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 20160604 p19 FreeBSD-SA-16:24.ntp
21 Fix multiple vulnerabilities of ntp.
23 20160531 p18 FreeBSD-SA-16:20.linux
24 FreeBSD-SA-16:21.43bsd
25 FreeBSD-SA-16:22.libarchive
27 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20]
28 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21]
29 Fix directory traversal in cpio(1). [SA-16:22]
31 20160517 p17 FreeBSD-SA-16:18.atkbd
32 FreeBSD-SA-16:19.sendmsg
34 Fix buffer overflow in keyboard driver. [SA-16:18]
36 Fix incorrect argument handling in sendmsg(2). [SA-16:19]
38 20160504 p16 FreeBSD-SA-16:17.openssl
42 Fix multiple OpenSSL vulnerabilitites. [SA-16:17]
44 Fix excessive latency in x86 IPI delivery. [EN-16:07]
46 Fix memory leak in ZFS. [EN-16:08]
48 20160429 p15 FreeBSD-SA-16:16.ntp
50 Fix multiple vulnerabilities of ntp.
52 20160316 p14 FreeBSD-SA-16:14.openssh-xauth
53 FreeBSD-SA-16:15.sysarch
54 FreeBSD-EN-16:04.hyperv
55 FreeBSD-EN-16:05.hv_netvsc
57 Fix OpenSSH xauth(1) command injection. [SA-16:14]
58 Fix incorrect argument validation in sysarch(2). [SA-16:15]
59 Fix Hyper-V KVP (Key-Value Pair) daemon indefinite sleep. [EN-16:04]
60 Fix hv_netvsc(4) incorrect TCP/IP checksums. [EN-16:05]
62 20160303 p13 FreeBSD-SA-16:12.openssl
64 Fix multiple vulnerabilities of OpenSSL.
66 20160130 p12 FreeBSD-SA-16:11.openssl
68 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11]
70 20160127 p11 FreeBSD-SA-16:09.ntp
71 FreeBSD-SA-16:10.linux
73 Fix multiple vulnerabilities of ntp. [SA-16:09]
75 Fix Linux compatibility layer issetugid(2) system call
76 vulnerability. [SA-16:10]
78 20160114 p10 FreeBSD-SA-16:07.openssh
80 Fix OpenSSH client information leak. [SA-16:07]
82 20160114 p9 FreeBSD-EN-16:01.filemon
84 FreeBSD-EN-16:03.yplib
87 FreeBSD-SA-16:03.linux
88 FreeBSD-SA-16:04.linux
90 FreeBSD-SA-16:06.bsnmpd
92 Fix multiple stability and locking problems in filemon(4). [EN-16:01]
93 Fix pf(4) generating bad TCP checksums. [EN-16:02]
94 Fix infinite loop in YP/NIS client library. [EN-16:03]
95 Fix remote denial of service in SCTP. [SA-16:01]
96 Update NTP to 4.2.8p5. [SA-16:02]
97 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03]
98 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04]
99 Fix crash in TCP MD5 signatures. [SA-16:05]
100 Fix insecure default permissions for snmpd.config. [SA-16:06]
102 20151205 p8 FreeBSD-SA-15:26.openssl
104 Fix multiple OpenSSL vulnerabilities. [SA-15:26]
106 20151104 p7 FreeBSD-SA-15:25.ntp [revised]
107 FreeBSD-EN-15:19.kqueue
110 Fix regression in ntpd(8) lacking support for RAWDCF reference
111 clock in 10.2-RELEASE-p6. [SA-15:25]
113 Fix kqueue write events never fired for files greater 2GB. [EN-15:19]
115 Fix applications exiting due to segmentation violation on a correct
116 memory address. [EN-15:20.vm]
118 20151026: p6 FreeBSD-SA-15:25.ntp
120 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4.
122 20151002: p5 FreeBSD-SA-15:24.rpcbind [revised]
123 Revised patch to address a regression that prevents NIS from working.
125 20150929: p4 FreeBSD-SA-15:24.rpcbind
127 Fix rpcbind(8) remote denial of service. [SA-15:24]
129 20150916: p3 FreeBSD-EN-15:16.pw
130 FreeBSD-EN-15:17.libc
133 Fix regression in pw(8) when creating numeric users or groups.
136 Fix libc handling of signals for multi-threaded processes.
139 Implement pubkey support for pkg(7) bootstrap. [EN-15:18]
141 20150825: p2 FreeBSD-SA-15:22.openssh
143 Fix OpenSSH multiple vulnerabilities. [SA-15:22]
145 Fix insufficient check of unsupported pkg(7) signature methods.
148 20150818: p1 FreeBSD-SA-15:20.expat
149 FreeBSD-EN-15:11.toolchain
150 FreeBSD-EN-15:12.netstat
151 FreeBSD-EN-15:13.vidcontrol
153 Fix multiple integer overflows in expat (libbsdxml) XML parser.
156 Fix make(1) syntax errors when upgrading from 9.x and earlier.
159 Fix incorrect netstat(1) data handling on 32-bit systems.
162 Allow size argument to vidcontrol(1) for syscons(4). [EN-15:13]
168 The default Unbound configuration now enables remote control
169 using a local socket. Users who have already enabled the
170 local_unbound service should regenerate their configuration
171 by running "service local_unbound setup" as root.
174 An additional fix for the issue described in the 20150614 sendmail
175 entry below has been been committed in revision 284786.
178 The fix for the issue described in the 20150614 sendmail entry
179 below has been been committed in revision 284485. The work
180 around described in that entry is no longer needed unless the
181 default setting is overridden by a confDH_PARAMETERS configuration
182 setting of '5' or pointing to a 512 bit DH parameter file.
185 The import of openssl to address the FreeBSD-SA-15:10.openssl
186 security advisory includes a change which rejects handshakes
187 with DH parameters below 768 bits. sendmail releases prior
188 to 8.15.2 (not yet released), defaulted to a 512 bit
189 DH parameter setting for client connections. To work around
190 this interoperability, sendmail can be configured to use a
191 2048 bit DH parameter by:
193 1. Edit /etc/mail/`hostname`.mc
194 2. If a setting for confDH_PARAMETERS does not exist or
195 exists and is set to a string beginning with '5',
197 3. If a setting for confDH_PARAMETERS exists and is set to
198 a file path, create a new file with:
199 openssl dhparam -out /path/to/file 2048
200 4. Rebuild the .cf file:
201 cd /etc/mail/; make; make install
203 cd /etc/mail/; make restart
205 A sendmail patch is coming, at which time this file will be
209 chmod, chflags, chown and chgrp now affect symlinks in -R mode as
210 defined in symlink(7); previously symlinks were silently ignored.
213 The const qualifier has been removed from iconv(3) to comply with
214 POSIX. The ports tree is aware of this from r384038 onwards.
217 At svn r275807, The default linux compat kernel ABI has been adjusted
218 to 2.6.18 in support of the linux-c6 compat ports infrastructure
219 update. If you wish to continue using the linux-f10 compat ports,
220 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are
221 encouraged to update their linux-compat packages to linux-c6 during
222 their next update cycle.
224 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports.
227 pjdfstest has been integrated into kyua as an opt-in test suite.
228 Please see share/doc/pjdfstest/README for a more details on how to
235 The ofwfb driver, used to provide a graphics console on PowerPC when
236 using vt(4), no longer allows mmap() of all of physical memory. This
237 will prevent Xorg on PowerPC with some ATI graphics cards from
238 initializing properly unless x11-servers/xorg-server is updated to
242 The libatf-c and libatf-c++ major versions were downgraded to 0 and
243 1 respectively to match the upstream numbers. They were out of
244 sync because, when they were originally added to FreeBSD, the
245 upstream versions were not respected. These libraries are private
246 and not yet built by default, so renumbering them should be a
247 non-issue. However, unclean source trees will yield broken test
248 programs once the operator executes "make delete-old-libs" after a
251 Additionally, the atf-sh binary was made private by moving it into
252 /usr/libexec/. Already-built shell test programs will keep the
253 path to the old binary so they will break after "make delete-old"
256 If you are using WITH_TESTS=yes (not the default), wipe the object
257 tree and rebuild from scratch to prevent spurious test failures.
258 This is only needed once: the misnumbered libraries and misplaced
259 binaries have been added to OptionalObsoleteFiles.inc so they will
260 be removed during a clean upgrade.
263 The ixgbe tunables now match their sysctl counterparts, for example:
264 hw.ixgbe.enable_aim => hw.ix.enable_aim
265 Anyone using ixgbe tunables should ensure they update /boot/loader.conf.
268 The NFSv4.1 server committed by r269398 changes the internal
269 function call interfaces used between the NFS and krpc modules.
270 As such, __FreeBSD_version was bumped.
273 The default unbound configuration has been modified to address
274 issues with reverse lookups on networks that use private
275 address ranges. If you use the local_unbound service, run
276 "service local_unbound setup" as root to regenerate your
277 configuration, then "service local_unbound reload" to load the
281 It is no longer necessary to include the dwarf version in your DEBUG
282 options in your kernel config file. The bug that required it to be
283 placed in the config file has bene fixed. DEBUG should now just
284 contain -g. The build system will automatically update things
285 to do the right thing.
288 Several ABI breaking changes were merged to CTL and new iSCSI code.
289 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and
290 iscsictl need to be rebuilt to work with a new kernel.
293 The WITHOUT_VT_SUPPORT kernel config knob has been renamed
294 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning
295 which differs from the behaviour controlled by this knob.)
298 On i386 and amd64 systems, the onifconsole flag is now set by default
299 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled
300 as a login TTY if it is set in the bootloader as an active kernel
301 console. No changes in behavior should result otherwise. To revert to
302 the previous behavior, set ttyu0 to "off" in /etc/ttys.
305 Clang and llvm have been upgraded to 3.4.1 release.
308 Clang and llvm have been upgraded to 3.4 release.
311 If a Makefile in a tests/ directory was auto-generating a Kyuafile
312 instead of providing an explicit one, this would prevent such
313 Makefile from providing its own Kyuafile in the future during
314 NO_CLEAN builds. This has been fixed in the Makefiles but manual
315 intervention is needed to clean an objdir if you use NO_CLEAN:
316 # find /usr/obj -name Kyuafile | xargs rm -f
319 OpenSSH will now ignore errors caused by kernel lacking of Capsicum
320 capability mode support. Please note that enabling the feature in
321 kernel is still highly recommended.
324 OpenSSH is now built with sandbox support, and will use sandbox as
325 the default privilege separation method. This requires Capsicum
326 capability mode support in kernel.
329 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has
330 been deprecated and will not be part of FreeBSD 11.0 and later
331 releases. If you use this driver, please consider switching to
332 the nfe(4) driver instead.
338 The behavior of gss_pseudo_random() for the krb5 mechanism
339 has changed, for applications requesting a longer random string
340 than produced by the underlying enctype's pseudo-random() function.
341 In particular, the random string produced from a session key of
342 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will
343 be different at the 17th octet and later, after this change.
344 The counter used in the PRF+ construction is now encoded as a
345 big-endian integer in accordance with RFC 4402.
346 __FreeBSD_version is bumped to 1000701.
349 The WITHOUT_ATF build knob has been removed and its functionality
350 has been subsumed into the more generic WITHOUT_TESTS. If you were
351 using the former to disable the build of the ATF libraries, you
352 should change your settings to use the latter.
355 The default version of mtree is nmtree which is obtained from
356 NetBSD. The output is generally the same, but may vary
357 slightly. If you found you need identical output adding
358 "-F freebsd9" to the command line should do the trick. For the
359 time being, the old mtree is available as fmtree.
362 libbsdyml has been renamed to libyaml and moved to /usr/lib/private.
363 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg
364 1.1.4_8 and verify bsdyml not linked in, before running "make
366 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean
368 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml
371 The rc.d/jail script has been updated to support jail(8)
372 configuration file. The "jail_<jname>_*" rc.conf(5) variables
373 for per-jail configuration are automatically converted to
374 /var/run/jail.<jname>.conf before the jail(8) utility is invoked.
375 This is transparently backward compatible. See below about some
376 incompatibilities and rc.conf(5) manual page for more details.
378 These variables are now deprecated in favor of jail(8) configuration
379 file. One can use "rc.d/jail config <jname>" command to generate
380 a jail(8) configuration file in /var/run/jail.<jname>.conf without
381 running the jail(8) utility. The default pathname of the
382 configuration file is /etc/jail.conf and can be specified by
383 using $jail_conf or $jail_<jname>_conf variables.
385 Please note that jail_devfs_ruleset accepts an integer at
386 this moment. Please consider to rewrite the ruleset name
390 BIND has been removed from the base system. If all you need
391 is a local resolver, simply enable and start the local_unbound
392 service instead. Otherwise, several versions of BIND are
393 available in the ports tree. The dns/bind99 port is one example.
395 With this change, nslookup(1) and dig(1) are no longer in the base
396 system. Users should instead use host(1) and drill(1) which are
397 in the base system. Alternatively, nslookup and dig can
398 be obtained by installing the dns/bind-tools port.
401 With the addition of unbound(8), a new unbound user is now
402 required during installworld. "mergemaster -p" can be used to
403 add the user prior to installworld, as documented in the handbook.
406 OpenSSH is now built with DNSSEC support, and will by default
407 silently trust signed SSHFP records. This can be controlled with
408 the VerifyHostKeyDNS client configuration setting. DNSSEC support
409 can be disabled entirely with the WITHOUT_LDNS option in src.conf.
412 The GNU Compiler Collection and C++ standard library (libstdc++)
413 are no longer built by default on platforms where clang is the system
414 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX
418 The PROCDESC kernel option is now part of the GENERIC kernel
419 configuration and is required for the rwhod(8) to work.
420 If you are using custom kernel configuration, you should include
424 The API and ABI related to the Capsicum framework was modified
425 in backward incompatible way. The userland libraries and programs
426 have to be recompiled to work with the new kernel. This includes the
427 following libraries and programs, but the whole buildworld is
428 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl,
429 kdump, procstat, rwho, rwhod, uniq.
432 AES-NI intrinsic support has been added to gcc. The AES-NI module
433 has been updated to use this support. A new gcc is required to build
434 the aesni module on both i386 and amd64.
437 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices.
438 Thus "device padlock_rng" and "device rdrand_rng" should be
439 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG".
442 WITH_ICONV has been split into two feature sets. WITH_ICONV now
443 enables just the iconv* functionality and is now on by default.
444 WITH_LIBICONV_COMPAT enables the libiconv api and link time
445 compatability. Set WITHOUT_ICONV to build the old way.
446 If you have been using WITH_ICONV before, you will very likely
447 need to turn on WITH_LIBICONV_COMPAT.
450 INVARIANTS option now enables DEBUG for code with OpenSolaris and
451 Illumos origin, including ZFS. If you have INVARIANTS in your
452 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG
454 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS)
455 locks if WITNESS option was set. Because that generated a lot of
456 witness(9) reports and all of them were believed to be false
457 positives, this is no longer done. New option OPENSOLARIS_WITNESS
458 can be used to achieve the previous behavior.
461 Timer values in IPv6 data structures now use time_uptime instead
462 of time_second. Although this is not a user-visible functional
463 change, userland utilities which directly use them---ndp(8),
464 rtadvd(8), and rtsold(8) in the base system---need to be updated
468 find -delete can now delete the pathnames given as arguments,
469 instead of only files found below them or if the pathname did
470 not contain any slashes. Formerly, the following error message
473 find: -delete: <path>: relative path potentially not safe
475 Deleting the pathnames given as arguments can be prevented
476 without error messages using -mindepth 1 or by changing
477 directory and passing "." as argument to find. This works in the
478 old as well as the new version of find.
481 Behavior of devfs rules path matching has been changed.
482 Pattern is now always matched against fully qualified devfs
483 path and slash characters must be explicitly matched by
484 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs
485 subdirectories must be reviewed.
488 The default ARM ABI has changed to the ARM EABI. The old ABI is
489 incompatible with the ARM EABI and all programs and modules will
490 need to be rebuilt to work with a new kernel.
492 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set.
494 NOTE: Support for the old ABI will be removed in the future and
495 users are advised to upgrade.
498 pkg_install has been disconnected from the build if you really need it
499 you should add WITH_PKGTOOLS in your src.conf(5).
502 Most of network statistics structures were changed to be able
503 keep 64-bits counters. Thus all tools, that work with networking
504 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.)
507 Fix targets that run multiple make's to use && rather than ;
508 so that subsequent steps depend on success of previous.
510 NOTE: if building 'universe' with -j* on stable/8 or stable/9
511 it would be better to start the build using bmake, to avoid
512 overloading the machine.
515 Fix a bug that allowed a tracing process (e.g. gdb) to write
516 to a memory-mapped file in the traced process's address space
517 even if neither the traced process nor the tracing process had
518 write access to that file.
521 CVS has been removed from the base system. An exact copy
522 of the code is available from the devel/cvs port.
525 Some people report the following error after the switch to bmake:
527 make: illegal option -- J
528 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable]
530 *** [buildworld] Error code 2
532 this likely due to an old instance of make in
533 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE})
534 which src/Makefile will use that blindly, if it exists, so if
535 you see the above error:
537 rm -rf `make -V MAKEPATH`
542 Use bmake by default.
543 Whereas before one could choose to build with bmake via
544 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old
545 make. The goal is to remove these knobs for 10-RELEASE.
547 It is worth noting that bmake (like gmake) treats the command
548 line as the unit of failure, rather than statements within the
549 command line. Thus '(cd some/where && dosomething)' is safer
550 than 'cd some/where; dosomething'. The '()' allows consistent
551 behavior in parallel build.
554 Fix a bug that allows NFS clients to issue READDIR on files.
557 The WITHOUT_IDEA option has been removed because
558 the IDEA patent expired.
561 The sysctl which controls TRIM support under ZFS has been renamed
562 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been
566 The mergemaster command now uses the default MAKEOBJDIRPREFIX
567 rather than creating it's own in the temporary directory in
568 order allow access to bootstrapped versions of tools such as
569 install and mtree. When upgrading from version of FreeBSD where
570 the install command does not support -l, you will need to
571 install a new mergemaster command if mergemaster -p is required.
572 This can be accomplished with the command (cd src/usr.sbin/mergemaster
576 Legacy ATA stack, disabled and replaced by new CAM-based one since
577 FreeBSD 9.0, completely removed from the sources. Kernel modules
578 atadisk and atapi*, user-level tools atacontrol and burncd are
579 removed. Kernel option `options ATA_CAM` is now permanently enabled
583 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2)
584 and socketpair(2). Software, in particular Kerberos, may
585 automatically detect and use these during building. The resulting
586 binaries will not work on older kernels.
589 CTL_DISABLE has also been added to the sparc64 GENERIC (for further
590 information, see the respective 20130304 entry).
593 Recent commits to callout(9) changed the size of struct callout,
594 so the KBI is probably heavily disturbed. Also, some functions
595 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced
596 by macros. Every kernel module using it won't load, so rebuild
599 The ctl device has been re-enabled in GENERIC for i386 and amd64,
600 but does not initialize by default (because of the new CTL_DISABLE
601 option) to save memory. To re-enable it, remove the CTL_DISABLE
602 option from the kernel config file or set kern.cam.ctl.disable=0
603 in /boot/loader.conf.
606 The ctl device has been disabled in GENERIC for i386 and amd64.
607 This was done due to the extra memory being allocated at system
608 initialisation time by the ctl driver which was only used if
609 a CAM target device was created. This makes a FreeBSD system
610 unusable on 128MB or less of RAM.
613 A new compression method (lz4) has been merged to -HEAD. Please
614 refer to zpool-features(7) for more information.
616 Please refer to the "ZFS notes" section of this file for information
617 on upgrading boot ZFS pools.
620 A BSD-licensed patch(1) variant has been added and is installed
621 as bsdpatch, being the GNU version the default patch.
622 To inverse the logic and use the BSD-licensed one as default,
623 while having the GNU version installed as gnupatch, rebuild
624 and install world with the WITH_BSD_PATCH knob set.
627 Due to the use of the new -l option to install(1) during build
628 and install, you must take care not to directly set the INSTALL
629 make variable in your /etc/make.conf, /etc/src.conf, or on the
630 command line. If you wish to use the -C flag for all installs
631 you may be able to add INSTALL+=-C to /etc/make.conf or
635 The install(1) option -M has changed meaning and now takes an
636 argument that is a file or path to append logs to. In the
637 unlikely event that -M was the last option on the command line
638 and the command line contained at least two files and a target
639 directory the first file will have logs appended to it. The -M
640 option served little practical purpose in the last decade so its
641 use is expected to be extremely rare.
644 After switching to Clang as the default compiler some users of ZFS
645 on i386 systems started to experience stack overflow kernel panics.
646 Please consider using 'options KSTACK_PAGES=4' in such configurations.
649 GEOM_LABEL now mangles label names read from file system metadata.
650 Mangling affect labels containing spaces, non-printable characters,
651 '%' or '"'. Device names in /etc/fstab and other places may need to
655 By default, only the 10 most recent kernel dumps will be saved. To
656 restore the previous behaviour (no limit on the number of kernel dumps
657 stored in the dump directory) add the following line to /etc/rc.conf:
662 With the addition of auditdistd(8), a new auditdistd user is now
663 required during installworld. "mergemaster -p" can be used to
664 add the user prior to installworld, as documented in the handbook.
667 The sin6_scope_id member variable in struct sockaddr_in6 is now
668 filled by the kernel before passing the structure to the userland via
669 sysctl or routing socket. This means the KAME-specific embedded scope
670 id in sin6_addr.s6_addr[2] is always cleared in userland application.
671 This behavior can be controlled by net.inet6.ip6.deembed_scopeid.
672 __FreeBSD_version is bumped to 1000025.
675 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default.
676 This means that the world and kernel will be compiled with clang
677 and that clang will be installed as /usr/bin/cc, /usr/bin/c++,
678 and /usr/bin/cpp. To disable this behavior and revert to building
679 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions
680 of current may need to bootstrap WITHOUT_CLANG first if the clang
681 build fails (its compatibility window doesn't extend to the 9 stable
685 The IPFIREWALL_FORWARD kernel option has been removed. Its
686 functionality now turned on by default.
689 The ZERO_COPY_SOCKET kernel option has been removed and
690 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP.
691 NB: SOCKET_SEND_COW uses the VM page based copy-on-write
692 mechanism which is not safe and may result in kernel crashes.
693 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current
694 driver supports disposeable external page sized mbuf storage.
695 Proper replacements for both zero-copy mechanisms are under
696 consideration and will eventually lead to complete removal
697 of the two kernel options.
700 The IPv4 network stack has been converted to network byte
701 order. The following modules need to be recompiled together
702 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4),
703 pf(4), ipfw(4), ng_ipfw(4), stf(4).
706 Support for non-MPSAFE filesystems was removed from VFS. The
707 VFS_VERSION was bumped, all filesystem modules shall be
711 All the non-MPSAFE filesystems have been disconnected from
712 the build. The full list includes: codafs, hpfs, ntfs, nwfs,
713 portalfs, smbfs, xfs.
716 The interface cloning API and ABI has changed. The following
717 modules need to be recompiled together with kernel:
718 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4),
719 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4),
720 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4).
723 The sdhci driver was split in two parts: sdhci (generic SD Host
724 Controller logic) and sdhci_pci (actual hardware driver).
725 No kernel config modifications are required, but if you
726 load sdhc as a module you must switch to sdhci_pci instead.
729 Import the FUSE kernel and userland support into base system.
732 The GNU sort(1) program has been removed since the BSD-licensed
733 sort(1) has been the default for quite some time and no serious
734 problems have been reported. The corresponding WITH_GNU_SORT
738 The pfil(9) API/ABI for AF_INET family has been changed. Packet
739 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled
743 The net80211(4) ABI has been changed to allow for improved driver
744 PS-POLL and power-save support. All wireless drivers need to be
745 recompiled to work with the new kernel.
748 The random(4) support for the VIA hardware random number
749 generator (`PADLOCK') is no longer enabled unconditionally.
750 Add the padlock_rng device in the custom kernel config if
751 needed. The GENERIC kernels on i386 and amd64 do include the
752 device, so the change only affects the custom kernel
756 The pf(4) packet filter ABI has been changed. pfctl(8) and
757 snmp_pf module need to be recompiled to work with new kernel.
760 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged
761 to -HEAD. Pools that have empty_bpobj in active state can not be
762 imported read-write with ZFS implementations that do not support
763 this feature. For more information read the zpool-features(5)
767 The sparc64 ZFS loader has been changed to no longer try to auto-
768 detect ZFS providers based on diskN aliases but now requires these
769 to be explicitly listed in the OFW boot-device environment variable.
772 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring
773 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are
774 configuration changes. Make sure to merge /etc/ssl/openssl.cnf.
777 The following sysctls and tunables have been renamed for consistency
778 with other variables:
779 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered
780 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered
783 The sort utility has been replaced with BSD sort. For now, GNU sort
784 is also available as "gnusort" or the default can be set back to
785 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be
786 installed as "bsdsort".
789 A new version of ZFS (pool version 5000) has been merged to -HEAD.
790 Starting with this version the old system of ZFS pool versioning
791 is superseded by "feature flags". This concept enables forward
792 compatibility against certain future changes in functionality of ZFS
793 pools. The first read-only compatible "feature flag" for ZFS pools
794 is named "com.delphix:async_destroy". For more information
795 read the new zpool-features(5) manual page.
796 Please refer to the "ZFS notes" section of this file for information
797 on upgrading boot ZFS pools.
800 The malloc(3) implementation embedded in libc now uses sources imported
801 as contrib/jemalloc. The most disruptive API change is to
802 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf,
803 delete it prior to installworld, and optionally re-create it using the
804 new format after rebooting. See malloc.conf(5) for details
805 (specifically the TUNING section and the "opt.*" entries in the MALLCTL
809 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb
810 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is
811 now spelled mips. This is to aid compatibility with third-party
812 software that expects this naming scheme in uname(3). Little-endian
813 settings are unchanged. If you are updating a big-endian mips64 machine
814 from before this change, you may need to set MACHINE_ARCH=mips64 in
815 your environment before the new build system will recognize your machine.
818 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported
822 Now unix domain sockets behave "as expected" on nullfs(5). Previously
823 nullfs(5) did not pass through all behaviours to the underlying layer,
824 as a result if we bound to a socket on the lower layer we could connect
825 only to the lower path; if we bound to the upper layer we could connect
826 only to the upper path. The new behavior is one can connect to both the
827 lower and the upper paths regardless what layer path one binds to.
830 The getifaddrs upgrade path broken with 20111215 has been restored.
831 If you have upgraded in between 20111215 and 20120209 you need to
832 recompile libc again with your kernel. You still need to recompile
833 world to be able to configure CARP but this restriction already
837 The set_rcvar() function has been removed from /etc/rc.subr. All
838 base and ports rc.d scripts have been updated, so if you have a
839 port installed with a script in /usr/local/etc/rc.d you can either
840 hand-edit the rcvar= line, or reinstall the port.
842 An easy way to handle the mass-update of /etc/rc.d:
843 rm /etc/rc.d/* && mergemaster -i
846 panic(9) now stops other CPUs in the SMP systems, disables interrupts
847 on the current CPU and prevents other threads from running.
848 This behavior can be reverted using the kern.stop_scheduler_on_panic
850 The new behavior can be incompatible with kern.sync_on_panic.
853 The carp(4) facility has been changed significantly. Configuration
854 of the CARP protocol via ifconfig(8) has changed, as well as format
855 of CARP events submitted to devd(8) has changed. See manual pages
856 for more information. The arpbalance feature of carp(4) is currently
857 not supported anymore.
859 Size of struct in_aliasreq, struct in6_aliasreq has changed. User
860 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8),
861 need to be recompiled.
864 The acpi_wmi(4) status device /dev/wmistat has been renamed to
868 The option VFS_ALLOW_NONMPSAFE option has been added in order to
869 explicitely support non-MPSAFE filesystems.
870 It is on by default for all supported platform at this present
874 The broken amd(4) driver has been replaced with esp(4) in the amd64,
875 i386 and pc98 GENERIC kernel configuration files.
878 sysinstall has been removed
881 The stable/9 branch created in subversion. This corresponds to the
882 RELENG_9 branch in CVS.
885 This commit modifies vfs_register() so that it uses a hash
886 calculation to set vfc_typenum, which is enabled by default.
887 The first time a system is booted after this change, the
888 vfc_typenum values will change for all file systems. The
889 main effect of this is a change to the NFS server file handles
890 for file systems that use vfc_typenum in their fsid, such as ZFS.
891 It will, however, prevent vfc_typenum from changing when file
892 systems are loaded in a different order for subsequent reboots.
893 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf
894 until you are ready to remount all NFS clients after a reboot.
897 Bump the shared library version numbers for libraries that
898 do not use symbol versioning, have changed the ABI compared
899 to stable/8 and which shared library version was not bumped.
900 Done as part of 9.0-RELEASE cycle.
903 During the merge of Capsicum features, the fget(9) KPI was modified.
904 This may require the rebuilding of out-of-tree device drivers --
905 issues have been reported specifically with the nVidia device driver.
906 __FreeBSD_version is bumped to 900041.
908 Also, there is a period between 20110811 and 20110814 where the
909 special devices /dev/{stdin,stdout,stderr} did not work correctly.
910 Building world from a kernel during that window may not work.
913 The packet filter (pf) code has been updated to OpenBSD 4.5.
914 You need to update userland tools to be in sync with kernel.
915 This update breaks backward compatibility with earlier pfsync(4)
916 versions. Care must be taken when updating redundant firewall setups.
919 The following sysctls and tunables are retired on x86 platforms:
921 machdep.hlt_logical_cpus
922 The following sysctl is retired:
923 machdep.hyperthreading_allowed
924 The sysctls were supposed to provide a way to dynamically offline and
925 online selected CPUs on x86 platforms, but the implementation has not
926 been reliable especially with SCHED_ULE scheduler.
927 machdep.hyperthreading_allowed tunable is still available to ignore
928 hyperthreading CPUs at OS level.
929 Individual CPUs can be disabled using hint.lapic.X.disabled tunable,
930 where X is an APIC ID of a CPU. Be advised, though, that disabling
931 CPUs in non-uniform fashion will result in non-uniform topology and
932 may lead to sub-optimal system performance with SCHED_ULE, which is
936 cpumask_t type is retired and cpuset_t is used in order to describe
940 Changes to ifconfig(8) for dynamic address family detection mandate
941 that you are running a kernel of 20110525 or later. Make sure to
942 follow the update procedure to boot a new kernel before installing
946 Support for sun4v architecture is officially dropped
949 Several KPI breaking changes have been committed to the mii(4) layer,
950 the PHY drivers and consequently some Ethernet drivers using mii(4).
951 This means that miibus.ko and the modules of the affected Ethernet
952 drivers need to be recompiled.
954 Note to kernel developers: Given that the OUI bit reversion problem
955 was fixed as part of these changes all mii(4) commits related to OUIs,
956 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific
957 handling, no longer can be merged verbatim to stable/8 and previous
961 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci'
962 into their kernel configurations along with 'device pci'.
965 The default NFS client is now the new NFS client, so fstype "newnfs"
966 is now "nfs" and the regular/old NFS client is now fstype "oldnfs".
967 Although mounts via fstype "nfs" will usually work without userland
968 changes, it is recommended that the mount(8) and mount_nfs(8)
969 commands be rebuilt from sources and that a link to mount_nfs called
970 mount_oldnfs be created. The new client is compiled into the
971 kernel with "options NFSCL" and this is needed for diskless root
972 file systems. The GENERIC kernel configs have been changed to use
973 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER.
974 To use the regular/old client, you can "mount -t oldnfs ...". For
975 a diskless root file system, you must also include a line like:
977 vfs.root.mountfrom="oldnfs:"
979 in the boot/loader.conf on the root fs on the NFS server to make
980 a diskless root fs use the old client.
983 The GENERIC kernels for all architectures now default to the new
984 CAM-based ATA stack. It means that all legacy ATA drivers were
985 removed and replaced by respective CAM drivers. If you are using
986 ATA device names in /etc/fstab or other places, make sure to update
987 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY,
988 where 'Y's are the sequential numbers starting from zero for each type
989 in order of detection, unless configured otherwise with tunables,
990 see cam(4)). There will be symbolic links created in /dev/ to map
991 old adX devices to the respective adaY. They should provide basic
992 compatibility for file systems mounting in most cases, but they do
993 not support old user-level APIs and do not have respective providers
994 in GEOM. Consider using updated management tools with new device names.
996 It is possible to load devices ahci, ata, siis and mvs as modules,
997 but option ATA_CAM should remain in kernel configuration to make ata
998 module work as CAM driver supporting legacy ATA controllers. Device ata
999 still can be used in modular fashion (atacore + ...). Modules atadisk
1000 and atapi* are not used and won't affect operation in ATA_CAM mode.
1001 Note that to use CAM-based ATA kernel should include CAM devices
1002 scbus, pass, da (or explicitly ada), cd and optionally others. All of
1003 them are parts of the cam module.
1005 ataraid(4) functionality is now supported by the RAID GEOM class.
1006 To use it you can load geom_raid kernel module and use graid(8) tool
1007 for management. Instead of /dev/arX device names, use /dev/raid/rX.
1009 No kernel config options or code have been removed, so if a problem
1010 arises, please report it and optionally revert to the old ATA stack.
1011 In order to do it you can remove from the kernel config:
1016 , and instead add back:
1017 device atadisk # ATA disk drives
1018 device ataraid # ATA RAID drives
1019 device atapicd # ATAPI CDROM drives
1020 device atapifd # ATAPI floppy drives
1021 device atapist # ATAPI tape drives
1024 The default NFS server has been changed to the new server, which
1025 was referred to as the experimental server. If you need to switch
1026 back to the old NFS server, you must now put the "-o" option on
1027 both the mountd and nfsd commands. This can be done using the
1028 mountd_flags and nfs_server_flags rc.conf variables until an
1029 update to the rc scripts is committed, which is coming soon.
1032 The GNU Objective-C runtime library (libobjc), and other Objective-C
1033 related components have been removed from the base system. If you
1034 require an Objective-C library, please use one of the available ports.
1037 ath(4) has been split into bus- and device- modules. if_ath contains
1038 the HAL, the TX rate control and the network device code. if_ath_pci
1039 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb
1040 contains the AHB glue. Users need to load both if_ath_pci and if_ath
1041 in order to use ath on everything else.
1043 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only
1044 need to load if_ath and if_ath_pci for ath(4) operation.
1047 As part of the replacement of sysinstall, the process of building
1048 release media has changed significantly. For details, please re-read
1049 release(7), which has been updated to reflect the new build process.
1052 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This
1053 is the last available version under GPLv2. It brings a number of new
1054 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE
1055 4.1 and SSE 4.2), better support for powerpc64, a number of new
1056 directives, and lots of other small improvements. See the ChangeLog
1057 file in contrib/binutils for the full details.
1060 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868
1061 compliant, and will now use half of hash for authentication.
1062 This will break interoperability with all stacks (including all
1063 actual FreeBSD versions) who implement
1064 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for
1066 The only workaround with such peers is to use another HMAC
1067 algorithm for IPsec ("phase 2") authentication.
1070 Remove the uio_yield prototype and symbol. This function has
1071 been misnamed since it was introduced and should not be
1072 globally exposed with this name. The equivalent functionality
1073 is now available using kern_yield(curthread->td_user_pri).
1074 The function remains undocumented.
1077 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers,
1078 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking
1079 for scalar sysctls is defined but disabled. Code that needs
1080 UQUAD to pass the type checking that must compile on older
1081 systems where the define is not present can check against
1082 __FreeBSD_version >= 900030.
1084 The system dialog(1) has been replaced with a new version previously
1085 in ports as devel/cdialog. dialog(1) is mostly command-line compatible
1086 with the previous version, but the libdialog associated with it has
1087 a largely incompatible API. As such, the original version of libdialog
1088 will be kept temporarily as libodialog, until its base system consumers
1089 are replaced or updated. Bump __FreeBSD_version to 900030.
1092 If you are trying to run make universe on a -stable system, and you get
1093 the following warning:
1094 "Makefile", line 356: "Target architecture for i386/conf/GENERIC
1095 unknown. config(8) likely too old."
1096 or something similar to it, then you must upgrade your -stable system
1097 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in
1098 stable/8) or build the config from the latest stable/8 branch and
1099 install it on your system.
1101 Prior to this date, building a current universe on 8-stable system from
1102 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing
1103 error in the first kernel build phase. A new config on those old
1104 systems will fix that problem for older versions of -current.
1107 The TCP stack has been modified to allow Khelp modules to interact with
1108 it via helper hook points and store per-connection data in the TCP
1109 control block. Bump __FreeBSD_version to 900029. User space tools that
1110 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to
1114 Generic IEEE 802.3 annex 31B full duplex flow control support has been
1115 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along
1116 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted
1117 to take advantage of it instead of using custom implementations. This
1118 means that these drivers now no longer unconditionally advertise
1119 support for flow control but only do so if flow control is a selected
1120 media option. This was implemented in the generic support that way in
1121 order to allow flow control to be switched on and off via ifconfig(8)
1122 with the PHY specific default to typically off in order to protect
1123 from unwanted effects. Consequently, if you used flow control with
1124 one of the above mentioned drivers you now need to explicitly enable
1125 it, for example via:
1126 ifconfig bge0 media auto mediaopt flowcontrol
1128 Along with the above mentioned changes generic support for setting
1129 1000baseT master mode also has been added and brgphy(4), ciphy(4),
1130 e1000phy(4) as well as ip1000phy(4) have been converted to take
1131 advantage of it. This means that these drivers now no longer take the
1132 link0 parameter for selecting master mode but the master media option
1133 has to be used instead, for example like in the following:
1134 ifconfig bge0 media 1000baseT mediaopt full-duplex,master
1136 Selection of master mode now is also available with all other PHY
1137 drivers supporting 1000baseT.
1140 The TCP stack has received a significant update to add support for
1141 modularised congestion control and generally improve the clarity of
1142 congestion control decisions. Bump __FreeBSD_version to 900025. User
1143 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g.
1144 sockstat) need to be recompiled.
1147 The man(1) utility has been replaced by a new version that no longer
1148 uses /etc/manpath.config. Please consult man.conf(5) for how to
1149 migrate local entries to the new format.
1152 The copyright strings printed by login(1) and sshd(8) at the time of a
1153 new connection have been removed to follow other operating systems and
1157 A workaround for a fixed ld bug has been removed in kernel code,
1158 so make sure that your system ld is built from sources after
1159 revision 210245 from 2010-07-19 (r211583 if building head kernel
1160 on stable/8, r211584 for stable/7; both from 2010-08-21).
1161 A symptom of incorrect ld version is different addresses for
1162 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules.
1165 The $ipv6_prefer variable in rc.conf(5) has been split into
1166 $ip6addrctl_policy and $ipv6_activate_all_interfaces.
1168 The $ip6addrctl_policy is a variable to choose a pre-defined
1169 address selection policy set by ip6addrctl(8). A value
1170 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The
1173 The $ipv6_activate_all_interfaces specifies whether IFDISABLED
1174 flag (see an entry of 20090926) is set on an interface with no
1175 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for
1176 security reason. If you want IPv6 link-local address on all
1177 interfaces by default, set this to "YES".
1179 The old ipv6_prefer="YES" is equivalent to
1180 ipv6_activate_all_interfaces="YES" and
1181 ip6addrctl_policy="ipv6_prefer".
1184 DTrace has grown support for userland tracing. Due to this, DTrace is
1185 now i386 and amd64 only.
1186 dtruss(1) is now installed by default on those systems and a new
1187 kernel module is needed for userland tracing: fasttrap.
1188 No changes to your kernel config file are necessary to enable
1189 userland tracing, but you might consider adding 'STRIP=' and
1190 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want
1191 to have informative userland stack traces in DTrace (ustack).
1194 The acpi_aiboost(4) driver has been removed in favor of the new
1195 aibs(4) driver. You should update your kernel configuration file.
1198 BSD grep has been imported to the base system and it is built by
1199 default. It is completely BSD licensed, highly GNU-compatible, uses
1200 less memory than its GNU counterpart and has a small codebase.
1201 However, it is slower than its GNU counterpart, which is mostly
1202 noticeable for larger searches, for smaller ones it is measurable
1203 but not significant. The reason is complex, the most important factor
1204 is that we lack a modern and efficient regex library and GNU
1205 overcomes this by optimizing the searches internally. Future work
1206 on improving the regex performance is planned, for the meantime,
1207 users that need better performance, can build GNU grep instead by
1208 setting the WITH_GNU_GREP knob.
1211 Due to the import of powerpc64 support, all existing powerpc kernel
1212 configuration files must be updated with a machine directive like this:
1213 machine powerpc powerpc
1215 In addition, an updated config(8) is required to build powerpc kernels
1219 A new version of ZFS (version 15) has been merged to -HEAD.
1220 This version uses a python library for the following subcommands:
1221 zfs allow, zfs unallow, zfs groupspace, zfs userspace.
1222 For full functionality of these commands the following port must
1223 be installed: sysutils/py-zfs
1226 'vm_page's are now hashed by physical address to an array of mutexes.
1227 Currently this is only used to serialize access to hold_count. Over
1228 time the page queue mutex will be peeled away. This changes the size
1229 of pmap on every architecture. And requires all callers of vm_page_hold
1230 and vm_page_unhold to be updated.
1233 WITH_CTF can now be specified in src.conf (not recommended, there
1234 are some problems with static executables), make.conf (would also
1235 affect ports which do not use GNU make and do not override the
1236 compile targets) or in the kernel config (via "makeoptions
1238 When WITH_CTF was specified there before this was silently ignored,
1239 so make sure that WITH_CTF is not used in places which could lead
1240 to unwanted behavior.
1243 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32
1244 to allow 32-bit compatibility on non-x86 platforms. All kernel
1245 configurations on amd64 and ia64 platforms using these options must
1246 be modified accordingly.
1249 The utmp user accounting database has been replaced with utmpx,
1250 the user accounting interface standardized by POSIX.
1251 Unfortunately the semantics of utmp and utmpx don't match,
1252 making it practically impossible to support both interfaces.
1253 The user accounting database is used by tools like finger(1),
1254 last(1), talk(1), w(1) and ac(8).
1256 All applications in the base system use utmpx. This means only
1257 local binaries (e.g. from the ports tree) may still use these
1258 utmp database files. These applications must be rebuilt to make
1261 After the system has been upgraded, it is safe to remove the old
1262 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*),
1263 assuming their contents is of no importance anymore. Old wtmp
1264 databases can only be used by last(1) and ac(8) after they have
1265 been converted to the new format using wtmpcvt(1).
1268 Introduce the kernel thread "deadlock resolver" (which can be enabled
1269 via the DEADLKRES option, see NOTES for more details) and the
1270 sleepq_type() function for sleepqueues.
1273 The rc.firewall and rc.firewall6 were unified, and
1274 rc.firewall6 and rc.d/ip6fw were removed.
1275 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc
1276 variables are obsoleted. Instead, the following new rc
1277 variables are added to rc.d/ipfw:
1279 firewall_client_net_ipv6, firewall_simple_iif_ipv6,
1280 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6,
1281 firewall_simple_onet_ipv6, firewall_trusted_ipv6
1283 The meanings correspond to the relevant IPv4 variables.
1289 The default terminal emulation for syscons(4) has been changed
1290 from cons25 to xterm on all platforms except pc98. This means
1291 that the /etc/ttys file needs to be updated to ensure correct
1292 operation of applications on the console.
1294 The terminal emulation style can be toggled per window by using
1295 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration
1296 options can be used to change the compile-time default back to
1299 To prevent graphical artifacts, make sure the TERM environment
1300 variable is set to match the terminal emulation that is being
1301 performed by syscons(4).
1304 The layout of the structure ieee80211req_scan_result has changed.
1305 Applications that require wireless scan results (e.g. ifconfig(8))
1306 from net80211 need to be recompiled.
1308 Applications such as wpa_supplicant(8) may require a full world
1309 build without using NO_CLEAN in order to get synchronized with the
1313 The iwn(4) driver has been updated to support the 5000 and 5150 series.
1314 There's one kernel module for each firmware. Adding "device iwnfw"
1315 to the kernel configuration file means including all three firmware
1316 images inside the kernel. If you want to include just the one for
1317 your wireless card, use the devices iwn4965fw, iwn5000fw or
1321 The rc.d/network_ipv6, IPv6 configuration script has been integrated
1322 into rc.d/netif. The changes are the following:
1324 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF
1325 for IPv4. For aliases, $ifconfig_IF_aliasN should be used.
1326 Note that both variables need the "inet6" keyword at the head.
1328 Do not set $ipv6_network_interfaces manually if you do not
1329 understand what you are doing. It is not needed in most cases.
1331 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but
1334 2. $ipv6_enable is obsolete. Use $ipv6_prefer and
1335 "inet6 accept_rtadv" keyword in ifconfig(8) instead.
1337 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and
1338 all configured interfaces have "inet6 accept_rtadv" in the
1339 $ifconfig_IF_ipv6. These are for backward compatibility.
1341 3. A new variable $ipv6_prefer has been added. If NO, IPv6
1342 functionality of interfaces with no corresponding
1343 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag,
1344 and the default address selection policy of ip6addrctl(8)
1345 is the IPv4-preferred one (see rc.d/ip6addrctl for more details).
1346 Note that if you want to configure IPv6 functionality on the
1347 disabled interfaces after boot, first you need to clear the flag by
1348 using ifconfig(8) like:
1350 ifconfig em0 inet6 -ifdisabled
1352 If YES, the default address selection policy is set as
1355 The default value of $ipv6_prefer is NO.
1357 4. If your system need to receive Router Advertisement messages,
1358 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8)
1359 scripts automatically invoke rtsol(8) when the interface becomes
1360 UP. The Router Advertisement messages are used for SLAAC
1361 (State-Less Address AutoConfiguration).
1364 802.11s D3.03 support was committed. This is incompatible with the
1365 previous code, which was based on D3.0.
1368 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value
1369 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to
1370 control whether accepting Router Advertisement messages or not.
1371 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and
1372 a sysctl variable net.inet6.ip6.auto_linklocal is its default value.
1373 The ifconfig(8) utility now supports these flags.
1376 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
1377 mount(8) and -a option for df(1) to see them.
1380 The old tunable hw.bus.devctl_disable has been superseded by
1381 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be
1382 replaced by hw.bus.devctl_queue=0. The default for this new tunable
1386 Remove the option STOP_NMI. The default action is now to use NMI only
1387 for KDB via the newly introduced function stop_cpus_hard() and
1388 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64.
1391 The stable/8 branch created in subversion. This corresponds to the
1392 RELENG_8 branch in CVS.
1395 Bump the shared library version numbers for all libraries that do not
1396 use symbol versioning as part of the 8.0-RELEASE cycle. Bump
1397 __FreeBSD_version to 800105.
1400 Due to changes in the implementation of virtual network stack support,
1401 all network-related kernel modules must be recompiled. As this change
1402 breaks the ABI, bump __FreeBSD_version to 800104.
1405 The TOE interface to the TCP syncache has been modified to remove
1406 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack.
1407 The cxgb driver is the only TOE consumer affected by this change, and
1408 needs to be recompiled along with the kernel. As this change breaks
1409 the ABI, bump __FreeBSD_version to 800103.
1412 Padding has been added to struct tcpcb, sackhint and tcpstat in
1413 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
1414 maintaining the ABI. However, this change breaks the ABI, so bump
1415 __FreeBSD_version to 800102. User space tools that rely on the size of
1416 any of these structs (e.g. sockstat) need to be recompiled.
1419 The NFS_LEGACYRPC option has been removed along with the old kernel
1420 RPC implementation that this option selected. Kernel configurations
1421 may need to be adjusted.
1424 The network interface device nodes at /dev/net/<interface> have been
1425 removed. All ioctl operations can be performed the normal way using
1426 routing sockets. The kqueue functionality can generally be replaced
1427 with routing sockets.
1430 The documentation from the FreeBSD Documentation Project (Handbook,
1431 FAQ, etc.) is now installed via packages by sysinstall(8) and under
1432 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc.
1435 The ABI of various structures related to the SYSV IPC API have been
1436 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel
1437 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to
1441 Layout of struct vnet has changed as routing related variables were
1442 moved to their own Vimage module. Modules need to be recompiled. Bump
1443 __FreeBSD_version to 800099.
1446 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024
1447 respectively. As long as no more than 16 groups per process are used,
1448 no changes should be visible. When more than 16 groups are used, old
1449 binaries may fail if they call getgroups() or getgrouplist() with
1450 statically sized storage. Recompiling will work around this, but
1451 applications should be modified to use dynamically allocated storage
1452 for group arrays as POSIX.1-2008 does not cap an implementation's
1453 number of supported groups at NGROUPS_MAX+1 as previous versions did.
1455 NFS and portalfs mounts may also be affected as the list of groups is
1456 truncated to 16. Users of NFS who use more than 16 groups, should
1457 take care that negative group permissions are not used on the exported
1458 file systems as they will not be reliable unless a GSSAPI based
1459 authentication method is used.
1462 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This
1463 option compiles in the support for adaptive spinning for lockmgrs
1464 which want to enable it. The lockinit() function now accepts the flag
1465 LK_ADAPTIVE in order to make the lock object subject to adaptive
1466 spinning when both held in write and read mode.
1469 The layout of the structure returned by IEEE80211_IOC_STA_INFO has
1470 changed. User applications that use this ioctl need to be rebuilt.
1473 The layout of struct thread has changed. Kernel and modules need to
1477 The layout of structs ifnet, domain, protosw and vnet_net has changed.
1478 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097.
1481 window(1) has been removed from the base system. It can now be
1482 installed from ports. The port is called misc/window.
1485 The way we are storing and accessing `routing table' entries has
1486 changed. Programs reading the FIB, like netstat, need to be
1490 A new netisr implementation has been added for FreeBSD 8. Network
1491 file system modules, such as igmp, ipdivert, and others, should be
1493 Bump __FreeBSD_version to 800096.
1496 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no
1500 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
1501 Bump __FreeBSD_version to 800094.
1504 Add mnt_xflag field to 'struct mount'. File system modules need to be
1506 Bump __FreeBSD_version to 800093.
1509 The compiling option ADAPTIVE_SX has been retired while it has been
1510 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
1511 The KPI for sx_init_flags() changes as accepting flags:
1512 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has
1513 been introduced in order to handle the reversed logic.
1514 Bump __FreeBSD_version to 800092.
1517 Add support for hierarchical jails. Remove global securelevel.
1518 Bump __FreeBSD_version to 800091.
1521 The layout of struct vnet_net has changed, therefore modules
1523 Bump __FreeBSD_version to 800090.
1526 The newly imported zic(8) produces a new format in the output. Please
1527 run tzsetup(8) to install the newly created data to /etc/localtime.
1530 The sysctl tree for the usb stack has renamed from hw.usb2.* to
1531 hw.usb.* and is now consistent again with previous releases.
1534 802.11 monitor mode support was revised and driver api's were changed.
1535 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead
1536 of DLT_IEEE802_11. No user-visible data structures were changed but
1537 applications that use DLT_IEEE802_11 may require changes.
1538 Bump __FreeBSD_version to 800088.
1541 The layout of the following structs has changed: sysctl_oid,
1542 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
1543 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
1544 panics may be experienced. World rebuild is required for
1545 correctly checking networking state from userland.
1546 Bump __FreeBSD_version to 800085.
1549 MLDv2 and Source-Specific Multicast (SSM) have been merged
1550 to the IPv6 stack. VIMAGE hooks are in but not yet used.
1551 The implementation of SSM within FreeBSD's IPv6 stack closely
1552 follows the IPv4 implementation.
1554 For kernel developers:
1556 * The most important changes are that the ip6_output() and
1557 ip6_input() paths no longer take the IN6_MULTI_LOCK,
1558 and this lock has been downgraded to a non-recursive mutex.
1560 * As with the changes to the IPv4 stack to support SSM, filtering
1561 of inbound multicast traffic must now be performed by transport
1562 protocols within the IPv6 stack. This does not apply to TCP and
1563 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
1565 * The KPIs used by IPv6 multicast are similar to those used by
1566 the IPv4 stack, with the following differences:
1567 * im6o_mc_filter() is analogous to imo_multicast_filter().
1568 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
1569 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
1570 * IN6_LOOKUP_MULTI() has been deprecated and removed.
1571 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
1572 for MLDv1 have an additional 'timer' argument which is used to
1573 jitter the initial membership report for the solicited-node
1574 multicast membership on-link.
1575 * This is not strictly needed for MLDv2, which already jitters
1576 its report transmissions. However, the 'timer' argument is
1577 preserved in case MLDv1 is active on the interface.
1579 * The KAME linked-list based IPv6 membership implementation has
1580 been refactored to use a vector similar to that used by the IPv4
1582 Code which maintains a list of its own multicast memberships
1583 internally, e.g. carp, has been updated to reflect the new
1586 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
1587 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
1588 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
1589 implementation constraint which needs to be addressed in HEAD.
1591 For application developers:
1593 * The changes are broadly similar to those made for the IPv4
1596 * The use of IPv4 and IPv6 multicast socket options on the same
1597 socket, using mapped addresses, HAS NOT been tested or supported.
1599 * There are a number of issues with the implementation of various
1600 IPv6 multicast APIs which need to be resolved in the API surface
1601 before the implementation is fully compatible with KAME userland
1602 use, and these are mostly to do with interface index treatment.
1604 * The literature available discusses the use of either the delta / ASM
1605 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
1606 using setsourcefilter(3)/getsourcefilter(3). For more information
1607 please refer to RFC 3768, 'Socket Interface Extensions for
1608 Multicast Source Filters'.
1610 * Applications which use the published RFC 3678 APIs should be fine.
1612 For systems administrators:
1614 * The mtest(8) utility has been refactored to support IPv6, in
1615 addition to IPv4. Interface addresses are no longer accepted
1616 as arguments, their names must be used instead. The utility
1617 will map the interface name to its first IPv4 address as
1618 returned by getifaddrs(3).
1620 * The ifmcstat(8) utility has also been updated to print the MLDv2
1621 endpoint state and source filter lists via sysctl(3).
1623 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
1624 loopback of IPv6 multicast datagrams by default; it defaults to 1
1625 to preserve the existing behaviour. Disabling multicast loopback is
1626 recommended for optimal system performance.
1628 * The IPv6 MROUTING code has been changed to examine this sysctl
1629 instead of attempting to perform a group lookup before looping
1630 back forwarded datagrams.
1632 Bump __FreeBSD_version to 800084.
1635 Implement low-level Bluetooth HCI API.
1636 Bump __FreeBSD_version to 800083.
1639 The layout of struct malloc_type, used by modules to register new
1640 memory allocation types, has changed. Most modules will need to
1641 be rebuilt or panics may be experienced.
1642 Bump __FreeBSD_version to 800081.
1645 Anticipate overflowing inp_flags - add inp_flags2.
1646 This changes most offsets in inpcb, so checking v4 connection
1647 state will require a world rebuild.
1648 Bump __FreeBSD_version to 800080.
1651 Add an llentry to struct route and struct route_in6. Modules
1652 embedding a struct route will need to be recompiled.
1653 Bump __FreeBSD_version to 800079.
1656 The size of rt_metrics_lite and by extension rtentry has changed.
1657 Networking administration apps will need to be recompiled.
1658 The route command now supports show as an alias for get, weighting
1659 of routes, sticky and nostick flags to alter the behavior of stateful
1661 Bump __FreeBSD_version to 800078.
1664 Do not use Giant for kbdmux(4) locking. This is wrong and
1665 apparently causing more problems than it solves. This will
1666 re-open the issue where interrupt handlers may race with
1667 kbdmux(4) in polling mode. Typical symptoms include (but
1668 not limited to) duplicated and/or missing characters when
1669 low level console functions (such as gets) are used while
1670 interrupts are enabled (for example geli password prompt,
1671 mountroot prompt etc.). Disabling kbdmux(4) may help.
1674 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
1675 kernel modules referencing any of the above need to be recompiled.
1676 Bump __FreeBSD_version to 800075.
1679 GEOM_PART has become the default partition slicer for storage devices,
1680 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
1681 introduces some changes:
1683 MSDOS/EBR: the devices created from MSDOS extended partition entries
1684 (EBR) can be named differently than with GEOM_MBR and are now symlinks
1685 to devices with offset-based names. fstabs may need to be modified.
1687 BSD: the "geometry does not match label" warning is harmless in most
1688 cases but it points to problems in file system misalignment with
1689 disk geometry. The "c" partition is now implicit, covers the whole
1690 top-level drive and cannot be (mis)used by users.
1692 General: Kernel dumps are now not allowed to be written to devices
1693 whose partition types indicate they are meant to be used for file
1694 systems (or, in case of MSDOS partitions, as something else than
1697 Most of these changes date approximately from 200812.
1700 The uscanner(4) driver has been removed from the kernel. This follows
1701 Linux removing theirs in 2.6 and making libusb the default interface
1702 (supported by sane).
1705 The multicast forwarding code has been cleaned up. netstat(1)
1706 only relies on KVM now for printing bandwidth upcall meters.
1707 The IPv4 and IPv6 modules are split into ip_mroute_mod and
1708 ip6_mroute_mod respectively. The config(5) options for statically
1709 compiling this code remain the same, i.e. 'options MROUTING'.
1712 Support for the IFF_NEEDSGIANT network interface flag has been
1713 removed, which means that non-MPSAFE network device drivers are no
1714 longer supported. In particular, if_ar, if_sr, and network device
1715 drivers from the old (legacy) USB stack can no longer be built or
1719 POSIX.1 Native Language Support (NLS) has been enabled in libc and
1720 a bunch of new language catalog files have also been added.
1721 This means that some common libc messages are now localized and
1722 they depend on the LC_MESSAGES environmental variable.
1725 The k8temp(4) driver has been renamed to amdtemp(4) since
1726 support for Family 10 and Family 11 CPU families was added.
1729 IGMPv3 and Source-Specific Multicast (SSM) have been merged
1730 to the IPv4 stack. VIMAGE hooks are in but not yet used.
1732 For kernel developers, the most important changes are that the
1733 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
1734 and this lock has been downgraded to a non-recursive mutex.
1736 Transport protocols (UDP, Raw IP) are now responsible for filtering
1737 inbound multicast traffic according to group membership and source
1738 filters. The imo_multicast_filter() KPI exists for this purpose.
1739 Transports which do not use multicast (SCTP, TCP) already reject
1740 multicast by default. Forwarding and receive performance may improve
1741 as a mutex acquisition is no longer needed in the ip_input()
1742 low-level input path. in_addmulti() and in_delmulti() are shimmed
1743 to new KPIs which exist to support SSM in-kernel.
1745 For application developers, it is recommended that loopback of
1746 multicast datagrams be disabled for best performance, as this
1747 will still cause the lock to be taken for each looped-back
1748 datagram transmission. The net.inet.ip.mcast.loop sysctl may
1749 be tuned to 0 to disable loopback by default; it defaults to 1
1750 to preserve the existing behaviour.
1752 For systems administrators, to obtain best performance with
1753 multicast reception and multiple groups, it is always recommended
1754 that a card with a suitably precise hash filter is used. Hash
1755 collisions will still result in the lock being taken within the
1756 transport protocol input path to check group membership.
1758 If deploying FreeBSD in an environment with IGMP snooping switches,
1759 it is recommended that the net.inet.igmp.sendlocal sysctl remain
1760 enabled; this forces 224.0.0.0/24 group membership to be announced
1763 The size of 'struct igmpstat' has changed; netstat needs to be
1764 recompiled to reflect this.
1765 Bump __FreeBSD_version to 800070.
1768 libusb20.so.1 is now installed as libusb.so.1 and the ports system
1769 updated to use it. This requires a buildworld/installworld in order to
1770 update the library and dependencies (usbconfig, etc). Its advisable to
1771 rebuild all ports which uses libusb. More specific directions are given
1772 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
1773 libusb are no longer required and can be removed.
1776 A workaround is committed to allow the creation of System V shared
1777 memory segment of size > 2 GB on the 64-bit architectures.
1778 Due to a limitation of the existing ABI, the shm_segsz member
1779 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
1780 wrong for large segments. Note that limits must be explicitly
1781 raised to allow such segments to be created.
1784 The layout of struct ifnet has changed, requiring a rebuild of all
1785 network device driver modules.
1788 The /dev handling for the new USB stack has changed, a
1789 buildworld/installworld is required for libusb20.
1792 The new USB2 stack has now been permanently moved in and all kernel and
1793 module names reverted to their previous values (eg, usb, ehci, ohci,
1794 ums, ...). The old usb stack can be compiled in by prefixing the name
1795 with the letter 'o', the old usb modules have been removed.
1796 Updating entry 20090216 for xorg and 20090215 for libmap may still
1800 The rc.conf(5) option if_up_delay has been renamed to
1801 defaultroute_delay to better reflect its purpose. If you have
1802 customized this setting in /etc/rc.conf you need to update it to
1806 xorg 7.4 wants to configure its input devices via hald which does not
1807 yet work with USB2. If the keyboard/mouse does not work in xorg then
1809 Option "AllowEmptyInput" "off"
1810 to your ServerLayout section. This will cause X to use the configured
1811 kbd and mouse sections from your xorg.conf.
1814 The GENERIC kernels for all architectures now default to the new USB2
1815 stack. No kernel config options or code have been removed so if a
1816 problem arises please report it and optionally revert to the old USB
1817 stack. If you are loading USB kernel modules or have a custom kernel
1818 that includes GENERIC then ensure that usb names are also changed over,
1819 eg uftdi -> usb2_serial_ftdi.
1821 Older programs linked against the ports libusb 0.1 need to be
1822 redirected to the new stack's libusb20. /etc/libmap.conf can
1824 # Map old usb library to new one for usb2 stack
1825 libusb-0.1.so.8 libusb20.so.1
1828 All USB ethernet devices now attach as interfaces under the name ueN
1829 (eg. ue0). This is to provide a predictable name as vendors often
1830 change usb chipsets in a product without notice.
1833 The ichsmb(4) driver has been changed to require SMBus slave
1834 addresses be left-justified (xxxxxxx0b) rather than right-justified.
1835 All of the other SMBus controller drivers require left-justified
1836 slave addresses, so this change makes all the drivers provide the
1840 INET6 statistics (struct ip6stat) was updated.
1841 netstat(1) needs to be recompiled.
1844 NTFS has been removed from GENERIC kernel on amd64 to match
1845 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
1846 will load ntfs.ko module automatically when NTFS support is
1847 actually needed, unless ntfs.ko is not installed or security
1848 level prohibits loading kernel modules. If either is the case,
1849 "options NTFS" has to be added into kernel config.
1852 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
1853 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
1854 800061. User space tools that rely on the size of struct tcpcb in
1855 tcp_var.h (e.g. sockstat) need to be recompiled.
1858 ng_tty(4) module updated to match the new TTY subsystem.
1859 Due to API change, user-level applications must be updated.
1860 New API support added to mpd5 CVS and expected to be present
1861 in next mpd5.3 release.
1864 With __FreeBSD_version 800060 the makefs tool is part of
1865 the base system (it was a port).
1868 The afdata and ifnet locks have been changed from mutexes to
1869 rwlocks, network modules will need to be re-compiled.
1872 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
1873 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
1874 The new code reduced struct rtentry{} by 16 bytes on 32-bit
1875 architecture and 40 bytes on 64-bit architecture. The userland
1876 applications "arp" and "ndp" have been updated accordingly.
1877 The output from "netstat -r" shows only routing entries and
1878 none of the L2 information.
1881 __FreeBSD_version 800057 marks the switchover from the
1882 binary ath hal to source code. Users must add the line:
1884 options AH_SUPPORT_AR5416
1886 to their kernel config files when specifying:
1890 The ath_hal module no longer exists; the code is now compiled
1891 together with the driver in the ath module. It is now
1892 possible to tailor chip support (i.e. reduce the set of chips
1893 and thereby the code size); consult ath_hal(4) for details.
1896 __FreeBSD_version 800054 adds memory barriers to
1897 <machine/atomic.h>, new interfaces to ifnet to facilitate
1898 multiple hardware transmit queues for cards that support
1899 them, and a lock-less ring-buffer implementation to
1900 enable drivers to more efficiently manage queueing of
1904 A new version of ZFS (version 13) has been merged to -HEAD.
1905 This version has zpool attribute "listsnapshots" off by
1906 default, which means "zfs list" does not show snapshots,
1907 and is the same as Solaris behavior.
1910 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
1913 The uhci, ohci, ehci and slhci USB Host controller drivers have
1914 been put into separate modules. If you load the usb module
1915 separately through loader.conf you will need to load the
1916 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
1917 controller add the following to loader.conf:
1923 The ABI used by the PMC toolset has changed. Please keep
1924 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
1928 atapci kernel module now includes only generic PCI ATA
1929 driver. AHCI driver moved to ataahci kernel module.
1930 All vendor-specific code moved into separate kernel modules:
1931 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
1932 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
1933 atamarvell, atamicron, atanational, atanetcell, atanvidia,
1934 atapromise, ataserverworks, atasiliconimage, atasis, atavia
1937 The TTY subsystem of the kernel has been replaced by a new
1938 implementation, which provides better scalability and an
1939 improved driver model. Most common drivers have been migrated to
1940 the new TTY subsystem, while others have not. The following
1941 drivers have not yet been ported to the new TTY layer:
1944 cy, digi, rc, rp, sio
1950 ng_h4, ng_tty, ppp, sl, snp
1952 Adding these drivers to your kernel configuration file shall
1953 cause compilation to fail.
1956 ntpd has been upgraded to 4.2.4p5.
1959 OpenSSH has been upgraded to 5.1p1.
1961 For many years, FreeBSD's version of OpenSSH preferred DSA
1962 over RSA for host and user authentication keys. With this
1963 upgrade, we've switched to the vendor's default of RSA over
1964 DSA. This may cause upgraded clients to warn about unknown
1965 host keys even for previously known hosts. Users should
1966 follow the usual procedure for verifying host keys before
1967 accepting the RSA key.
1969 This can be circumvented by setting the "HostKeyAlgorithms"
1970 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
1973 Please note that the sequence of keys offered for
1974 authentication has been changed as well. You may want to
1975 specify IdentityFile in a different order to revert this
1979 The sio(4) driver has been removed from the i386 and amd64
1980 kernel configuration files. This means uart(4) is now the
1981 default serial port driver on those platforms as well.
1983 To prevent collisions with the sio(4) driver, the uart(4) driver
1984 uses different names for its device nodes. This means the
1985 onboard serial port will now most likely be called "ttyu0"
1986 instead of "ttyd0". You may need to reconfigure applications to
1987 use the new device names.
1989 When using the serial port as a boot console, be sure to update
1990 /boot/device.hints and /etc/ttys before booting the new kernel.
1991 If you forget to do so, you can still manually specify the hints
1992 at the loader prompt:
1994 set hint.uart.0.at="isa"
1995 set hint.uart.0.port="0x3F8"
1996 set hint.uart.0.flags="0x10"
1997 set hint.uart.0.irq="4"
2001 The gpt(8) utility has been removed. Use gpart(8) to partition
2005 The version that Linuxulator emulates was changed from 2.4.2
2006 to 2.6.16. If you experience any problems with Linux binaries
2007 please try to set sysctl compat.linux.osrelease to 2.4.2 and
2008 if it fixes the problem contact emulation mailing list.
2011 ISDN4BSD (I4B) was removed from the src tree. You may need to
2012 update a your kernel configuration and remove relevant entries.
2015 I have checked in code to support multiple routing tables.
2016 See the man pages setfib(1) and setfib(2).
2017 This is a hopefully backwards compatible version,
2018 but to make use of it you need to compile your kernel
2019 with options ROUTETABLES=2 (or more up to 16).
2022 The 802.11 wireless support was redone to enable multi-bss
2023 operation on devices that are capable. The underlying device
2024 is no longer used directly but instead wlanX devices are
2025 cloned with ifconfig. This requires changes to rc.conf files.
2026 For example, change:
2027 ifconfig_ath0="WPA DHCP"
2030 ifconfig_wlan0="WPA DHCP"
2031 see rc.conf(5) for more details. In addition, mergemaster of
2032 /etc/rc.d is highly recommended. Simultaneous update of userland
2033 and kernel wouldn't hurt either.
2035 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
2036 modules were merged into the base wlan module. All references
2037 to these modules (e.g. in kernel config files) must be removed.
2040 psm(4) has gained write(2) support in native operation level.
2041 Arbitrary commands can be written to /dev/psm%d and status can
2042 be read back from it. Therefore, an application is responsible
2043 for status validation and error recovery. It is a no-op in
2044 other operation levels.
2047 Support for KSE threading has been removed from the kernel. To
2048 run legacy applications linked against KSE libmap.conf may
2049 be used. The following libmap.conf may be used to ensure
2050 compatibility with any prior release:
2052 libpthread.so.1 libthr.so.1
2053 libpthread.so.2 libthr.so.2
2054 libkse.so.3 libthr.so.3
2057 The layout of struct vmspace has changed. This affects libkvm
2058 and any executables that link against libkvm and use the
2059 kvm_getprocs() function. In particular, but not exclusively,
2060 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
2061 The effects are minimal, but it's advisable to upgrade world
2065 The latest em driver no longer has support in it for the
2066 82575 adapter, this is now moved to the igb driver. The
2067 split was done to make new features that are incompatible
2068 with older hardware easier to do.
2071 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
2072 likewise the kernel option is now GEOM_LINUX_LVM.
2075 The default NFS mount mode has changed from UDP to TCP for
2076 increased reliability. If you rely on (insecurely) NFS
2077 mounting across a firewall you may need to update your
2081 Belatedly note the addition of m_collapse for compacting
2085 The fts(3) structures have been changed to use adequate
2086 integer types for their members and so to be able to cope
2087 with huge file trees. The old fts(3) ABI is preserved
2088 through symbol versioning in libc, so third-party binaries
2089 using fts(3) should still work, although they will not take
2090 advantage of the extended types. At the same time, some
2091 third-party software might fail to build after this change
2092 due to unportable assumptions made in its source code about
2093 fts(3) structure members. Such software should be fixed
2094 by its vendor or, in the worst case, in the ports tree.
2095 FreeBSD_version 800015 marks this change for the unlikely
2096 case that a portable fix is impossible.
2099 To upgrade to -current after this date, you must be running
2100 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
2101 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
2104 The ADAPTIVE_GIANT kernel option has been retired because its
2105 functionality is the default now.
2108 The AT keyboard emulation of sunkbd(4) has been turned on
2109 by default. In order to make the special symbols of the Sun
2110 keyboards driven by sunkbd(4) work under X these now have
2111 to be configured the same way as Sun USB keyboards driven
2112 by ukbd(4) (which also does AT keyboard emulation), f.e.:
2114 Option "XkbLayout" "us"
2115 Option "XkbRules" "xorg"
2116 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
2119 It has been decided that it is desirable to provide ABI
2120 backwards compatibility to the FreeBSD 4/5/6 versions of the
2121 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
2122 broken with the introduction of PCI domain support (see the
2123 20070930 entry). Unfortunately, this required the ABI of
2124 PCIOCGETCONF to be broken again in order to be able to
2125 provide backwards compatibility to the old version of that
2126 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
2127 again. As for prominent ports this affects neither pciutils
2128 nor xorg-server this time, the hal port needs to be rebuilt
2132 The misnamed kthread_create() and friends have been renamed
2133 to kproc_create() etc. Many of the callers already
2134 used kproc_start()..
2135 I will return kthread_create() and friends in a while
2136 with implementations that actually create threads, not procs.
2137 Renaming corresponds with version 800002.
2146 Avoid using make -j when upgrading. While generally safe, there are
2147 sometimes problems using -j to upgrade. If your upgrade fails with
2148 -j, please try again without -j. From time to time in the past there
2149 have been problems using -j with buildworld and/or installworld. This
2150 is especially true when upgrading between "distant" versions (eg one
2151 that cross a major release boundary or several minor releases, or when
2152 several months have passed on the -current branch).
2154 Sometimes, obscure build problems are the result of environment
2155 poisoning. This can happen because the make utility reads its
2156 environment when searching for values for global variables. To run
2157 your build attempts in an "environmental clean room", prefix all make
2158 commands with 'env -i '. See the env(1) manual page for more details.
2160 When upgrading from one major version to another it is generally best
2161 to upgrade to the latest code in the currently installed branch first,
2162 then do an upgrade to the new branch. This is the best-tested upgrade
2163 path, and has the highest probability of being successful. Please try
2164 this approach before reporting problems with a major version upgrade.
2166 When upgrading a live system, having a root shell around before
2167 installing anything can help undo problems. Not having a root shell
2168 around can lead to problems if pam has changed too much from your
2169 starting point to allow continued authentication after the upgrade.
2173 When upgrading the boot ZFS pool to a new version, always follow
2176 1.) recompile and reinstall the ZFS boot loader and boot block
2177 (this is part of "make buildworld" and "make installworld")
2179 2.) update the ZFS boot block on your boot drive
2181 The following example updates the ZFS boot block on the first
2182 partition (freebsd-boot) of a GPT partitioned drive ad0:
2183 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0"
2185 Non-boot pools do not need these updates.
2189 If you are updating from a prior version of FreeBSD (even one just
2190 a few days old), you should follow this procedure. It is the most
2191 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
2193 make kernel-toolchain
2194 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
2195 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
2197 To test a kernel once
2198 ---------------------
2199 If you just want to boot a kernel once (because you are not sure
2200 if it works, or if you want to boot a known bad kernel to provide
2201 debugging information) run
2202 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
2203 nextboot -k testkernel
2205 To just build a kernel when you know that it won't mess you up
2206 --------------------------------------------------------------
2207 This assumes you are already running a CURRENT system. Replace
2208 ${arch} with the architecture of your machine (e.g. "i386",
2209 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc).
2211 cd src/sys/${arch}/conf
2212 config KERNEL_NAME_HERE
2213 cd ../compile/KERNEL_NAME_HERE
2218 If this fails, go to the "To build a kernel" section.
2220 To rebuild everything and install it on the current system.
2221 -----------------------------------------------------------
2222 # Note: sometimes if you are running current you gotta do more than
2223 # is listed here if you are upgrading from a really old current.
2225 <make sure you have good level 0 dumps>
2227 make kernel KERNCONF=YOUR_KERNEL_HERE
2229 <reboot in single user> [3]
2236 To cross-install current onto a separate partition
2237 --------------------------------------------------
2238 # In this approach we use a separate partition to hold
2239 # current's root, 'usr', and 'var' directories. A partition
2240 # holding "/", "/usr" and "/var" should be about 2GB in
2243 <make sure you have good level 0 dumps>
2246 make buildkernel KERNCONF=YOUR_KERNEL_HERE
2247 <maybe newfs current's root partition>
2248 <mount current's root partition on directory ${CURRENT_ROOT}>
2249 make installworld DESTDIR=${CURRENT_ROOT}
2250 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
2251 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
2252 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
2253 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
2254 <reboot into current>
2255 <do a "native" rebuild/install as described in the previous section>
2256 <maybe install compatibility libraries from ports/misc/compat*>
2260 To upgrade in-place from stable to current
2261 ----------------------------------------------
2262 <make sure you have good level 0 dumps>
2264 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
2266 <reboot in single user> [3]
2273 Make sure that you've read the UPDATING file to understand the
2274 tweaks to various things you need. At this point in the life
2275 cycle of current, things change often and you are on your own
2276 to cope. The defaults can also change, so please read ALL of
2277 the UPDATING entries.
2279 Also, if you are tracking -current, you must be subscribed to
2280 freebsd-current@freebsd.org. Make sure that before you update
2281 your sources that you have read and understood all the recent
2282 messages there. If in doubt, please track -stable which has
2283 much fewer pitfalls.
2285 [1] If you have third party modules, such as vmware, you
2286 should disable them at this point so they don't crash your
2289 [3] From the bootblocks, boot -s, and then do
2294 adjkerntz -i # if CMOS is wall time
2295 Also, when doing a major release upgrade, it is required that
2296 you boot into single user mode to do the installworld.
2298 [4] Note: This step is non-optional. Failure to do this step
2299 can result in a significant reduction in the functionality of the
2300 system. Attempting to do it by hand is not recommended and those
2301 that pursue this avenue should read this file carefully, as well
2302 as the archives of freebsd-current and freebsd-hackers mailing lists
2303 for potential gotchas. The -U option is also useful to consider.
2304 See mergemaster(8) for more information.
2306 [5] Usually this step is a noop. However, from time to time
2307 you may need to do this if you get unknown user in the following
2308 step. It never hurts to do it all the time. You may need to
2309 install a new mergemaster (cd src/usr.sbin/mergemaster && make
2310 install) after the buildworld before this step if you last updated
2311 from current before 20130425 or from -stable before 20130430.
2313 [6] This only deletes old files and directories. Old libraries
2314 can be deleted by "make delete-old-libs", but you have to make
2315 sure that no program is using those libraries anymore.
2317 [8] In order to have a kernel that can run the 4.x binaries needed to
2318 do an installworld, you must include the COMPAT_FREEBSD4 option in
2319 your kernel. Failure to do so may leave you with a system that is
2320 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is
2321 required to run the 5.x binaries on more recent kernels. And so on
2322 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7.
2324 Make sure that you merge any new devices from GENERIC since the
2325 last time you updated your kernel config file.
2327 [9] When checking out sources, you must include the -P flag to have
2328 cvs prune empty directories.
2330 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
2331 "?=" instead of the "=" assignment operator, so that buildworld can
2332 override the CPUTYPE if it needs to.
2334 MAKEOBJDIRPREFIX must be defined in an environment variable, and
2335 not on the command line, or in /etc/make.conf. buildworld will
2336 warn if it is improperly defined.
2339 This file contains a list, in reverse chronological order, of major
2340 breakages in tracking -current. It is not guaranteed to be a complete
2341 list of such breakages, and only contains entries since October 10, 2007.
2342 If you need to see UPDATING entries from before that date, you will need
2343 to fetch an UPDATING file from an older FreeBSD release.
2345 Copyright information:
2347 Copyright 1998-2009 M. Warner Losh. All Rights Reserved.
2349 Redistribution, publication, translation and use, with or without
2350 modification, in full or in part, in any form or format of this
2351 document are permitted without further permission from the author.
2353 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
2354 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
2355 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
2356 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
2357 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
2358 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
2359 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2360 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
2361 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
2362 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
2363 POSSIBILITY OF SUCH DAMAGE.
2365 Contact Warner Losh if you have any questions about your use of
projects / FreeBSD / releng / 10.2.git / blob