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 http://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 to bootstrap to the tip of
16 stable/10, and then rebuild without this option. The bootstrap process from
17 older version of current is a bit fragile.
19 20161208 p27 FreeBSD-SA-16:37.libc [revised]
21 Fix regressions introduced by SA-16:37.libc.
23 20161206 p26 FreeBSD-SA-16:36.telnetd
25 FreeBSD-SA-16:38.bhyve
26 FreeBSD-EN-16:19.tzcode
27 FreeBSD-EN-16:20.tzdata
29 Fix possible login(1) argument injection in telnetd(8). [SA-16:36]
30 Fix link_ntoa(3) buffer overflow in libc. [SA-16:37]
31 Fix possible escape from bhyve(8) virtual machine. [SA-16:38]
32 Fix warnings about valid time zone abbreviations. [EN-16:19]
33 Update timezone database information. [EN-16:20]
35 20161102 p25 FreeBSD-SA-16:35.openssl
37 Fix OpenSSL remote DoS vulnerability. [SA-16:35]
39 20161025 p24 FreeBSD-SA-16:15.sysarch [revised]
41 Fix incorrect argument validation in sysarch(2). [SA-16:15]
43 20161010 p23 FreeBSD-SA-16:29.bspatch
44 FreeBSD-SA-16:30.portsnap
45 FreeBSD-SA-16:31.libarchive
47 Fix bspatch heap overflow vulnerability. [SA-16:29]
49 Fix multiple portsnap vulnerabilities. [SA-16:30]
51 Fix multiple libarchive vulnerabilities. [SA-16:31]
53 20160926 p22 FreeBSD-SA-16:26.openssl [revised]
55 Fix OpenSSL regression introduced in SA-16:26.
57 20160923 p21 FreeBSD-SA-16:26.openssl
59 Fix multiple OpenSSL vulnerabilitites.
61 20160725 p20 FreeBSD-SA-16:25.bspatch
62 FreeBSD-EN-16:09.freebsd-update
64 Fix bspatch heap overflow vulnerability. [SA-16:25]
66 Fix freebsd-update(8) support of FreeBSD 11.0 release
67 distribution. [EN-16:09]
69 20160604 p19 FreeBSD-SA-16:24.ntp
71 Fix multiple vulnerabilities of ntp.
73 20160531 p18 FreeBSD-SA-16:20.linux
74 FreeBSD-SA-16:21.43bsd
75 FreeBSD-SA-16:22.libarchive
77 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20]
78 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21]
79 Fix directory traversal in cpio(1). [SA-16:22]
81 20160517 p17 FreeBSD-SA-16:18.atkbd
82 FreeBSD-SA-16:19.sendmsg
84 Fix buffer overflow in keyboard driver. [SA-16:18]
86 Fix incorrect argument handling in sendmsg(2). [SA-16:19]
88 20160504 p16 FreeBSD-SA-16:17.openssl
92 Fix multiple OpenSSL vulnerabilitites. [SA-16:17]
94 Fix excessive latency in x86 IPI delivery. [EN-16:07]
96 Fix memory leak in ZFS. [EN-16:08]
98 20160429 p15 FreeBSD-SA-16:16.ntp
100 Fix multiple vulnerabilities of ntp.
102 20160316 p14 FreeBSD-SA-16:14.openssh-xauth
103 FreeBSD-SA-16:15.sysarch
104 FreeBSD-EN-16:04.hyperv
105 FreeBSD-EN-16:05.hv_netvsc
107 Fix OpenSSH xauth(1) command injection. [SA-16:14]
108 Fix incorrect argument validation in sysarch(2). [SA-16:15]
109 Fix Hyper-V KVP (Key-Value Pair) daemon indefinite sleep. [EN-16:04]
110 Fix hv_netvsc(4) incorrect TCP/IP checksums. [EN-16:05]
112 20160303 p13 FreeBSD-SA-16:12.openssl
114 Fix multiple vulnerabilities of OpenSSL.
116 20160130 p12 FreeBSD-SA-16:11.openssl
118 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11]
120 20160127 p11 FreeBSD-SA-16:09.ntp
121 FreeBSD-SA-16:10.linux
123 Fix multiple vulnerabilities of ntp. [SA-16:09]
125 Fix Linux compatibility layer issetugid(2) system call
126 vulnerability. [SA-16:10]
128 20160114 p10 FreeBSD-SA-16:07.openssh
130 Fix OpenSSH client information leak. [SA-16:07]
132 20160114 p9 FreeBSD-EN-16:01.filemon
134 FreeBSD-EN-16:03.yplib
135 FreeBSD-SA-16:01.sctp
137 FreeBSD-SA-16:03.linux
138 FreeBSD-SA-16:04.linux
140 FreeBSD-SA-16:06.bsnmpd
142 Fix multiple stability and locking problems in filemon(4). [EN-16:01]
143 Fix pf(4) generating bad TCP checksums. [EN-16:02]
144 Fix infinite loop in YP/NIS client library. [EN-16:03]
145 Fix remote denial of service in SCTP. [SA-16:01]
146 Update NTP to 4.2.8p5. [SA-16:02]
147 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03]
148 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04]
149 Fix crash in TCP MD5 signatures. [SA-16:05]
150 Fix insecure default permissions for snmpd.config. [SA-16:06]
152 20151205 p8 FreeBSD-SA-15:26.openssl
154 Fix multiple OpenSSL vulnerabilities. [SA-15:26]
156 20151104 p7 FreeBSD-SA-15:25.ntp [revised]
157 FreeBSD-EN-15:19.kqueue
160 Fix regression in ntpd(8) lacking support for RAWDCF reference
161 clock in 10.2-RELEASE-p6. [SA-15:25]
163 Fix kqueue write events never fired for files greater 2GB. [EN-15:19]
165 Fix applications exiting due to segmentation violation on a correct
166 memory address. [EN-15:20.vm]
168 20151026: p6 FreeBSD-SA-15:25.ntp
170 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4.
172 20151002: p5 FreeBSD-SA-15:24.rpcbind [revised]
173 Revised patch to address a regression that prevents NIS from working.
175 20150929: p4 FreeBSD-SA-15:24.rpcbind
177 Fix rpcbind(8) remote denial of service. [SA-15:24]
179 20150916: p3 FreeBSD-EN-15:16.pw
180 FreeBSD-EN-15:17.libc
183 Fix regression in pw(8) when creating numeric users or groups.
186 Fix libc handling of signals for multi-threaded processes.
189 Implement pubkey support for pkg(7) bootstrap. [EN-15:18]
191 20150825: p2 FreeBSD-SA-15:22.openssh
193 Fix OpenSSH multiple vulnerabilities. [SA-15:22]
195 Fix insufficient check of unsupported pkg(7) signature methods.
198 20150818: p1 FreeBSD-SA-15:20.expat
199 FreeBSD-EN-15:11.toolchain
200 FreeBSD-EN-15:12.netstat
201 FreeBSD-EN-15:13.vidcontrol
203 Fix multiple integer overflows in expat (libbsdxml) XML parser.
206 Fix make(1) syntax errors when upgrading from 9.x and earlier.
209 Fix incorrect netstat(1) data handling on 32-bit systems.
212 Allow size argument to vidcontrol(1) for syscons(4). [EN-15:13]
218 The default Unbound configuration now enables remote control
219 using a local socket. Users who have already enabled the
220 local_unbound service should regenerate their configuration
221 by running "service local_unbound setup" as root.
224 An additional fix for the issue described in the 20150614 sendmail
225 entry below has been been committed in revision 284786.
228 The fix for the issue described in the 20150614 sendmail entry
229 below has been been committed in revision 284485. The work
230 around described in that entry is no longer needed unless the
231 default setting is overridden by a confDH_PARAMETERS configuration
232 setting of '5' or pointing to a 512 bit DH parameter file.
235 The import of openssl to address the FreeBSD-SA-15:10.openssl
236 security advisory includes a change which rejects handshakes
237 with DH parameters below 768 bits. sendmail releases prior
238 to 8.15.2 (not yet released), defaulted to a 512 bit
239 DH parameter setting for client connections. To work around
240 this interoperability, sendmail can be configured to use a
241 2048 bit DH parameter by:
243 1. Edit /etc/mail/`hostname`.mc
244 2. If a setting for confDH_PARAMETERS does not exist or
245 exists and is set to a string beginning with '5',
247 3. If a setting for confDH_PARAMETERS exists and is set to
248 a file path, create a new file with:
249 openssl dhparam -out /path/to/file 2048
250 4. Rebuild the .cf file:
251 cd /etc/mail/; make; make install
253 cd /etc/mail/; make restart
255 A sendmail patch is coming, at which time this file will be
259 chmod, chflags, chown and chgrp now affect symlinks in -R mode as
260 defined in symlink(7); previously symlinks were silently ignored.
263 The const qualifier has been removed from iconv(3) to comply with
264 POSIX. The ports tree is aware of this from r384038 onwards.
267 At svn r275807, The default linux compat kernel ABI has been adjusted
268 to 2.6.18 in support of the linux-c6 compat ports infrastructure
269 update. If you wish to continue using the linux-f10 compat ports,
270 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are
271 encouraged to update their linux-compat packages to linux-c6 during
272 their next update cycle.
274 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports.
277 pjdfstest has been integrated into kyua as an opt-in test suite.
278 Please see share/doc/pjdfstest/README for a more details on how to
285 The ofwfb driver, used to provide a graphics console on PowerPC when
286 using vt(4), no longer allows mmap() of all of physical memory. This
287 will prevent Xorg on PowerPC with some ATI graphics cards from
288 initializing properly unless x11-servers/xorg-server is updated to
292 The libatf-c and libatf-c++ major versions were downgraded to 0 and
293 1 respectively to match the upstream numbers. They were out of
294 sync because, when they were originally added to FreeBSD, the
295 upstream versions were not respected. These libraries are private
296 and not yet built by default, so renumbering them should be a
297 non-issue. However, unclean source trees will yield broken test
298 programs once the operator executes "make delete-old-libs" after a
301 Additionally, the atf-sh binary was made private by moving it into
302 /usr/libexec/. Already-built shell test programs will keep the
303 path to the old binary so they will break after "make delete-old"
306 If you are using WITH_TESTS=yes (not the default), wipe the object
307 tree and rebuild from scratch to prevent spurious test failures.
308 This is only needed once: the misnumbered libraries and misplaced
309 binaries have been added to OptionalObsoleteFiles.inc so they will
310 be removed during a clean upgrade.
313 The ixgbe tunables now match their sysctl counterparts, for example:
314 hw.ixgbe.enable_aim => hw.ix.enable_aim
315 Anyone using ixgbe tunables should ensure they update /boot/loader.conf.
318 The NFSv4.1 server committed by r269398 changes the internal
319 function call interfaces used between the NFS and krpc modules.
320 As such, __FreeBSD_version was bumped.
323 The default unbound configuration has been modified to address
324 issues with reverse lookups on networks that use private
325 address ranges. If you use the local_unbound service, run
326 "service local_unbound setup" as root to regenerate your
327 configuration, then "service local_unbound reload" to load the
331 It is no longer necessary to include the dwarf version in your DEBUG
332 options in your kernel config file. The bug that required it to be
333 placed in the config file has bene fixed. DEBUG should now just
334 contain -g. The build system will automatically update things
335 to do the right thing.
338 Several ABI breaking changes were merged to CTL and new iSCSI code.
339 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and
340 iscsictl need to be rebuilt to work with a new kernel.
343 The WITHOUT_VT_SUPPORT kernel config knob has been renamed
344 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning
345 which differs from the behaviour controlled by this knob.)
348 On i386 and amd64 systems, the onifconsole flag is now set by default
349 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled
350 as a login TTY if it is set in the bootloader as an active kernel
351 console. No changes in behavior should result otherwise. To revert to
352 the previous behavior, set ttyu0 to "off" in /etc/ttys.
355 Clang and llvm have been upgraded to 3.4.1 release.
358 Clang and llvm have been upgraded to 3.4 release.
361 If a Makefile in a tests/ directory was auto-generating a Kyuafile
362 instead of providing an explicit one, this would prevent such
363 Makefile from providing its own Kyuafile in the future during
364 NO_CLEAN builds. This has been fixed in the Makefiles but manual
365 intervention is needed to clean an objdir if you use NO_CLEAN:
366 # find /usr/obj -name Kyuafile | xargs rm -f
369 OpenSSH will now ignore errors caused by kernel lacking of Capsicum
370 capability mode support. Please note that enabling the feature in
371 kernel is still highly recommended.
374 OpenSSH is now built with sandbox support, and will use sandbox as
375 the default privilege separation method. This requires Capsicum
376 capability mode support in kernel.
379 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has
380 been deprecated and will not be part of FreeBSD 11.0 and later
381 releases. If you use this driver, please consider switching to
382 the nfe(4) driver instead.
388 The behavior of gss_pseudo_random() for the krb5 mechanism
389 has changed, for applications requesting a longer random string
390 than produced by the underlying enctype's pseudo-random() function.
391 In particular, the random string produced from a session key of
392 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will
393 be different at the 17th octet and later, after this change.
394 The counter used in the PRF+ construction is now encoded as a
395 big-endian integer in accordance with RFC 4402.
396 __FreeBSD_version is bumped to 1000701.
399 The WITHOUT_ATF build knob has been removed and its functionality
400 has been subsumed into the more generic WITHOUT_TESTS. If you were
401 using the former to disable the build of the ATF libraries, you
402 should change your settings to use the latter.
405 The default version of mtree is nmtree which is obtained from
406 NetBSD. The output is generally the same, but may vary
407 slightly. If you found you need identical output adding
408 "-F freebsd9" to the command line should do the trick. For the
409 time being, the old mtree is available as fmtree.
412 libbsdyml has been renamed to libyaml and moved to /usr/lib/private.
413 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg
414 1.1.4_8 and verify bsdyml not linked in, before running "make
416 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean
418 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml
421 The rc.d/jail script has been updated to support jail(8)
422 configuration file. The "jail_<jname>_*" rc.conf(5) variables
423 for per-jail configuration are automatically converted to
424 /var/run/jail.<jname>.conf before the jail(8) utility is invoked.
425 This is transparently backward compatible. See below about some
426 incompatibilities and rc.conf(5) manual page for more details.
428 These variables are now deprecated in favor of jail(8) configuration
429 file. One can use "rc.d/jail config <jname>" command to generate
430 a jail(8) configuration file in /var/run/jail.<jname>.conf without
431 running the jail(8) utility. The default pathname of the
432 configuration file is /etc/jail.conf and can be specified by
433 using $jail_conf or $jail_<jname>_conf variables.
435 Please note that jail_devfs_ruleset accepts an integer at
436 this moment. Please consider to rewrite the ruleset name
440 BIND has been removed from the base system. If all you need
441 is a local resolver, simply enable and start the local_unbound
442 service instead. Otherwise, several versions of BIND are
443 available in the ports tree. The dns/bind99 port is one example.
445 With this change, nslookup(1) and dig(1) are no longer in the base
446 system. Users should instead use host(1) and drill(1) which are
447 in the base system. Alternatively, nslookup and dig can
448 be obtained by installing the dns/bind-tools port.
451 With the addition of unbound(8), a new unbound user is now
452 required during installworld. "mergemaster -p" can be used to
453 add the user prior to installworld, as documented in the handbook.
456 OpenSSH is now built with DNSSEC support, and will by default
457 silently trust signed SSHFP records. This can be controlled with
458 the VerifyHostKeyDNS client configuration setting. DNSSEC support
459 can be disabled entirely with the WITHOUT_LDNS option in src.conf.
462 The GNU Compiler Collection and C++ standard library (libstdc++)
463 are no longer built by default on platforms where clang is the system
464 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX
468 The PROCDESC kernel option is now part of the GENERIC kernel
469 configuration and is required for the rwhod(8) to work.
470 If you are using custom kernel configuration, you should include
474 The API and ABI related to the Capsicum framework was modified
475 in backward incompatible way. The userland libraries and programs
476 have to be recompiled to work with the new kernel. This includes the
477 following libraries and programs, but the whole buildworld is
478 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl,
479 kdump, procstat, rwho, rwhod, uniq.
482 AES-NI intrinsic support has been added to gcc. The AES-NI module
483 has been updated to use this support. A new gcc is required to build
484 the aesni module on both i386 and amd64.
487 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices.
488 Thus "device padlock_rng" and "device rdrand_rng" should be
489 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG".
492 WITH_ICONV has been split into two feature sets. WITH_ICONV now
493 enables just the iconv* functionality and is now on by default.
494 WITH_LIBICONV_COMPAT enables the libiconv api and link time
495 compatability. Set WITHOUT_ICONV to build the old way.
496 If you have been using WITH_ICONV before, you will very likely
497 need to turn on WITH_LIBICONV_COMPAT.
500 INVARIANTS option now enables DEBUG for code with OpenSolaris and
501 Illumos origin, including ZFS. If you have INVARIANTS in your
502 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG
504 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS)
505 locks if WITNESS option was set. Because that generated a lot of
506 witness(9) reports and all of them were believed to be false
507 positives, this is no longer done. New option OPENSOLARIS_WITNESS
508 can be used to achieve the previous behavior.
511 Timer values in IPv6 data structures now use time_uptime instead
512 of time_second. Although this is not a user-visible functional
513 change, userland utilities which directly use them---ndp(8),
514 rtadvd(8), and rtsold(8) in the base system---need to be updated
518 find -delete can now delete the pathnames given as arguments,
519 instead of only files found below them or if the pathname did
520 not contain any slashes. Formerly, the following error message
523 find: -delete: <path>: relative path potentially not safe
525 Deleting the pathnames given as arguments can be prevented
526 without error messages using -mindepth 1 or by changing
527 directory and passing "." as argument to find. This works in the
528 old as well as the new version of find.
531 Behavior of devfs rules path matching has been changed.
532 Pattern is now always matched against fully qualified devfs
533 path and slash characters must be explicitly matched by
534 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs
535 subdirectories must be reviewed.
538 The default ARM ABI has changed to the ARM EABI. The old ABI is
539 incompatible with the ARM EABI and all programs and modules will
540 need to be rebuilt to work with a new kernel.
542 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set.
544 NOTE: Support for the old ABI will be removed in the future and
545 users are advised to upgrade.
548 pkg_install has been disconnected from the build if you really need it
549 you should add WITH_PKGTOOLS in your src.conf(5).
552 Most of network statistics structures were changed to be able
553 keep 64-bits counters. Thus all tools, that work with networking
554 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.)
557 Fix targets that run multiple make's to use && rather than ;
558 so that subsequent steps depend on success of previous.
560 NOTE: if building 'universe' with -j* on stable/8 or stable/9
561 it would be better to start the build using bmake, to avoid
562 overloading the machine.
565 Fix a bug that allowed a tracing process (e.g. gdb) to write
566 to a memory-mapped file in the traced process's address space
567 even if neither the traced process nor the tracing process had
568 write access to that file.
571 CVS has been removed from the base system. An exact copy
572 of the code is available from the devel/cvs port.
575 Some people report the following error after the switch to bmake:
577 make: illegal option -- J
578 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable]
580 *** [buildworld] Error code 2
582 this likely due to an old instance of make in
583 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE})
584 which src/Makefile will use that blindly, if it exists, so if
585 you see the above error:
587 rm -rf `make -V MAKEPATH`
592 Use bmake by default.
593 Whereas before one could choose to build with bmake via
594 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old
595 make. The goal is to remove these knobs for 10-RELEASE.
597 It is worth noting that bmake (like gmake) treats the command
598 line as the unit of failure, rather than statements within the
599 command line. Thus '(cd some/where && dosomething)' is safer
600 than 'cd some/where; dosomething'. The '()' allows consistent
601 behavior in parallel build.
604 Fix a bug that allows NFS clients to issue READDIR on files.
607 The WITHOUT_IDEA option has been removed because
608 the IDEA patent expired.
611 The sysctl which controls TRIM support under ZFS has been renamed
612 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been
616 The mergemaster command now uses the default MAKEOBJDIRPREFIX
617 rather than creating it's own in the temporary directory in
618 order allow access to bootstrapped versions of tools such as
619 install and mtree. When upgrading from version of FreeBSD where
620 the install command does not support -l, you will need to
621 install a new mergemaster command if mergemaster -p is required.
622 This can be accomplished with the command (cd src/usr.sbin/mergemaster
626 Legacy ATA stack, disabled and replaced by new CAM-based one since
627 FreeBSD 9.0, completely removed from the sources. Kernel modules
628 atadisk and atapi*, user-level tools atacontrol and burncd are
629 removed. Kernel option `options ATA_CAM` is now permanently enabled
633 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2)
634 and socketpair(2). Software, in particular Kerberos, may
635 automatically detect and use these during building. The resulting
636 binaries will not work on older kernels.
639 CTL_DISABLE has also been added to the sparc64 GENERIC (for further
640 information, see the respective 20130304 entry).
643 Recent commits to callout(9) changed the size of struct callout,
644 so the KBI is probably heavily disturbed. Also, some functions
645 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced
646 by macros. Every kernel module using it won't load, so rebuild
649 The ctl device has been re-enabled in GENERIC for i386 and amd64,
650 but does not initialize by default (because of the new CTL_DISABLE
651 option) to save memory. To re-enable it, remove the CTL_DISABLE
652 option from the kernel config file or set kern.cam.ctl.disable=0
653 in /boot/loader.conf.
656 The ctl device has been disabled in GENERIC for i386 and amd64.
657 This was done due to the extra memory being allocated at system
658 initialisation time by the ctl driver which was only used if
659 a CAM target device was created. This makes a FreeBSD system
660 unusable on 128MB or less of RAM.
663 A new compression method (lz4) has been merged to -HEAD. Please
664 refer to zpool-features(7) for more information.
666 Please refer to the "ZFS notes" section of this file for information
667 on upgrading boot ZFS pools.
670 A BSD-licensed patch(1) variant has been added and is installed
671 as bsdpatch, being the GNU version the default patch.
672 To inverse the logic and use the BSD-licensed one as default,
673 while having the GNU version installed as gnupatch, rebuild
674 and install world with the WITH_BSD_PATCH knob set.
677 Due to the use of the new -l option to install(1) during build
678 and install, you must take care not to directly set the INSTALL
679 make variable in your /etc/make.conf, /etc/src.conf, or on the
680 command line. If you wish to use the -C flag for all installs
681 you may be able to add INSTALL+=-C to /etc/make.conf or
685 The install(1) option -M has changed meaning and now takes an
686 argument that is a file or path to append logs to. In the
687 unlikely event that -M was the last option on the command line
688 and the command line contained at least two files and a target
689 directory the first file will have logs appended to it. The -M
690 option served little practical purpose in the last decade so its
691 use is expected to be extremely rare.
694 After switching to Clang as the default compiler some users of ZFS
695 on i386 systems started to experience stack overflow kernel panics.
696 Please consider using 'options KSTACK_PAGES=4' in such configurations.
699 GEOM_LABEL now mangles label names read from file system metadata.
700 Mangling affect labels containing spaces, non-printable characters,
701 '%' or '"'. Device names in /etc/fstab and other places may need to
705 By default, only the 10 most recent kernel dumps will be saved. To
706 restore the previous behaviour (no limit on the number of kernel dumps
707 stored in the dump directory) add the following line to /etc/rc.conf:
712 With the addition of auditdistd(8), a new auditdistd user is now
713 required during installworld. "mergemaster -p" can be used to
714 add the user prior to installworld, as documented in the handbook.
717 The sin6_scope_id member variable in struct sockaddr_in6 is now
718 filled by the kernel before passing the structure to the userland via
719 sysctl or routing socket. This means the KAME-specific embedded scope
720 id in sin6_addr.s6_addr[2] is always cleared in userland application.
721 This behavior can be controlled by net.inet6.ip6.deembed_scopeid.
722 __FreeBSD_version is bumped to 1000025.
725 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default.
726 This means that the world and kernel will be compiled with clang
727 and that clang will be installed as /usr/bin/cc, /usr/bin/c++,
728 and /usr/bin/cpp. To disable this behavior and revert to building
729 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions
730 of current may need to bootstrap WITHOUT_CLANG first if the clang
731 build fails (its compatibility window doesn't extend to the 9 stable
735 The IPFIREWALL_FORWARD kernel option has been removed. Its
736 functionality now turned on by default.
739 The ZERO_COPY_SOCKET kernel option has been removed and
740 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP.
741 NB: SOCKET_SEND_COW uses the VM page based copy-on-write
742 mechanism which is not safe and may result in kernel crashes.
743 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current
744 driver supports disposeable external page sized mbuf storage.
745 Proper replacements for both zero-copy mechanisms are under
746 consideration and will eventually lead to complete removal
747 of the two kernel options.
750 The IPv4 network stack has been converted to network byte
751 order. The following modules need to be recompiled together
752 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4),
753 pf(4), ipfw(4), ng_ipfw(4), stf(4).
756 Support for non-MPSAFE filesystems was removed from VFS. The
757 VFS_VERSION was bumped, all filesystem modules shall be
761 All the non-MPSAFE filesystems have been disconnected from
762 the build. The full list includes: codafs, hpfs, ntfs, nwfs,
763 portalfs, smbfs, xfs.
766 The interface cloning API and ABI has changed. The following
767 modules need to be recompiled together with kernel:
768 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4),
769 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4),
770 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4).
773 The sdhci driver was split in two parts: sdhci (generic SD Host
774 Controller logic) and sdhci_pci (actual hardware driver).
775 No kernel config modifications are required, but if you
776 load sdhc as a module you must switch to sdhci_pci instead.
779 Import the FUSE kernel and userland support into base system.
782 The GNU sort(1) program has been removed since the BSD-licensed
783 sort(1) has been the default for quite some time and no serious
784 problems have been reported. The corresponding WITH_GNU_SORT
788 The pfil(9) API/ABI for AF_INET family has been changed. Packet
789 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled
793 The net80211(4) ABI has been changed to allow for improved driver
794 PS-POLL and power-save support. All wireless drivers need to be
795 recompiled to work with the new kernel.
798 The random(4) support for the VIA hardware random number
799 generator (`PADLOCK') is no longer enabled unconditionally.
800 Add the padlock_rng device in the custom kernel config if
801 needed. The GENERIC kernels on i386 and amd64 do include the
802 device, so the change only affects the custom kernel
806 The pf(4) packet filter ABI has been changed. pfctl(8) and
807 snmp_pf module need to be recompiled to work with new kernel.
810 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged
811 to -HEAD. Pools that have empty_bpobj in active state can not be
812 imported read-write with ZFS implementations that do not support
813 this feature. For more information read the zpool-features(5)
817 The sparc64 ZFS loader has been changed to no longer try to auto-
818 detect ZFS providers based on diskN aliases but now requires these
819 to be explicitly listed in the OFW boot-device environment variable.
822 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring
823 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are
824 configuration changes. Make sure to merge /etc/ssl/openssl.cnf.
827 The following sysctls and tunables have been renamed for consistency
828 with other variables:
829 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered
830 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered
833 The sort utility has been replaced with BSD sort. For now, GNU sort
834 is also available as "gnusort" or the default can be set back to
835 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be
836 installed as "bsdsort".
839 A new version of ZFS (pool version 5000) has been merged to -HEAD.
840 Starting with this version the old system of ZFS pool versioning
841 is superseded by "feature flags". This concept enables forward
842 compatibility against certain future changes in functionality of ZFS
843 pools. The first read-only compatible "feature flag" for ZFS pools
844 is named "com.delphix:async_destroy". For more information
845 read the new zpool-features(5) manual page.
846 Please refer to the "ZFS notes" section of this file for information
847 on upgrading boot ZFS pools.
850 The malloc(3) implementation embedded in libc now uses sources imported
851 as contrib/jemalloc. The most disruptive API change is to
852 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf,
853 delete it prior to installworld, and optionally re-create it using the
854 new format after rebooting. See malloc.conf(5) for details
855 (specifically the TUNING section and the "opt.*" entries in the MALLCTL
859 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb
860 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is
861 now spelled mips. This is to aid compatibility with third-party
862 software that expects this naming scheme in uname(3). Little-endian
863 settings are unchanged. If you are updating a big-endian mips64 machine
864 from before this change, you may need to set MACHINE_ARCH=mips64 in
865 your environment before the new build system will recognize your machine.
868 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported
872 Now unix domain sockets behave "as expected" on nullfs(5). Previously
873 nullfs(5) did not pass through all behaviours to the underlying layer,
874 as a result if we bound to a socket on the lower layer we could connect
875 only to the lower path; if we bound to the upper layer we could connect
876 only to the upper path. The new behavior is one can connect to both the
877 lower and the upper paths regardless what layer path one binds to.
880 The getifaddrs upgrade path broken with 20111215 has been restored.
881 If you have upgraded in between 20111215 and 20120209 you need to
882 recompile libc again with your kernel. You still need to recompile
883 world to be able to configure CARP but this restriction already
887 The set_rcvar() function has been removed from /etc/rc.subr. All
888 base and ports rc.d scripts have been updated, so if you have a
889 port installed with a script in /usr/local/etc/rc.d you can either
890 hand-edit the rcvar= line, or reinstall the port.
892 An easy way to handle the mass-update of /etc/rc.d:
893 rm /etc/rc.d/* && mergemaster -i
896 panic(9) now stops other CPUs in the SMP systems, disables interrupts
897 on the current CPU and prevents other threads from running.
898 This behavior can be reverted using the kern.stop_scheduler_on_panic
900 The new behavior can be incompatible with kern.sync_on_panic.
903 The carp(4) facility has been changed significantly. Configuration
904 of the CARP protocol via ifconfig(8) has changed, as well as format
905 of CARP events submitted to devd(8) has changed. See manual pages
906 for more information. The arpbalance feature of carp(4) is currently
907 not supported anymore.
909 Size of struct in_aliasreq, struct in6_aliasreq has changed. User
910 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8),
911 need to be recompiled.
914 The acpi_wmi(4) status device /dev/wmistat has been renamed to
918 The option VFS_ALLOW_NONMPSAFE option has been added in order to
919 explicitely support non-MPSAFE filesystems.
920 It is on by default for all supported platform at this present
924 The broken amd(4) driver has been replaced with esp(4) in the amd64,
925 i386 and pc98 GENERIC kernel configuration files.
928 sysinstall has been removed
931 The stable/9 branch created in subversion. This corresponds to the
932 RELENG_9 branch in CVS.
935 This commit modifies vfs_register() so that it uses a hash
936 calculation to set vfc_typenum, which is enabled by default.
937 The first time a system is booted after this change, the
938 vfc_typenum values will change for all file systems. The
939 main effect of this is a change to the NFS server file handles
940 for file systems that use vfc_typenum in their fsid, such as ZFS.
941 It will, however, prevent vfc_typenum from changing when file
942 systems are loaded in a different order for subsequent reboots.
943 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf
944 until you are ready to remount all NFS clients after a reboot.
947 Bump the shared library version numbers for libraries that
948 do not use symbol versioning, have changed the ABI compared
949 to stable/8 and which shared library version was not bumped.
950 Done as part of 9.0-RELEASE cycle.
953 During the merge of Capsicum features, the fget(9) KPI was modified.
954 This may require the rebuilding of out-of-tree device drivers --
955 issues have been reported specifically with the nVidia device driver.
956 __FreeBSD_version is bumped to 900041.
958 Also, there is a period between 20110811 and 20110814 where the
959 special devices /dev/{stdin,stdout,stderr} did not work correctly.
960 Building world from a kernel during that window may not work.
963 The packet filter (pf) code has been updated to OpenBSD 4.5.
964 You need to update userland tools to be in sync with kernel.
965 This update breaks backward compatibility with earlier pfsync(4)
966 versions. Care must be taken when updating redundant firewall setups.
969 The following sysctls and tunables are retired on x86 platforms:
971 machdep.hlt_logical_cpus
972 The following sysctl is retired:
973 machdep.hyperthreading_allowed
974 The sysctls were supposed to provide a way to dynamically offline and
975 online selected CPUs on x86 platforms, but the implementation has not
976 been reliable especially with SCHED_ULE scheduler.
977 machdep.hyperthreading_allowed tunable is still available to ignore
978 hyperthreading CPUs at OS level.
979 Individual CPUs can be disabled using hint.lapic.X.disabled tunable,
980 where X is an APIC ID of a CPU. Be advised, though, that disabling
981 CPUs in non-uniform fashion will result in non-uniform topology and
982 may lead to sub-optimal system performance with SCHED_ULE, which is
986 cpumask_t type is retired and cpuset_t is used in order to describe
990 Changes to ifconfig(8) for dynamic address family detection mandate
991 that you are running a kernel of 20110525 or later. Make sure to
992 follow the update procedure to boot a new kernel before installing
996 Support for sun4v architecture is officially dropped
999 Several KPI breaking changes have been committed to the mii(4) layer,
1000 the PHY drivers and consequently some Ethernet drivers using mii(4).
1001 This means that miibus.ko and the modules of the affected Ethernet
1002 drivers need to be recompiled.
1004 Note to kernel developers: Given that the OUI bit reversion problem
1005 was fixed as part of these changes all mii(4) commits related to OUIs,
1006 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific
1007 handling, no longer can be merged verbatim to stable/8 and previous
1011 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci'
1012 into their kernel configurations along with 'device pci'.
1015 The default NFS client is now the new NFS client, so fstype "newnfs"
1016 is now "nfs" and the regular/old NFS client is now fstype "oldnfs".
1017 Although mounts via fstype "nfs" will usually work without userland
1018 changes, it is recommended that the mount(8) and mount_nfs(8)
1019 commands be rebuilt from sources and that a link to mount_nfs called
1020 mount_oldnfs be created. The new client is compiled into the
1021 kernel with "options NFSCL" and this is needed for diskless root
1022 file systems. The GENERIC kernel configs have been changed to use
1023 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER.
1024 To use the regular/old client, you can "mount -t oldnfs ...". For
1025 a diskless root file system, you must also include a line like:
1027 vfs.root.mountfrom="oldnfs:"
1029 in the boot/loader.conf on the root fs on the NFS server to make
1030 a diskless root fs use the old client.
1033 The GENERIC kernels for all architectures now default to the new
1034 CAM-based ATA stack. It means that all legacy ATA drivers were
1035 removed and replaced by respective CAM drivers. If you are using
1036 ATA device names in /etc/fstab or other places, make sure to update
1037 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY,
1038 where 'Y's are the sequential numbers starting from zero for each type
1039 in order of detection, unless configured otherwise with tunables,
1040 see cam(4)). There will be symbolic links created in /dev/ to map
1041 old adX devices to the respective adaY. They should provide basic
1042 compatibility for file systems mounting in most cases, but they do
1043 not support old user-level APIs and do not have respective providers
1044 in GEOM. Consider using updated management tools with new device names.
1046 It is possible to load devices ahci, ata, siis and mvs as modules,
1047 but option ATA_CAM should remain in kernel configuration to make ata
1048 module work as CAM driver supporting legacy ATA controllers. Device ata
1049 still can be used in modular fashion (atacore + ...). Modules atadisk
1050 and atapi* are not used and won't affect operation in ATA_CAM mode.
1051 Note that to use CAM-based ATA kernel should include CAM devices
1052 scbus, pass, da (or explicitly ada), cd and optionally others. All of
1053 them are parts of the cam module.
1055 ataraid(4) functionality is now supported by the RAID GEOM class.
1056 To use it you can load geom_raid kernel module and use graid(8) tool
1057 for management. Instead of /dev/arX device names, use /dev/raid/rX.
1059 No kernel config options or code have been removed, so if a problem
1060 arises, please report it and optionally revert to the old ATA stack.
1061 In order to do it you can remove from the kernel config:
1066 , and instead add back:
1067 device atadisk # ATA disk drives
1068 device ataraid # ATA RAID drives
1069 device atapicd # ATAPI CDROM drives
1070 device atapifd # ATAPI floppy drives
1071 device atapist # ATAPI tape drives
1074 The default NFS server has been changed to the new server, which
1075 was referred to as the experimental server. If you need to switch
1076 back to the old NFS server, you must now put the "-o" option on
1077 both the mountd and nfsd commands. This can be done using the
1078 mountd_flags and nfs_server_flags rc.conf variables until an
1079 update to the rc scripts is committed, which is coming soon.
1082 The GNU Objective-C runtime library (libobjc), and other Objective-C
1083 related components have been removed from the base system. If you
1084 require an Objective-C library, please use one of the available ports.
1087 ath(4) has been split into bus- and device- modules. if_ath contains
1088 the HAL, the TX rate control and the network device code. if_ath_pci
1089 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb
1090 contains the AHB glue. Users need to load both if_ath_pci and if_ath
1091 in order to use ath on everything else.
1093 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only
1094 need to load if_ath and if_ath_pci for ath(4) operation.
1097 As part of the replacement of sysinstall, the process of building
1098 release media has changed significantly. For details, please re-read
1099 release(7), which has been updated to reflect the new build process.
1102 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This
1103 is the last available version under GPLv2. It brings a number of new
1104 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE
1105 4.1 and SSE 4.2), better support for powerpc64, a number of new
1106 directives, and lots of other small improvements. See the ChangeLog
1107 file in contrib/binutils for the full details.
1110 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868
1111 compliant, and will now use half of hash for authentication.
1112 This will break interoperability with all stacks (including all
1113 actual FreeBSD versions) who implement
1114 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for
1116 The only workaround with such peers is to use another HMAC
1117 algorithm for IPsec ("phase 2") authentication.
1120 Remove the uio_yield prototype and symbol. This function has
1121 been misnamed since it was introduced and should not be
1122 globally exposed with this name. The equivalent functionality
1123 is now available using kern_yield(curthread->td_user_pri).
1124 The function remains undocumented.
1127 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers,
1128 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking
1129 for scalar sysctls is defined but disabled. Code that needs
1130 UQUAD to pass the type checking that must compile on older
1131 systems where the define is not present can check against
1132 __FreeBSD_version >= 900030.
1134 The system dialog(1) has been replaced with a new version previously
1135 in ports as devel/cdialog. dialog(1) is mostly command-line compatible
1136 with the previous version, but the libdialog associated with it has
1137 a largely incompatible API. As such, the original version of libdialog
1138 will be kept temporarily as libodialog, until its base system consumers
1139 are replaced or updated. Bump __FreeBSD_version to 900030.
1142 If you are trying to run make universe on a -stable system, and you get
1143 the following warning:
1144 "Makefile", line 356: "Target architecture for i386/conf/GENERIC
1145 unknown. config(8) likely too old."
1146 or something similar to it, then you must upgrade your -stable system
1147 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in
1148 stable/8) or build the config from the latest stable/8 branch and
1149 install it on your system.
1151 Prior to this date, building a current universe on 8-stable system from
1152 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing
1153 error in the first kernel build phase. A new config on those old
1154 systems will fix that problem for older versions of -current.
1157 The TCP stack has been modified to allow Khelp modules to interact with
1158 it via helper hook points and store per-connection data in the TCP
1159 control block. Bump __FreeBSD_version to 900029. User space tools that
1160 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to
1164 Generic IEEE 802.3 annex 31B full duplex flow control support has been
1165 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along
1166 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted
1167 to take advantage of it instead of using custom implementations. This
1168 means that these drivers now no longer unconditionally advertise
1169 support for flow control but only do so if flow control is a selected
1170 media option. This was implemented in the generic support that way in
1171 order to allow flow control to be switched on and off via ifconfig(8)
1172 with the PHY specific default to typically off in order to protect
1173 from unwanted effects. Consequently, if you used flow control with
1174 one of the above mentioned drivers you now need to explicitly enable
1175 it, for example via:
1176 ifconfig bge0 media auto mediaopt flowcontrol
1178 Along with the above mentioned changes generic support for setting
1179 1000baseT master mode also has been added and brgphy(4), ciphy(4),
1180 e1000phy(4) as well as ip1000phy(4) have been converted to take
1181 advantage of it. This means that these drivers now no longer take the
1182 link0 parameter for selecting master mode but the master media option
1183 has to be used instead, for example like in the following:
1184 ifconfig bge0 media 1000baseT mediaopt full-duplex,master
1186 Selection of master mode now is also available with all other PHY
1187 drivers supporting 1000baseT.
1190 The TCP stack has received a significant update to add support for
1191 modularised congestion control and generally improve the clarity of
1192 congestion control decisions. Bump __FreeBSD_version to 900025. User
1193 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g.
1194 sockstat) need to be recompiled.
1197 The man(1) utility has been replaced by a new version that no longer
1198 uses /etc/manpath.config. Please consult man.conf(5) for how to
1199 migrate local entries to the new format.
1202 The copyright strings printed by login(1) and sshd(8) at the time of a
1203 new connection have been removed to follow other operating systems and
1207 A workaround for a fixed ld bug has been removed in kernel code,
1208 so make sure that your system ld is built from sources after
1209 revision 210245 from 2010-07-19 (r211583 if building head kernel
1210 on stable/8, r211584 for stable/7; both from 2010-08-21).
1211 A symptom of incorrect ld version is different addresses for
1212 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules.
1215 The $ipv6_prefer variable in rc.conf(5) has been split into
1216 $ip6addrctl_policy and $ipv6_activate_all_interfaces.
1218 The $ip6addrctl_policy is a variable to choose a pre-defined
1219 address selection policy set by ip6addrctl(8). A value
1220 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The
1223 The $ipv6_activate_all_interfaces specifies whether IFDISABLED
1224 flag (see an entry of 20090926) is set on an interface with no
1225 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for
1226 security reason. If you want IPv6 link-local address on all
1227 interfaces by default, set this to "YES".
1229 The old ipv6_prefer="YES" is equivalent to
1230 ipv6_activate_all_interfaces="YES" and
1231 ip6addrctl_policy="ipv6_prefer".
1234 DTrace has grown support for userland tracing. Due to this, DTrace is
1235 now i386 and amd64 only.
1236 dtruss(1) is now installed by default on those systems and a new
1237 kernel module is needed for userland tracing: fasttrap.
1238 No changes to your kernel config file are necessary to enable
1239 userland tracing, but you might consider adding 'STRIP=' and
1240 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want
1241 to have informative userland stack traces in DTrace (ustack).
1244 The acpi_aiboost(4) driver has been removed in favor of the new
1245 aibs(4) driver. You should update your kernel configuration file.
1248 BSD grep has been imported to the base system and it is built by
1249 default. It is completely BSD licensed, highly GNU-compatible, uses
1250 less memory than its GNU counterpart and has a small codebase.
1251 However, it is slower than its GNU counterpart, which is mostly
1252 noticeable for larger searches, for smaller ones it is measurable
1253 but not significant. The reason is complex, the most important factor
1254 is that we lack a modern and efficient regex library and GNU
1255 overcomes this by optimizing the searches internally. Future work
1256 on improving the regex performance is planned, for the meantime,
1257 users that need better performance, can build GNU grep instead by
1258 setting the WITH_GNU_GREP knob.
1261 Due to the import of powerpc64 support, all existing powerpc kernel
1262 configuration files must be updated with a machine directive like this:
1263 machine powerpc powerpc
1265 In addition, an updated config(8) is required to build powerpc kernels
1269 A new version of ZFS (version 15) has been merged to -HEAD.
1270 This version uses a python library for the following subcommands:
1271 zfs allow, zfs unallow, zfs groupspace, zfs userspace.
1272 For full functionality of these commands the following port must
1273 be installed: sysutils/py-zfs
1276 'vm_page's are now hashed by physical address to an array of mutexes.
1277 Currently this is only used to serialize access to hold_count. Over
1278 time the page queue mutex will be peeled away. This changes the size
1279 of pmap on every architecture. And requires all callers of vm_page_hold
1280 and vm_page_unhold to be updated.
1283 WITH_CTF can now be specified in src.conf (not recommended, there
1284 are some problems with static executables), make.conf (would also
1285 affect ports which do not use GNU make and do not override the
1286 compile targets) or in the kernel config (via "makeoptions
1288 When WITH_CTF was specified there before this was silently ignored,
1289 so make sure that WITH_CTF is not used in places which could lead
1290 to unwanted behavior.
1293 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32
1294 to allow 32-bit compatibility on non-x86 platforms. All kernel
1295 configurations on amd64 and ia64 platforms using these options must
1296 be modified accordingly.
1299 The utmp user accounting database has been replaced with utmpx,
1300 the user accounting interface standardized by POSIX.
1301 Unfortunately the semantics of utmp and utmpx don't match,
1302 making it practically impossible to support both interfaces.
1303 The user accounting database is used by tools like finger(1),
1304 last(1), talk(1), w(1) and ac(8).
1306 All applications in the base system use utmpx. This means only
1307 local binaries (e.g. from the ports tree) may still use these
1308 utmp database files. These applications must be rebuilt to make
1311 After the system has been upgraded, it is safe to remove the old
1312 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*),
1313 assuming their contents is of no importance anymore. Old wtmp
1314 databases can only be used by last(1) and ac(8) after they have
1315 been converted to the new format using wtmpcvt(1).
1318 Introduce the kernel thread "deadlock resolver" (which can be enabled
1319 via the DEADLKRES option, see NOTES for more details) and the
1320 sleepq_type() function for sleepqueues.
1323 The rc.firewall and rc.firewall6 were unified, and
1324 rc.firewall6 and rc.d/ip6fw were removed.
1325 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc
1326 variables are obsoleted. Instead, the following new rc
1327 variables are added to rc.d/ipfw:
1329 firewall_client_net_ipv6, firewall_simple_iif_ipv6,
1330 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6,
1331 firewall_simple_onet_ipv6, firewall_trusted_ipv6
1333 The meanings correspond to the relevant IPv4 variables.
1339 The default terminal emulation for syscons(4) has been changed
1340 from cons25 to xterm on all platforms except pc98. This means
1341 that the /etc/ttys file needs to be updated to ensure correct
1342 operation of applications on the console.
1344 The terminal emulation style can be toggled per window by using
1345 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration
1346 options can be used to change the compile-time default back to
1349 To prevent graphical artifacts, make sure the TERM environment
1350 variable is set to match the terminal emulation that is being
1351 performed by syscons(4).
1354 The layout of the structure ieee80211req_scan_result has changed.
1355 Applications that require wireless scan results (e.g. ifconfig(8))
1356 from net80211 need to be recompiled.
1358 Applications such as wpa_supplicant(8) may require a full world
1359 build without using NO_CLEAN in order to get synchronized with the
1363 The iwn(4) driver has been updated to support the 5000 and 5150 series.
1364 There's one kernel module for each firmware. Adding "device iwnfw"
1365 to the kernel configuration file means including all three firmware
1366 images inside the kernel. If you want to include just the one for
1367 your wireless card, use the devices iwn4965fw, iwn5000fw or
1371 The rc.d/network_ipv6, IPv6 configuration script has been integrated
1372 into rc.d/netif. The changes are the following:
1374 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF
1375 for IPv4. For aliases, $ifconfig_IF_aliasN should be used.
1376 Note that both variables need the "inet6" keyword at the head.
1378 Do not set $ipv6_network_interfaces manually if you do not
1379 understand what you are doing. It is not needed in most cases.
1381 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but
1384 2. $ipv6_enable is obsolete. Use $ipv6_prefer and
1385 "inet6 accept_rtadv" keyword in ifconfig(8) instead.
1387 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and
1388 all configured interfaces have "inet6 accept_rtadv" in the
1389 $ifconfig_IF_ipv6. These are for backward compatibility.
1391 3. A new variable $ipv6_prefer has been added. If NO, IPv6
1392 functionality of interfaces with no corresponding
1393 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag,
1394 and the default address selection policy of ip6addrctl(8)
1395 is the IPv4-preferred one (see rc.d/ip6addrctl for more details).
1396 Note that if you want to configure IPv6 functionality on the
1397 disabled interfaces after boot, first you need to clear the flag by
1398 using ifconfig(8) like:
1400 ifconfig em0 inet6 -ifdisabled
1402 If YES, the default address selection policy is set as
1405 The default value of $ipv6_prefer is NO.
1407 4. If your system need to receive Router Advertisement messages,
1408 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8)
1409 scripts automatically invoke rtsol(8) when the interface becomes
1410 UP. The Router Advertisement messages are used for SLAAC
1411 (State-Less Address AutoConfiguration).
1414 802.11s D3.03 support was committed. This is incompatible with the
1415 previous code, which was based on D3.0.
1418 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value
1419 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to
1420 control whether accepting Router Advertisement messages or not.
1421 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and
1422 a sysctl variable net.inet6.ip6.auto_linklocal is its default value.
1423 The ifconfig(8) utility now supports these flags.
1426 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
1427 mount(8) and -a option for df(1) to see them.
1430 The old tunable hw.bus.devctl_disable has been superseded by
1431 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be
1432 replaced by hw.bus.devctl_queue=0. The default for this new tunable
1436 Remove the option STOP_NMI. The default action is now to use NMI only
1437 for KDB via the newly introduced function stop_cpus_hard() and
1438 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64.
1441 The stable/8 branch created in subversion. This corresponds to the
1442 RELENG_8 branch in CVS.
1445 Bump the shared library version numbers for all libraries that do not
1446 use symbol versioning as part of the 8.0-RELEASE cycle. Bump
1447 __FreeBSD_version to 800105.
1450 Due to changes in the implementation of virtual network stack support,
1451 all network-related kernel modules must be recompiled. As this change
1452 breaks the ABI, bump __FreeBSD_version to 800104.
1455 The TOE interface to the TCP syncache has been modified to remove
1456 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack.
1457 The cxgb driver is the only TOE consumer affected by this change, and
1458 needs to be recompiled along with the kernel. As this change breaks
1459 the ABI, bump __FreeBSD_version to 800103.
1462 Padding has been added to struct tcpcb, sackhint and tcpstat in
1463 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
1464 maintaining the ABI. However, this change breaks the ABI, so bump
1465 __FreeBSD_version to 800102. User space tools that rely on the size of
1466 any of these structs (e.g. sockstat) need to be recompiled.
1469 The NFS_LEGACYRPC option has been removed along with the old kernel
1470 RPC implementation that this option selected. Kernel configurations
1471 may need to be adjusted.
1474 The network interface device nodes at /dev/net/<interface> have been
1475 removed. All ioctl operations can be performed the normal way using
1476 routing sockets. The kqueue functionality can generally be replaced
1477 with routing sockets.
1480 The documentation from the FreeBSD Documentation Project (Handbook,
1481 FAQ, etc.) is now installed via packages by sysinstall(8) and under
1482 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc.
1485 The ABI of various structures related to the SYSV IPC API have been
1486 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel
1487 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to
1491 Layout of struct vnet has changed as routing related variables were
1492 moved to their own Vimage module. Modules need to be recompiled. Bump
1493 __FreeBSD_version to 800099.
1496 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024
1497 respectively. As long as no more than 16 groups per process are used,
1498 no changes should be visible. When more than 16 groups are used, old
1499 binaries may fail if they call getgroups() or getgrouplist() with
1500 statically sized storage. Recompiling will work around this, but
1501 applications should be modified to use dynamically allocated storage
1502 for group arrays as POSIX.1-2008 does not cap an implementation's
1503 number of supported groups at NGROUPS_MAX+1 as previous versions did.
1505 NFS and portalfs mounts may also be affected as the list of groups is
1506 truncated to 16. Users of NFS who use more than 16 groups, should
1507 take care that negative group permissions are not used on the exported
1508 file systems as they will not be reliable unless a GSSAPI based
1509 authentication method is used.
1512 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This
1513 option compiles in the support for adaptive spinning for lockmgrs
1514 which want to enable it. The lockinit() function now accepts the flag
1515 LK_ADAPTIVE in order to make the lock object subject to adaptive
1516 spinning when both held in write and read mode.
1519 The layout of the structure returned by IEEE80211_IOC_STA_INFO has
1520 changed. User applications that use this ioctl need to be rebuilt.
1523 The layout of struct thread has changed. Kernel and modules need to
1527 The layout of structs ifnet, domain, protosw and vnet_net has changed.
1528 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097.
1531 window(1) has been removed from the base system. It can now be
1532 installed from ports. The port is called misc/window.
1535 The way we are storing and accessing `routing table' entries has
1536 changed. Programs reading the FIB, like netstat, need to be
1540 A new netisr implementation has been added for FreeBSD 8. Network
1541 file system modules, such as igmp, ipdivert, and others, should be
1543 Bump __FreeBSD_version to 800096.
1546 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no
1550 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
1551 Bump __FreeBSD_version to 800094.
1554 Add mnt_xflag field to 'struct mount'. File system modules need to be
1556 Bump __FreeBSD_version to 800093.
1559 The compiling option ADAPTIVE_SX has been retired while it has been
1560 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
1561 The KPI for sx_init_flags() changes as accepting flags:
1562 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has
1563 been introduced in order to handle the reversed logic.
1564 Bump __FreeBSD_version to 800092.
1567 Add support for hierarchical jails. Remove global securelevel.
1568 Bump __FreeBSD_version to 800091.
1571 The layout of struct vnet_net has changed, therefore modules
1573 Bump __FreeBSD_version to 800090.
1576 The newly imported zic(8) produces a new format in the output. Please
1577 run tzsetup(8) to install the newly created data to /etc/localtime.
1580 The sysctl tree for the usb stack has renamed from hw.usb2.* to
1581 hw.usb.* and is now consistent again with previous releases.
1584 802.11 monitor mode support was revised and driver api's were changed.
1585 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead
1586 of DLT_IEEE802_11. No user-visible data structures were changed but
1587 applications that use DLT_IEEE802_11 may require changes.
1588 Bump __FreeBSD_version to 800088.
1591 The layout of the following structs has changed: sysctl_oid,
1592 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
1593 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
1594 panics may be experienced. World rebuild is required for
1595 correctly checking networking state from userland.
1596 Bump __FreeBSD_version to 800085.
1599 MLDv2 and Source-Specific Multicast (SSM) have been merged
1600 to the IPv6 stack. VIMAGE hooks are in but not yet used.
1601 The implementation of SSM within FreeBSD's IPv6 stack closely
1602 follows the IPv4 implementation.
1604 For kernel developers:
1606 * The most important changes are that the ip6_output() and
1607 ip6_input() paths no longer take the IN6_MULTI_LOCK,
1608 and this lock has been downgraded to a non-recursive mutex.
1610 * As with the changes to the IPv4 stack to support SSM, filtering
1611 of inbound multicast traffic must now be performed by transport
1612 protocols within the IPv6 stack. This does not apply to TCP and
1613 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
1615 * The KPIs used by IPv6 multicast are similar to those used by
1616 the IPv4 stack, with the following differences:
1617 * im6o_mc_filter() is analogous to imo_multicast_filter().
1618 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
1619 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
1620 * IN6_LOOKUP_MULTI() has been deprecated and removed.
1621 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
1622 for MLDv1 have an additional 'timer' argument which is used to
1623 jitter the initial membership report for the solicited-node
1624 multicast membership on-link.
1625 * This is not strictly needed for MLDv2, which already jitters
1626 its report transmissions. However, the 'timer' argument is
1627 preserved in case MLDv1 is active on the interface.
1629 * The KAME linked-list based IPv6 membership implementation has
1630 been refactored to use a vector similar to that used by the IPv4
1632 Code which maintains a list of its own multicast memberships
1633 internally, e.g. carp, has been updated to reflect the new
1636 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
1637 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
1638 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
1639 implementation constraint which needs to be addressed in HEAD.
1641 For application developers:
1643 * The changes are broadly similar to those made for the IPv4
1646 * The use of IPv4 and IPv6 multicast socket options on the same
1647 socket, using mapped addresses, HAS NOT been tested or supported.
1649 * There are a number of issues with the implementation of various
1650 IPv6 multicast APIs which need to be resolved in the API surface
1651 before the implementation is fully compatible with KAME userland
1652 use, and these are mostly to do with interface index treatment.
1654 * The literature available discusses the use of either the delta / ASM
1655 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
1656 using setsourcefilter(3)/getsourcefilter(3). For more information
1657 please refer to RFC 3768, 'Socket Interface Extensions for
1658 Multicast Source Filters'.
1660 * Applications which use the published RFC 3678 APIs should be fine.
1662 For systems administrators:
1664 * The mtest(8) utility has been refactored to support IPv6, in
1665 addition to IPv4. Interface addresses are no longer accepted
1666 as arguments, their names must be used instead. The utility
1667 will map the interface name to its first IPv4 address as
1668 returned by getifaddrs(3).
1670 * The ifmcstat(8) utility has also been updated to print the MLDv2
1671 endpoint state and source filter lists via sysctl(3).
1673 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
1674 loopback of IPv6 multicast datagrams by default; it defaults to 1
1675 to preserve the existing behaviour. Disabling multicast loopback is
1676 recommended for optimal system performance.
1678 * The IPv6 MROUTING code has been changed to examine this sysctl
1679 instead of attempting to perform a group lookup before looping
1680 back forwarded datagrams.
1682 Bump __FreeBSD_version to 800084.
1685 Implement low-level Bluetooth HCI API.
1686 Bump __FreeBSD_version to 800083.
1689 The layout of struct malloc_type, used by modules to register new
1690 memory allocation types, has changed. Most modules will need to
1691 be rebuilt or panics may be experienced.
1692 Bump __FreeBSD_version to 800081.
1695 Anticipate overflowing inp_flags - add inp_flags2.
1696 This changes most offsets in inpcb, so checking v4 connection
1697 state will require a world rebuild.
1698 Bump __FreeBSD_version to 800080.
1701 Add an llentry to struct route and struct route_in6. Modules
1702 embedding a struct route will need to be recompiled.
1703 Bump __FreeBSD_version to 800079.
1706 The size of rt_metrics_lite and by extension rtentry has changed.
1707 Networking administration apps will need to be recompiled.
1708 The route command now supports show as an alias for get, weighting
1709 of routes, sticky and nostick flags to alter the behavior of stateful
1711 Bump __FreeBSD_version to 800078.
1714 Do not use Giant for kbdmux(4) locking. This is wrong and
1715 apparently causing more problems than it solves. This will
1716 re-open the issue where interrupt handlers may race with
1717 kbdmux(4) in polling mode. Typical symptoms include (but
1718 not limited to) duplicated and/or missing characters when
1719 low level console functions (such as gets) are used while
1720 interrupts are enabled (for example geli password prompt,
1721 mountroot prompt etc.). Disabling kbdmux(4) may help.
1724 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
1725 kernel modules referencing any of the above need to be recompiled.
1726 Bump __FreeBSD_version to 800075.
1729 GEOM_PART has become the default partition slicer for storage devices,
1730 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
1731 introduces some changes:
1733 MSDOS/EBR: the devices created from MSDOS extended partition entries
1734 (EBR) can be named differently than with GEOM_MBR and are now symlinks
1735 to devices with offset-based names. fstabs may need to be modified.
1737 BSD: the "geometry does not match label" warning is harmless in most
1738 cases but it points to problems in file system misalignment with
1739 disk geometry. The "c" partition is now implicit, covers the whole
1740 top-level drive and cannot be (mis)used by users.
1742 General: Kernel dumps are now not allowed to be written to devices
1743 whose partition types indicate they are meant to be used for file
1744 systems (or, in case of MSDOS partitions, as something else than
1747 Most of these changes date approximately from 200812.
1750 The uscanner(4) driver has been removed from the kernel. This follows
1751 Linux removing theirs in 2.6 and making libusb the default interface
1752 (supported by sane).
1755 The multicast forwarding code has been cleaned up. netstat(1)
1756 only relies on KVM now for printing bandwidth upcall meters.
1757 The IPv4 and IPv6 modules are split into ip_mroute_mod and
1758 ip6_mroute_mod respectively. The config(5) options for statically
1759 compiling this code remain the same, i.e. 'options MROUTING'.
1762 Support for the IFF_NEEDSGIANT network interface flag has been
1763 removed, which means that non-MPSAFE network device drivers are no
1764 longer supported. In particular, if_ar, if_sr, and network device
1765 drivers from the old (legacy) USB stack can no longer be built or
1769 POSIX.1 Native Language Support (NLS) has been enabled in libc and
1770 a bunch of new language catalog files have also been added.
1771 This means that some common libc messages are now localized and
1772 they depend on the LC_MESSAGES environmental variable.
1775 The k8temp(4) driver has been renamed to amdtemp(4) since
1776 support for Family 10 and Family 11 CPU families was added.
1779 IGMPv3 and Source-Specific Multicast (SSM) have been merged
1780 to the IPv4 stack. VIMAGE hooks are in but not yet used.
1782 For kernel developers, the most important changes are that the
1783 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
1784 and this lock has been downgraded to a non-recursive mutex.
1786 Transport protocols (UDP, Raw IP) are now responsible for filtering
1787 inbound multicast traffic according to group membership and source
1788 filters. The imo_multicast_filter() KPI exists for this purpose.
1789 Transports which do not use multicast (SCTP, TCP) already reject
1790 multicast by default. Forwarding and receive performance may improve
1791 as a mutex acquisition is no longer needed in the ip_input()
1792 low-level input path. in_addmulti() and in_delmulti() are shimmed
1793 to new KPIs which exist to support SSM in-kernel.
1795 For application developers, it is recommended that loopback of
1796 multicast datagrams be disabled for best performance, as this
1797 will still cause the lock to be taken for each looped-back
1798 datagram transmission. The net.inet.ip.mcast.loop sysctl may
1799 be tuned to 0 to disable loopback by default; it defaults to 1
1800 to preserve the existing behaviour.
1802 For systems administrators, to obtain best performance with
1803 multicast reception and multiple groups, it is always recommended
1804 that a card with a suitably precise hash filter is used. Hash
1805 collisions will still result in the lock being taken within the
1806 transport protocol input path to check group membership.
1808 If deploying FreeBSD in an environment with IGMP snooping switches,
1809 it is recommended that the net.inet.igmp.sendlocal sysctl remain
1810 enabled; this forces 224.0.0.0/24 group membership to be announced
1813 The size of 'struct igmpstat' has changed; netstat needs to be
1814 recompiled to reflect this.
1815 Bump __FreeBSD_version to 800070.
1818 libusb20.so.1 is now installed as libusb.so.1 and the ports system
1819 updated to use it. This requires a buildworld/installworld in order to
1820 update the library and dependencies (usbconfig, etc). Its advisable to
1821 rebuild all ports which uses libusb. More specific directions are given
1822 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
1823 libusb are no longer required and can be removed.
1826 A workaround is committed to allow the creation of System V shared
1827 memory segment of size > 2 GB on the 64-bit architectures.
1828 Due to a limitation of the existing ABI, the shm_segsz member
1829 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
1830 wrong for large segments. Note that limits must be explicitly
1831 raised to allow such segments to be created.
1834 The layout of struct ifnet has changed, requiring a rebuild of all
1835 network device driver modules.
1838 The /dev handling for the new USB stack has changed, a
1839 buildworld/installworld is required for libusb20.
1842 The new USB2 stack has now been permanently moved in and all kernel and
1843 module names reverted to their previous values (eg, usb, ehci, ohci,
1844 ums, ...). The old usb stack can be compiled in by prefixing the name
1845 with the letter 'o', the old usb modules have been removed.
1846 Updating entry 20090216 for xorg and 20090215 for libmap may still
1850 The rc.conf(5) option if_up_delay has been renamed to
1851 defaultroute_delay to better reflect its purpose. If you have
1852 customized this setting in /etc/rc.conf you need to update it to
1856 xorg 7.4 wants to configure its input devices via hald which does not
1857 yet work with USB2. If the keyboard/mouse does not work in xorg then
1859 Option "AllowEmptyInput" "off"
1860 to your ServerLayout section. This will cause X to use the configured
1861 kbd and mouse sections from your xorg.conf.
1864 The GENERIC kernels for all architectures now default to the new USB2
1865 stack. No kernel config options or code have been removed so if a
1866 problem arises please report it and optionally revert to the old USB
1867 stack. If you are loading USB kernel modules or have a custom kernel
1868 that includes GENERIC then ensure that usb names are also changed over,
1869 eg uftdi -> usb2_serial_ftdi.
1871 Older programs linked against the ports libusb 0.1 need to be
1872 redirected to the new stack's libusb20. /etc/libmap.conf can
1874 # Map old usb library to new one for usb2 stack
1875 libusb-0.1.so.8 libusb20.so.1
1878 All USB ethernet devices now attach as interfaces under the name ueN
1879 (eg. ue0). This is to provide a predictable name as vendors often
1880 change usb chipsets in a product without notice.
1883 The ichsmb(4) driver has been changed to require SMBus slave
1884 addresses be left-justified (xxxxxxx0b) rather than right-justified.
1885 All of the other SMBus controller drivers require left-justified
1886 slave addresses, so this change makes all the drivers provide the
1890 INET6 statistics (struct ip6stat) was updated.
1891 netstat(1) needs to be recompiled.
1894 NTFS has been removed from GENERIC kernel on amd64 to match
1895 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
1896 will load ntfs.ko module automatically when NTFS support is
1897 actually needed, unless ntfs.ko is not installed or security
1898 level prohibits loading kernel modules. If either is the case,
1899 "options NTFS" has to be added into kernel config.
1902 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
1903 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
1904 800061. User space tools that rely on the size of struct tcpcb in
1905 tcp_var.h (e.g. sockstat) need to be recompiled.
1908 ng_tty(4) module updated to match the new TTY subsystem.
1909 Due to API change, user-level applications must be updated.
1910 New API support added to mpd5 CVS and expected to be present
1911 in next mpd5.3 release.
1914 With __FreeBSD_version 800060 the makefs tool is part of
1915 the base system (it was a port).
1918 The afdata and ifnet locks have been changed from mutexes to
1919 rwlocks, network modules will need to be re-compiled.
1922 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
1923 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
1924 The new code reduced struct rtentry{} by 16 bytes on 32-bit
1925 architecture and 40 bytes on 64-bit architecture. The userland
1926 applications "arp" and "ndp" have been updated accordingly.
1927 The output from "netstat -r" shows only routing entries and
1928 none of the L2 information.
1931 __FreeBSD_version 800057 marks the switchover from the
1932 binary ath hal to source code. Users must add the line:
1934 options AH_SUPPORT_AR5416
1936 to their kernel config files when specifying:
1940 The ath_hal module no longer exists; the code is now compiled
1941 together with the driver in the ath module. It is now
1942 possible to tailor chip support (i.e. reduce the set of chips
1943 and thereby the code size); consult ath_hal(4) for details.
1946 __FreeBSD_version 800054 adds memory barriers to
1947 <machine/atomic.h>, new interfaces to ifnet to facilitate
1948 multiple hardware transmit queues for cards that support
1949 them, and a lock-less ring-buffer implementation to
1950 enable drivers to more efficiently manage queueing of
1954 A new version of ZFS (version 13) has been merged to -HEAD.
1955 This version has zpool attribute "listsnapshots" off by
1956 default, which means "zfs list" does not show snapshots,
1957 and is the same as Solaris behavior.
1960 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
1963 The uhci, ohci, ehci and slhci USB Host controller drivers have
1964 been put into separate modules. If you load the usb module
1965 separately through loader.conf you will need to load the
1966 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
1967 controller add the following to loader.conf:
1973 The ABI used by the PMC toolset has changed. Please keep
1974 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
1978 atapci kernel module now includes only generic PCI ATA
1979 driver. AHCI driver moved to ataahci kernel module.
1980 All vendor-specific code moved into separate kernel modules:
1981 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
1982 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
1983 atamarvell, atamicron, atanational, atanetcell, atanvidia,
1984 atapromise, ataserverworks, atasiliconimage, atasis, atavia
1987 The TTY subsystem of the kernel has been replaced by a new
1988 implementation, which provides better scalability and an
1989 improved driver model. Most common drivers have been migrated to
1990 the new TTY subsystem, while others have not. The following
1991 drivers have not yet been ported to the new TTY layer:
1994 cy, digi, rc, rp, sio
2000 ng_h4, ng_tty, ppp, sl, snp
2002 Adding these drivers to your kernel configuration file shall
2003 cause compilation to fail.
2006 ntpd has been upgraded to 4.2.4p5.
2009 OpenSSH has been upgraded to 5.1p1.
2011 For many years, FreeBSD's version of OpenSSH preferred DSA
2012 over RSA for host and user authentication keys. With this
2013 upgrade, we've switched to the vendor's default of RSA over
2014 DSA. This may cause upgraded clients to warn about unknown
2015 host keys even for previously known hosts. Users should
2016 follow the usual procedure for verifying host keys before
2017 accepting the RSA key.
2019 This can be circumvented by setting the "HostKeyAlgorithms"
2020 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
2023 Please note that the sequence of keys offered for
2024 authentication has been changed as well. You may want to
2025 specify IdentityFile in a different order to revert this
2029 The sio(4) driver has been removed from the i386 and amd64
2030 kernel configuration files. This means uart(4) is now the
2031 default serial port driver on those platforms as well.
2033 To prevent collisions with the sio(4) driver, the uart(4) driver
2034 uses different names for its device nodes. This means the
2035 onboard serial port will now most likely be called "ttyu0"
2036 instead of "ttyd0". You may need to reconfigure applications to
2037 use the new device names.
2039 When using the serial port as a boot console, be sure to update
2040 /boot/device.hints and /etc/ttys before booting the new kernel.
2041 If you forget to do so, you can still manually specify the hints
2042 at the loader prompt:
2044 set hint.uart.0.at="isa"
2045 set hint.uart.0.port="0x3F8"
2046 set hint.uart.0.flags="0x10"
2047 set hint.uart.0.irq="4"
2051 The gpt(8) utility has been removed. Use gpart(8) to partition
2055 The version that Linuxulator emulates was changed from 2.4.2
2056 to 2.6.16. If you experience any problems with Linux binaries
2057 please try to set sysctl compat.linux.osrelease to 2.4.2 and
2058 if it fixes the problem contact emulation mailing list.
2061 ISDN4BSD (I4B) was removed from the src tree. You may need to
2062 update a your kernel configuration and remove relevant entries.
2065 I have checked in code to support multiple routing tables.
2066 See the man pages setfib(1) and setfib(2).
2067 This is a hopefully backwards compatible version,
2068 but to make use of it you need to compile your kernel
2069 with options ROUTETABLES=2 (or more up to 16).
2072 The 802.11 wireless support was redone to enable multi-bss
2073 operation on devices that are capable. The underlying device
2074 is no longer used directly but instead wlanX devices are
2075 cloned with ifconfig. This requires changes to rc.conf files.
2076 For example, change:
2077 ifconfig_ath0="WPA DHCP"
2080 ifconfig_wlan0="WPA DHCP"
2081 see rc.conf(5) for more details. In addition, mergemaster of
2082 /etc/rc.d is highly recommended. Simultaneous update of userland
2083 and kernel wouldn't hurt either.
2085 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
2086 modules were merged into the base wlan module. All references
2087 to these modules (e.g. in kernel config files) must be removed.
2090 psm(4) has gained write(2) support in native operation level.
2091 Arbitrary commands can be written to /dev/psm%d and status can
2092 be read back from it. Therefore, an application is responsible
2093 for status validation and error recovery. It is a no-op in
2094 other operation levels.
2097 Support for KSE threading has been removed from the kernel. To
2098 run legacy applications linked against KSE libmap.conf may
2099 be used. The following libmap.conf may be used to ensure
2100 compatibility with any prior release:
2102 libpthread.so.1 libthr.so.1
2103 libpthread.so.2 libthr.so.2
2104 libkse.so.3 libthr.so.3
2107 The layout of struct vmspace has changed. This affects libkvm
2108 and any executables that link against libkvm and use the
2109 kvm_getprocs() function. In particular, but not exclusively,
2110 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
2111 The effects are minimal, but it's advisable to upgrade world
2115 The latest em driver no longer has support in it for the
2116 82575 adapter, this is now moved to the igb driver. The
2117 split was done to make new features that are incompatible
2118 with older hardware easier to do.
2121 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
2122 likewise the kernel option is now GEOM_LINUX_LVM.
2125 The default NFS mount mode has changed from UDP to TCP for
2126 increased reliability. If you rely on (insecurely) NFS
2127 mounting across a firewall you may need to update your
2131 Belatedly note the addition of m_collapse for compacting
2135 The fts(3) structures have been changed to use adequate
2136 integer types for their members and so to be able to cope
2137 with huge file trees. The old fts(3) ABI is preserved
2138 through symbol versioning in libc, so third-party binaries
2139 using fts(3) should still work, although they will not take
2140 advantage of the extended types. At the same time, some
2141 third-party software might fail to build after this change
2142 due to unportable assumptions made in its source code about
2143 fts(3) structure members. Such software should be fixed
2144 by its vendor or, in the worst case, in the ports tree.
2145 FreeBSD_version 800015 marks this change for the unlikely
2146 case that a portable fix is impossible.
2149 To upgrade to -current after this date, you must be running
2150 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
2151 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
2154 The ADAPTIVE_GIANT kernel option has been retired because its
2155 functionality is the default now.
2158 The AT keyboard emulation of sunkbd(4) has been turned on
2159 by default. In order to make the special symbols of the Sun
2160 keyboards driven by sunkbd(4) work under X these now have
2161 to be configured the same way as Sun USB keyboards driven
2162 by ukbd(4) (which also does AT keyboard emulation), f.e.:
2164 Option "XkbLayout" "us"
2165 Option "XkbRules" "xorg"
2166 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
2169 It has been decided that it is desirable to provide ABI
2170 backwards compatibility to the FreeBSD 4/5/6 versions of the
2171 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
2172 broken with the introduction of PCI domain support (see the
2173 20070930 entry). Unfortunately, this required the ABI of
2174 PCIOCGETCONF to be broken again in order to be able to
2175 provide backwards compatibility to the old version of that
2176 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
2177 again. As for prominent ports this affects neither pciutils
2178 nor xorg-server this time, the hal port needs to be rebuilt
2182 The misnamed kthread_create() and friends have been renamed
2183 to kproc_create() etc. Many of the callers already
2184 used kproc_start()..
2185 I will return kthread_create() and friends in a while
2186 with implementations that actually create threads, not procs.
2187 Renaming corresponds with version 800002.
2196 Avoid using make -j when upgrading. While generally safe, there are
2197 sometimes problems using -j to upgrade. If your upgrade fails with
2198 -j, please try again without -j. From time to time in the past there
2199 have been problems using -j with buildworld and/or installworld. This
2200 is especially true when upgrading between "distant" versions (eg one
2201 that cross a major release boundary or several minor releases, or when
2202 several months have passed on the -current branch).
2204 Sometimes, obscure build problems are the result of environment
2205 poisoning. This can happen because the make utility reads its
2206 environment when searching for values for global variables. To run
2207 your build attempts in an "environmental clean room", prefix all make
2208 commands with 'env -i '. See the env(1) manual page for more details.
2210 When upgrading from one major version to another it is generally best
2211 to upgrade to the latest code in the currently installed branch first,
2212 then do an upgrade to the new branch. This is the best-tested upgrade
2213 path, and has the highest probability of being successful. Please try
2214 this approach before reporting problems with a major version upgrade.
2216 When upgrading a live system, having a root shell around before
2217 installing anything can help undo problems. Not having a root shell
2218 around can lead to problems if pam has changed too much from your
2219 starting point to allow continued authentication after the upgrade.
2223 When upgrading the boot ZFS pool to a new version, always follow
2226 1.) recompile and reinstall the ZFS boot loader and boot block
2227 (this is part of "make buildworld" and "make installworld")
2229 2.) update the ZFS boot block on your boot drive
2231 The following example updates the ZFS boot block on the first
2232 partition (freebsd-boot) of a GPT partitioned drive ad0:
2233 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0"
2235 Non-boot pools do not need these updates.
2239 If you are updating from a prior version of FreeBSD (even one just
2240 a few days old), you should follow this procedure. It is the most
2241 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
2243 make kernel-toolchain
2244 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
2245 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
2247 To test a kernel once
2248 ---------------------
2249 If you just want to boot a kernel once (because you are not sure
2250 if it works, or if you want to boot a known bad kernel to provide
2251 debugging information) run
2252 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
2253 nextboot -k testkernel
2255 To just build a kernel when you know that it won't mess you up
2256 --------------------------------------------------------------
2257 This assumes you are already running a CURRENT system. Replace
2258 ${arch} with the architecture of your machine (e.g. "i386",
2259 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc).
2261 cd src/sys/${arch}/conf
2262 config KERNEL_NAME_HERE
2263 cd ../compile/KERNEL_NAME_HERE
2268 If this fails, go to the "To build a kernel" section.
2270 To rebuild everything and install it on the current system.
2271 -----------------------------------------------------------
2272 # Note: sometimes if you are running current you gotta do more than
2273 # is listed here if you are upgrading from a really old current.
2275 <make sure you have good level 0 dumps>
2277 make kernel KERNCONF=YOUR_KERNEL_HERE
2279 <reboot in single user> [3]
2286 To cross-install current onto a separate partition
2287 --------------------------------------------------
2288 # In this approach we use a separate partition to hold
2289 # current's root, 'usr', and 'var' directories. A partition
2290 # holding "/", "/usr" and "/var" should be about 2GB in
2293 <make sure you have good level 0 dumps>
2296 make buildkernel KERNCONF=YOUR_KERNEL_HERE
2297 <maybe newfs current's root partition>
2298 <mount current's root partition on directory ${CURRENT_ROOT}>
2299 make installworld DESTDIR=${CURRENT_ROOT}
2300 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
2301 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
2302 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
2303 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
2304 <reboot into current>
2305 <do a "native" rebuild/install as described in the previous section>
2306 <maybe install compatibility libraries from ports/misc/compat*>
2310 To upgrade in-place from stable to current
2311 ----------------------------------------------
2312 <make sure you have good level 0 dumps>
2314 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
2316 <reboot in single user> [3]
2323 Make sure that you've read the UPDATING file to understand the
2324 tweaks to various things you need. At this point in the life
2325 cycle of current, things change often and you are on your own
2326 to cope. The defaults can also change, so please read ALL of
2327 the UPDATING entries.
2329 Also, if you are tracking -current, you must be subscribed to
2330 freebsd-current@freebsd.org. Make sure that before you update
2331 your sources that you have read and understood all the recent
2332 messages there. If in doubt, please track -stable which has
2333 much fewer pitfalls.
2335 [1] If you have third party modules, such as vmware, you
2336 should disable them at this point so they don't crash your
2339 [3] From the bootblocks, boot -s, and then do
2344 adjkerntz -i # if CMOS is wall time
2345 Also, when doing a major release upgrade, it is required that
2346 you boot into single user mode to do the installworld.
2348 [4] Note: This step is non-optional. Failure to do this step
2349 can result in a significant reduction in the functionality of the
2350 system. Attempting to do it by hand is not recommended and those
2351 that pursue this avenue should read this file carefully, as well
2352 as the archives of freebsd-current and freebsd-hackers mailing lists
2353 for potential gotchas. The -U option is also useful to consider.
2354 See mergemaster(8) for more information.
2356 [5] Usually this step is a noop. However, from time to time
2357 you may need to do this if you get unknown user in the following
2358 step. It never hurts to do it all the time. You may need to
2359 install a new mergemaster (cd src/usr.sbin/mergemaster && make
2360 install) after the buildworld before this step if you last updated
2361 from current before 20130425 or from -stable before 20130430.
2363 [6] This only deletes old files and directories. Old libraries
2364 can be deleted by "make delete-old-libs", but you have to make
2365 sure that no program is using those libraries anymore.
2367 [8] In order to have a kernel that can run the 4.x binaries needed to
2368 do an installworld, you must include the COMPAT_FREEBSD4 option in
2369 your kernel. Failure to do so may leave you with a system that is
2370 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is
2371 required to run the 5.x binaries on more recent kernels. And so on
2372 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7.
2374 Make sure that you merge any new devices from GENERIC since the
2375 last time you updated your kernel config file.
2377 [9] When checking out sources, you must include the -P flag to have
2378 cvs prune empty directories.
2380 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
2381 "?=" instead of the "=" assignment operator, so that buildworld can
2382 override the CPUTYPE if it needs to.
2384 MAKEOBJDIRPREFIX must be defined in an environment variable, and
2385 not on the command line, or in /etc/make.conf. buildworld will
2386 warn if it is improperly defined.
2389 This file contains a list, in reverse chronological order, of major
2390 breakages in tracking -current. It is not guaranteed to be a complete
2391 list of such breakages, and only contains entries since October 10, 2007.
2392 If you need to see UPDATING entries from before that date, you will need
2393 to fetch an UPDATING file from an older FreeBSD release.
2395 Copyright information:
2397 Copyright 1998-2009 M. Warner Losh. All Rights Reserved.
2399 Redistribution, publication, translation and use, with or without
2400 modification, in full or in part, in any form or format of this
2401 document are permitted without further permission from the author.
2403 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
2404 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
2405 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
2406 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
2407 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
2408 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
2409 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2410 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
2411 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
2412 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
2413 POSSIBILITY OF SUCH DAMAGE.
2415 Contact Warner Losh if you have any questions about your use of