure to update both world and kernel before rebooting.
885 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix
886 only release, no new features have been added. Please see the 20141231
887 entry below for information about prerequisites and upgrading, if you
888 are not already using 3.5.0.
891 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now
892 taken from the ELF Tool Chain project rather than GNU binutils. They
893 should be drop-in replacements, with the addition of arm64 support.
894 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the
895 binutils tools, if necessary. See 20150805 for updated information.
898 The default Unbound configuration now enables remote control
899 using a local socket. Users who have already enabled the
900 local_unbound service should regenerate their configuration
901 by running "service local_unbound setup" as root.
904 The GNU texinfo and GNU info pages have been removed.
905 To be able to view GNU info pages please install texinfo from ports.
908 Clang, llvm and lldb have been upgraded to 3.5.0 release.
910 As of this release, a prerequisite for building clang, llvm and lldb is
911 a C++11 capable compiler and C++11 standard library. This means that to
912 be able to successfully build the cross-tools stage of buildworld, with
913 clang as the bootstrap compiler, your system compiler or cross compiler
914 should either be clang 3.3 or later, or gcc 4.8 or later, and your
915 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or
918 On any standard FreeBSD 10.x or 11.x installation, where clang and
919 libc++ are on by default (that is, on x86 or arm), this should work out
922 On 9.x installations where clang is enabled by default, e.g. on x86 and
923 powerpc, libc++ will not be enabled by default, so libc++ should be
924 built (with clang) and installed first. If both clang and libc++ are
925 missing, build clang first, then use it to build libc++.
927 On 8.x and earlier installations, upgrade to 9.x first, and then follow
928 the instructions for 9.x above.
930 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by
931 default, and do not build clang.
933 Many embedded systems are resource constrained, and will not be able to
934 build clang in a reasonable time, or in some cases at all. In those
935 cases, cross building bootable systems on amd64 is a workaround.
937 This new version of clang introduces a number of new warnings, of which
938 the following are most likely to appear:
942 This warns in two cases, for both C and C++:
943 * When the code is trying to take the absolute value of an unsigned
944 quantity, which is effectively a no-op, and almost never what was
945 intended. The code should be fixed, if at all possible. If you are
946 sure that the unsigned quantity can be safely cast to signed, without
947 loss of information or undefined behavior, you can add an explicit
948 cast, or disable the warning.
950 * When the code is trying to take an absolute value, but the called
951 abs() variant is for the wrong type, which can lead to truncation.
952 If you want to disable the warning instead of fixing the code, please
953 make sure that truncation will not occur, or it might lead to unwanted
956 -Wtautological-undefined-compare and
957 -Wundefined-bool-conversion
959 These warn when C++ code is trying to compare 'this' against NULL, while
960 'this' should never be NULL in well-defined C++ code. However, there is
961 some legacy (pre C++11) code out there, which actively abuses this
962 feature, which was less strictly defined in previous C++ versions.
964 Squid and openjdk do this, for example. The warning can be turned off
965 for C++98 and earlier, but compiling the code in C++11 mode might result
966 in unexpected behavior; for example, the parts of the program that are
967 unreachable could be optimized away.
970 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER)
971 kernel sources have been removed. The .h files remain, since some
972 utilities include them. This will need to be fixed later.
973 If "mount -t oldnfs ..." is attempted, it will fail.
974 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used,
975 the utilities will report errors.
978 The handling of LOCAL_LIB_DIRS has been altered to skip addition of
979 directories to top level SUBDIR variable when their parent
980 directory is included in LOCAL_DIRS. Users with build systems with
981 such hierarchies and without SUBDIR entries in the parent
982 directory Makefiles should add them or add the directories to
986 faith(4) and faithd(8) have been removed from the base system. Faith
987 has been obsolete for a very long time.
990 vt(4), the new console driver, is enabled by default. It brings
991 support for Unicode and double-width characters, as well as
992 support for UEFI and integration with the KMS kernel video
995 You may need to update your console settings in /etc/rc.conf,
996 most probably the keymap. During boot, /etc/rc.d/syscons will
997 indicate what you need to do.
999 vt(4) still has issues and lacks some features compared to
1000 syscons(4). See the wiki for up-to-date information:
1001 https://wiki.freebsd.org/Newcons
1003 If you want to keep using syscons(4), you can do so by adding
1004 the following line to /boot/loader.conf:
1008 pjdfstest has been integrated into kyua as an opt-in test suite.
1009 Please see share/doc/pjdfstest/README for more details on how to
1013 gperf has been removed from the base system for architectures
1014 that use clang. Ports that require gperf will obtain it from the
1018 pjdfstest has been moved from tools/regression/pjdfstest to
1022 At svn r271982, The default linux compat kernel ABI has been adjusted
1023 to 2.6.18 in support of the linux-c6 compat ports infrastructure
1024 update. If you wish to continue using the linux-f10 compat ports,
1025 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are
1026 encouraged to update their linux-compat packages to linux-c6 during
1027 their next update cycle.
1030 The ofwfb driver, used to provide a graphics console on PowerPC when
1031 using vt(4), no longer allows mmap() of all physical memory. This
1032 will prevent Xorg on PowerPC with some ATI graphics cards from
1033 initializing properly unless x11-servers/xorg-server is updated to
1037 The xdev targets have been converted to using TARGET and
1038 TARGET_ARCH instead of XDEV and XDEV_ARCH.
1041 The default unbound configuration has been modified to address
1042 issues with reverse lookups on networks that use private
1043 address ranges. If you use the local_unbound service, run
1044 "service local_unbound setup" as root to regenerate your
1045 configuration, then "service local_unbound reload" to load the
1049 The GNU texinfo and GNU info pages are not built and installed
1050 anymore, WITH_INFO knob has been added to allow to built and install
1052 UPDATE: see 20150102 entry on texinfo's removal
1055 The GNU readline library is now an INTERNALLIB - that is, it is
1056 statically linked into consumers (GDB and variants) in the base
1057 system, and the shared library is no longer installed. The
1058 devel/readline port is available for third party software that
1062 The Itanium architecture (ia64) has been removed from the list of
1063 known architectures. This is the first step in the removal of the
1067 Commit r268115 has added NFSv4.1 server support, merged from
1068 projects/nfsv4.1-server. Since this includes changes to the
1069 internal interfaces between the NFS related modules, a full
1070 build of the kernel and modules will be necessary.
1071 __FreeBSD_version has been bumped.
1074 The WITHOUT_VT_SUPPORT kernel config knob has been renamed
1075 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning
1076 which differs from the behaviour controlled by this knob.)
1079 Maximal length of the serial number in CTL was increased from 16 to
1080 64 chars, that breaks ABI. All CTL-related tools, such as ctladm
1081 and ctld, need to be rebuilt to work with a new kernel.
1084 The libatf-c and libatf-c++ major versions were downgraded to 0 and
1085 1 respectively to match the upstream numbers. They were out of
1086 sync because, when they were originally added to FreeBSD, the
1087 upstream versions were not respected. These libraries are private
1088 and not yet built by default, so renumbering them should be a
1089 non-issue. However, unclean source trees will yield broken test
1090 programs once the operator executes "make delete-old-libs" after a
1091 "make installworld".
1093 Additionally, the atf-sh binary was made private by moving it into
1094 /usr/libexec/. Already-built shell test programs will keep the
1095 path to the old binary so they will break after "make delete-old"
1098 If you are using WITH_TESTS=yes (not the default), wipe the object
1099 tree and rebuild from scratch to prevent spurious test failures.
1100 This is only needed once: the misnumbered libraries and misplaced
1101 binaries have been added to OptionalObsoleteFiles.inc so they will
1102 be removed during a clean upgrade.
1105 Clang and llvm have been upgraded to 3.4.1 release.
1108 We bogusly installed src.opts.mk in /usr/share/mk. This file should
1109 be removed to avoid issues in the future (and has been added to
1113 /etc/src.conf now affects only builds of the FreeBSD src tree. In the
1114 past, it affected all builds that used the bsd.*.mk files. The old
1115 behavior was a bug, but people may have relied upon it. To get this
1116 behavior back, you can .include /etc/src.conf from /etc/make.conf
1117 (which is still global and isn't changed). This also changes the
1118 behavior of incremental builds inside the tree of individual
1119 directories. Set MAKESYSPATH to ".../share/mk" to do that.
1120 Although this has survived make universe and some upgrade scenarios,
1121 other upgrade scenarios may have broken. At least one form of
1122 temporary breakage was fixed with MAKESYSPATH settings for buildworld
1123 as well... In cases where MAKESYSPATH isn't working with this
1124 setting, you'll need to set it to the full path to your tree.
1126 One side effect of all this cleaning up is that bsd.compiler.mk
1127 is no longer implicitly included by bsd.own.mk. If you wish to
1128 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk
1132 The lindev device has been removed since /dev/full has been made a
1133 standard device. __FreeBSD_version has been bumped.
1136 The knob WITHOUT_VI was added to the base system, which controls
1137 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1)
1138 in order to reorder files share/termcap and didn't build ex(1) as a
1139 build tool, so building/installing with WITH_VI is highly advised for
1140 build hosts for older releases.
1142 This issue has been fixed in stable/9 and stable/10 in r277022 and
1143 r276991, respectively.
1146 The YES_HESIOD knob has been removed. It has been obsolete for
1147 a decade. Please move to using WITH_HESIOD instead or your builds
1148 will silently lack HESIOD.
1151 The uart(4) driver has been changed with respect to its handling
1152 of the low-level console. Previously the uart(4) driver prevented
1153 any process from changing the baudrate or the CLOCAL and HUPCL
1154 control flags. By removing the restrictions, operators can make
1155 changes to the serial console port without having to reboot.
1156 However, when getty(8) is started on the serial device that is
1157 associated with the low-level console, a misconfigured terminal
1158 line in /etc/ttys will now have a real impact.
1159 Before upgrading the kernel, make sure that /etc/ttys has the
1160 serial console device configured as 3wire without baudrate to
1161 preserve the previous behaviour. E.g:
1162 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure
1165 Support for libwrap (TCP wrappers) in rpcbind was disabled by default
1166 to improve performance. To re-enable it, if needed, run rpcbind
1167 with command line option -W.
1170 Switched back to the GPL dtc compiler due to updates in the upstream
1171 dts files not being supported by the BSDL dtc compiler. You will need
1172 to rebuild your kernel toolchain to pick up the new compiler. Core dumps
1173 may result while building dtb files during a kernel build if you fail
1174 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler.
1177 Clang and llvm have been upgraded to 3.4 release.
1180 The nve(4) driver has been removed. Please use the nfe(4) driver
1181 for NVIDIA nForce MCP Ethernet adapters instead.
1184 An ABI incompatibility crept into the libc++ 3.4 import in r261283.
1185 This could cause certain C++ applications using shared libraries built
1186 against the previous version of libc++ to crash. The incompatibility
1187 has now been fixed, but any C++ applications or shared libraries built
1188 between r261283 and r261801 should be recompiled.
1191 OpenSSH will now ignore errors caused by kernel lacking of Capsicum
1192 capability mode support. Please note that enabling the feature in
1193 kernel is still highly recommended.
1196 OpenSSH is now built with sandbox support, and will use sandbox as
1197 the default privilege separation method. This requires Capsicum
1198 capability mode support in kernel.
1201 The libelf and libdwarf libraries have been updated to newer
1202 versions from upstream. Shared library version numbers for
1203 these two libraries were bumped. Any ports or binaries
1204 requiring these two libraries should be recompiled.
1205 __FreeBSD_version is bumped to 1100006.
1208 If a Makefile in a tests/ directory was auto-generating a Kyuafile
1209 instead of providing an explicit one, this would prevent such
1210 Makefile from providing its own Kyuafile in the future during
1211 NO_CLEAN builds. This has been fixed in the Makefiles but manual
1212 intervention is needed to clean an objdir if you use NO_CLEAN:
1213 # find /usr/obj -name Kyuafile | xargs rm -f
1216 The behavior of gss_pseudo_random() for the krb5 mechanism
1217 has changed, for applications requesting a longer random string
1218 than produced by the underlying enctype's pseudo-random() function.
1219 In particular, the random string produced from a session key of
1220 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will
1221 be different at the 17th octet and later, after this change.
1222 The counter used in the PRF+ construction is now encoded as a
1223 big-endian integer in accordance with RFC 4402.
1224 __FreeBSD_version is bumped to 1100004.
1227 The WITHOUT_ATF build knob has been removed and its functionality
1228 has been subsumed into the more generic WITHOUT_TESTS. If you were
1229 using the former to disable the build of the ATF libraries, you
1230 should change your settings to use the latter.
1233 The default version of mtree is nmtree which is obtained from
1234 NetBSD. The output is generally the same, but may vary
1235 slightly. If you found you need identical output adding
1236 "-F freebsd9" to the command line should do the trick. For the
1237 time being, the old mtree is available as fmtree.
1240 libbsdyml has been renamed to libyaml and moved to /usr/lib/private.
1241 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg
1242 1.1.4_8 and verify bsdyml not linked in, before running "make
1244 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean
1246 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml
1249 The stable/10 branch has been created in subversion from head
1253 The rc.d/jail script has been updated to support jail(8)
1254 configuration file. The "jail_<jname>_*" rc.conf(5) variables
1255 for per-jail configuration are automatically converted to
1256 /var/run/jail.<jname>.conf before the jail(8) utility is invoked.
1257 This is transparently backward compatible. See below about some
1258 incompatibilities and rc.conf(5) manual page for more details.
1260 These variables are now deprecated in favor of jail(8) configuration
1261 file. One can use "rc.d/jail config <jname>" command to generate
1262 a jail(8) configuration file in /var/run/jail.<jname>.conf without
1263 running the jail(8) utility. The default pathname of the
1264 configuration file is /etc/jail.conf and can be specified by
1265 using $jail_conf or $jail_<jname>_conf variables.
1267 Please note that jail_devfs_ruleset accepts an integer at
1268 this moment. Please consider to rewrite the ruleset name
1272 BIND has been removed from the base system. If all you need
1273 is a local resolver, simply enable and start the local_unbound
1274 service instead. Otherwise, several versions of BIND are
1275 available in the ports tree. The dns/bind99 port is one example.
1277 With this change, nslookup(1) and dig(1) are no longer in the base
1278 system. Users should instead use host(1) and drill(1) which are
1279 in the base system. Alternatively, nslookup and dig can
1280 be obtained by installing the dns/bind-tools port.
1283 With the addition of unbound(8), a new unbound user is now
1284 required during installworld. "mergemaster -p" can be used to
1285 add the user prior to installworld, as documented in the handbook.
1288 OpenSSH is now built with DNSSEC support, and will by default
1289 silently trust signed SSHFP records. This can be controlled with
1290 the VerifyHostKeyDNS client configuration setting. DNSSEC support
1291 can be disabled entirely with the WITHOUT_LDNS option in src.conf.
1294 The GNU Compiler Collection and C++ standard library (libstdc++)
1295 are no longer built by default on platforms where clang is the system
1296 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX
1297 options in src.conf.
1300 The PROCDESC kernel option is now part of the GENERIC kernel
1301 configuration and is required for the rwhod(8) to work.
1302 If you are using custom kernel configuration, you should include
1306 The API and ABI related to the Capsicum framework was modified
1307 in backward incompatible way. The userland libraries and programs
1308 have to be recompiled to work with the new kernel. This includes the
1309 following libraries and programs, but the whole buildworld is
1310 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl,
1311 kdump, procstat, rwho, rwhod, uniq.
1314 AES-NI intrinsic support has been added to gcc. The AES-NI module
1315 has been updated to use this support. A new gcc is required to build
1316 the aesni module on both i386 and amd64.
1319 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices.
1320 Thus "device padlock_rng" and "device rdrand_rng" should be
1321 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG".
1324 WITH_ICONV has been split into two feature sets. WITH_ICONV now
1325 enables just the iconv* functionality and is now on by default.
1326 WITH_LIBICONV_COMPAT enables the libiconv api and link time
1327 compatibility. Set WITHOUT_ICONV to build the old way.
1328 If you have been using WITH_ICONV before, you will very likely
1329 need to turn on WITH_LIBICONV_COMPAT.
1332 INVARIANTS option now enables DEBUG for code with OpenSolaris and
1333 Illumos origin, including ZFS. If you have INVARIANTS in your
1334 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG
1336 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS)
1337 locks if WITNESS option was set. Because that generated a lot of
1338 witness(9) reports and all of them were believed to be false
1339 positives, this is no longer done. New option OPENSOLARIS_WITNESS
1340 can be used to achieve the previous behavior.
1343 Timer values in IPv6 data structures now use time_uptime instead
1344 of time_second. Although this is not a user-visible functional
1345 change, userland utilities which directly use them---ndp(8),
1346 rtadvd(8), and rtsold(8) in the base system---need to be updated
1347 to r253970 or later.
1350 find -delete can now delete the pathnames given as arguments,
1351 instead of only files found below them or if the pathname did
1352 not contain any slashes. Formerly, the following error message
1355 find: -delete: <path>: relative path potentially not safe
1357 Deleting the pathnames given as arguments can be prevented
1358 without error messages using -mindepth 1 or by changing
1359 directory and passing "." as argument to find. This works in the
1360 old as well as the new version of find.
1363 Behavior of devfs rules path matching has been changed.
1364 Pattern is now always matched against fully qualified devfs
1365 path and slash characters must be explicitly matched by
1366 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs
1367 subdirectories must be reviewed.
1370 The default ARM ABI has changed to the ARM EABI. The old ABI is
1371 incompatible with the ARM EABI and all programs and modules will
1372 need to be rebuilt to work with a new kernel.
1374 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set.
1376 NOTE: Support for the old ABI will be removed in the future and
1377 users are advised to upgrade.
1380 pkg_install has been disconnected from the build if you really need it
1381 you should add WITH_PKGTOOLS in your src.conf(5).
1384 Most of network statistics structures were changed to be able
1385 keep 64-bits counters. Thus all tools, that work with networking
1386 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.)
1389 Fix a bug that allowed a tracing process (e.g. gdb) to write
1390 to a memory-mapped file in the traced process's address space
1391 even if neither the traced process nor the tracing process had
1392 write access to that file.
1395 CVS has been removed from the base system. An exact copy
1396 of the code is available from the devel/cvs port.
1399 Some people report the following error after the switch to bmake:
1401 make: illegal option -- J
1402 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable]
1404 *** [buildworld] Error code 2
1406 this likely due to an old instance of make in
1407 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE})
1408 which src/Makefile will use that blindly, if it exists, so if
1409 you see the above error:
1411 rm -rf `make -V MAKEPATH`
1416 Use bmake by default.
1417 Whereas before one could choose to build with bmake via
1418 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old
1419 make. The goal is to remove these knobs for 10-RELEASE.
1421 It is worth noting that bmake (like gmake) treats the command
1422 line as the unit of failure, rather than statements within the
1423 command line. Thus '(cd some/where && dosomething)' is safer
1424 than 'cd some/where; dosomething'. The '()' allows consistent
1425 behavior in parallel build.
1428 Fix a bug that allows NFS clients to issue READDIR on files.
1431 The WITHOUT_IDEA option has been removed because
1432 the IDEA patent expired.
1435 The sysctl which controls TRIM support under ZFS has been renamed
1436 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been
1440 The mergemaster command now uses the default MAKEOBJDIRPREFIX
1441 rather than creating it's own in the temporary directory in
1442 order allow access to bootstrapped versions of tools such as
1443 install and mtree. When upgrading from version of FreeBSD where
1444 the install command does not support -l, you will need to
1445 install a new mergemaster command if mergemaster -p is required.
1446 This can be accomplished with the command (cd src/usr.sbin/mergemaster
1450 Legacy ATA stack, disabled and replaced by new CAM-based one since
1451 FreeBSD 9.0, completely removed from the sources. Kernel modules
1452 atadisk and atapi*, user-level tools atacontrol and burncd are
1453 removed. Kernel option `options ATA_CAM` is now permanently enabled
1457 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2)
1458 and socketpair(2). Software, in particular Kerberos, may
1459 automatically detect and use these during building. The resulting
1460 binaries will not work on older kernels.
1463 CTL_DISABLE has also been added to the sparc64 GENERIC (for further
1464 information, see the respective 20130304 entry).
1467 Recent commits to callout(9) changed the size of struct callout,
1468 so the KBI is probably heavily disturbed. Also, some functions
1469 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced
1470 by macros. Every kernel module using it won't load, so rebuild
1473 The ctl device has been re-enabled in GENERIC for i386 and amd64,
1474 but does not initialize by default (because of the new CTL_DISABLE
1475 option) to save memory. To re-enable it, remove the CTL_DISABLE
1476 option from the kernel config file or set kern.cam.ctl.disable=0
1477 in /boot/loader.conf.
1480 The ctl device has been disabled in GENERIC for i386 and amd64.
1481 This was done due to the extra memory being allocated at system
1482 initialisation time by the ctl driver which was only used if
1483 a CAM target device was created. This makes a FreeBSD system
1484 unusable on 128MB or less of RAM.
1487 A new compression method (lz4) has been merged to -HEAD. Please
1488 refer to zpool-features(7) for more information.
1490 Please refer to the "ZFS notes" section of this file for information
1491 on upgrading boot ZFS pools.
1494 A BSD-licensed patch(1) variant has been added and is installed
1495 as bsdpatch, being the GNU version the default patch.
1496 To inverse the logic and use the BSD-licensed one as default,
1497 while having the GNU version installed as gnupatch, rebuild
1498 and install world with the WITH_BSD_PATCH knob set.
1501 Due to the use of the new -l option to install(1) during build
1502 and install, you must take care not to directly set the INSTALL
1503 make variable in your /etc/make.conf, /etc/src.conf, or on the
1504 command line. If you wish to use the -C flag for all installs
1505 you may be able to add INSTALL+=-C to /etc/make.conf or
1509 The install(1) option -M has changed meaning and now takes an
1510 argument that is a file or path to append logs to. In the
1511 unlikely event that -M was the last option on the command line
1512 and the command line contained at least two files and a target
1513 directory the first file will have logs appended to it. The -M
1514 option served little practical purpose in the last decade so its
1515 use is expected to be extremely rare.
1518 After switching to Clang as the default compiler some users of ZFS
1519 on i386 systems started to experience stack overflow kernel panics.
1520 Please consider using 'options KSTACK_PAGES=4' in such configurations.
1523 GEOM_LABEL now mangles label names read from file system metadata.
1524 Mangling affect labels containing spaces, non-printable characters,
1525 '%' or '"'. Device names in /etc/fstab and other places may need to
1529 By default, only the 10 most recent kernel dumps will be saved. To
1530 restore the previous behaviour (no limit on the number of kernel dumps
1531 stored in the dump directory) add the following line to /etc/rc.conf:
1536 With the addition of auditdistd(8), a new auditdistd user is now
1537 required during installworld. "mergemaster -p" can be used to
1538 add the user prior to installworld, as documented in the handbook.
1541 The sin6_scope_id member variable in struct sockaddr_in6 is now
1542 filled by the kernel before passing the structure to the userland via
1543 sysctl or routing socket. This means the KAME-specific embedded scope
1544 id in sin6_addr.s6_addr[2] is always cleared in userland application.
1545 This behavior can be controlled by net.inet6.ip6.deembed_scopeid.
1546 __FreeBSD_version is bumped to 1000025.
1549 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default.
1550 This means that the world and kernel will be compiled with clang
1551 and that clang will be installed as /usr/bin/cc, /usr/bin/c++,
1552 and /usr/bin/cpp. To disable this behavior and revert to building
1553 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions
1554 of current may need to bootstrap WITHOUT_CLANG first if the clang
1555 build fails (its compatibility window doesn't extend to the 9 stable
1559 The IPFIREWALL_FORWARD kernel option has been removed. Its
1560 functionality now turned on by default.
1563 The ZERO_COPY_SOCKET kernel option has been removed and
1564 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP.
1565 NB: SOCKET_SEND_COW uses the VM page based copy-on-write
1566 mechanism which is not safe and may result in kernel crashes.
1567 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current
1568 driver supports disposeable external page sized mbuf storage.
1569 Proper replacements for both zero-copy mechanisms are under
1570 consideration and will eventually lead to complete removal
1571 of the two kernel options.
1574 The IPv4 network stack has been converted to network byte
1575 order. The following modules need to be recompiled together
1576 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4),
1577 pf(4), ipfw(4), ng_ipfw(4), stf(4).
1580 Support for non-MPSAFE filesystems was removed from VFS. The
1581 VFS_VERSION was bumped, all filesystem modules shall be
1585 All the non-MPSAFE filesystems have been disconnected from
1586 the build. The full list includes: codafs, hpfs, ntfs, nwfs,
1587 portalfs, smbfs, xfs.
1590 The interface cloning API and ABI has changed. The following
1591 modules need to be recompiled together with kernel:
1592 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4),
1593 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4),
1594 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4).
1597 The sdhci driver was split in two parts: sdhci (generic SD Host
1598 Controller logic) and sdhci_pci (actual hardware driver).
1599 No kernel config modifications are required, but if you
1600 load sdhc as a module you must switch to sdhci_pci instead.
1603 Import the FUSE kernel and userland support into base system.
1606 The GNU sort(1) program has been removed since the BSD-licensed
1607 sort(1) has been the default for quite some time and no serious
1608 problems have been reported. The corresponding WITH_GNU_SORT
1612 The pfil(9) API/ABI for AF_INET family has been changed. Packet
1613 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled
1617 The net80211(4) ABI has been changed to allow for improved driver
1618 PS-POLL and power-save support. All wireless drivers need to be
1619 recompiled to work with the new kernel.
1622 The random(4) support for the VIA hardware random number
1623 generator (`PADLOCK') is no longer enabled unconditionally.
1624 Add the padlock_rng device in the custom kernel config if
1625 needed. The GENERIC kernels on i386 and amd64 do include the
1626 device, so the change only affects the custom kernel
1630 The pf(4) packet filter ABI has been changed. pfctl(8) and
1631 snmp_pf module need to be recompiled to work with new kernel.
1634 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged
1635 to -HEAD. Pools that have empty_bpobj in active state can not be
1636 imported read-write with ZFS implementations that do not support
1637 this feature. For more information read the zpool-features(5)
1641 The sparc64 ZFS loader has been changed to no longer try to auto-
1642 detect ZFS providers based on diskN aliases but now requires these
1643 to be explicitly listed in the OFW boot-device environment variable.
1646 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring
1647 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are
1648 configuration changes. Make sure to merge /etc/ssl/openssl.cnf.
1651 The following sysctls and tunables have been renamed for consistency
1652 with other variables:
1653 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered
1654 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered
1657 The sort utility has been replaced with BSD sort. For now, GNU sort
1658 is also available as "gnusort" or the default can be set back to
1659 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be
1660 installed as "bsdsort".
1663 A new version of ZFS (pool version 5000) has been merged to -HEAD.
1664 Starting with this version the old system of ZFS pool versioning
1665 is superseded by "feature flags". This concept enables forward
1666 compatibility against certain future changes in functionality of ZFS
1667 pools. The first read-only compatible "feature flag" for ZFS pools
1668 is named "com.delphix:async_destroy". For more information
1669 read the new zpool-features(5) manual page.
1670 Please refer to the "ZFS notes" section of this file for information
1671 on upgrading boot ZFS pools.
1674 The malloc(3) implementation embedded in libc now uses sources imported
1675 as contrib/jemalloc. The most disruptive API change is to
1676 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf,
1677 delete it prior to installworld, and optionally re-create it using the
1678 new format after rebooting. See malloc.conf(5) for details
1679 (specifically the TUNING section and the "opt.*" entries in the MALLCTL
1683 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb
1684 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is
1685 now spelled mips. This is to aid compatibility with third-party
1686 software that expects this naming scheme in uname(3). Little-endian
1687 settings are unchanged. If you are updating a big-endian mips64 machine
1688 from before this change, you may need to set MACHINE_ARCH=mips64 in
1689 your environment before the new build system will recognize your machine.
1692 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported
1696 Now unix domain sockets behave "as expected" on nullfs(5). Previously
1697 nullfs(5) did not pass through all behaviours to the underlying layer,
1698 as a result if we bound to a socket on the lower layer we could connect
1699 only to the lower path; if we bound to the upper layer we could connect
1700 only to the upper path. The new behavior is one can connect to both the
1701 lower and the upper paths regardless what layer path one binds to.
1704 The getifaddrs upgrade path broken with 20111215 has been restored.
1705 If you have upgraded in between 20111215 and 20120209 you need to
1706 recompile libc again with your kernel. You still need to recompile
1707 world to be able to configure CARP but this restriction already
1708 comes from 20111215.
1711 The set_rcvar() function has been removed from /etc/rc.subr. All
1712 base and ports rc.d scripts have been updated, so if you have a
1713 port installed with a script in /usr/local/etc/rc.d you can either
1714 hand-edit the rcvar= line, or reinstall the port.
1716 An easy way to handle the mass-update of /etc/rc.d:
1717 rm /etc/rc.d/* && mergemaster -i
1720 panic(9) now stops other CPUs in the SMP systems, disables interrupts
1721 on the current CPU and prevents other threads from running.
1722 This behavior can be reverted using the kern.stop_scheduler_on_panic
1724 The new behavior can be incompatible with kern.sync_on_panic.
1727 The carp(4) facility has been changed significantly. Configuration
1728 of the CARP protocol via ifconfig(8) has changed, as well as format
1729 of CARP events submitted to devd(8) has changed. See manual pages
1730 for more information. The arpbalance feature of carp(4) is currently
1731 not supported anymore.
1733 Size of struct in_aliasreq, struct in6_aliasreq has changed. User
1734 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8),
1735 need to be recompiled.
1738 The acpi_wmi(4) status device /dev/wmistat has been renamed to
1742 The option VFS_ALLOW_NONMPSAFE option has been added in order to
1743 explicitely support non-MPSAFE filesystems.
1744 It is on by default for all supported platform at this present
1748 The broken amd(4) driver has been replaced with esp(4) in the amd64,
1749 i386 and pc98 GENERIC kernel configuration files.
1752 sysinstall has been removed
1755 The stable/9 branch created in subversion. This corresponds to the
1756 RELENG_9 branch in CVS.
1762 Avoid using make -j when upgrading. While generally safe, there are
1763 sometimes problems using -j to upgrade. If your upgrade fails with
1764 -j, please try again without -j. From time to time in the past there
1765 have been problems using -j with buildworld and/or installworld. This
1766 is especially true when upgrading between "distant" versions (eg one
1767 that cross a major release boundary or several minor releases, or when
1768 several months have passed on the -current branch).
1770 Sometimes, obscure build problems are the result of environment
1771 poisoning. This can happen because the make utility reads its
1772 environment when searching for values for global variables. To run
1773 your build attempts in an "environmental clean room", prefix all make
1774 commands with 'env -i '. See the env(1) manual page for more details.
1776 When upgrading from one major version to another it is generally best
1777 to upgrade to the latest code in the currently installed branch first,
1778 then do an upgrade to the new branch. This is the best-tested upgrade
1779 path, and has the highest probability of being successful. Please try
1780 this approach before reporting problems with a major version upgrade.
1782 When upgrading a live system, having a root shell around before
1783 installing anything can help undo problems. Not having a root shell
1784 around can lead to problems if pam has changed too much from your
1785 starting point to allow continued authentication after the upgrade.
1787 This file should be read as a log of events. When a later event changes
1788 information of a prior event, the prior event should not be deleted.
1789 Instead, a pointer to the entry with the new information should be
1790 placed in the old entry. Readers of this file should also sanity check
1791 older entries before relying on them blindly. Authors of new entries
1792 should write them with this in mind.
1796 When upgrading the boot ZFS pool to a new version, always follow
1799 1.) recompile and reinstall the ZFS boot loader and boot block
1800 (this is part of "make buildworld" and "make installworld")
1802 2.) update the ZFS boot block on your boot drive
1804 The following example updates the ZFS boot block on the first
1805 partition (freebsd-boot) of a GPT partitioned drive ada0:
1806 "gpart bootcode -p /boot/gptzfsboot -i 1 ada0"
1808 Non-boot pools do not need these updates.
1812 If you are updating from a prior version of FreeBSD (even one just
1813 a few days old), you should follow this procedure. It is the most
1814 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
1816 make kernel-toolchain
1817 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
1818 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
1820 To test a kernel once
1821 ---------------------
1822 If you just want to boot a kernel once (because you are not sure
1823 if it works, or if you want to boot a known bad kernel to provide
1824 debugging information) run
1825 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
1826 nextboot -k testkernel
1828 To just build a kernel when you know that it won't mess you up
1829 --------------------------------------------------------------
1830 This assumes you are already running a CURRENT system. Replace
1831 ${arch} with the architecture of your machine (e.g. "i386",
1832 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc).
1834 cd src/sys/${arch}/conf
1835 config KERNEL_NAME_HERE
1836 cd ../compile/KERNEL_NAME_HERE
1841 If this fails, go to the "To build a kernel" section.
1843 To rebuild everything and install it on the current system.
1844 -----------------------------------------------------------
1845 # Note: sometimes if you are running current you gotta do more than
1846 # is listed here if you are upgrading from a really old current.
1848 <make sure you have good level 0 dumps>
1850 make kernel KERNCONF=YOUR_KERNEL_HERE
1852 <reboot in single user> [3]
1859 To cross-install current onto a separate partition
1860 --------------------------------------------------
1861 # In this approach we use a separate partition to hold
1862 # current's root, 'usr', and 'var' directories. A partition
1863 # holding "/", "/usr" and "/var" should be about 2GB in
1866 <make sure you have good level 0 dumps>
1869 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1870 <maybe newfs current's root partition>
1871 <mount current's root partition on directory ${CURRENT_ROOT}>
1872 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC
1873 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1874 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1875 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
1876 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1877 <reboot into current>
1878 <do a "native" rebuild/install as described in the previous section>
1879 <maybe install compatibility libraries from ports/misc/compat*>
1883 To upgrade in-place from stable to current
1884 ----------------------------------------------
1885 <make sure you have good level 0 dumps>
1887 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
1889 <reboot in single user> [3]
1896 Make sure that you've read the UPDATING file to understand the
1897 tweaks to various things you need. At this point in the life
1898 cycle of current, things change often and you are on your own
1899 to cope. The defaults can also change, so please read ALL of
1900 the UPDATING entries.
1902 Also, if you are tracking -current, you must be subscribed to
1903 freebsd-current@freebsd.org. Make sure that before you update
1904 your sources that you have read and understood all the recent
1905 messages there. If in doubt, please track -stable which has
1906 much fewer pitfalls.
1908 [1] If you have third party modules, such as vmware, you
1909 should disable them at this point so they don't crash your
1912 [3] From the bootblocks, boot -s, and then do
1917 adjkerntz -i # if CMOS is wall time
1918 Also, when doing a major release upgrade, it is required that
1919 you boot into single user mode to do the installworld.
1921 [4] Note: This step is non-optional. Failure to do this step
1922 can result in a significant reduction in the functionality of the
1923 system. Attempting to do it by hand is not recommended and those
1924 that pursue this avenue should read this file carefully, as well
1925 as the archives of freebsd-current and freebsd-hackers mailing lists
1926 for potential gotchas. The -U option is also useful to consider.
1927 See mergemaster(8) for more information.
1929 [5] Usually this step is a noop. However, from time to time
1930 you may need to do this if you get unknown user in the following
1931 step. It never hurts to do it all the time. You may need to
1932 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1933 install) after the buildworld before this step if you last updated
1934 from current before 20130425 or from -stable before 20130430.
1936 [6] This only deletes old files and directories. Old libraries
1937 can be deleted by "make delete-old-libs", but you have to make
1938 sure that no program is using those libraries anymore.
1940 [8] The new kernel must be able to run existing binaries used by
1941 an installworld. When upgrading across major versions, the new
1942 kernel's configuration must include the correct COMPAT_FREEBSD<n>
1943 option for existing binaries (e.g. COMPAT_FREEBSD11 to run 11.x
1944 binaries). Failure to do so may leave you with a system that is
1945 hard to boot to recover. A GENERIC kernel will include suitable
1946 compatibility options to run binaries from older branches.
1948 Make sure that you merge any new devices from GENERIC since the
1949 last time you updated your kernel config file.
1951 [9] When checking out sources, you must include the -P flag to have
1952 cvs prune empty directories.
1954 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1955 "?=" instead of the "=" assignment operator, so that buildworld can
1956 override the CPUTYPE if it needs to.
1958 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1959 not on the command line, or in /etc/make.conf. buildworld will
1960 warn if it is improperly defined.
1963 This file contains a list, in reverse chronological order, of major
1964 breakages in tracking -current. It is not guaranteed to be a complete
1965 list of such breakages, and only contains entries since September 23, 2011.
1966 If you need to see UPDATING entries from before that date, you will need
1967 to fetch an UPDATING file from an older FreeBSD release.
1969 Copyright information:
1971 Copyright 1998-2009 M. Warner Losh. All Rights Reserved.
1973 Redistribution, publication, translation and use, with or without
1974 modification, in full or in part, in any form or format of this
1975 document are permitted without further permission from the author.
1977 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1978 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1979 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1980 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1981 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1982 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1983 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1984 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1985 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1986 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1987 POSSIBILITY OF SUCH DAMAGE.
1989 Contact Warner Losh if you have any questions about your use of