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 20160923 p21 FreeBSD-SA-16:26.openssl
21 Fix multiple OpenSSL vulnerabilitites.
23 20160725 p20 FreeBSD-SA-16:25.bspatch
24 FreeBSD-EN-16:09.freebsd-update
26 Fix bspatch heap overflow vulnerability. [SA-16:25]
28 Fix freebsd-update(8) support of FreeBSD 11.0 release
29 distribution. [EN-16:09]
31 20160604 p19 FreeBSD-SA-16:24.ntp
33 Fix multiple vulnerabilities of ntp.
35 20160531 p18 FreeBSD-SA-16:20.linux
36 FreeBSD-SA-16:21.43bsd
37 FreeBSD-SA-16:22.libarchive
39 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20]
40 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21]
41 Fix directory traversal in cpio(1). [SA-16:22]
43 20160517 p17 FreeBSD-SA-16:18.atkbd
44 FreeBSD-SA-16:19.sendmsg
46 Fix buffer overflow in keyboard driver. [SA-16:18]
48 Fix incorrect argument handling in sendmsg(2). [SA-16:19]
50 20160504 p16 FreeBSD-SA-16:17.openssl
54 Fix multiple OpenSSL vulnerabilitites. [SA-16:17]
56 Fix excessive latency in x86 IPI delivery. [EN-16:07]
58 Fix memory leak in ZFS. [EN-16:08]
60 20160429 p15 FreeBSD-SA-16:16.ntp
62 Fix multiple vulnerabilities of ntp.
64 20160316 p14 FreeBSD-SA-16:14.openssh-xauth
65 FreeBSD-SA-16:15.sysarch
66 FreeBSD-EN-16:04.hyperv
67 FreeBSD-EN-16:05.hv_netvsc
69 Fix OpenSSH xauth(1) command injection. [SA-16:14]
70 Fix incorrect argument validation in sysarch(2). [SA-16:15]
71 Fix Hyper-V KVP (Key-Value Pair) daemon indefinite sleep. [EN-16:04]
72 Fix hv_netvsc(4) incorrect TCP/IP checksums. [EN-16:05]
74 20160303 p13 FreeBSD-SA-16:12.openssl
76 Fix multiple vulnerabilities of OpenSSL.
78 20160130 p12 FreeBSD-SA-16:11.openssl
80 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11]
82 20160127 p11 FreeBSD-SA-16:09.ntp
83 FreeBSD-SA-16:10.linux
85 Fix multiple vulnerabilities of ntp. [SA-16:09]
87 Fix Linux compatibility layer issetugid(2) system call
88 vulnerability. [SA-16:10]
90 20160114 p10 FreeBSD-SA-16:07.openssh
92 Fix OpenSSH client information leak. [SA-16:07]
94 20160114 p9 FreeBSD-EN-16:01.filemon
96 FreeBSD-EN-16:03.yplib
99 FreeBSD-SA-16:03.linux
100 FreeBSD-SA-16:04.linux
102 FreeBSD-SA-16:06.bsnmpd
104 Fix multiple stability and locking problems in filemon(4). [EN-16:01]
105 Fix pf(4) generating bad TCP checksums. [EN-16:02]
106 Fix infinite loop in YP/NIS client library. [EN-16:03]
107 Fix remote denial of service in SCTP. [SA-16:01]
108 Update NTP to 4.2.8p5. [SA-16:02]
109 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03]
110 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04]
111 Fix crash in TCP MD5 signatures. [SA-16:05]
112 Fix insecure default permissions for snmpd.config. [SA-16:06]
114 20151205 p8 FreeBSD-SA-15:26.openssl
116 Fix multiple OpenSSL vulnerabilities. [SA-15:26]
118 20151104 p7 FreeBSD-SA-15:25.ntp [revised]
119 FreeBSD-EN-15:19.kqueue
122 Fix regression in ntpd(8) lacking support for RAWDCF reference
123 clock in 10.2-RELEASE-p6. [SA-15:25]
125 Fix kqueue write events never fired for files greater 2GB. [EN-15:19]
127 Fix applications exiting due to segmentation violation on a correct
128 memory address. [EN-15:20.vm]
130 20151026: p6 FreeBSD-SA-15:25.ntp
132 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4.
134 20151002: p5 FreeBSD-SA-15:24.rpcbind [revised]
135 Revised patch to address a regression that prevents NIS from working.
137 20150929: p4 FreeBSD-SA-15:24.rpcbind
139 Fix rpcbind(8) remote denial of service. [SA-15:24]
141 20150916: p3 FreeBSD-EN-15:16.pw
142 FreeBSD-EN-15:17.libc
145 Fix regression in pw(8) when creating numeric users or groups.
148 Fix libc handling of signals for multi-threaded processes.
151 Implement pubkey support for pkg(7) bootstrap. [EN-15:18]
153 20150825: p2 FreeBSD-SA-15:22.openssh
155 Fix OpenSSH multiple vulnerabilities. [SA-15:22]
157 Fix insufficient check of unsupported pkg(7) signature methods.
160 20150818: p1 FreeBSD-SA-15:20.expat
161 FreeBSD-EN-15:11.toolchain
162 FreeBSD-EN-15:12.netstat
163 FreeBSD-EN-15:13.vidcontrol
165 Fix multiple integer overflows in expat (libbsdxml) XML parser.
168 Fix make(1) syntax errors when upgrading from 9.x and earlier.
171 Fix incorrect netstat(1) data handling on 32-bit systems.
174 Allow size argument to vidcontrol(1) for syscons(4). [EN-15:13]
180 The default Unbound configuration now enables remote control
181 using a local socket. Users who have already enabled the
182 local_unbound service should regenerate their configuration
183 by running "service local_unbound setup" as root.
186 An additional fix for the issue described in the 20150614 sendmail
187 entry below has been been committed in revision 284786.
190 The fix for the issue described in the 20150614 sendmail entry
191 below has been been committed in revision 284485. The work
192 around described in that entry is no longer needed unless the
193 default setting is overridden by a confDH_PARAMETERS configuration
194 setting of '5' or pointing to a 512 bit DH parameter file.
197 The import of openssl to address the FreeBSD-SA-15:10.openssl
198 security advisory includes a change which rejects handshakes
199 with DH parameters below 768 bits. sendmail releases prior
200 to 8.15.2 (not yet released), defaulted to a 512 bit
201 DH parameter setting for client connections. To work around
202 this interoperability, sendmail can be configured to use a
203 2048 bit DH parameter by:
205 1. Edit /etc/mail/`hostname`.mc
206 2. If a setting for confDH_PARAMETERS does not exist or
207 exists and is set to a string beginning with '5',
209 3. If a setting for confDH_PARAMETERS exists and is set to
210 a file path, create a new file with:
211 openssl dhparam -out /path/to/file 2048
212 4. Rebuild the .cf file:
213 cd /etc/mail/; make; make install
215 cd /etc/mail/; make restart
217 A sendmail patch is coming, at which time this file will be
221 chmod, chflags, chown and chgrp now affect symlinks in -R mode as
222 defined in symlink(7); previously symlinks were silently ignored.
225 The const qualifier has been removed from iconv(3) to comply with
226 POSIX. The ports tree is aware of this from r384038 onwards.
229 At svn r275807, The default linux compat kernel ABI has been adjusted
230 to 2.6.18 in support of the linux-c6 compat ports infrastructure
231 update. If you wish to continue using the linux-f10 compat ports,
232 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are
233 encouraged to update their linux-compat packages to linux-c6 during
234 their next update cycle.
236 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports.
239 pjdfstest has been integrated into kyua as an opt-in test suite.
240 Please see share/doc/pjdfstest/README for a more details on how to
247 The ofwfb driver, used to provide a graphics console on PowerPC when
248 using vt(4), no longer allows mmap() of all of physical memory. This
249 will prevent Xorg on PowerPC with some ATI graphics cards from
250 initializing properly unless x11-servers/xorg-server is updated to
254 The libatf-c and libatf-c++ major versions were downgraded to 0 and
255 1 respectively to match the upstream numbers. They were out of
256 sync because, when they were originally added to FreeBSD, the
257 upstream versions were not respected. These libraries are private
258 and not yet built by default, so renumbering them should be a
259 non-issue. However, unclean source trees will yield broken test
260 programs once the operator executes "make delete-old-libs" after a
263 Additionally, the atf-sh binary was made private by moving it into
264 /usr/libexec/. Already-built shell test programs will keep the
265 path to the old binary so they will break after "make delete-old"
268 If you are using WITH_TESTS=yes (not the default), wipe the object
269 tree and rebuild from scratch to prevent spurious test failures.
270 This is only needed once: the misnumbered libraries and misplaced
271 binaries have been added to OptionalObsoleteFiles.inc so they will
272 be removed during a clean upgrade.
275 The ixgbe tunables now match their sysctl counterparts, for example:
276 hw.ixgbe.enable_aim => hw.ix.enable_aim
277 Anyone using ixgbe tunables should ensure they update /boot/loader.conf.
280 The NFSv4.1 server committed by r269398 changes the internal
281 function call interfaces used between the NFS and krpc modules.
282 As such, __FreeBSD_version was bumped.
285 The default unbound configuration has been modified to address
286 issues with reverse lookups on networks that use private
287 address ranges. If you use the local_unbound service, run
288 "service local_unbound setup" as root to regenerate your
289 configuration, then "service local_unbound reload" to load the
293 It is no longer necessary to include the dwarf version in your DEBUG
294 options in your kernel config file. The bug that required it to be
295 placed in the config file has bene fixed. DEBUG should now just
296 contain -g. The build system will automatically update things
297 to do the right thing.
300 Several ABI breaking changes were merged to CTL and new iSCSI code.
301 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and
302 iscsictl need to be rebuilt to work with a new kernel.
305 The WITHOUT_VT_SUPPORT kernel config knob has been renamed
306 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning
307 which differs from the behaviour controlled by this knob.)
310 On i386 and amd64 systems, the onifconsole flag is now set by default
311 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled
312 as a login TTY if it is set in the bootloader as an active kernel
313 console. No changes in behavior should result otherwise. To revert to
314 the previous behavior, set ttyu0 to "off" in /etc/ttys.
317 Clang and llvm have been upgraded to 3.4.1 release.
320 Clang and llvm have been upgraded to 3.4 release.
323 If a Makefile in a tests/ directory was auto-generating a Kyuafile
324 instead of providing an explicit one, this would prevent such
325 Makefile from providing its own Kyuafile in the future during
326 NO_CLEAN builds. This has been fixed in the Makefiles but manual
327 intervention is needed to clean an objdir if you use NO_CLEAN:
328 # find /usr/obj -name Kyuafile | xargs rm -f
331 OpenSSH will now ignore errors caused by kernel lacking of Capsicum
332 capability mode support. Please note that enabling the feature in
333 kernel is still highly recommended.
336 OpenSSH is now built with sandbox support, and will use sandbox as
337 the default privilege separation method. This requires Capsicum
338 capability mode support in kernel.
341 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has
342 been deprecated and will not be part of FreeBSD 11.0 and later
343 releases. If you use this driver, please consider switching to
344 the nfe(4) driver instead.
350 The behavior of gss_pseudo_random() for the krb5 mechanism
351 has changed, for applications requesting a longer random string
352 than produced by the underlying enctype's pseudo-random() function.
353 In particular, the random string produced from a session key of
354 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will
355 be different at the 17th octet and later, after this change.
356 The counter used in the PRF+ construction is now encoded as a
357 big-endian integer in accordance with RFC 4402.
358 __FreeBSD_version is bumped to 1000701.
361 The WITHOUT_ATF build knob has been removed and its functionality
362 has been subsumed into the more generic WITHOUT_TESTS. If you were
363 using the former to disable the build of the ATF libraries, you
364 should change your settings to use the latter.
367 The default version of mtree is nmtree which is obtained from
368 NetBSD. The output is generally the same, but may vary
369 slightly. If you found you need identical output adding
370 "-F freebsd9" to the command line should do the trick. For the
371 time being, the old mtree is available as fmtree.
374 libbsdyml has been renamed to libyaml and moved to /usr/lib/private.
375 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg
376 1.1.4_8 and verify bsdyml not linked in, before running "make
378 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean
380 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml
383 The rc.d/jail script has been updated to support jail(8)
384 configuration file. The "jail_<jname>_*" rc.conf(5) variables
385 for per-jail configuration are automatically converted to
386 /var/run/jail.<jname>.conf before the jail(8) utility is invoked.
387 This is transparently backward compatible. See below about some
388 incompatibilities and rc.conf(5) manual page for more details.
390 These variables are now deprecated in favor of jail(8) configuration
391 file. One can use "rc.d/jail config <jname>" command to generate
392 a jail(8) configuration file in /var/run/jail.<jname>.conf without
393 running the jail(8) utility. The default pathname of the
394 configuration file is /etc/jail.conf and can be specified by
395 using $jail_conf or $jail_<jname>_conf variables.
397 Please note that jail_devfs_ruleset accepts an integer at
398 this moment. Please consider to rewrite the ruleset name
402 BIND has been removed from the base system. If all you need
403 is a local resolver, simply enable and start the local_unbound
404 service instead. Otherwise, several versions of BIND are
405 available in the ports tree. The dns/bind99 port is one example.
407 With this change, nslookup(1) and dig(1) are no longer in the base
408 system. Users should instead use host(1) and drill(1) which are
409 in the base system. Alternatively, nslookup and dig can
410 be obtained by installing the dns/bind-tools port.
413 With the addition of unbound(8), a new unbound user is now
414 required during installworld. "mergemaster -p" can be used to
415 add the user prior to installworld, as documented in the handbook.
418 OpenSSH is now built with DNSSEC support, and will by default
419 silently trust signed SSHFP records. This can be controlled with
420 the VerifyHostKeyDNS client configuration setting. DNSSEC support
421 can be disabled entirely with the WITHOUT_LDNS option in src.conf.
424 The GNU Compiler Collection and C++ standard library (libstdc++)
425 are no longer built by default on platforms where clang is the system
426 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX
430 The PROCDESC kernel option is now part of the GENERIC kernel
431 configuration and is required for the rwhod(8) to work.
432 If you are using custom kernel configuration, you should include
436 The API and ABI related to the Capsicum framework was modified
437 in backward incompatible way. The userland libraries and programs
438 have to be recompiled to work with the new kernel. This includes the
439 following libraries and programs, but the whole buildworld is
440 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl,
441 kdump, procstat, rwho, rwhod, uniq.
444 AES-NI intrinsic support has been added to gcc. The AES-NI module
445 has been updated to use this support. A new gcc is required to build
446 the aesni module on both i386 and amd64.
449 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices.
450 Thus "device padlock_rng" and "device rdrand_rng" should be
451 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG".
454 WITH_ICONV has been split into two feature sets. WITH_ICONV now
455 enables just the iconv* functionality and is now on by default.
456 WITH_LIBICONV_COMPAT enables the libiconv api and link time
457 compatability. Set WITHOUT_ICONV to build the old way.
458 If you have been using WITH_ICONV before, you will very likely
459 need to turn on WITH_LIBICONV_COMPAT.
462 INVARIANTS option now enables DEBUG for code with OpenSolaris and
463 Illumos origin, including ZFS. If you have INVARIANTS in your
464 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG
466 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS)
467 locks if WITNESS option was set. Because that generated a lot of
468 witness(9) reports and all of them were believed to be false
469 positives, this is no longer done. New option OPENSOLARIS_WITNESS
470 can be used to achieve the previous behavior.
473 Timer values in IPv6 data structures now use time_uptime instead
474 of time_second. Although this is not a user-visible functional
475 change, userland utilities which directly use them---ndp(8),
476 rtadvd(8), and rtsold(8) in the base system---need to be updated
480 find -delete can now delete the pathnames given as arguments,
481 instead of only files found below them or if the pathname did
482 not contain any slashes. Formerly, the following error message
485 find: -delete: <path>: relative path potentially not safe
487 Deleting the pathnames given as arguments can be prevented
488 without error messages using -mindepth 1 or by changing
489 directory and passing "." as argument to find. This works in the
490 old as well as the new version of find.
493 Behavior of devfs rules path matching has been changed.
494 Pattern is now always matched against fully qualified devfs
495 path and slash characters must be explicitly matched by
496 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs
497 subdirectories must be reviewed.
500 The default ARM ABI has changed to the ARM EABI. The old ABI is
501 incompatible with the ARM EABI and all programs and modules will
502 need to be rebuilt to work with a new kernel.
504 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set.
506 NOTE: Support for the old ABI will be removed in the future and
507 users are advised to upgrade.
510 pkg_install has been disconnected from the build if you really need it
511 you should add WITH_PKGTOOLS in your src.conf(5).
514 Most of network statistics structures were changed to be able
515 keep 64-bits counters. Thus all tools, that work with networking
516 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.)
519 Fix targets that run multiple make's to use && rather than ;
520 so that subsequent steps depend on success of previous.
522 NOTE: if building 'universe' with -j* on stable/8 or stable/9
523 it would be better to start the build using bmake, to avoid
524 overloading the machine.
527 Fix a bug that allowed a tracing process (e.g. gdb) to write
528 to a memory-mapped file in the traced process's address space
529 even if neither the traced process nor the tracing process had
530 write access to that file.
533 CVS has been removed from the base system. An exact copy
534 of the code is available from the devel/cvs port.
537 Some people report the following error after the switch to bmake:
539 make: illegal option -- J
540 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable]
542 *** [buildworld] Error code 2
544 this likely due to an old instance of make in
545 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE})
546 which src/Makefile will use that blindly, if it exists, so if
547 you see the above error:
549 rm -rf `make -V MAKEPATH`
554 Use bmake by default.
555 Whereas before one could choose to build with bmake via
556 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old
557 make. The goal is to remove these knobs for 10-RELEASE.
559 It is worth noting that bmake (like gmake) treats the command
560 line as the unit of failure, rather than statements within the
561 command line. Thus '(cd some/where && dosomething)' is safer
562 than 'cd some/where; dosomething'. The '()' allows consistent
563 behavior in parallel build.
566 Fix a bug that allows NFS clients to issue READDIR on files.
569 The WITHOUT_IDEA option has been removed because
570 the IDEA patent expired.
573 The sysctl which controls TRIM support under ZFS has been renamed
574 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been
578 The mergemaster command now uses the default MAKEOBJDIRPREFIX
579 rather than creating it's own in the temporary directory in
580 order allow access to bootstrapped versions of tools such as
581 install and mtree. When upgrading from version of FreeBSD where
582 the install command does not support -l, you will need to
583 install a new mergemaster command if mergemaster -p is required.
584 This can be accomplished with the command (cd src/usr.sbin/mergemaster
588 Legacy ATA stack, disabled and replaced by new CAM-based one since
589 FreeBSD 9.0, completely removed from the sources. Kernel modules
590 atadisk and atapi*, user-level tools atacontrol and burncd are
591 removed. Kernel option `options ATA_CAM` is now permanently enabled
595 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2)
596 and socketpair(2). Software, in particular Kerberos, may
597 automatically detect and use these during building. The resulting
598 binaries will not work on older kernels.
601 CTL_DISABLE has also been added to the sparc64 GENERIC (for further
602 information, see the respective 20130304 entry).
605 Recent commits to callout(9) changed the size of struct callout,
606 so the KBI is probably heavily disturbed. Also, some functions
607 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced
608 by macros. Every kernel module using it won't load, so rebuild
611 The ctl device has been re-enabled in GENERIC for i386 and amd64,
612 but does not initialize by default (because of the new CTL_DISABLE
613 option) to save memory. To re-enable it, remove the CTL_DISABLE
614 option from the kernel config file or set kern.cam.ctl.disable=0
615 in /boot/loader.conf.
618 The ctl device has been disabled in GENERIC for i386 and amd64.
619 This was done due to the extra memory being allocated at system
620 initialisation time by the ctl driver which was only used if
621 a CAM target device was created. This makes a FreeBSD system
622 unusable on 128MB or less of RAM.
625 A new compression method (lz4) has been merged to -HEAD. Please
626 refer to zpool-features(7) for more information.
628 Please refer to the "ZFS notes" section of this file for information
629 on upgrading boot ZFS pools.
632 A BSD-licensed patch(1) variant has been added and is installed
633 as bsdpatch, being the GNU version the default patch.
634 To inverse the logic and use the BSD-licensed one as default,
635 while having the GNU version installed as gnupatch, rebuild
636 and install world with the WITH_BSD_PATCH knob set.
639 Due to the use of the new -l option to install(1) during build
640 and install, you must take care not to directly set the INSTALL
641 make variable in your /etc/make.conf, /etc/src.conf, or on the
642 command line. If you wish to use the -C flag for all installs
643 you may be able to add INSTALL+=-C to /etc/make.conf or
647 The install(1) option -M has changed meaning and now takes an
648 argument that is a file or path to append logs to. In the
649 unlikely event that -M was the last option on the command line
650 and the command line contained at least two files and a target
651 directory the first file will have logs appended to it. The -M
652 option served little practical purpose in the last decade so its
653 use is expected to be extremely rare.
656 After switching to Clang as the default compiler some users of ZFS
657 on i386 systems started to experience stack overflow kernel panics.
658 Please consider using 'options KSTACK_PAGES=4' in such configurations.
661 GEOM_LABEL now mangles label names read from file system metadata.
662 Mangling affect labels containing spaces, non-printable characters,
663 '%' or '"'. Device names in /etc/fstab and other places may need to
667 By default, only the 10 most recent kernel dumps will be saved. To
668 restore the previous behaviour (no limit on the number of kernel dumps
669 stored in the dump directory) add the following line to /etc/rc.conf:
674 With the addition of auditdistd(8), a new auditdistd user is now
675 required during installworld. "mergemaster -p" can be used to
676 add the user prior to installworld, as documented in the handbook.
679 The sin6_scope_id member variable in struct sockaddr_in6 is now
680 filled by the kernel before passing the structure to the userland via
681 sysctl or routing socket. This means the KAME-specific embedded scope
682 id in sin6_addr.s6_addr[2] is always cleared in userland application.
683 This behavior can be controlled by net.inet6.ip6.deembed_scopeid.
684 __FreeBSD_version is bumped to 1000025.
687 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default.
688 This means that the world and kernel will be compiled with clang
689 and that clang will be installed as /usr/bin/cc, /usr/bin/c++,
690 and /usr/bin/cpp. To disable this behavior and revert to building
691 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions
692 of current may need to bootstrap WITHOUT_CLANG first if the clang
693 build fails (its compatibility window doesn't extend to the 9 stable
697 The IPFIREWALL_FORWARD kernel option has been removed. Its
698 functionality now turned on by default.
701 The ZERO_COPY_SOCKET kernel option has been removed and
702 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP.
703 NB: SOCKET_SEND_COW uses the VM page based copy-on-write
704 mechanism which is not safe and may result in kernel crashes.
705 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current
706 driver supports disposeable external page sized mbuf storage.
707 Proper replacements for both zero-copy mechanisms are under
708 consideration and will eventually lead to complete removal
709 of the two kernel options.
712 The IPv4 network stack has been converted to network byte
713 order. The following modules need to be recompiled together
714 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4),
715 pf(4), ipfw(4), ng_ipfw(4), stf(4).
718 Support for non-MPSAFE filesystems was removed from VFS. The
719 VFS_VERSION was bumped, all filesystem modules shall be
723 All the non-MPSAFE filesystems have been disconnected from
724 the build. The full list includes: codafs, hpfs, ntfs, nwfs,
725 portalfs, smbfs, xfs.
728 The interface cloning API and ABI has changed. The following
729 modules need to be recompiled together with kernel:
730 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4),
731 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4),
732 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4).
735 The sdhci driver was split in two parts: sdhci (generic SD Host
736 Controller logic) and sdhci_pci (actual hardware driver).
737 No kernel config modifications are required, but if you
738 load sdhc as a module you must switch to sdhci_pci instead.
741 Import the FUSE kernel and userland support into base system.
744 The GNU sort(1) program has been removed since the BSD-licensed
745 sort(1) has been the default for quite some time and no serious
746 problems have been reported. The corresponding WITH_GNU_SORT
750 The pfil(9) API/ABI for AF_INET family has been changed. Packet
751 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled
755 The net80211(4) ABI has been changed to allow for improved driver
756 PS-POLL and power-save support. All wireless drivers need to be
757 recompiled to work with the new kernel.
760 The random(4) support for the VIA hardware random number
761 generator (`PADLOCK') is no longer enabled unconditionally.
762 Add the padlock_rng device in the custom kernel config if
763 needed. The GENERIC kernels on i386 and amd64 do include the
764 device, so the change only affects the custom kernel
768 The pf(4) packet filter ABI has been changed. pfctl(8) and
769 snmp_pf module need to be recompiled to work with new kernel.
772 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged
773 to -HEAD. Pools that have empty_bpobj in active state can not be
774 imported read-write with ZFS implementations that do not support
775 this feature. For more information read the zpool-features(5)
779 The sparc64 ZFS loader has been changed to no longer try to auto-
780 detect ZFS providers based on diskN aliases but now requires these
781 to be explicitly listed in the OFW boot-device environment variable.
784 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring
785 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are
786 configuration changes. Make sure to merge /etc/ssl/openssl.cnf.
789 The following sysctls and tunables have been renamed for consistency
790 with other variables:
791 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered
792 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered
795 The sort utility has been replaced with BSD sort. For now, GNU sort
796 is also available as "gnusort" or the default can be set back to
797 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be
798 installed as "bsdsort".
801 A new version of ZFS (pool version 5000) has been merged to -HEAD.
802 Starting with this version the old system of ZFS pool versioning
803 is superseded by "feature flags". This concept enables forward
804 compatibility against certain future changes in functionality of ZFS
805 pools. The first read-only compatible "feature flag" for ZFS pools
806 is named "com.delphix:async_destroy". For more information
807 read the new zpool-features(5) manual page.
808 Please refer to the "ZFS notes" section of this file for information
809 on upgrading boot ZFS pools.
812 The malloc(3) implementation embedded in libc now uses sources imported
813 as contrib/jemalloc. The most disruptive API change is to
814 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf,
815 delete it prior to installworld, and optionally re-create it using the
816 new format after rebooting. See malloc.conf(5) for details
817 (specifically the TUNING section and the "opt.*" entries in the MALLCTL
821 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb
822 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is
823 now spelled mips. This is to aid compatibility with third-party
824 software that expects this naming scheme in uname(3). Little-endian
825 settings are unchanged. If you are updating a big-endian mips64 machine
826 from before this change, you may need to set MACHINE_ARCH=mips64 in
827 your environment before the new build system will recognize your machine.
830 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported
834 Now unix domain sockets behave "as expected" on nullfs(5). Previously
835 nullfs(5) did not pass through all behaviours to the underlying layer,
836 as a result if we bound to a socket on the lower layer we could connect
837 only to the lower path; if we bound to the upper layer we could connect
838 only to the upper path. The new behavior is one can connect to both the
839 lower and the upper paths regardless what layer path one binds to.
842 The getifaddrs upgrade path broken with 20111215 has been restored.
843 If you have upgraded in between 20111215 and 20120209 you need to
844 recompile libc again with your kernel. You still need to recompile
845 world to be able to configure CARP but this restriction already
849 The set_rcvar() function has been removed from /etc/rc.subr. All
850 base and ports rc.d scripts have been updated, so if you have a
851 port installed with a script in /usr/local/etc/rc.d you can either
852 hand-edit the rcvar= line, or reinstall the port.
854 An easy way to handle the mass-update of /etc/rc.d:
855 rm /etc/rc.d/* && mergemaster -i
858 panic(9) now stops other CPUs in the SMP systems, disables interrupts
859 on the current CPU and prevents other threads from running.
860 This behavior can be reverted using the kern.stop_scheduler_on_panic
862 The new behavior can be incompatible with kern.sync_on_panic.
865 The carp(4) facility has been changed significantly. Configuration
866 of the CARP protocol via ifconfig(8) has changed, as well as format
867 of CARP events submitted to devd(8) has changed. See manual pages
868 for more information. The arpbalance feature of carp(4) is currently
869 not supported anymore.
871 Size of struct in_aliasreq, struct in6_aliasreq has changed. User
872 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8),
873 need to be recompiled.
876 The acpi_wmi(4) status device /dev/wmistat has been renamed to
880 The option VFS_ALLOW_NONMPSAFE option has been added in order to
881 explicitely support non-MPSAFE filesystems.
882 It is on by default for all supported platform at this present
886 The broken amd(4) driver has been replaced with esp(4) in the amd64,
887 i386 and pc98 GENERIC kernel configuration files.
890 sysinstall has been removed
893 The stable/9 branch created in subversion. This corresponds to the
894 RELENG_9 branch in CVS.
897 This commit modifies vfs_register() so that it uses a hash
898 calculation to set vfc_typenum, which is enabled by default.
899 The first time a system is booted after this change, the
900 vfc_typenum values will change for all file systems. The
901 main effect of this is a change to the NFS server file handles
902 for file systems that use vfc_typenum in their fsid, such as ZFS.
903 It will, however, prevent vfc_typenum from changing when file
904 systems are loaded in a different order for subsequent reboots.
905 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf
906 until you are ready to remount all NFS clients after a reboot.
909 Bump the shared library version numbers for libraries that
910 do not use symbol versioning, have changed the ABI compared
911 to stable/8 and which shared library version was not bumped.
912 Done as part of 9.0-RELEASE cycle.
915 During the merge of Capsicum features, the fget(9) KPI was modified.
916 This may require the rebuilding of out-of-tree device drivers --
917 issues have been reported specifically with the nVidia device driver.
918 __FreeBSD_version is bumped to 900041.
920 Also, there is a period between 20110811 and 20110814 where the
921 special devices /dev/{stdin,stdout,stderr} did not work correctly.
922 Building world from a kernel during that window may not work.
925 The packet filter (pf) code has been updated to OpenBSD 4.5.
926 You need to update userland tools to be in sync with kernel.
927 This update breaks backward compatibility with earlier pfsync(4)
928 versions. Care must be taken when updating redundant firewall setups.
931 The following sysctls and tunables are retired on x86 platforms:
933 machdep.hlt_logical_cpus
934 The following sysctl is retired:
935 machdep.hyperthreading_allowed
936 The sysctls were supposed to provide a way to dynamically offline and
937 online selected CPUs on x86 platforms, but the implementation has not
938 been reliable especially with SCHED_ULE scheduler.
939 machdep.hyperthreading_allowed tunable is still available to ignore
940 hyperthreading CPUs at OS level.
941 Individual CPUs can be disabled using hint.lapic.X.disabled tunable,
942 where X is an APIC ID of a CPU. Be advised, though, that disabling
943 CPUs in non-uniform fashion will result in non-uniform topology and
944 may lead to sub-optimal system performance with SCHED_ULE, which is
948 cpumask_t type is retired and cpuset_t is used in order to describe
952 Changes to ifconfig(8) for dynamic address family detection mandate
953 that you are running a kernel of 20110525 or later. Make sure to
954 follow the update procedure to boot a new kernel before installing
958 Support for sun4v architecture is officially dropped
961 Several KPI breaking changes have been committed to the mii(4) layer,
962 the PHY drivers and consequently some Ethernet drivers using mii(4).
963 This means that miibus.ko and the modules of the affected Ethernet
964 drivers need to be recompiled.
966 Note to kernel developers: Given that the OUI bit reversion problem
967 was fixed as part of these changes all mii(4) commits related to OUIs,
968 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific
969 handling, no longer can be merged verbatim to stable/8 and previous
973 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci'
974 into their kernel configurations along with 'device pci'.
977 The default NFS client is now the new NFS client, so fstype "newnfs"
978 is now "nfs" and the regular/old NFS client is now fstype "oldnfs".
979 Although mounts via fstype "nfs" will usually work without userland
980 changes, it is recommended that the mount(8) and mount_nfs(8)
981 commands be rebuilt from sources and that a link to mount_nfs called
982 mount_oldnfs be created. The new client is compiled into the
983 kernel with "options NFSCL" and this is needed for diskless root
984 file systems. The GENERIC kernel configs have been changed to use
985 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER.
986 To use the regular/old client, you can "mount -t oldnfs ...". For
987 a diskless root file system, you must also include a line like:
989 vfs.root.mountfrom="oldnfs:"
991 in the boot/loader.conf on the root fs on the NFS server to make
992 a diskless root fs use the old client.
995 The GENERIC kernels for all architectures now default to the new
996 CAM-based ATA stack. It means that all legacy ATA drivers were
997 removed and replaced by respective CAM drivers. If you are using
998 ATA device names in /etc/fstab or other places, make sure to update
999 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY,
1000 where 'Y's are the sequential numbers starting from zero for each type
1001 in order of detection, unless configured otherwise with tunables,
1002 see cam(4)). There will be symbolic links created in /dev/ to map
1003 old adX devices to the respective adaY. They should provide basic
1004 compatibility for file systems mounting in most cases, but they do
1005 not support old user-level APIs and do not have respective providers
1006 in GEOM. Consider using updated management tools with new device names.
1008 It is possible to load devices ahci, ata, siis and mvs as modules,
1009 but option ATA_CAM should remain in kernel configuration to make ata
1010 module work as CAM driver supporting legacy ATA controllers. Device ata
1011 still can be used in modular fashion (atacore + ...). Modules atadisk
1012 and atapi* are not used and won't affect operation in ATA_CAM mode.
1013 Note that to use CAM-based ATA kernel should include CAM devices
1014 scbus, pass, da (or explicitly ada), cd and optionally others. All of
1015 them are parts of the cam module.
1017 ataraid(4) functionality is now supported by the RAID GEOM class.
1018 To use it you can load geom_raid kernel module and use graid(8) tool
1019 for management. Instead of /dev/arX device names, use /dev/raid/rX.
1021 No kernel config options or code have been removed, so if a problem
1022 arises, please report it and optionally revert to the old ATA stack.
1023 In order to do it you can remove from the kernel config:
1028 , and instead add back:
1029 device atadisk # ATA disk drives
1030 device ataraid # ATA RAID drives
1031 device atapicd # ATAPI CDROM drives
1032 device atapifd # ATAPI floppy drives
1033 device atapist # ATAPI tape drives
1036 The default NFS server has been changed to the new server, which
1037 was referred to as the experimental server. If you need to switch
1038 back to the old NFS server, you must now put the "-o" option on
1039 both the mountd and nfsd commands. This can be done using the
1040 mountd_flags and nfs_server_flags rc.conf variables until an
1041 update to the rc scripts is committed, which is coming soon.
1044 The GNU Objective-C runtime library (libobjc), and other Objective-C
1045 related components have been removed from the base system. If you
1046 require an Objective-C library, please use one of the available ports.
1049 ath(4) has been split into bus- and device- modules. if_ath contains
1050 the HAL, the TX rate control and the network device code. if_ath_pci
1051 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb
1052 contains the AHB glue. Users need to load both if_ath_pci and if_ath
1053 in order to use ath on everything else.
1055 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only
1056 need to load if_ath and if_ath_pci for ath(4) operation.
1059 As part of the replacement of sysinstall, the process of building
1060 release media has changed significantly. For details, please re-read
1061 release(7), which has been updated to reflect the new build process.
1064 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This
1065 is the last available version under GPLv2. It brings a number of new
1066 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE
1067 4.1 and SSE 4.2), better support for powerpc64, a number of new
1068 directives, and lots of other small improvements. See the ChangeLog
1069 file in contrib/binutils for the full details.
1072 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868
1073 compliant, and will now use half of hash for authentication.
1074 This will break interoperability with all stacks (including all
1075 actual FreeBSD versions) who implement
1076 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for
1078 The only workaround with such peers is to use another HMAC
1079 algorithm for IPsec ("phase 2") authentication.
1082 Remove the uio_yield prototype and symbol. This function has
1083 been misnamed since it was introduced and should not be
1084 globally exposed with this name. The equivalent functionality
1085 is now available using kern_yield(curthread->td_user_pri).
1086 The function remains undocumented.
1089 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers,
1090 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking
1091 for scalar sysctls is defined but disabled. Code that needs
1092 UQUAD to pass the type checking that must compile on older
1093 systems where the define is not present can check against
1094 __FreeBSD_version >= 900030.
1096 The system dialog(1) has been replaced with a new version previously
1097 in ports as devel/cdialog. dialog(1) is mostly command-line compatible
1098 with the previous version, but the libdialog associated with it has
1099 a largely incompatible API. As such, the original version of libdialog
1100 will be kept temporarily as libodialog, until its base system consumers
1101 are replaced or updated. Bump __FreeBSD_version to 900030.
1104 If you are trying to run make universe on a -stable system, and you get
1105 the following warning:
1106 "Makefile", line 356: "Target architecture for i386/conf/GENERIC
1107 unknown. config(8) likely too old."
1108 or something similar to it, then you must upgrade your -stable system
1109 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in
1110 stable/8) or build the config from the latest stable/8 branch and
1111 install it on your system.
1113 Prior to this date, building a current universe on 8-stable system from
1114 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing
1115 error in the first kernel build phase. A new config on those old
1116 systems will fix that problem for older versions of -current.
1119 The TCP stack has been modified to allow Khelp modules to interact with
1120 it via helper hook points and store per-connection data in the TCP
1121 control block. Bump __FreeBSD_version to 900029. User space tools that
1122 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to
1126 Generic IEEE 802.3 annex 31B full duplex flow control support has been
1127 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along
1128 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted
1129 to take advantage of it instead of using custom implementations. This
1130 means that these drivers now no longer unconditionally advertise
1131 support for flow control but only do so if flow control is a selected
1132 media option. This was implemented in the generic support that way in
1133 order to allow flow control to be switched on and off via ifconfig(8)
1134 with the PHY specific default to typically off in order to protect
1135 from unwanted effects. Consequently, if you used flow control with
1136 one of the above mentioned drivers you now need to explicitly enable
1137 it, for example via:
1138 ifconfig bge0 media auto mediaopt flowcontrol
1140 Along with the above mentioned changes generic support for setting
1141 1000baseT master mode also has been added and brgphy(4), ciphy(4),
1142 e1000phy(4) as well as ip1000phy(4) have been converted to take
1143 advantage of it. This means that these drivers now no longer take the
1144 link0 parameter for selecting master mode but the master media option
1145 has to be used instead, for example like in the following:
1146 ifconfig bge0 media 1000baseT mediaopt full-duplex,master
1148 Selection of master mode now is also available with all other PHY
1149 drivers supporting 1000baseT.
1152 The TCP stack has received a significant update to add support for
1153 modularised congestion control and generally improve the clarity of
1154 congestion control decisions. Bump __FreeBSD_version to 900025. User
1155 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g.
1156 sockstat) need to be recompiled.
1159 The man(1) utility has been replaced by a new version that no longer
1160 uses /etc/manpath.config. Please consult man.conf(5) for how to
1161 migrate local entries to the new format.
1164 The copyright strings printed by login(1) and sshd(8) at the time of a
1165 new connection have been removed to follow other operating systems and
1169 A workaround for a fixed ld bug has been removed in kernel code,
1170 so make sure that your system ld is built from sources after
1171 revision 210245 from 2010-07-19 (r211583 if building head kernel
1172 on stable/8, r211584 for stable/7; both from 2010-08-21).
1173 A symptom of incorrect ld version is different addresses for
1174 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules.
1177 The $ipv6_prefer variable in rc.conf(5) has been split into
1178 $ip6addrctl_policy and $ipv6_activate_all_interfaces.
1180 The $ip6addrctl_policy is a variable to choose a pre-defined
1181 address selection policy set by ip6addrctl(8). A value
1182 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The
1185 The $ipv6_activate_all_interfaces specifies whether IFDISABLED
1186 flag (see an entry of 20090926) is set on an interface with no
1187 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for
1188 security reason. If you want IPv6 link-local address on all
1189 interfaces by default, set this to "YES".
1191 The old ipv6_prefer="YES" is equivalent to
1192 ipv6_activate_all_interfaces="YES" and
1193 ip6addrctl_policy="ipv6_prefer".
1196 DTrace has grown support for userland tracing. Due to this, DTrace is
1197 now i386 and amd64 only.
1198 dtruss(1) is now installed by default on those systems and a new
1199 kernel module is needed for userland tracing: fasttrap.
1200 No changes to your kernel config file are necessary to enable
1201 userland tracing, but you might consider adding 'STRIP=' and
1202 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want
1203 to have informative userland stack traces in DTrace (ustack).
1206 The acpi_aiboost(4) driver has been removed in favor of the new
1207 aibs(4) driver. You should update your kernel configuration file.
1210 BSD grep has been imported to the base system and it is built by
1211 default. It is completely BSD licensed, highly GNU-compatible, uses
1212 less memory than its GNU counterpart and has a small codebase.
1213 However, it is slower than its GNU counterpart, which is mostly
1214 noticeable for larger searches, for smaller ones it is measurable
1215 but not significant. The reason is complex, the most important factor
1216 is that we lack a modern and efficient regex library and GNU
1217 overcomes this by optimizing the searches internally. Future work
1218 on improving the regex performance is planned, for the meantime,
1219 users that need better performance, can build GNU grep instead by
1220 setting the WITH_GNU_GREP knob.
1223 Due to the import of powerpc64 support, all existing powerpc kernel
1224 configuration files must be updated with a machine directive like this:
1225 machine powerpc powerpc
1227 In addition, an updated config(8) is required to build powerpc kernels
1231 A new version of ZFS (version 15) has been merged to -HEAD.
1232 This version uses a python library for the following subcommands:
1233 zfs allow, zfs unallow, zfs groupspace, zfs userspace.
1234 For full functionality of these commands the following port must
1235 be installed: sysutils/py-zfs
1238 'vm_page's are now hashed by physical address to an array of mutexes.
1239 Currently this is only used to serialize access to hold_count. Over
1240 time the page queue mutex will be peeled away. This changes the size
1241 of pmap on every architecture. And requires all callers of vm_page_hold
1242 and vm_page_unhold to be updated.
1245 WITH_CTF can now be specified in src.conf (not recommended, there
1246 are some problems with static executables), make.conf (would also
1247 affect ports which do not use GNU make and do not override the
1248 compile targets) or in the kernel config (via "makeoptions
1250 When WITH_CTF was specified there before this was silently ignored,
1251 so make sure that WITH_CTF is not used in places which could lead
1252 to unwanted behavior.
1255 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32
1256 to allow 32-bit compatibility on non-x86 platforms. All kernel
1257 configurations on amd64 and ia64 platforms using these options must
1258 be modified accordingly.
1261 The utmp user accounting database has been replaced with utmpx,
1262 the user accounting interface standardized by POSIX.
1263 Unfortunately the semantics of utmp and utmpx don't match,
1264 making it practically impossible to support both interfaces.
1265 The user accounting database is used by tools like finger(1),
1266 last(1), talk(1), w(1) and ac(8).
1268 All applications in the base system use utmpx. This means only
1269 local binaries (e.g. from the ports tree) may still use these
1270 utmp database files. These applications must be rebuilt to make
1273 After the system has been upgraded, it is safe to remove the old
1274 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*),
1275 assuming their contents is of no importance anymore. Old wtmp
1276 databases can only be used by last(1) and ac(8) after they have
1277 been converted to the new format using wtmpcvt(1).
1280 Introduce the kernel thread "deadlock resolver" (which can be enabled
1281 via the DEADLKRES option, see NOTES for more details) and the
1282 sleepq_type() function for sleepqueues.
1285 The rc.firewall and rc.firewall6 were unified, and
1286 rc.firewall6 and rc.d/ip6fw were removed.
1287 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc
1288 variables are obsoleted. Instead, the following new rc
1289 variables are added to rc.d/ipfw:
1291 firewall_client_net_ipv6, firewall_simple_iif_ipv6,
1292 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6,
1293 firewall_simple_onet_ipv6, firewall_trusted_ipv6
1295 The meanings correspond to the relevant IPv4 variables.
1301 The default terminal emulation for syscons(4) has been changed
1302 from cons25 to xterm on all platforms except pc98. This means
1303 that the /etc/ttys file needs to be updated to ensure correct
1304 operation of applications on the console.
1306 The terminal emulation style can be toggled per window by using
1307 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration
1308 options can be used to change the compile-time default back to
1311 To prevent graphical artifacts, make sure the TERM environment
1312 variable is set to match the terminal emulation that is being
1313 performed by syscons(4).
1316 The layout of the structure ieee80211req_scan_result has changed.
1317 Applications that require wireless scan results (e.g. ifconfig(8))
1318 from net80211 need to be recompiled.
1320 Applications such as wpa_supplicant(8) may require a full world
1321 build without using NO_CLEAN in order to get synchronized with the
1325 The iwn(4) driver has been updated to support the 5000 and 5150 series.
1326 There's one kernel module for each firmware. Adding "device iwnfw"
1327 to the kernel configuration file means including all three firmware
1328 images inside the kernel. If you want to include just the one for
1329 your wireless card, use the devices iwn4965fw, iwn5000fw or
1333 The rc.d/network_ipv6, IPv6 configuration script has been integrated
1334 into rc.d/netif. The changes are the following:
1336 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF
1337 for IPv4. For aliases, $ifconfig_IF_aliasN should be used.
1338 Note that both variables need the "inet6" keyword at the head.
1340 Do not set $ipv6_network_interfaces manually if you do not
1341 understand what you are doing. It is not needed in most cases.
1343 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but
1346 2. $ipv6_enable is obsolete. Use $ipv6_prefer and
1347 "inet6 accept_rtadv" keyword in ifconfig(8) instead.
1349 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and
1350 all configured interfaces have "inet6 accept_rtadv" in the
1351 $ifconfig_IF_ipv6. These are for backward compatibility.
1353 3. A new variable $ipv6_prefer has been added. If NO, IPv6
1354 functionality of interfaces with no corresponding
1355 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag,
1356 and the default address selection policy of ip6addrctl(8)
1357 is the IPv4-preferred one (see rc.d/ip6addrctl for more details).
1358 Note that if you want to configure IPv6 functionality on the
1359 disabled interfaces after boot, first you need to clear the flag by
1360 using ifconfig(8) like:
1362 ifconfig em0 inet6 -ifdisabled
1364 If YES, the default address selection policy is set as
1367 The default value of $ipv6_prefer is NO.
1369 4. If your system need to receive Router Advertisement messages,
1370 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8)
1371 scripts automatically invoke rtsol(8) when the interface becomes
1372 UP. The Router Advertisement messages are used for SLAAC
1373 (State-Less Address AutoConfiguration).
1376 802.11s D3.03 support was committed. This is incompatible with the
1377 previous code, which was based on D3.0.
1380 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value
1381 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to
1382 control whether accepting Router Advertisement messages or not.
1383 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and
1384 a sysctl variable net.inet6.ip6.auto_linklocal is its default value.
1385 The ifconfig(8) utility now supports these flags.
1388 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
1389 mount(8) and -a option for df(1) to see them.
1392 The old tunable hw.bus.devctl_disable has been superseded by
1393 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be
1394 replaced by hw.bus.devctl_queue=0. The default for this new tunable
1398 Remove the option STOP_NMI. The default action is now to use NMI only
1399 for KDB via the newly introduced function stop_cpus_hard() and
1400 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64.
1403 The stable/8 branch created in subversion. This corresponds to the
1404 RELENG_8 branch in CVS.
1407 Bump the shared library version numbers for all libraries that do not
1408 use symbol versioning as part of the 8.0-RELEASE cycle. Bump
1409 __FreeBSD_version to 800105.
1412 Due to changes in the implementation of virtual network stack support,
1413 all network-related kernel modules must be recompiled. As this change
1414 breaks the ABI, bump __FreeBSD_version to 800104.
1417 The TOE interface to the TCP syncache has been modified to remove
1418 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack.
1419 The cxgb driver is the only TOE consumer affected by this change, and
1420 needs to be recompiled along with the kernel. As this change breaks
1421 the ABI, bump __FreeBSD_version to 800103.
1424 Padding has been added to struct tcpcb, sackhint and tcpstat in
1425 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
1426 maintaining the ABI. However, this change breaks the ABI, so bump
1427 __FreeBSD_version to 800102. User space tools that rely on the size of
1428 any of these structs (e.g. sockstat) need to be recompiled.
1431 The NFS_LEGACYRPC option has been removed along with the old kernel
1432 RPC implementation that this option selected. Kernel configurations
1433 may need to be adjusted.
1436 The network interface device nodes at /dev/net/<interface> have been
1437 removed. All ioctl operations can be performed the normal way using
1438 routing sockets. The kqueue functionality can generally be replaced
1439 with routing sockets.
1442 The documentation from the FreeBSD Documentation Project (Handbook,
1443 FAQ, etc.) is now installed via packages by sysinstall(8) and under
1444 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc.
1447 The ABI of various structures related to the SYSV IPC API have been
1448 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel
1449 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to
1453 Layout of struct vnet has changed as routing related variables were
1454 moved to their own Vimage module. Modules need to be recompiled. Bump
1455 __FreeBSD_version to 800099.
1458 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024
1459 respectively. As long as no more than 16 groups per process are used,
1460 no changes should be visible. When more than 16 groups are used, old
1461 binaries may fail if they call getgroups() or getgrouplist() with
1462 statically sized storage. Recompiling will work around this, but
1463 applications should be modified to use dynamically allocated storage
1464 for group arrays as POSIX.1-2008 does not cap an implementation's
1465 number of supported groups at NGROUPS_MAX+1 as previous versions did.
1467 NFS and portalfs mounts may also be affected as the list of groups is
1468 truncated to 16. Users of NFS who use more than 16 groups, should
1469 take care that negative group permissions are not used on the exported
1470 file systems as they will not be reliable unless a GSSAPI based
1471 authentication method is used.
1474 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This
1475 option compiles in the support for adaptive spinning for lockmgrs
1476 which want to enable it. The lockinit() function now accepts the flag
1477 LK_ADAPTIVE in order to make the lock object subject to adaptive
1478 spinning when both held in write and read mode.
1481 The layout of the structure returned by IEEE80211_IOC_STA_INFO has
1482 changed. User applications that use this ioctl need to be rebuilt.
1485 The layout of struct thread has changed. Kernel and modules need to
1489 The layout of structs ifnet, domain, protosw and vnet_net has changed.
1490 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097.
1493 window(1) has been removed from the base system. It can now be
1494 installed from ports. The port is called misc/window.
1497 The way we are storing and accessing `routing table' entries has
1498 changed. Programs reading the FIB, like netstat, need to be
1502 A new netisr implementation has been added for FreeBSD 8. Network
1503 file system modules, such as igmp, ipdivert, and others, should be
1505 Bump __FreeBSD_version to 800096.
1508 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no
1512 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
1513 Bump __FreeBSD_version to 800094.
1516 Add mnt_xflag field to 'struct mount'. File system modules need to be
1518 Bump __FreeBSD_version to 800093.
1521 The compiling option ADAPTIVE_SX has been retired while it has been
1522 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
1523 The KPI for sx_init_flags() changes as accepting flags:
1524 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has
1525 been introduced in order to handle the reversed logic.
1526 Bump __FreeBSD_version to 800092.
1529 Add support for hierarchical jails. Remove global securelevel.
1530 Bump __FreeBSD_version to 800091.
1533 The layout of struct vnet_net has changed, therefore modules
1535 Bump __FreeBSD_version to 800090.
1538 The newly imported zic(8) produces a new format in the output. Please
1539 run tzsetup(8) to install the newly created data to /etc/localtime.
1542 The sysctl tree for the usb stack has renamed from hw.usb2.* to
1543 hw.usb.* and is now consistent again with previous releases.
1546 802.11 monitor mode support was revised and driver api's were changed.
1547 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead
1548 of DLT_IEEE802_11. No user-visible data structures were changed but
1549 applications that use DLT_IEEE802_11 may require changes.
1550 Bump __FreeBSD_version to 800088.
1553 The layout of the following structs has changed: sysctl_oid,
1554 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
1555 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
1556 panics may be experienced. World rebuild is required for
1557 correctly checking networking state from userland.
1558 Bump __FreeBSD_version to 800085.
1561 MLDv2 and Source-Specific Multicast (SSM) have been merged
1562 to the IPv6 stack. VIMAGE hooks are in but not yet used.
1563 The implementation of SSM within FreeBSD's IPv6 stack closely
1564 follows the IPv4 implementation.
1566 For kernel developers:
1568 * The most important changes are that the ip6_output() and
1569 ip6_input() paths no longer take the IN6_MULTI_LOCK,
1570 and this lock has been downgraded to a non-recursive mutex.
1572 * As with the changes to the IPv4 stack to support SSM, filtering
1573 of inbound multicast traffic must now be performed by transport
1574 protocols within the IPv6 stack. This does not apply to TCP and
1575 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
1577 * The KPIs used by IPv6 multicast are similar to those used by
1578 the IPv4 stack, with the following differences:
1579 * im6o_mc_filter() is analogous to imo_multicast_filter().
1580 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
1581 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
1582 * IN6_LOOKUP_MULTI() has been deprecated and removed.
1583 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
1584 for MLDv1 have an additional 'timer' argument which is used to
1585 jitter the initial membership report for the solicited-node
1586 multicast membership on-link.
1587 * This is not strictly needed for MLDv2, which already jitters
1588 its report transmissions. However, the 'timer' argument is
1589 preserved in case MLDv1 is active on the interface.
1591 * The KAME linked-list based IPv6 membership implementation has
1592 been refactored to use a vector similar to that used by the IPv4
1594 Code which maintains a list of its own multicast memberships
1595 internally, e.g. carp, has been updated to reflect the new
1598 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
1599 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
1600 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
1601 implementation constraint which needs to be addressed in HEAD.
1603 For application developers:
1605 * The changes are broadly similar to those made for the IPv4
1608 * The use of IPv4 and IPv6 multicast socket options on the same
1609 socket, using mapped addresses, HAS NOT been tested or supported.
1611 * There are a number of issues with the implementation of various
1612 IPv6 multicast APIs which need to be resolved in the API surface
1613 before the implementation is fully compatible with KAME userland
1614 use, and these are mostly to do with interface index treatment.
1616 * The literature available discusses the use of either the delta / ASM
1617 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
1618 using setsourcefilter(3)/getsourcefilter(3). For more information
1619 please refer to RFC 3768, 'Socket Interface Extensions for
1620 Multicast Source Filters'.
1622 * Applications which use the published RFC 3678 APIs should be fine.
1624 For systems administrators:
1626 * The mtest(8) utility has been refactored to support IPv6, in
1627 addition to IPv4. Interface addresses are no longer accepted
1628 as arguments, their names must be used instead. The utility
1629 will map the interface name to its first IPv4 address as
1630 returned by getifaddrs(3).
1632 * The ifmcstat(8) utility has also been updated to print the MLDv2
1633 endpoint state and source filter lists via sysctl(3).
1635 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
1636 loopback of IPv6 multicast datagrams by default; it defaults to 1
1637 to preserve the existing behaviour. Disabling multicast loopback is
1638 recommended for optimal system performance.
1640 * The IPv6 MROUTING code has been changed to examine this sysctl
1641 instead of attempting to perform a group lookup before looping
1642 back forwarded datagrams.
1644 Bump __FreeBSD_version to 800084.
1647 Implement low-level Bluetooth HCI API.
1648 Bump __FreeBSD_version to 800083.
1651 The layout of struct malloc_type, used by modules to register new
1652 memory allocation types, has changed. Most modules will need to
1653 be rebuilt or panics may be experienced.
1654 Bump __FreeBSD_version to 800081.
1657 Anticipate overflowing inp_flags - add inp_flags2.
1658 This changes most offsets in inpcb, so checking v4 connection
1659 state will require a world rebuild.
1660 Bump __FreeBSD_version to 800080.
1663 Add an llentry to struct route and struct route_in6. Modules
1664 embedding a struct route will need to be recompiled.
1665 Bump __FreeBSD_version to 800079.
1668 The size of rt_metrics_lite and by extension rtentry has changed.
1669 Networking administration apps will need to be recompiled.
1670 The route command now supports show as an alias for get, weighting
1671 of routes, sticky and nostick flags to alter the behavior of stateful
1673 Bump __FreeBSD_version to 800078.
1676 Do not use Giant for kbdmux(4) locking. This is wrong and
1677 apparently causing more problems than it solves. This will
1678 re-open the issue where interrupt handlers may race with
1679 kbdmux(4) in polling mode. Typical symptoms include (but
1680 not limited to) duplicated and/or missing characters when
1681 low level console functions (such as gets) are used while
1682 interrupts are enabled (for example geli password prompt,
1683 mountroot prompt etc.). Disabling kbdmux(4) may help.
1686 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
1687 kernel modules referencing any of the above need to be recompiled.
1688 Bump __FreeBSD_version to 800075.
1691 GEOM_PART has become the default partition slicer for storage devices,
1692 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
1693 introduces some changes:
1695 MSDOS/EBR: the devices created from MSDOS extended partition entries
1696 (EBR) can be named differently than with GEOM_MBR and are now symlinks
1697 to devices with offset-based names. fstabs may need to be modified.
1699 BSD: the "geometry does not match label" warning is harmless in most
1700 cases but it points to problems in file system misalignment with
1701 disk geometry. The "c" partition is now implicit, covers the whole
1702 top-level drive and cannot be (mis)used by users.
1704 General: Kernel dumps are now not allowed to be written to devices
1705 whose partition types indicate they are meant to be used for file
1706 systems (or, in case of MSDOS partitions, as something else than
1709 Most of these changes date approximately from 200812.
1712 The uscanner(4) driver has been removed from the kernel. This follows
1713 Linux removing theirs in 2.6 and making libusb the default interface
1714 (supported by sane).
1717 The multicast forwarding code has been cleaned up. netstat(1)
1718 only relies on KVM now for printing bandwidth upcall meters.
1719 The IPv4 and IPv6 modules are split into ip_mroute_mod and
1720 ip6_mroute_mod respectively. The config(5) options for statically
1721 compiling this code remain the same, i.e. 'options MROUTING'.
1724 Support for the IFF_NEEDSGIANT network interface flag has been
1725 removed, which means that non-MPSAFE network device drivers are no
1726 longer supported. In particular, if_ar, if_sr, and network device
1727 drivers from the old (legacy) USB stack can no longer be built or
1731 POSIX.1 Native Language Support (NLS) has been enabled in libc and
1732 a bunch of new language catalog files have also been added.
1733 This means that some common libc messages are now localized and
1734 they depend on the LC_MESSAGES environmental variable.
1737 The k8temp(4) driver has been renamed to amdtemp(4) since
1738 support for Family 10 and Family 11 CPU families was added.
1741 IGMPv3 and Source-Specific Multicast (SSM) have been merged
1742 to the IPv4 stack. VIMAGE hooks are in but not yet used.
1744 For kernel developers, the most important changes are that the
1745 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
1746 and this lock has been downgraded to a non-recursive mutex.
1748 Transport protocols (UDP, Raw IP) are now responsible for filtering
1749 inbound multicast traffic according to group membership and source
1750 filters. The imo_multicast_filter() KPI exists for this purpose.
1751 Transports which do not use multicast (SCTP, TCP) already reject
1752 multicast by default. Forwarding and receive performance may improve
1753 as a mutex acquisition is no longer needed in the ip_input()
1754 low-level input path. in_addmulti() and in_delmulti() are shimmed
1755 to new KPIs which exist to support SSM in-kernel.
1757 For application developers, it is recommended that loopback of
1758 multicast datagrams be disabled for best performance, as this
1759 will still cause the lock to be taken for each looped-back
1760 datagram transmission. The net.inet.ip.mcast.loop sysctl may
1761 be tuned to 0 to disable loopback by default; it defaults to 1
1762 to preserve the existing behaviour.
1764 For systems administrators, to obtain best performance with
1765 multicast reception and multiple groups, it is always recommended
1766 that a card with a suitably precise hash filter is used. Hash
1767 collisions will still result in the lock being taken within the
1768 transport protocol input path to check group membership.
1770 If deploying FreeBSD in an environment with IGMP snooping switches,
1771 it is recommended that the net.inet.igmp.sendlocal sysctl remain
1772 enabled; this forces 224.0.0.0/24 group membership to be announced
1775 The size of 'struct igmpstat' has changed; netstat needs to be
1776 recompiled to reflect this.
1777 Bump __FreeBSD_version to 800070.
1780 libusb20.so.1 is now installed as libusb.so.1 and the ports system
1781 updated to use it. This requires a buildworld/installworld in order to
1782 update the library and dependencies (usbconfig, etc). Its advisable to
1783 rebuild all ports which uses libusb. More specific directions are given
1784 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
1785 libusb are no longer required and can be removed.
1788 A workaround is committed to allow the creation of System V shared
1789 memory segment of size > 2 GB on the 64-bit architectures.
1790 Due to a limitation of the existing ABI, the shm_segsz member
1791 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
1792 wrong for large segments. Note that limits must be explicitly
1793 raised to allow such segments to be created.
1796 The layout of struct ifnet has changed, requiring a rebuild of all
1797 network device driver modules.
1800 The /dev handling for the new USB stack has changed, a
1801 buildworld/installworld is required for libusb20.
1804 The new USB2 stack has now been permanently moved in and all kernel and
1805 module names reverted to their previous values (eg, usb, ehci, ohci,
1806 ums, ...). The old usb stack can be compiled in by prefixing the name
1807 with the letter 'o', the old usb modules have been removed.
1808 Updating entry 20090216 for xorg and 20090215 for libmap may still
1812 The rc.conf(5) option if_up_delay has been renamed to
1813 defaultroute_delay to better reflect its purpose. If you have
1814 customized this setting in /etc/rc.conf you need to update it to
1818 xorg 7.4 wants to configure its input devices via hald which does not
1819 yet work with USB2. If the keyboard/mouse does not work in xorg then
1821 Option "AllowEmptyInput" "off"
1822 to your ServerLayout section. This will cause X to use the configured
1823 kbd and mouse sections from your xorg.conf.
1826 The GENERIC kernels for all architectures now default to the new USB2
1827 stack. No kernel config options or code have been removed so if a
1828 problem arises please report it and optionally revert to the old USB
1829 stack. If you are loading USB kernel modules or have a custom kernel
1830 that includes GENERIC then ensure that usb names are also changed over,
1831 eg uftdi -> usb2_serial_ftdi.
1833 Older programs linked against the ports libusb 0.1 need to be
1834 redirected to the new stack's libusb20. /etc/libmap.conf can
1836 # Map old usb library to new one for usb2 stack
1837 libusb-0.1.so.8 libusb20.so.1
1840 All USB ethernet devices now attach as interfaces under the name ueN
1841 (eg. ue0). This is to provide a predictable name as vendors often
1842 change usb chipsets in a product without notice.
1845 The ichsmb(4) driver has been changed to require SMBus slave
1846 addresses be left-justified (xxxxxxx0b) rather than right-justified.
1847 All of the other SMBus controller drivers require left-justified
1848 slave addresses, so this change makes all the drivers provide the
1852 INET6 statistics (struct ip6stat) was updated.
1853 netstat(1) needs to be recompiled.
1856 NTFS has been removed from GENERIC kernel on amd64 to match
1857 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
1858 will load ntfs.ko module automatically when NTFS support is
1859 actually needed, unless ntfs.ko is not installed or security
1860 level prohibits loading kernel modules. If either is the case,
1861 "options NTFS" has to be added into kernel config.
1864 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
1865 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
1866 800061. User space tools that rely on the size of struct tcpcb in
1867 tcp_var.h (e.g. sockstat) need to be recompiled.
1870 ng_tty(4) module updated to match the new TTY subsystem.
1871 Due to API change, user-level applications must be updated.
1872 New API support added to mpd5 CVS and expected to be present
1873 in next mpd5.3 release.
1876 With __FreeBSD_version 800060 the makefs tool is part of
1877 the base system (it was a port).
1880 The afdata and ifnet locks have been changed from mutexes to
1881 rwlocks, network modules will need to be re-compiled.
1884 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
1885 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
1886 The new code reduced struct rtentry{} by 16 bytes on 32-bit
1887 architecture and 40 bytes on 64-bit architecture. The userland
1888 applications "arp" and "ndp" have been updated accordingly.
1889 The output from "netstat -r" shows only routing entries and
1890 none of the L2 information.
1893 __FreeBSD_version 800057 marks the switchover from the
1894 binary ath hal to source code. Users must add the line:
1896 options AH_SUPPORT_AR5416
1898 to their kernel config files when specifying:
1902 The ath_hal module no longer exists; the code is now compiled
1903 together with the driver in the ath module. It is now
1904 possible to tailor chip support (i.e. reduce the set of chips
1905 and thereby the code size); consult ath_hal(4) for details.
1908 __FreeBSD_version 800054 adds memory barriers to
1909 <machine/atomic.h>, new interfaces to ifnet to facilitate
1910 multiple hardware transmit queues for cards that support
1911 them, and a lock-less ring-buffer implementation to
1912 enable drivers to more efficiently manage queueing of
1916 A new version of ZFS (version 13) has been merged to -HEAD.
1917 This version has zpool attribute "listsnapshots" off by
1918 default, which means "zfs list" does not show snapshots,
1919 and is the same as Solaris behavior.
1922 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
1925 The uhci, ohci, ehci and slhci USB Host controller drivers have
1926 been put into separate modules. If you load the usb module
1927 separately through loader.conf you will need to load the
1928 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
1929 controller add the following to loader.conf:
1935 The ABI used by the PMC toolset has changed. Please keep
1936 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
1940 atapci kernel module now includes only generic PCI ATA
1941 driver. AHCI driver moved to ataahci kernel module.
1942 All vendor-specific code moved into separate kernel modules:
1943 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
1944 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
1945 atamarvell, atamicron, atanational, atanetcell, atanvidia,
1946 atapromise, ataserverworks, atasiliconimage, atasis, atavia
1949 The TTY subsystem of the kernel has been replaced by a new
1950 implementation, which provides better scalability and an
1951 improved driver model. Most common drivers have been migrated to
1952 the new TTY subsystem, while others have not. The following
1953 drivers have not yet been ported to the new TTY layer:
1956 cy, digi, rc, rp, sio
1962 ng_h4, ng_tty, ppp, sl, snp
1964 Adding these drivers to your kernel configuration file shall
1965 cause compilation to fail.
1968 ntpd has been upgraded to 4.2.4p5.
1971 OpenSSH has been upgraded to 5.1p1.
1973 For many years, FreeBSD's version of OpenSSH preferred DSA
1974 over RSA for host and user authentication keys. With this
1975 upgrade, we've switched to the vendor's default of RSA over
1976 DSA. This may cause upgraded clients to warn about unknown
1977 host keys even for previously known hosts. Users should
1978 follow the usual procedure for verifying host keys before
1979 accepting the RSA key.
1981 This can be circumvented by setting the "HostKeyAlgorithms"
1982 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
1985 Please note that the sequence of keys offered for
1986 authentication has been changed as well. You may want to
1987 specify IdentityFile in a different order to revert this
1991 The sio(4) driver has been removed from the i386 and amd64
1992 kernel configuration files. This means uart(4) is now the
1993 default serial port driver on those platforms as well.
1995 To prevent collisions with the sio(4) driver, the uart(4) driver
1996 uses different names for its device nodes. This means the
1997 onboard serial port will now most likely be called "ttyu0"
1998 instead of "ttyd0". You may need to reconfigure applications to
1999 use the new device names.
2001 When using the serial port as a boot console, be sure to update
2002 /boot/device.hints and /etc/ttys before booting the new kernel.
2003 If you forget to do so, you can still manually specify the hints
2004 at the loader prompt:
2006 set hint.uart.0.at="isa"
2007 set hint.uart.0.port="0x3F8"
2008 set hint.uart.0.flags="0x10"
2009 set hint.uart.0.irq="4"
2013 The gpt(8) utility has been removed. Use gpart(8) to partition
2017 The version that Linuxulator emulates was changed from 2.4.2
2018 to 2.6.16. If you experience any problems with Linux binaries
2019 please try to set sysctl compat.linux.osrelease to 2.4.2 and
2020 if it fixes the problem contact emulation mailing list.
2023 ISDN4BSD (I4B) was removed from the src tree. You may need to
2024 update a your kernel configuration and remove relevant entries.
2027 I have checked in code to support multiple routing tables.
2028 See the man pages setfib(1) and setfib(2).
2029 This is a hopefully backwards compatible version,
2030 but to make use of it you need to compile your kernel
2031 with options ROUTETABLES=2 (or more up to 16).
2034 The 802.11 wireless support was redone to enable multi-bss
2035 operation on devices that are capable. The underlying device
2036 is no longer used directly but instead wlanX devices are
2037 cloned with ifconfig. This requires changes to rc.conf files.
2038 For example, change:
2039 ifconfig_ath0="WPA DHCP"
2042 ifconfig_wlan0="WPA DHCP"
2043 see rc.conf(5) for more details. In addition, mergemaster of
2044 /etc/rc.d is highly recommended. Simultaneous update of userland
2045 and kernel wouldn't hurt either.
2047 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
2048 modules were merged into the base wlan module. All references
2049 to these modules (e.g. in kernel config files) must be removed.
2052 psm(4) has gained write(2) support in native operation level.
2053 Arbitrary commands can be written to /dev/psm%d and status can
2054 be read back from it. Therefore, an application is responsible
2055 for status validation and error recovery. It is a no-op in
2056 other operation levels.
2059 Support for KSE threading has been removed from the kernel. To
2060 run legacy applications linked against KSE libmap.conf may
2061 be used. The following libmap.conf may be used to ensure
2062 compatibility with any prior release:
2064 libpthread.so.1 libthr.so.1
2065 libpthread.so.2 libthr.so.2
2066 libkse.so.3 libthr.so.3
2069 The layout of struct vmspace has changed. This affects libkvm
2070 and any executables that link against libkvm and use the
2071 kvm_getprocs() function. In particular, but not exclusively,
2072 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
2073 The effects are minimal, but it's advisable to upgrade world
2077 The latest em driver no longer has support in it for the
2078 82575 adapter, this is now moved to the igb driver. The
2079 split was done to make new features that are incompatible
2080 with older hardware easier to do.
2083 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
2084 likewise the kernel option is now GEOM_LINUX_LVM.
2087 The default NFS mount mode has changed from UDP to TCP for
2088 increased reliability. If you rely on (insecurely) NFS
2089 mounting across a firewall you may need to update your
2093 Belatedly note the addition of m_collapse for compacting
2097 The fts(3) structures have been changed to use adequate
2098 integer types for their members and so to be able to cope
2099 with huge file trees. The old fts(3) ABI is preserved
2100 through symbol versioning in libc, so third-party binaries
2101 using fts(3) should still work, although they will not take
2102 advantage of the extended types. At the same time, some
2103 third-party software might fail to build after this change
2104 due to unportable assumptions made in its source code about
2105 fts(3) structure members. Such software should be fixed
2106 by its vendor or, in the worst case, in the ports tree.
2107 FreeBSD_version 800015 marks this change for the unlikely
2108 case that a portable fix is impossible.
2111 To upgrade to -current after this date, you must be running
2112 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
2113 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
2116 The ADAPTIVE_GIANT kernel option has been retired because its
2117 functionality is the default now.
2120 The AT keyboard emulation of sunkbd(4) has been turned on
2121 by default. In order to make the special symbols of the Sun
2122 keyboards driven by sunkbd(4) work under X these now have
2123 to be configured the same way as Sun USB keyboards driven
2124 by ukbd(4) (which also does AT keyboard emulation), f.e.:
2126 Option "XkbLayout" "us"
2127 Option "XkbRules" "xorg"
2128 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
2131 It has been decided that it is desirable to provide ABI
2132 backwards compatibility to the FreeBSD 4/5/6 versions of the
2133 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
2134 broken with the introduction of PCI domain support (see the
2135 20070930 entry). Unfortunately, this required the ABI of
2136 PCIOCGETCONF to be broken again in order to be able to
2137 provide backwards compatibility to the old version of that
2138 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
2139 again. As for prominent ports this affects neither pciutils
2140 nor xorg-server this time, the hal port needs to be rebuilt
2144 The misnamed kthread_create() and friends have been renamed
2145 to kproc_create() etc. Many of the callers already
2146 used kproc_start()..
2147 I will return kthread_create() and friends in a while
2148 with implementations that actually create threads, not procs.
2149 Renaming corresponds with version 800002.
2158 Avoid using make -j when upgrading. While generally safe, there are
2159 sometimes problems using -j to upgrade. If your upgrade fails with
2160 -j, please try again without -j. From time to time in the past there
2161 have been problems using -j with buildworld and/or installworld. This
2162 is especially true when upgrading between "distant" versions (eg one
2163 that cross a major release boundary or several minor releases, or when
2164 several months have passed on the -current branch).
2166 Sometimes, obscure build problems are the result of environment
2167 poisoning. This can happen because the make utility reads its
2168 environment when searching for values for global variables. To run
2169 your build attempts in an "environmental clean room", prefix all make
2170 commands with 'env -i '. See the env(1) manual page for more details.
2172 When upgrading from one major version to another it is generally best
2173 to upgrade to the latest code in the currently installed branch first,
2174 then do an upgrade to the new branch. This is the best-tested upgrade
2175 path, and has the highest probability of being successful. Please try
2176 this approach before reporting problems with a major version upgrade.
2178 When upgrading a live system, having a root shell around before
2179 installing anything can help undo problems. Not having a root shell
2180 around can lead to problems if pam has changed too much from your
2181 starting point to allow continued authentication after the upgrade.
2185 When upgrading the boot ZFS pool to a new version, always follow
2188 1.) recompile and reinstall the ZFS boot loader and boot block
2189 (this is part of "make buildworld" and "make installworld")
2191 2.) update the ZFS boot block on your boot drive
2193 The following example updates the ZFS boot block on the first
2194 partition (freebsd-boot) of a GPT partitioned drive ad0:
2195 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0"
2197 Non-boot pools do not need these updates.
2201 If you are updating from a prior version of FreeBSD (even one just
2202 a few days old), you should follow this procedure. It is the most
2203 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
2205 make kernel-toolchain
2206 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
2207 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
2209 To test a kernel once
2210 ---------------------
2211 If you just want to boot a kernel once (because you are not sure
2212 if it works, or if you want to boot a known bad kernel to provide
2213 debugging information) run
2214 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
2215 nextboot -k testkernel
2217 To just build a kernel when you know that it won't mess you up
2218 --------------------------------------------------------------
2219 This assumes you are already running a CURRENT system. Replace
2220 ${arch} with the architecture of your machine (e.g. "i386",
2221 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc).
2223 cd src/sys/${arch}/conf
2224 config KERNEL_NAME_HERE
2225 cd ../compile/KERNEL_NAME_HERE
2230 If this fails, go to the "To build a kernel" section.
2232 To rebuild everything and install it on the current system.
2233 -----------------------------------------------------------
2234 # Note: sometimes if you are running current you gotta do more than
2235 # is listed here if you are upgrading from a really old current.
2237 <make sure you have good level 0 dumps>
2239 make kernel KERNCONF=YOUR_KERNEL_HERE
2241 <reboot in single user> [3]
2248 To cross-install current onto a separate partition
2249 --------------------------------------------------
2250 # In this approach we use a separate partition to hold
2251 # current's root, 'usr', and 'var' directories. A partition
2252 # holding "/", "/usr" and "/var" should be about 2GB in
2255 <make sure you have good level 0 dumps>
2258 make buildkernel KERNCONF=YOUR_KERNEL_HERE
2259 <maybe newfs current's root partition>
2260 <mount current's root partition on directory ${CURRENT_ROOT}>
2261 make installworld DESTDIR=${CURRENT_ROOT}
2262 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
2263 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
2264 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
2265 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
2266 <reboot into current>
2267 <do a "native" rebuild/install as described in the previous section>
2268 <maybe install compatibility libraries from ports/misc/compat*>
2272 To upgrade in-place from stable to current
2273 ----------------------------------------------
2274 <make sure you have good level 0 dumps>
2276 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
2278 <reboot in single user> [3]
2285 Make sure that you've read the UPDATING file to understand the
2286 tweaks to various things you need. At this point in the life
2287 cycle of current, things change often and you are on your own
2288 to cope. The defaults can also change, so please read ALL of
2289 the UPDATING entries.
2291 Also, if you are tracking -current, you must be subscribed to
2292 freebsd-current@freebsd.org. Make sure that before you update
2293 your sources that you have read and understood all the recent
2294 messages there. If in doubt, please track -stable which has
2295 much fewer pitfalls.
2297 [1] If you have third party modules, such as vmware, you
2298 should disable them at this point so they don't crash your
2301 [3] From the bootblocks, boot -s, and then do
2306 adjkerntz -i # if CMOS is wall time
2307 Also, when doing a major release upgrade, it is required that
2308 you boot into single user mode to do the installworld.
2310 [4] Note: This step is non-optional. Failure to do this step
2311 can result in a significant reduction in the functionality of the
2312 system. Attempting to do it by hand is not recommended and those
2313 that pursue this avenue should read this file carefully, as well
2314 as the archives of freebsd-current and freebsd-hackers mailing lists
2315 for potential gotchas. The -U option is also useful to consider.
2316 See mergemaster(8) for more information.
2318 [5] Usually this step is a noop. However, from time to time
2319 you may need to do this if you get unknown user in the following
2320 step. It never hurts to do it all the time. You may need to
2321 install a new mergemaster (cd src/usr.sbin/mergemaster && make
2322 install) after the buildworld before this step if you last updated
2323 from current before 20130425 or from -stable before 20130430.
2325 [6] This only deletes old files and directories. Old libraries
2326 can be deleted by "make delete-old-libs", but you have to make
2327 sure that no program is using those libraries anymore.
2329 [8] In order to have a kernel that can run the 4.x binaries needed to
2330 do an installworld, you must include the COMPAT_FREEBSD4 option in
2331 your kernel. Failure to do so may leave you with a system that is
2332 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is
2333 required to run the 5.x binaries on more recent kernels. And so on
2334 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7.
2336 Make sure that you merge any new devices from GENERIC since the
2337 last time you updated your kernel config file.
2339 [9] When checking out sources, you must include the -P flag to have
2340 cvs prune empty directories.
2342 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
2343 "?=" instead of the "=" assignment operator, so that buildworld can
2344 override the CPUTYPE if it needs to.
2346 MAKEOBJDIRPREFIX must be defined in an environment variable, and
2347 not on the command line, or in /etc/make.conf. buildworld will
2348 warn if it is improperly defined.
2351 This file contains a list, in reverse chronological order, of major
2352 breakages in tracking -current. It is not guaranteed to be a complete
2353 list of such breakages, and only contains entries since October 10, 2007.
2354 If you need to see UPDATING entries from before that date, you will need
2355 to fetch an UPDATING file from an older FreeBSD release.
2357 Copyright information:
2359 Copyright 1998-2009 M. Warner Losh. All Rights Reserved.
2361 Redistribution, publication, translation and use, with or without
2362 modification, in full or in part, in any form or format of this
2363 document are permitted without further permission from the author.
2365 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
2366 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
2367 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
2368 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
2369 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
2370 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
2371 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2372 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
2373 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
2374 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
2375 POSSIBILITY OF SUCH DAMAGE.
2377 Contact Warner Losh if you have any questions about your use of
projects / FreeBSD / releng / 10.2.git / blob