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 20171017 p22 FreeBSD-SA-17:07.wpa
21 Fix WPA2 protocol vulnerability. [SA-17:07]
23 20170810 p21 FreeBSD-SA-17:06.openssh
25 Fix OpenSSH Denial of Service vulnerability. [SA-17:06]
27 20170712 p20 FreeBSD-SA-17:05.heimdal
28 FreeBSD-EN-17:06.hyperv
30 Fix heimdal KDC-REP service name validation vulnerability [SA-17:05]
32 Boot compatibility improvements with Azure VMs. [EN-17:06]
34 20170427 p19 FreeBSD-SA-17:04.ipfilter
36 Fix ipfilter(4) fragment handling panic. [SA-17:04]
38 20170412 p18 FreeBSD-SA-17:03.ntp
41 Fix multiple vulnerabilities of ntp. [SA-17:03]
43 Xen migration enhancements. [EN-17:05]
45 20170223 p17 FreeBSD-SA-17:02.openssl
47 Fix OpenSSL RC4_MD5 cipher vulnerability.
49 20170111 p16 FreeBSD-SA-17:01.openssh
51 Fix multiple vulnerabilities of OpenSSH.
53 20161222 p15 FreeBSD-SA-16:39.ntp
55 Fix multiple vulnerabilities of ntp.
57 20161208 p14 FreeBSD-SA-16:37.libc [revised]
59 Fix regressions introduced by SA-16:37.libc.
61 20161206 p13 FreeBSD-SA-16:36.telnetd
63 FreeBSD-SA-16:38.bhyve
64 FreeBSD-EN-16:19.tzcode
65 FreeBSD-EN-16:20.tzdata
67 Fix possible login(1) argument injection in telnetd(8). [SA-16:36]
68 Fix link_ntoa(3) buffer overflow in libc. [SA-16:37]
69 Fix possible escape from bhyve(8) virtual machine. [SA-16:38]
70 Fix warnings about valid time zone abbreviations. [EN-16:19]
71 Update timezone database information. [EN-16:20]
73 20161102 p12 FreeBSD-SA-16:33.openssh
74 FreeBSD-SA-16:35.openssl
76 Fix OpenSSH remote Denial of Service vulnerability. [SA-16:33]
78 Fix OpenSSL remote DoS vulnerability. [SA-16:35]
80 20161025 p11 FreeBSD-SA-16:15.sysarch [revised]
83 Fix incorrect argument validation in sysarch(2). [SA-16:15]
84 Fix virtual memory subsystem bugs. [EN-16:17]
86 20161010 p10 FreeBSD-SA-16:29.bspatch
87 FreeBSD-SA-16:30.portsnap
88 FreeBSD-SA-16:31.libarchive
90 Fix bspatch heap overflow vulnerability. [SA-16:29]
92 Fix multiple portsnap vulnerabilities. [SA-16:30]
94 Fix multiple libarchive vulnerabilities. [SA-16:31]
96 20160926 p9 FreeBSD-SA-16:26.openssl [revised]
98 Fix OpenSSL regression introduced in SA-16:26.
100 20160923 p8 FreeBSD-SA-16:26.openssl
102 Fix multiple OpenSSL vulnerabilitites.
104 20160811 p7 FreeBSD-EN-16:10.dhclient
105 FreeBSD-EN-16:11.vmbus
106 FreeBSD-EN-16:12.hv_storvsc
107 FreeBSD-EN-16:13.vmbus
108 FreeBSD-EN-16:14.hv_storvsc
109 FreeBSD-EN-16:15.vmbus
110 FreeBSD-EN-16:16.hv_storvsc
112 Fix handling of unknown options from a DHCP server. [EN-16:10]
113 Fix a panic in hv_vmbus(4). [EN-16:11]
114 Fix missing hotplugged disk in hv_storvsc(4). [EN-16:12]
115 Fix the timecounter emulation in hv_vmbus(4). [EN-16:13]
116 Fix callout(9) handling in hv_storvsc(4). [EN-16:14]
117 Fix memory allocation issues in hv_vmbus(4). [EN-16:15]
118 Fix SCSI command handling in hv_storvsc(4). [EN-16:16]
120 20160725 p6 FreeBSD-SA-16:25.bspatch
121 FreeBSD-EN-16:09.freebsd-update
123 Fix bspatch heap overflow vulnerability. [SA-16:25]
125 Fix freebsd-update(8) support of FreeBSD 11.0 release
126 distribution. [EN-16:09]
128 20160604 p5 FreeBSD-SA-16:24.ntp
130 Fix multiple vulnerabilities of ntp.
132 20160531 p4 FreeBSD-SA-16:20.linux
133 FreeBSD-SA-16:21.43bsd
134 FreeBSD-SA-16:22.libarchive
136 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20]
137 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21]
138 Fix directory traversal in cpio(1). [SA-16:22]
141 20160517 p3 FreeBSD-SA-16:18.atkbd
142 FreeBSD-SA-16:19.sendmsg
144 Fix buffer overflow in keyboard driver. [SA-16:18]
146 Fix incorrect argument handling in sendmsg(2). [SA-16:19]
148 20160504 p2 FreeBSD-SA-16:17.openssl
149 FreeBSD-EN-16:06.libc
153 Fix multiple OpenSSL vulnerabilitites. [SA-16:17]
155 Fix performance regression in libc hash(3). [EN-16:06]
157 Fix excessive latency in x86 IPI delivery. [EN-16:07]
159 Fix memory leak in ZFS. [EN-16:08]
161 20160429 p1 FreeBSD-SA-16:16.ntp
163 Fix multiple vulnerabilities of ntp.
169 The NONE and HPN patches has been removed from OpenSSH. They are
170 still available in the security/openssh-portable port.
173 r292223 changed the internal interface between the nfsd.ko and
174 nfscommon.ko modules. As such, they must both be upgraded to-gether.
175 __FreeBSD_version has been bumped because of this.
178 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0.
179 Kernel modules isp_2400_multi and isp_2500_multi were removed and
180 should be replaced with isp_2400 and isp_2500 modules respectively.
183 The menu.rc and loader.rc files will now be replaced during
184 upgrades. Please migrate local changes to menu.rc.local and
185 loader.rc.local instead.
188 NTP has been upgraded to 4.2.8p4.
191 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from
192 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf
193 and devel/kyua to version 0.20+ and adjust any calling code to work
194 with Kyuafile and kyua.
197 The polarity of Pulse Per Second (PPS) capture events with the
198 uart(4) driver has been corrected. Prior to this change the PPS
199 "assert" event corresponded to the trailing edge of a positive PPS
200 pulse and the "clear" event was the leading edge of the next pulse.
202 As the width of a PPS pulse in a typical GPS receiver is on the
203 order of 1 millisecond, most users will not notice any significant
204 difference with this change.
206 Anyone who has compensated for the historical polarity reversal by
207 configuring a negative offset equal to the pulse width will need to
208 remove that workaround.
211 From legacy ata(4) driver was removed support for SATA controllers
212 supported by more functional drivers ahci(4), siis(4) and mvs(4).
213 Kernel modules ataahci and ataadaptec were removed completely,
214 replaced by ahci and mvs modules respectively.
220 As ZFS requires more kernel stack pages than is the default on some
221 architectures e.g. i386, it now warns if KSTACK_PAGES is less than
222 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing).
224 Please consider using 'options KSTACK_PAGES=X' where X is greater
225 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations.
228 The default Unbound configuration now enables remote control
229 using a local socket. Users who have already enabled the
230 local_unbound service should regenerate their configuration
231 by running "service local_unbound setup" as root.
234 An additional fix for the issue described in the 20150614 sendmail
235 entry below has been been committed in revision 284786.
238 The fix for the issue described in the 20150614 sendmail entry
239 below has been been committed in revision 284485. The work
240 around described in that entry is no longer needed unless the
241 default setting is overridden by a confDH_PARAMETERS configuration
242 setting of '5' or pointing to a 512 bit DH parameter file.
245 The import of openssl to address the FreeBSD-SA-15:10.openssl
246 security advisory includes a change which rejects handshakes
247 with DH parameters below 768 bits. sendmail releases prior
248 to 8.15.2 (not yet released), defaulted to a 512 bit
249 DH parameter setting for client connections. To work around
250 this interoperability, sendmail can be configured to use a
251 2048 bit DH parameter by:
253 1. Edit /etc/mail/`hostname`.mc
254 2. If a setting for confDH_PARAMETERS does not exist or
255 exists and is set to a string beginning with '5',
257 3. If a setting for confDH_PARAMETERS exists and is set to
258 a file path, create a new file with:
259 openssl dhparam -out /path/to/file 2048
260 4. Rebuild the .cf file:
261 cd /etc/mail/; make; make install
263 cd /etc/mail/; make restart
265 A sendmail patch is coming, at which time this file will be
269 chmod, chflags, chown and chgrp now affect symlinks in -R mode as
270 defined in symlink(7); previously symlinks were silently ignored.
273 The const qualifier has been removed from iconv(3) to comply with
274 POSIX. The ports tree is aware of this from r384038 onwards.
277 At svn r275807, The default linux compat kernel ABI has been adjusted
278 to 2.6.18 in support of the linux-c6 compat ports infrastructure
279 update. If you wish to continue using the linux-f10 compat ports,
280 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are
281 encouraged to update their linux-compat packages to linux-c6 during
282 their next update cycle.
284 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports.
287 pjdfstest has been integrated into kyua as an opt-in test suite.
288 Please see share/doc/pjdfstest/README for a more details on how to
295 The ofwfb driver, used to provide a graphics console on PowerPC when
296 using vt(4), no longer allows mmap() of all of physical memory. This
297 will prevent Xorg on PowerPC with some ATI graphics cards from
298 initializing properly unless x11-servers/xorg-server is updated to
302 The libatf-c and libatf-c++ major versions were downgraded to 0 and
303 1 respectively to match the upstream numbers. They were out of
304 sync because, when they were originally added to FreeBSD, the
305 upstream versions were not respected. These libraries are private
306 and not yet built by default, so renumbering them should be a
307 non-issue. However, unclean source trees will yield broken test
308 programs once the operator executes "make delete-old-libs" after a
311 Additionally, the atf-sh binary was made private by moving it into
312 /usr/libexec/. Already-built shell test programs will keep the
313 path to the old binary so they will break after "make delete-old"
316 If you are using WITH_TESTS=yes (not the default), wipe the object
317 tree and rebuild from scratch to prevent spurious test failures.
318 This is only needed once: the misnumbered libraries and misplaced
319 binaries have been added to OptionalObsoleteFiles.inc so they will
320 be removed during a clean upgrade.
323 The ixgbe tunables now match their sysctl counterparts, for example:
324 hw.ixgbe.enable_aim => hw.ix.enable_aim
325 Anyone using ixgbe tunables should ensure they update /boot/loader.conf.
328 The NFSv4.1 server committed by r269398 changes the internal
329 function call interfaces used between the NFS and krpc modules.
330 As such, __FreeBSD_version was bumped.
333 The default unbound configuration has been modified to address
334 issues with reverse lookups on networks that use private
335 address ranges. If you use the local_unbound service, run
336 "service local_unbound setup" as root to regenerate your
337 configuration, then "service local_unbound reload" to load the
341 It is no longer necessary to include the dwarf version in your DEBUG
342 options in your kernel config file. The bug that required it to be
343 placed in the config file has bene fixed. DEBUG should now just
344 contain -g. The build system will automatically update things
345 to do the right thing.
348 Several ABI breaking changes were merged to CTL and new iSCSI code.
349 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and
350 iscsictl need to be rebuilt to work with a new kernel.
353 The WITHOUT_VT_SUPPORT kernel config knob has been renamed
354 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning
355 which differs from the behaviour controlled by this knob.)
358 On i386 and amd64 systems, the onifconsole flag is now set by default
359 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled
360 as a login TTY if it is set in the bootloader as an active kernel
361 console. No changes in behavior should result otherwise. To revert to
362 the previous behavior, set ttyu0 to "off" in /etc/ttys.
365 Clang and llvm have been upgraded to 3.4.1 release.
368 Clang and llvm have been upgraded to 3.4 release.
371 If a Makefile in a tests/ directory was auto-generating a Kyuafile
372 instead of providing an explicit one, this would prevent such
373 Makefile from providing its own Kyuafile in the future during
374 NO_CLEAN builds. This has been fixed in the Makefiles but manual
375 intervention is needed to clean an objdir if you use NO_CLEAN:
376 # find /usr/obj -name Kyuafile | xargs rm -f
379 OpenSSH will now ignore errors caused by kernel lacking of Capsicum
380 capability mode support. Please note that enabling the feature in
381 kernel is still highly recommended.
384 OpenSSH is now built with sandbox support, and will use sandbox as
385 the default privilege separation method. This requires Capsicum
386 capability mode support in kernel.
389 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has
390 been deprecated and will not be part of FreeBSD 11.0 and later
391 releases. If you use this driver, please consider switching to
392 the nfe(4) driver instead.
398 The behavior of gss_pseudo_random() for the krb5 mechanism
399 has changed, for applications requesting a longer random string
400 than produced by the underlying enctype's pseudo-random() function.
401 In particular, the random string produced from a session key of
402 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will
403 be different at the 17th octet and later, after this change.
404 The counter used in the PRF+ construction is now encoded as a
405 big-endian integer in accordance with RFC 4402.
406 __FreeBSD_version is bumped to 1000701.
409 The WITHOUT_ATF build knob has been removed and its functionality
410 has been subsumed into the more generic WITHOUT_TESTS. If you were
411 using the former to disable the build of the ATF libraries, you
412 should change your settings to use the latter.
415 The default version of mtree is nmtree which is obtained from
416 NetBSD. The output is generally the same, but may vary
417 slightly. If you found you need identical output adding
418 "-F freebsd9" to the command line should do the trick. For the
419 time being, the old mtree is available as fmtree.
422 libbsdyml has been renamed to libyaml and moved to /usr/lib/private.
423 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg
424 1.1.4_8 and verify bsdyml not linked in, before running "make
426 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean
428 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml
431 The rc.d/jail script has been updated to support jail(8)
432 configuration file. The "jail_<jname>_*" rc.conf(5) variables
433 for per-jail configuration are automatically converted to
434 /var/run/jail.<jname>.conf before the jail(8) utility is invoked.
435 This is transparently backward compatible. See below about some
436 incompatibilities and rc.conf(5) manual page for more details.
438 These variables are now deprecated in favor of jail(8) configuration
439 file. One can use "rc.d/jail config <jname>" command to generate
440 a jail(8) configuration file in /var/run/jail.<jname>.conf without
441 running the jail(8) utility. The default pathname of the
442 configuration file is /etc/jail.conf and can be specified by
443 using $jail_conf or $jail_<jname>_conf variables.
445 Please note that jail_devfs_ruleset accepts an integer at
446 this moment. Please consider to rewrite the ruleset name
450 BIND has been removed from the base system. If all you need
451 is a local resolver, simply enable and start the local_unbound
452 service instead. Otherwise, several versions of BIND are
453 available in the ports tree. The dns/bind99 port is one example.
455 With this change, nslookup(1) and dig(1) are no longer in the base
456 system. Users should instead use host(1) and drill(1) which are
457 in the base system. Alternatively, nslookup and dig can
458 be obtained by installing the dns/bind-tools port.
461 With the addition of unbound(8), a new unbound user is now
462 required during installworld. "mergemaster -p" can be used to
463 add the user prior to installworld, as documented in the handbook.
466 OpenSSH is now built with DNSSEC support, and will by default
467 silently trust signed SSHFP records. This can be controlled with
468 the VerifyHostKeyDNS client configuration setting. DNSSEC support
469 can be disabled entirely with the WITHOUT_LDNS option in src.conf.
472 The GNU Compiler Collection and C++ standard library (libstdc++)
473 are no longer built by default on platforms where clang is the system
474 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX
478 The PROCDESC kernel option is now part of the GENERIC kernel
479 configuration and is required for the rwhod(8) to work.
480 If you are using custom kernel configuration, you should include
484 The API and ABI related to the Capsicum framework was modified
485 in backward incompatible way. The userland libraries and programs
486 have to be recompiled to work with the new kernel. This includes the
487 following libraries and programs, but the whole buildworld is
488 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl,
489 kdump, procstat, rwho, rwhod, uniq.
492 AES-NI intrinsic support has been added to gcc. The AES-NI module
493 has been updated to use this support. A new gcc is required to build
494 the aesni module on both i386 and amd64.
497 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices.
498 Thus "device padlock_rng" and "device rdrand_rng" should be
499 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG".
502 WITH_ICONV has been split into two feature sets. WITH_ICONV now
503 enables just the iconv* functionality and is now on by default.
504 WITH_LIBICONV_COMPAT enables the libiconv api and link time
505 compatability. Set WITHOUT_ICONV to build the old way.
506 If you have been using WITH_ICONV before, you will very likely
507 need to turn on WITH_LIBICONV_COMPAT.
510 INVARIANTS option now enables DEBUG for code with OpenSolaris and
511 Illumos origin, including ZFS. If you have INVARIANTS in your
512 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG
514 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS)
515 locks if WITNESS option was set. Because that generated a lot of
516 witness(9) reports and all of them were believed to be false
517 positives, this is no longer done. New option OPENSOLARIS_WITNESS
518 can be used to achieve the previous behavior.
521 Timer values in IPv6 data structures now use time_uptime instead
522 of time_second. Although this is not a user-visible functional
523 change, userland utilities which directly use them---ndp(8),
524 rtadvd(8), and rtsold(8) in the base system---need to be updated
528 find -delete can now delete the pathnames given as arguments,
529 instead of only files found below them or if the pathname did
530 not contain any slashes. Formerly, the following error message
533 find: -delete: <path>: relative path potentially not safe
535 Deleting the pathnames given as arguments can be prevented
536 without error messages using -mindepth 1 or by changing
537 directory and passing "." as argument to find. This works in the
538 old as well as the new version of find.
541 Behavior of devfs rules path matching has been changed.
542 Pattern is now always matched against fully qualified devfs
543 path and slash characters must be explicitly matched by
544 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs
545 subdirectories must be reviewed.
548 The default ARM ABI has changed to the ARM EABI. The old ABI is
549 incompatible with the ARM EABI and all programs and modules will
550 need to be rebuilt to work with a new kernel.
552 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set.
554 NOTE: Support for the old ABI will be removed in the future and
555 users are advised to upgrade.
558 pkg_install has been disconnected from the build if you really need it
559 you should add WITH_PKGTOOLS in your src.conf(5).
562 Most of network statistics structures were changed to be able
563 keep 64-bits counters. Thus all tools, that work with networking
564 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.)
567 Fix a bug that allowed a tracing process (e.g. gdb) to write
568 to a memory-mapped file in the traced process's address space
569 even if neither the traced process nor the tracing process had
570 write access to that file.
573 CVS has been removed from the base system. An exact copy
574 of the code is available from the devel/cvs port.
577 Some people report the following error after the switch to bmake:
579 make: illegal option -- J
580 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable]
582 *** [buildworld] Error code 2
584 this likely due to an old instance of make in
585 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE})
586 which src/Makefile will use that blindly, if it exists, so if
587 you see the above error:
589 rm -rf `make -V MAKEPATH`
594 Use bmake by default.
595 Whereas before one could choose to build with bmake via
596 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old
597 make. The goal is to remove these knobs for 10-RELEASE.
599 It is worth noting that bmake (like gmake) treats the command
600 line as the unit of failure, rather than statements within the
601 command line. Thus '(cd some/where && dosomething)' is safer
602 than 'cd some/where; dosomething'. The '()' allows consistent
603 behavior in parallel build.
606 Fix a bug that allows NFS clients to issue READDIR on files.
609 The WITHOUT_IDEA option has been removed because
610 the IDEA patent expired.
613 The sysctl which controls TRIM support under ZFS has been renamed
614 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been
618 The mergemaster command now uses the default MAKEOBJDIRPREFIX
619 rather than creating it's own in the temporary directory in
620 order allow access to bootstrapped versions of tools such as
621 install and mtree. When upgrading from version of FreeBSD where
622 the install command does not support -l, you will need to
623 install a new mergemaster command if mergemaster -p is required.
624 This can be accomplished with the command (cd src/usr.sbin/mergemaster
628 Legacy ATA stack, disabled and replaced by new CAM-based one since
629 FreeBSD 9.0, completely removed from the sources. Kernel modules
630 atadisk and atapi*, user-level tools atacontrol and burncd are
631 removed. Kernel option `options ATA_CAM` is now permanently enabled
635 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2)
636 and socketpair(2). Software, in particular Kerberos, may
637 automatically detect and use these during building. The resulting
638 binaries will not work on older kernels.
641 CTL_DISABLE has also been added to the sparc64 GENERIC (for further
642 information, see the respective 20130304 entry).
645 Recent commits to callout(9) changed the size of struct callout,
646 so the KBI is probably heavily disturbed. Also, some functions
647 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced
648 by macros. Every kernel module using it won't load, so rebuild
651 The ctl device has been re-enabled in GENERIC for i386 and amd64,
652 but does not initialize by default (because of the new CTL_DISABLE
653 option) to save memory. To re-enable it, remove the CTL_DISABLE
654 option from the kernel config file or set kern.cam.ctl.disable=0
655 in /boot/loader.conf.
658 The ctl device has been disabled in GENERIC for i386 and amd64.
659 This was done due to the extra memory being allocated at system
660 initialisation time by the ctl driver which was only used if
661 a CAM target device was created. This makes a FreeBSD system
662 unusable on 128MB or less of RAM.
665 A new compression method (lz4) has been merged to -HEAD. Please
666 refer to zpool-features(7) for more information.
668 Please refer to the "ZFS notes" section of this file for information
669 on upgrading boot ZFS pools.
672 A BSD-licensed patch(1) variant has been added and is installed
673 as bsdpatch, being the GNU version the default patch.
674 To inverse the logic and use the BSD-licensed one as default,
675 while having the GNU version installed as gnupatch, rebuild
676 and install world with the WITH_BSD_PATCH knob set.
679 Due to the use of the new -l option to install(1) during build
680 and install, you must take care not to directly set the INSTALL
681 make variable in your /etc/make.conf, /etc/src.conf, or on the
682 command line. If you wish to use the -C flag for all installs
683 you may be able to add INSTALL+=-C to /etc/make.conf or
687 The install(1) option -M has changed meaning and now takes an
688 argument that is a file or path to append logs to. In the
689 unlikely event that -M was the last option on the command line
690 and the command line contained at least two files and a target
691 directory the first file will have logs appended to it. The -M
692 option served little practical purpose in the last decade so its
693 use is expected to be extremely rare.
696 After switching to Clang as the default compiler some users of ZFS
697 on i386 systems started to experience stack overflow kernel panics.
698 Please consider using 'options KSTACK_PAGES=4' in such configurations.
701 GEOM_LABEL now mangles label names read from file system metadata.
702 Mangling affect labels containing spaces, non-printable characters,
703 '%' or '"'. Device names in /etc/fstab and other places may need to
707 By default, only the 10 most recent kernel dumps will be saved. To
708 restore the previous behaviour (no limit on the number of kernel dumps
709 stored in the dump directory) add the following line to /etc/rc.conf:
714 With the addition of auditdistd(8), a new auditdistd user is now
715 required during installworld. "mergemaster -p" can be used to
716 add the user prior to installworld, as documented in the handbook.
719 The sin6_scope_id member variable in struct sockaddr_in6 is now
720 filled by the kernel before passing the structure to the userland via
721 sysctl or routing socket. This means the KAME-specific embedded scope
722 id in sin6_addr.s6_addr[2] is always cleared in userland application.
723 This behavior can be controlled by net.inet6.ip6.deembed_scopeid.
724 __FreeBSD_version is bumped to 1000025.
727 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default.
728 This means that the world and kernel will be compiled with clang
729 and that clang will be installed as /usr/bin/cc, /usr/bin/c++,
730 and /usr/bin/cpp. To disable this behavior and revert to building
731 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions
732 of current may need to bootstrap WITHOUT_CLANG first if the clang
733 build fails (its compatibility window doesn't extend to the 9 stable
737 The IPFIREWALL_FORWARD kernel option has been removed. Its
738 functionality now turned on by default.
741 The ZERO_COPY_SOCKET kernel option has been removed and
742 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP.
743 NB: SOCKET_SEND_COW uses the VM page based copy-on-write
744 mechanism which is not safe and may result in kernel crashes.
745 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current
746 driver supports disposeable external page sized mbuf storage.
747 Proper replacements for both zero-copy mechanisms are under
748 consideration and will eventually lead to complete removal
749 of the two kernel options.
752 The IPv4 network stack has been converted to network byte
753 order. The following modules need to be recompiled together
754 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4),
755 pf(4), ipfw(4), ng_ipfw(4), stf(4).
758 Support for non-MPSAFE filesystems was removed from VFS. The
759 VFS_VERSION was bumped, all filesystem modules shall be
763 All the non-MPSAFE filesystems have been disconnected from
764 the build. The full list includes: codafs, hpfs, ntfs, nwfs,
765 portalfs, smbfs, xfs.
768 The interface cloning API and ABI has changed. The following
769 modules need to be recompiled together with kernel:
770 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4),
771 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4),
772 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4).
775 The sdhci driver was split in two parts: sdhci (generic SD Host
776 Controller logic) and sdhci_pci (actual hardware driver).
777 No kernel config modifications are required, but if you
778 load sdhc as a module you must switch to sdhci_pci instead.
781 Import the FUSE kernel and userland support into base system.
784 The GNU sort(1) program has been removed since the BSD-licensed
785 sort(1) has been the default for quite some time and no serious
786 problems have been reported. The corresponding WITH_GNU_SORT
790 The pfil(9) API/ABI for AF_INET family has been changed. Packet
791 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled
795 The net80211(4) ABI has been changed to allow for improved driver
796 PS-POLL and power-save support. All wireless drivers need to be
797 recompiled to work with the new kernel.
800 The random(4) support for the VIA hardware random number
801 generator (`PADLOCK') is no longer enabled unconditionally.
802 Add the padlock_rng device in the custom kernel config if
803 needed. The GENERIC kernels on i386 and amd64 do include the
804 device, so the change only affects the custom kernel
808 The pf(4) packet filter ABI has been changed. pfctl(8) and
809 snmp_pf module need to be recompiled to work with new kernel.
812 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged
813 to -HEAD. Pools that have empty_bpobj in active state can not be
814 imported read-write with ZFS implementations that do not support
815 this feature. For more information read the zpool-features(5)
819 The sparc64 ZFS loader has been changed to no longer try to auto-
820 detect ZFS providers based on diskN aliases but now requires these
821 to be explicitly listed in the OFW boot-device environment variable.
824 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring
825 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are
826 configuration changes. Make sure to merge /etc/ssl/openssl.cnf.
829 The following sysctls and tunables have been renamed for consistency
830 with other variables:
831 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered
832 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered
835 The sort utility has been replaced with BSD sort. For now, GNU sort
836 is also available as "gnusort" or the default can be set back to
837 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be
838 installed as "bsdsort".
841 A new version of ZFS (pool version 5000) has been merged to -HEAD.
842 Starting with this version the old system of ZFS pool versioning
843 is superseded by "feature flags". This concept enables forward
844 compatibility against certain future changes in functionality of ZFS
845 pools. The first read-only compatible "feature flag" for ZFS pools
846 is named "com.delphix:async_destroy". For more information
847 read the new zpool-features(5) manual page.
848 Please refer to the "ZFS notes" section of this file for information
849 on upgrading boot ZFS pools.
852 The malloc(3) implementation embedded in libc now uses sources imported
853 as contrib/jemalloc. The most disruptive API change is to
854 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf,
855 delete it prior to installworld, and optionally re-create it using the
856 new format after rebooting. See malloc.conf(5) for details
857 (specifically the TUNING section and the "opt.*" entries in the MALLCTL
861 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb
862 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is
863 now spelled mips. This is to aid compatibility with third-party
864 software that expects this naming scheme in uname(3). Little-endian
865 settings are unchanged. If you are updating a big-endian mips64 machine
866 from before this change, you may need to set MACHINE_ARCH=mips64 in
867 your environment before the new build system will recognize your machine.
870 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported
874 Now unix domain sockets behave "as expected" on nullfs(5). Previously
875 nullfs(5) did not pass through all behaviours to the underlying layer,
876 as a result if we bound to a socket on the lower layer we could connect
877 only to the lower path; if we bound to the upper layer we could connect
878 only to the upper path. The new behavior is one can connect to both the
879 lower and the upper paths regardless what layer path one binds to.
882 The getifaddrs upgrade path broken with 20111215 has been restored.
883 If you have upgraded in between 20111215 and 20120209 you need to
884 recompile libc again with your kernel. You still need to recompile
885 world to be able to configure CARP but this restriction already
889 The set_rcvar() function has been removed from /etc/rc.subr. All
890 base and ports rc.d scripts have been updated, so if you have a
891 port installed with a script in /usr/local/etc/rc.d you can either
892 hand-edit the rcvar= line, or reinstall the port.
894 An easy way to handle the mass-update of /etc/rc.d:
895 rm /etc/rc.d/* && mergemaster -i
898 panic(9) now stops other CPUs in the SMP systems, disables interrupts
899 on the current CPU and prevents other threads from running.
900 This behavior can be reverted using the kern.stop_scheduler_on_panic
902 The new behavior can be incompatible with kern.sync_on_panic.
905 The carp(4) facility has been changed significantly. Configuration
906 of the CARP protocol via ifconfig(8) has changed, as well as format
907 of CARP events submitted to devd(8) has changed. See manual pages
908 for more information. The arpbalance feature of carp(4) is currently
909 not supported anymore.
911 Size of struct in_aliasreq, struct in6_aliasreq has changed. User
912 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8),
913 need to be recompiled.
916 The acpi_wmi(4) status device /dev/wmistat has been renamed to
920 The option VFS_ALLOW_NONMPSAFE option has been added in order to
921 explicitely support non-MPSAFE filesystems.
922 It is on by default for all supported platform at this present
926 The broken amd(4) driver has been replaced with esp(4) in the amd64,
927 i386 and pc98 GENERIC kernel configuration files.
930 sysinstall has been removed
933 The stable/9 branch created in subversion. This corresponds to the
934 RELENG_9 branch in CVS.
937 This commit modifies vfs_register() so that it uses a hash
938 calculation to set vfc_typenum, which is enabled by default.
939 The first time a system is booted after this change, the
940 vfc_typenum values will change for all file systems. The
941 main effect of this is a change to the NFS server file handles
942 for file systems that use vfc_typenum in their fsid, such as ZFS.
943 It will, however, prevent vfc_typenum from changing when file
944 systems are loaded in a different order for subsequent reboots.
945 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf
946 until you are ready to remount all NFS clients after a reboot.
949 Bump the shared library version numbers for libraries that
950 do not use symbol versioning, have changed the ABI compared
951 to stable/8 and which shared library version was not bumped.
952 Done as part of 9.0-RELEASE cycle.
955 During the merge of Capsicum features, the fget(9) KPI was modified.
956 This may require the rebuilding of out-of-tree device drivers --
957 issues have been reported specifically with the nVidia device driver.
958 __FreeBSD_version is bumped to 900041.
960 Also, there is a period between 20110811 and 20110814 where the
961 special devices /dev/{stdin,stdout,stderr} did not work correctly.
962 Building world from a kernel during that window may not work.
965 The packet filter (pf) code has been updated to OpenBSD 4.5.
966 You need to update userland tools to be in sync with kernel.
967 This update breaks backward compatibility with earlier pfsync(4)
968 versions. Care must be taken when updating redundant firewall setups.
971 The following sysctls and tunables are retired on x86 platforms:
973 machdep.hlt_logical_cpus
974 The following sysctl is retired:
975 machdep.hyperthreading_allowed
976 The sysctls were supposed to provide a way to dynamically offline and
977 online selected CPUs on x86 platforms, but the implementation has not
978 been reliable especially with SCHED_ULE scheduler.
979 machdep.hyperthreading_allowed tunable is still available to ignore
980 hyperthreading CPUs at OS level.
981 Individual CPUs can be disabled using hint.lapic.X.disabled tunable,
982 where X is an APIC ID of a CPU. Be advised, though, that disabling
983 CPUs in non-uniform fashion will result in non-uniform topology and
984 may lead to sub-optimal system performance with SCHED_ULE, which is
988 cpumask_t type is retired and cpuset_t is used in order to describe
992 Changes to ifconfig(8) for dynamic address family detection mandate
993 that you are running a kernel of 20110525 or later. Make sure to
994 follow the update procedure to boot a new kernel before installing
998 Support for sun4v architecture is officially dropped
1001 Several KPI breaking changes have been committed to the mii(4) layer,
1002 the PHY drivers and consequently some Ethernet drivers using mii(4).
1003 This means that miibus.ko and the modules of the affected Ethernet
1004 drivers need to be recompiled.
1006 Note to kernel developers: Given that the OUI bit reversion problem
1007 was fixed as part of these changes all mii(4) commits related to OUIs,
1008 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific
1009 handling, no longer can be merged verbatim to stable/8 and previous
1013 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci'
1014 into their kernel configurations along with 'device pci'.
1017 The default NFS client is now the new NFS client, so fstype "newnfs"
1018 is now "nfs" and the regular/old NFS client is now fstype "oldnfs".
1019 Although mounts via fstype "nfs" will usually work without userland
1020 changes, it is recommended that the mount(8) and mount_nfs(8)
1021 commands be rebuilt from sources and that a link to mount_nfs called
1022 mount_oldnfs be created. The new client is compiled into the
1023 kernel with "options NFSCL" and this is needed for diskless root
1024 file systems. The GENERIC kernel configs have been changed to use
1025 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER.
1026 To use the regular/old client, you can "mount -t oldnfs ...". For
1027 a diskless root file system, you must also include a line like:
1029 vfs.root.mountfrom="oldnfs:"
1031 in the boot/loader.conf on the root fs on the NFS server to make
1032 a diskless root fs use the old client.
1035 The GENERIC kernels for all architectures now default to the new
1036 CAM-based ATA stack. It means that all legacy ATA drivers were
1037 removed and replaced by respective CAM drivers. If you are using
1038 ATA device names in /etc/fstab or other places, make sure to update
1039 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY,
1040 where 'Y's are the sequential numbers starting from zero for each type
1041 in order of detection, unless configured otherwise with tunables,
1042 see cam(4)). There will be symbolic links created in /dev/ to map
1043 old adX devices to the respective adaY. They should provide basic
1044 compatibility for file systems mounting in most cases, but they do
1045 not support old user-level APIs and do not have respective providers
1046 in GEOM. Consider using updated management tools with new device names.
1048 It is possible to load devices ahci, ata, siis and mvs as modules,
1049 but option ATA_CAM should remain in kernel configuration to make ata
1050 module work as CAM driver supporting legacy ATA controllers. Device ata
1051 still can be used in modular fashion (atacore + ...). Modules atadisk
1052 and atapi* are not used and won't affect operation in ATA_CAM mode.
1053 Note that to use CAM-based ATA kernel should include CAM devices
1054 scbus, pass, da (or explicitly ada), cd and optionally others. All of
1055 them are parts of the cam module.
1057 ataraid(4) functionality is now supported by the RAID GEOM class.
1058 To use it you can load geom_raid kernel module and use graid(8) tool
1059 for management. Instead of /dev/arX device names, use /dev/raid/rX.
1061 No kernel config options or code have been removed, so if a problem
1062 arises, please report it and optionally revert to the old ATA stack.
1063 In order to do it you can remove from the kernel config:
1068 , and instead add back:
1069 device atadisk # ATA disk drives
1070 device ataraid # ATA RAID drives
1071 device atapicd # ATAPI CDROM drives
1072 device atapifd # ATAPI floppy drives
1073 device atapist # ATAPI tape drives
1076 The default NFS server has been changed to the new server, which
1077 was referred to as the experimental server. If you need to switch
1078 back to the old NFS server, you must now put the "-o" option on
1079 both the mountd and nfsd commands. This can be done using the
1080 mountd_flags and nfs_server_flags rc.conf variables until an
1081 update to the rc scripts is committed, which is coming soon.
1084 The GNU Objective-C runtime library (libobjc), and other Objective-C
1085 related components have been removed from the base system. If you
1086 require an Objective-C library, please use one of the available ports.
1089 ath(4) has been split into bus- and device- modules. if_ath contains
1090 the HAL, the TX rate control and the network device code. if_ath_pci
1091 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb
1092 contains the AHB glue. Users need to load both if_ath_pci and if_ath
1093 in order to use ath on everything else.
1095 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only
1096 need to load if_ath and if_ath_pci for ath(4) operation.
1099 As part of the replacement of sysinstall, the process of building
1100 release media has changed significantly. For details, please re-read
1101 release(7), which has been updated to reflect the new build process.
1104 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This
1105 is the last available version under GPLv2. It brings a number of new
1106 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE
1107 4.1 and SSE 4.2), better support for powerpc64, a number of new
1108 directives, and lots of other small improvements. See the ChangeLog
1109 file in contrib/binutils for the full details.
1112 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868
1113 compliant, and will now use half of hash for authentication.
1114 This will break interoperability with all stacks (including all
1115 actual FreeBSD versions) who implement
1116 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for
1118 The only workaround with such peers is to use another HMAC
1119 algorithm for IPsec ("phase 2") authentication.
1122 Remove the uio_yield prototype and symbol. This function has
1123 been misnamed since it was introduced and should not be
1124 globally exposed with this name. The equivalent functionality
1125 is now available using kern_yield(curthread->td_user_pri).
1126 The function remains undocumented.
1129 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers,
1130 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking
1131 for scalar sysctls is defined but disabled. Code that needs
1132 UQUAD to pass the type checking that must compile on older
1133 systems where the define is not present can check against
1134 __FreeBSD_version >= 900030.
1136 The system dialog(1) has been replaced with a new version previously
1137 in ports as devel/cdialog. dialog(1) is mostly command-line compatible
1138 with the previous version, but the libdialog associated with it has
1139 a largely incompatible API. As such, the original version of libdialog
1140 will be kept temporarily as libodialog, until its base system consumers
1141 are replaced or updated. Bump __FreeBSD_version to 900030.
1144 If you are trying to run make universe on a -stable system, and you get
1145 the following warning:
1146 "Makefile", line 356: "Target architecture for i386/conf/GENERIC
1147 unknown. config(8) likely too old."
1148 or something similar to it, then you must upgrade your -stable system
1149 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in
1150 stable/8) or build the config from the latest stable/8 branch and
1151 install it on your system.
1153 Prior to this date, building a current universe on 8-stable system from
1154 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing
1155 error in the first kernel build phase. A new config on those old
1156 systems will fix that problem for older versions of -current.
1159 The TCP stack has been modified to allow Khelp modules to interact with
1160 it via helper hook points and store per-connection data in the TCP
1161 control block. Bump __FreeBSD_version to 900029. User space tools that
1162 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to
1166 Generic IEEE 802.3 annex 31B full duplex flow control support has been
1167 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along
1168 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted
1169 to take advantage of it instead of using custom implementations. This
1170 means that these drivers now no longer unconditionally advertise
1171 support for flow control but only do so if flow control is a selected
1172 media option. This was implemented in the generic support that way in
1173 order to allow flow control to be switched on and off via ifconfig(8)
1174 with the PHY specific default to typically off in order to protect
1175 from unwanted effects. Consequently, if you used flow control with
1176 one of the above mentioned drivers you now need to explicitly enable
1177 it, for example via:
1178 ifconfig bge0 media auto mediaopt flowcontrol
1180 Along with the above mentioned changes generic support for setting
1181 1000baseT master mode also has been added and brgphy(4), ciphy(4),
1182 e1000phy(4) as well as ip1000phy(4) have been converted to take
1183 advantage of it. This means that these drivers now no longer take the
1184 link0 parameter for selecting master mode but the master media option
1185 has to be used instead, for example like in the following:
1186 ifconfig bge0 media 1000baseT mediaopt full-duplex,master
1188 Selection of master mode now is also available with all other PHY
1189 drivers supporting 1000baseT.
1192 The TCP stack has received a significant update to add support for
1193 modularised congestion control and generally improve the clarity of
1194 congestion control decisions. Bump __FreeBSD_version to 900025. User
1195 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g.
1196 sockstat) need to be recompiled.
1199 The man(1) utility has been replaced by a new version that no longer
1200 uses /etc/manpath.config. Please consult man.conf(5) for how to
1201 migrate local entries to the new format.
1204 The copyright strings printed by login(1) and sshd(8) at the time of a
1205 new connection have been removed to follow other operating systems and
1209 A workaround for a fixed ld bug has been removed in kernel code,
1210 so make sure that your system ld is built from sources after
1211 revision 210245 from 2010-07-19 (r211583 if building head kernel
1212 on stable/8, r211584 for stable/7; both from 2010-08-21).
1213 A symptom of incorrect ld version is different addresses for
1214 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules.
1217 The $ipv6_prefer variable in rc.conf(5) has been split into
1218 $ip6addrctl_policy and $ipv6_activate_all_interfaces.
1220 The $ip6addrctl_policy is a variable to choose a pre-defined
1221 address selection policy set by ip6addrctl(8). A value
1222 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The
1225 The $ipv6_activate_all_interfaces specifies whether IFDISABLED
1226 flag (see an entry of 20090926) is set on an interface with no
1227 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for
1228 security reason. If you want IPv6 link-local address on all
1229 interfaces by default, set this to "YES".
1231 The old ipv6_prefer="YES" is equivalent to
1232 ipv6_activate_all_interfaces="YES" and
1233 ip6addrctl_policy="ipv6_prefer".
1236 DTrace has grown support for userland tracing. Due to this, DTrace is
1237 now i386 and amd64 only.
1238 dtruss(1) is now installed by default on those systems and a new
1239 kernel module is needed for userland tracing: fasttrap.
1240 No changes to your kernel config file are necessary to enable
1241 userland tracing, but you might consider adding 'STRIP=' and
1242 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want
1243 to have informative userland stack traces in DTrace (ustack).
1246 The acpi_aiboost(4) driver has been removed in favor of the new
1247 aibs(4) driver. You should update your kernel configuration file.
1250 BSD grep has been imported to the base system and it is built by
1251 default. It is completely BSD licensed, highly GNU-compatible, uses
1252 less memory than its GNU counterpart and has a small codebase.
1253 However, it is slower than its GNU counterpart, which is mostly
1254 noticeable for larger searches, for smaller ones it is measurable
1255 but not significant. The reason is complex, the most important factor
1256 is that we lack a modern and efficient regex library and GNU
1257 overcomes this by optimizing the searches internally. Future work
1258 on improving the regex performance is planned, for the meantime,
1259 users that need better performance, can build GNU grep instead by
1260 setting the WITH_GNU_GREP knob.
1263 Due to the import of powerpc64 support, all existing powerpc kernel
1264 configuration files must be updated with a machine directive like this:
1265 machine powerpc powerpc
1267 In addition, an updated config(8) is required to build powerpc kernels
1271 A new version of ZFS (version 15) has been merged to -HEAD.
1272 This version uses a python library for the following subcommands:
1273 zfs allow, zfs unallow, zfs groupspace, zfs userspace.
1274 For full functionality of these commands the following port must
1275 be installed: sysutils/py-zfs
1278 'vm_page's are now hashed by physical address to an array of mutexes.
1279 Currently this is only used to serialize access to hold_count. Over
1280 time the page queue mutex will be peeled away. This changes the size
1281 of pmap on every architecture. And requires all callers of vm_page_hold
1282 and vm_page_unhold to be updated.
1285 WITH_CTF can now be specified in src.conf (not recommended, there
1286 are some problems with static executables), make.conf (would also
1287 affect ports which do not use GNU make and do not override the
1288 compile targets) or in the kernel config (via "makeoptions
1290 When WITH_CTF was specified there before this was silently ignored,
1291 so make sure that WITH_CTF is not used in places which could lead
1292 to unwanted behavior.
1295 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32
1296 to allow 32-bit compatibility on non-x86 platforms. All kernel
1297 configurations on amd64 and ia64 platforms using these options must
1298 be modified accordingly.
1301 The utmp user accounting database has been replaced with utmpx,
1302 the user accounting interface standardized by POSIX.
1303 Unfortunately the semantics of utmp and utmpx don't match,
1304 making it practically impossible to support both interfaces.
1305 The user accounting database is used by tools like finger(1),
1306 last(1), talk(1), w(1) and ac(8).
1308 All applications in the base system use utmpx. This means only
1309 local binaries (e.g. from the ports tree) may still use these
1310 utmp database files. These applications must be rebuilt to make
1313 After the system has been upgraded, it is safe to remove the old
1314 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*),
1315 assuming their contents is of no importance anymore. Old wtmp
1316 databases can only be used by last(1) and ac(8) after they have
1317 been converted to the new format using wtmpcvt(1).
1320 Introduce the kernel thread "deadlock resolver" (which can be enabled
1321 via the DEADLKRES option, see NOTES for more details) and the
1322 sleepq_type() function for sleepqueues.
1325 The rc.firewall and rc.firewall6 were unified, and
1326 rc.firewall6 and rc.d/ip6fw were removed.
1327 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc
1328 variables are obsoleted. Instead, the following new rc
1329 variables are added to rc.d/ipfw:
1331 firewall_client_net_ipv6, firewall_simple_iif_ipv6,
1332 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6,
1333 firewall_simple_onet_ipv6, firewall_trusted_ipv6
1335 The meanings correspond to the relevant IPv4 variables.
1341 The default terminal emulation for syscons(4) has been changed
1342 from cons25 to xterm on all platforms except pc98. This means
1343 that the /etc/ttys file needs to be updated to ensure correct
1344 operation of applications on the console.
1346 The terminal emulation style can be toggled per window by using
1347 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration
1348 options can be used to change the compile-time default back to
1351 To prevent graphical artifacts, make sure the TERM environment
1352 variable is set to match the terminal emulation that is being
1353 performed by syscons(4).
1356 The layout of the structure ieee80211req_scan_result has changed.
1357 Applications that require wireless scan results (e.g. ifconfig(8))
1358 from net80211 need to be recompiled.
1360 Applications such as wpa_supplicant(8) may require a full world
1361 build without using NO_CLEAN in order to get synchronized with the
1365 The iwn(4) driver has been updated to support the 5000 and 5150 series.
1366 There's one kernel module for each firmware. Adding "device iwnfw"
1367 to the kernel configuration file means including all three firmware
1368 images inside the kernel. If you want to include just the one for
1369 your wireless card, use the devices iwn4965fw, iwn5000fw or
1373 The rc.d/network_ipv6, IPv6 configuration script has been integrated
1374 into rc.d/netif. The changes are the following:
1376 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF
1377 for IPv4. For aliases, $ifconfig_IF_aliasN should be used.
1378 Note that both variables need the "inet6" keyword at the head.
1380 Do not set $ipv6_network_interfaces manually if you do not
1381 understand what you are doing. It is not needed in most cases.
1383 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but
1386 2. $ipv6_enable is obsolete. Use $ipv6_prefer and
1387 "inet6 accept_rtadv" keyword in ifconfig(8) instead.
1389 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and
1390 all configured interfaces have "inet6 accept_rtadv" in the
1391 $ifconfig_IF_ipv6. These are for backward compatibility.
1393 3. A new variable $ipv6_prefer has been added. If NO, IPv6
1394 functionality of interfaces with no corresponding
1395 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag,
1396 and the default address selection policy of ip6addrctl(8)
1397 is the IPv4-preferred one (see rc.d/ip6addrctl for more details).
1398 Note that if you want to configure IPv6 functionality on the
1399 disabled interfaces after boot, first you need to clear the flag by
1400 using ifconfig(8) like:
1402 ifconfig em0 inet6 -ifdisabled
1404 If YES, the default address selection policy is set as
1407 The default value of $ipv6_prefer is NO.
1409 4. If your system need to receive Router Advertisement messages,
1410 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8)
1411 scripts automatically invoke rtsol(8) when the interface becomes
1412 UP. The Router Advertisement messages are used for SLAAC
1413 (State-Less Address AutoConfiguration).
1416 802.11s D3.03 support was committed. This is incompatible with the
1417 previous code, which was based on D3.0.
1420 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value
1421 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to
1422 control whether accepting Router Advertisement messages or not.
1423 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and
1424 a sysctl variable net.inet6.ip6.auto_linklocal is its default value.
1425 The ifconfig(8) utility now supports these flags.
1428 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
1429 mount(8) and -a option for df(1) to see them.
1432 The old tunable hw.bus.devctl_disable has been superseded by
1433 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be
1434 replaced by hw.bus.devctl_queue=0. The default for this new tunable
1438 Remove the option STOP_NMI. The default action is now to use NMI only
1439 for KDB via the newly introduced function stop_cpus_hard() and
1440 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64.
1443 The stable/8 branch created in subversion. This corresponds to the
1444 RELENG_8 branch in CVS.
1447 Bump the shared library version numbers for all libraries that do not
1448 use symbol versioning as part of the 8.0-RELEASE cycle. Bump
1449 __FreeBSD_version to 800105.
1452 Due to changes in the implementation of virtual network stack support,
1453 all network-related kernel modules must be recompiled. As this change
1454 breaks the ABI, bump __FreeBSD_version to 800104.
1457 The TOE interface to the TCP syncache has been modified to remove
1458 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack.
1459 The cxgb driver is the only TOE consumer affected by this change, and
1460 needs to be recompiled along with the kernel. As this change breaks
1461 the ABI, bump __FreeBSD_version to 800103.
1464 Padding has been added to struct tcpcb, sackhint and tcpstat in
1465 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
1466 maintaining the ABI. However, this change breaks the ABI, so bump
1467 __FreeBSD_version to 800102. User space tools that rely on the size of
1468 any of these structs (e.g. sockstat) need to be recompiled.
1471 The NFS_LEGACYRPC option has been removed along with the old kernel
1472 RPC implementation that this option selected. Kernel configurations
1473 may need to be adjusted.
1476 The network interface device nodes at /dev/net/<interface> have been
1477 removed. All ioctl operations can be performed the normal way using
1478 routing sockets. The kqueue functionality can generally be replaced
1479 with routing sockets.
1482 The documentation from the FreeBSD Documentation Project (Handbook,
1483 FAQ, etc.) is now installed via packages by sysinstall(8) and under
1484 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc.
1487 The ABI of various structures related to the SYSV IPC API have been
1488 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel
1489 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to
1493 Layout of struct vnet has changed as routing related variables were
1494 moved to their own Vimage module. Modules need to be recompiled. Bump
1495 __FreeBSD_version to 800099.
1498 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024
1499 respectively. As long as no more than 16 groups per process are used,
1500 no changes should be visible. When more than 16 groups are used, old
1501 binaries may fail if they call getgroups() or getgrouplist() with
1502 statically sized storage. Recompiling will work around this, but
1503 applications should be modified to use dynamically allocated storage
1504 for group arrays as POSIX.1-2008 does not cap an implementation's
1505 number of supported groups at NGROUPS_MAX+1 as previous versions did.
1507 NFS and portalfs mounts may also be affected as the list of groups is
1508 truncated to 16. Users of NFS who use more than 16 groups, should
1509 take care that negative group permissions are not used on the exported
1510 file systems as they will not be reliable unless a GSSAPI based
1511 authentication method is used.
1514 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This
1515 option compiles in the support for adaptive spinning for lockmgrs
1516 which want to enable it. The lockinit() function now accepts the flag
1517 LK_ADAPTIVE in order to make the lock object subject to adaptive
1518 spinning when both held in write and read mode.
1521 The layout of the structure returned by IEEE80211_IOC_STA_INFO has
1522 changed. User applications that use this ioctl need to be rebuilt.
1525 The layout of struct thread has changed. Kernel and modules need to
1529 The layout of structs ifnet, domain, protosw and vnet_net has changed.
1530 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097.
1533 window(1) has been removed from the base system. It can now be
1534 installed from ports. The port is called misc/window.
1537 The way we are storing and accessing `routing table' entries has
1538 changed. Programs reading the FIB, like netstat, need to be
1542 A new netisr implementation has been added for FreeBSD 8. Network
1543 file system modules, such as igmp, ipdivert, and others, should be
1545 Bump __FreeBSD_version to 800096.
1548 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no
1552 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
1553 Bump __FreeBSD_version to 800094.
1556 Add mnt_xflag field to 'struct mount'. File system modules need to be
1558 Bump __FreeBSD_version to 800093.
1561 The compiling option ADAPTIVE_SX has been retired while it has been
1562 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
1563 The KPI for sx_init_flags() changes as accepting flags:
1564 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has
1565 been introduced in order to handle the reversed logic.
1566 Bump __FreeBSD_version to 800092.
1569 Add support for hierarchical jails. Remove global securelevel.
1570 Bump __FreeBSD_version to 800091.
1573 The layout of struct vnet_net has changed, therefore modules
1575 Bump __FreeBSD_version to 800090.
1578 The newly imported zic(8) produces a new format in the output. Please
1579 run tzsetup(8) to install the newly created data to /etc/localtime.
1582 The sysctl tree for the usb stack has renamed from hw.usb2.* to
1583 hw.usb.* and is now consistent again with previous releases.
1586 802.11 monitor mode support was revised and driver api's were changed.
1587 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead
1588 of DLT_IEEE802_11. No user-visible data structures were changed but
1589 applications that use DLT_IEEE802_11 may require changes.
1590 Bump __FreeBSD_version to 800088.
1593 The layout of the following structs has changed: sysctl_oid,
1594 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
1595 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
1596 panics may be experienced. World rebuild is required for
1597 correctly checking networking state from userland.
1598 Bump __FreeBSD_version to 800085.
1601 MLDv2 and Source-Specific Multicast (SSM) have been merged
1602 to the IPv6 stack. VIMAGE hooks are in but not yet used.
1603 The implementation of SSM within FreeBSD's IPv6 stack closely
1604 follows the IPv4 implementation.
1606 For kernel developers:
1608 * The most important changes are that the ip6_output() and
1609 ip6_input() paths no longer take the IN6_MULTI_LOCK,
1610 and this lock has been downgraded to a non-recursive mutex.
1612 * As with the changes to the IPv4 stack to support SSM, filtering
1613 of inbound multicast traffic must now be performed by transport
1614 protocols within the IPv6 stack. This does not apply to TCP and
1615 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
1617 * The KPIs used by IPv6 multicast are similar to those used by
1618 the IPv4 stack, with the following differences:
1619 * im6o_mc_filter() is analogous to imo_multicast_filter().
1620 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
1621 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
1622 * IN6_LOOKUP_MULTI() has been deprecated and removed.
1623 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
1624 for MLDv1 have an additional 'timer' argument which is used to
1625 jitter the initial membership report for the solicited-node
1626 multicast membership on-link.
1627 * This is not strictly needed for MLDv2, which already jitters
1628 its report transmissions. However, the 'timer' argument is
1629 preserved in case MLDv1 is active on the interface.
1631 * The KAME linked-list based IPv6 membership implementation has
1632 been refactored to use a vector similar to that used by the IPv4
1634 Code which maintains a list of its own multicast memberships
1635 internally, e.g. carp, has been updated to reflect the new
1638 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
1639 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
1640 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
1641 implementation constraint which needs to be addressed in HEAD.
1643 For application developers:
1645 * The changes are broadly similar to those made for the IPv4
1648 * The use of IPv4 and IPv6 multicast socket options on the same
1649 socket, using mapped addresses, HAS NOT been tested or supported.
1651 * There are a number of issues with the implementation of various
1652 IPv6 multicast APIs which need to be resolved in the API surface
1653 before the implementation is fully compatible with KAME userland
1654 use, and these are mostly to do with interface index treatment.
1656 * The literature available discusses the use of either the delta / ASM
1657 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
1658 using setsourcefilter(3)/getsourcefilter(3). For more information
1659 please refer to RFC 3768, 'Socket Interface Extensions for
1660 Multicast Source Filters'.
1662 * Applications which use the published RFC 3678 APIs should be fine.
1664 For systems administrators:
1666 * The mtest(8) utility has been refactored to support IPv6, in
1667 addition to IPv4. Interface addresses are no longer accepted
1668 as arguments, their names must be used instead. The utility
1669 will map the interface name to its first IPv4 address as
1670 returned by getifaddrs(3).
1672 * The ifmcstat(8) utility has also been updated to print the MLDv2
1673 endpoint state and source filter lists via sysctl(3).
1675 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
1676 loopback of IPv6 multicast datagrams by default; it defaults to 1
1677 to preserve the existing behaviour. Disabling multicast loopback is
1678 recommended for optimal system performance.
1680 * The IPv6 MROUTING code has been changed to examine this sysctl
1681 instead of attempting to perform a group lookup before looping
1682 back forwarded datagrams.
1684 Bump __FreeBSD_version to 800084.
1687 Implement low-level Bluetooth HCI API.
1688 Bump __FreeBSD_version to 800083.
1691 The layout of struct malloc_type, used by modules to register new
1692 memory allocation types, has changed. Most modules will need to
1693 be rebuilt or panics may be experienced.
1694 Bump __FreeBSD_version to 800081.
1697 Anticipate overflowing inp_flags - add inp_flags2.
1698 This changes most offsets in inpcb, so checking v4 connection
1699 state will require a world rebuild.
1700 Bump __FreeBSD_version to 800080.
1703 Add an llentry to struct route and struct route_in6. Modules
1704 embedding a struct route will need to be recompiled.
1705 Bump __FreeBSD_version to 800079.
1708 The size of rt_metrics_lite and by extension rtentry has changed.
1709 Networking administration apps will need to be recompiled.
1710 The route command now supports show as an alias for get, weighting
1711 of routes, sticky and nostick flags to alter the behavior of stateful
1713 Bump __FreeBSD_version to 800078.
1716 Do not use Giant for kbdmux(4) locking. This is wrong and
1717 apparently causing more problems than it solves. This will
1718 re-open the issue where interrupt handlers may race with
1719 kbdmux(4) in polling mode. Typical symptoms include (but
1720 not limited to) duplicated and/or missing characters when
1721 low level console functions (such as gets) are used while
1722 interrupts are enabled (for example geli password prompt,
1723 mountroot prompt etc.). Disabling kbdmux(4) may help.
1726 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
1727 kernel modules referencing any of the above need to be recompiled.
1728 Bump __FreeBSD_version to 800075.
1731 GEOM_PART has become the default partition slicer for storage devices,
1732 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
1733 introduces some changes:
1735 MSDOS/EBR: the devices created from MSDOS extended partition entries
1736 (EBR) can be named differently than with GEOM_MBR and are now symlinks
1737 to devices with offset-based names. fstabs may need to be modified.
1739 BSD: the "geometry does not match label" warning is harmless in most
1740 cases but it points to problems in file system misalignment with
1741 disk geometry. The "c" partition is now implicit, covers the whole
1742 top-level drive and cannot be (mis)used by users.
1744 General: Kernel dumps are now not allowed to be written to devices
1745 whose partition types indicate they are meant to be used for file
1746 systems (or, in case of MSDOS partitions, as something else than
1749 Most of these changes date approximately from 200812.
1752 The uscanner(4) driver has been removed from the kernel. This follows
1753 Linux removing theirs in 2.6 and making libusb the default interface
1754 (supported by sane).
1757 The multicast forwarding code has been cleaned up. netstat(1)
1758 only relies on KVM now for printing bandwidth upcall meters.
1759 The IPv4 and IPv6 modules are split into ip_mroute_mod and
1760 ip6_mroute_mod respectively. The config(5) options for statically
1761 compiling this code remain the same, i.e. 'options MROUTING'.
1764 Support for the IFF_NEEDSGIANT network interface flag has been
1765 removed, which means that non-MPSAFE network device drivers are no
1766 longer supported. In particular, if_ar, if_sr, and network device
1767 drivers from the old (legacy) USB stack can no longer be built or
1771 POSIX.1 Native Language Support (NLS) has been enabled in libc and
1772 a bunch of new language catalog files have also been added.
1773 This means that some common libc messages are now localized and
1774 they depend on the LC_MESSAGES environmental variable.
1777 The k8temp(4) driver has been renamed to amdtemp(4) since
1778 support for Family 10 and Family 11 CPU families was added.
1781 IGMPv3 and Source-Specific Multicast (SSM) have been merged
1782 to the IPv4 stack. VIMAGE hooks are in but not yet used.
1784 For kernel developers, the most important changes are that the
1785 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
1786 and this lock has been downgraded to a non-recursive mutex.
1788 Transport protocols (UDP, Raw IP) are now responsible for filtering
1789 inbound multicast traffic according to group membership and source
1790 filters. The imo_multicast_filter() KPI exists for this purpose.
1791 Transports which do not use multicast (SCTP, TCP) already reject
1792 multicast by default. Forwarding and receive performance may improve
1793 as a mutex acquisition is no longer needed in the ip_input()
1794 low-level input path. in_addmulti() and in_delmulti() are shimmed
1795 to new KPIs which exist to support SSM in-kernel.
1797 For application developers, it is recommended that loopback of
1798 multicast datagrams be disabled for best performance, as this
1799 will still cause the lock to be taken for each looped-back
1800 datagram transmission. The net.inet.ip.mcast.loop sysctl may
1801 be tuned to 0 to disable loopback by default; it defaults to 1
1802 to preserve the existing behaviour.
1804 For systems administrators, to obtain best performance with
1805 multicast reception and multiple groups, it is always recommended
1806 that a card with a suitably precise hash filter is used. Hash
1807 collisions will still result in the lock being taken within the
1808 transport protocol input path to check group membership.
1810 If deploying FreeBSD in an environment with IGMP snooping switches,
1811 it is recommended that the net.inet.igmp.sendlocal sysctl remain
1812 enabled; this forces 224.0.0.0/24 group membership to be announced
1815 The size of 'struct igmpstat' has changed; netstat needs to be
1816 recompiled to reflect this.
1817 Bump __FreeBSD_version to 800070.
1820 libusb20.so.1 is now installed as libusb.so.1 and the ports system
1821 updated to use it. This requires a buildworld/installworld in order to
1822 update the library and dependencies (usbconfig, etc). Its advisable to
1823 rebuild all ports which uses libusb. More specific directions are given
1824 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
1825 libusb are no longer required and can be removed.
1828 A workaround is committed to allow the creation of System V shared
1829 memory segment of size > 2 GB on the 64-bit architectures.
1830 Due to a limitation of the existing ABI, the shm_segsz member
1831 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
1832 wrong for large segments. Note that limits must be explicitly
1833 raised to allow such segments to be created.
1836 The layout of struct ifnet has changed, requiring a rebuild of all
1837 network device driver modules.
1840 The /dev handling for the new USB stack has changed, a
1841 buildworld/installworld is required for libusb20.
1844 The new USB2 stack has now been permanently moved in and all kernel and
1845 module names reverted to their previous values (eg, usb, ehci, ohci,
1846 ums, ...). The old usb stack can be compiled in by prefixing the name
1847 with the letter 'o', the old usb modules have been removed.
1848 Updating entry 20090216 for xorg and 20090215 for libmap may still
1852 The rc.conf(5) option if_up_delay has been renamed to
1853 defaultroute_delay to better reflect its purpose. If you have
1854 customized this setting in /etc/rc.conf you need to update it to
1858 xorg 7.4 wants to configure its input devices via hald which does not
1859 yet work with USB2. If the keyboard/mouse does not work in xorg then
1861 Option "AllowEmptyInput" "off"
1862 to your ServerLayout section. This will cause X to use the configured
1863 kbd and mouse sections from your xorg.conf.
1866 The GENERIC kernels for all architectures now default to the new USB2
1867 stack. No kernel config options or code have been removed so if a
1868 problem arises please report it and optionally revert to the old USB
1869 stack. If you are loading USB kernel modules or have a custom kernel
1870 that includes GENERIC then ensure that usb names are also changed over,
1871 eg uftdi -> usb2_serial_ftdi.
1873 Older programs linked against the ports libusb 0.1 need to be
1874 redirected to the new stack's libusb20. /etc/libmap.conf can
1876 # Map old usb library to new one for usb2 stack
1877 libusb-0.1.so.8 libusb20.so.1
1880 All USB ethernet devices now attach as interfaces under the name ueN
1881 (eg. ue0). This is to provide a predictable name as vendors often
1882 change usb chipsets in a product without notice.
1885 The ichsmb(4) driver has been changed to require SMBus slave
1886 addresses be left-justified (xxxxxxx0b) rather than right-justified.
1887 All of the other SMBus controller drivers require left-justified
1888 slave addresses, so this change makes all the drivers provide the
1892 INET6 statistics (struct ip6stat) was updated.
1893 netstat(1) needs to be recompiled.
1896 NTFS has been removed from GENERIC kernel on amd64 to match
1897 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
1898 will load ntfs.ko module automatically when NTFS support is
1899 actually needed, unless ntfs.ko is not installed or security
1900 level prohibits loading kernel modules. If either is the case,
1901 "options NTFS" has to be added into kernel config.
1904 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
1905 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
1906 800061. User space tools that rely on the size of struct tcpcb in
1907 tcp_var.h (e.g. sockstat) need to be recompiled.
1910 ng_tty(4) module updated to match the new TTY subsystem.
1911 Due to API change, user-level applications must be updated.
1912 New API support added to mpd5 CVS and expected to be present
1913 in next mpd5.3 release.
1916 With __FreeBSD_version 800060 the makefs tool is part of
1917 the base system (it was a port).
1920 The afdata and ifnet locks have been changed from mutexes to
1921 rwlocks, network modules will need to be re-compiled.
1924 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
1925 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
1926 The new code reduced struct rtentry{} by 16 bytes on 32-bit
1927 architecture and 40 bytes on 64-bit architecture. The userland
1928 applications "arp" and "ndp" have been updated accordingly.
1929 The output from "netstat -r" shows only routing entries and
1930 none of the L2 information.
1933 __FreeBSD_version 800057 marks the switchover from the
1934 binary ath hal to source code. Users must add the line:
1936 options AH_SUPPORT_AR5416
1938 to their kernel config files when specifying:
1942 The ath_hal module no longer exists; the code is now compiled
1943 together with the driver in the ath module. It is now
1944 possible to tailor chip support (i.e. reduce the set of chips
1945 and thereby the code size); consult ath_hal(4) for details.
1948 __FreeBSD_version 800054 adds memory barriers to
1949 <machine/atomic.h>, new interfaces to ifnet to facilitate
1950 multiple hardware transmit queues for cards that support
1951 them, and a lock-less ring-buffer implementation to
1952 enable drivers to more efficiently manage queueing of
1956 A new version of ZFS (version 13) has been merged to -HEAD.
1957 This version has zpool attribute "listsnapshots" off by
1958 default, which means "zfs list" does not show snapshots,
1959 and is the same as Solaris behavior.
1962 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
1965 The uhci, ohci, ehci and slhci USB Host controller drivers have
1966 been put into separate modules. If you load the usb module
1967 separately through loader.conf you will need to load the
1968 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
1969 controller add the following to loader.conf:
1975 The ABI used by the PMC toolset has changed. Please keep
1976 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
1980 atapci kernel module now includes only generic PCI ATA
1981 driver. AHCI driver moved to ataahci kernel module.
1982 All vendor-specific code moved into separate kernel modules:
1983 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
1984 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
1985 atamarvell, atamicron, atanational, atanetcell, atanvidia,
1986 atapromise, ataserverworks, atasiliconimage, atasis, atavia
1989 The TTY subsystem of the kernel has been replaced by a new
1990 implementation, which provides better scalability and an
1991 improved driver model. Most common drivers have been migrated to
1992 the new TTY subsystem, while others have not. The following
1993 drivers have not yet been ported to the new TTY layer:
1996 cy, digi, rc, rp, sio
2002 ng_h4, ng_tty, ppp, sl, snp
2004 Adding these drivers to your kernel configuration file shall
2005 cause compilation to fail.
2008 ntpd has been upgraded to 4.2.4p5.
2011 OpenSSH has been upgraded to 5.1p1.
2013 For many years, FreeBSD's version of OpenSSH preferred DSA
2014 over RSA for host and user authentication keys. With this
2015 upgrade, we've switched to the vendor's default of RSA over
2016 DSA. This may cause upgraded clients to warn about unknown
2017 host keys even for previously known hosts. Users should
2018 follow the usual procedure for verifying host keys before
2019 accepting the RSA key.
2021 This can be circumvented by setting the "HostKeyAlgorithms"
2022 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
2025 Please note that the sequence of keys offered for
2026 authentication has been changed as well. You may want to
2027 specify IdentityFile in a different order to revert this
2031 The sio(4) driver has been removed from the i386 and amd64
2032 kernel configuration files. This means uart(4) is now the
2033 default serial port driver on those platforms as well.
2035 To prevent collisions with the sio(4) driver, the uart(4) driver
2036 uses different names for its device nodes. This means the
2037 onboard serial port will now most likely be called "ttyu0"
2038 instead of "ttyd0". You may need to reconfigure applications to
2039 use the new device names.
2041 When using the serial port as a boot console, be sure to update
2042 /boot/device.hints and /etc/ttys before booting the new kernel.
2043 If you forget to do so, you can still manually specify the hints
2044 at the loader prompt:
2046 set hint.uart.0.at="isa"
2047 set hint.uart.0.port="0x3F8"
2048 set hint.uart.0.flags="0x10"
2049 set hint.uart.0.irq="4"
2053 The gpt(8) utility has been removed. Use gpart(8) to partition
2057 The version that Linuxulator emulates was changed from 2.4.2
2058 to 2.6.16. If you experience any problems with Linux binaries
2059 please try to set sysctl compat.linux.osrelease to 2.4.2 and
2060 if it fixes the problem contact emulation mailing list.
2063 ISDN4BSD (I4B) was removed from the src tree. You may need to
2064 update a your kernel configuration and remove relevant entries.
2067 I have checked in code to support multiple routing tables.
2068 See the man pages setfib(1) and setfib(2).
2069 This is a hopefully backwards compatible version,
2070 but to make use of it you need to compile your kernel
2071 with options ROUTETABLES=2 (or more up to 16).
2074 The 802.11 wireless support was redone to enable multi-bss
2075 operation on devices that are capable. The underlying device
2076 is no longer used directly but instead wlanX devices are
2077 cloned with ifconfig. This requires changes to rc.conf files.
2078 For example, change:
2079 ifconfig_ath0="WPA DHCP"
2082 ifconfig_wlan0="WPA DHCP"
2083 see rc.conf(5) for more details. In addition, mergemaster of
2084 /etc/rc.d is highly recommended. Simultaneous update of userland
2085 and kernel wouldn't hurt either.
2087 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
2088 modules were merged into the base wlan module. All references
2089 to these modules (e.g. in kernel config files) must be removed.
2092 psm(4) has gained write(2) support in native operation level.
2093 Arbitrary commands can be written to /dev/psm%d and status can
2094 be read back from it. Therefore, an application is responsible
2095 for status validation and error recovery. It is a no-op in
2096 other operation levels.
2099 Support for KSE threading has been removed from the kernel. To
2100 run legacy applications linked against KSE libmap.conf may
2101 be used. The following libmap.conf may be used to ensure
2102 compatibility with any prior release:
2104 libpthread.so.1 libthr.so.1
2105 libpthread.so.2 libthr.so.2
2106 libkse.so.3 libthr.so.3
2109 The layout of struct vmspace has changed. This affects libkvm
2110 and any executables that link against libkvm and use the
2111 kvm_getprocs() function. In particular, but not exclusively,
2112 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
2113 The effects are minimal, but it's advisable to upgrade world
2117 The latest em driver no longer has support in it for the
2118 82575 adapter, this is now moved to the igb driver. The
2119 split was done to make new features that are incompatible
2120 with older hardware easier to do.
2123 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
2124 likewise the kernel option is now GEOM_LINUX_LVM.
2127 The default NFS mount mode has changed from UDP to TCP for
2128 increased reliability. If you rely on (insecurely) NFS
2129 mounting across a firewall you may need to update your
2133 Belatedly note the addition of m_collapse for compacting
2137 The fts(3) structures have been changed to use adequate
2138 integer types for their members and so to be able to cope
2139 with huge file trees. The old fts(3) ABI is preserved
2140 through symbol versioning in libc, so third-party binaries
2141 using fts(3) should still work, although they will not take
2142 advantage of the extended types. At the same time, some
2143 third-party software might fail to build after this change
2144 due to unportable assumptions made in its source code about
2145 fts(3) structure members. Such software should be fixed
2146 by its vendor or, in the worst case, in the ports tree.
2147 FreeBSD_version 800015 marks this change for the unlikely
2148 case that a portable fix is impossible.
2151 To upgrade to -current after this date, you must be running
2152 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
2153 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
2156 The ADAPTIVE_GIANT kernel option has been retired because its
2157 functionality is the default now.
2160 The AT keyboard emulation of sunkbd(4) has been turned on
2161 by default. In order to make the special symbols of the Sun
2162 keyboards driven by sunkbd(4) work under X these now have
2163 to be configured the same way as Sun USB keyboards driven
2164 by ukbd(4) (which also does AT keyboard emulation), f.e.:
2166 Option "XkbLayout" "us"
2167 Option "XkbRules" "xorg"
2168 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
2171 It has been decided that it is desirable to provide ABI
2172 backwards compatibility to the FreeBSD 4/5/6 versions of the
2173 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
2174 broken with the introduction of PCI domain support (see the
2175 20070930 entry). Unfortunately, this required the ABI of
2176 PCIOCGETCONF to be broken again in order to be able to
2177 provide backwards compatibility to the old version of that
2178 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
2179 again. As for prominent ports this affects neither pciutils
2180 nor xorg-server this time, the hal port needs to be rebuilt
2184 The misnamed kthread_create() and friends have been renamed
2185 to kproc_create() etc. Many of the callers already
2186 used kproc_start()..
2187 I will return kthread_create() and friends in a while
2188 with implementations that actually create threads, not procs.
2189 Renaming corresponds with version 800002.
2198 Avoid using make -j when upgrading. While generally safe, there are
2199 sometimes problems using -j to upgrade. If your upgrade fails with
2200 -j, please try again without -j. From time to time in the past there
2201 have been problems using -j with buildworld and/or installworld. This
2202 is especially true when upgrading between "distant" versions (eg one
2203 that cross a major release boundary or several minor releases, or when
2204 several months have passed on the -current branch).
2206 Sometimes, obscure build problems are the result of environment
2207 poisoning. This can happen because the make utility reads its
2208 environment when searching for values for global variables. To run
2209 your build attempts in an "environmental clean room", prefix all make
2210 commands with 'env -i '. See the env(1) manual page for more details.
2212 When upgrading from one major version to another it is generally best
2213 to upgrade to the latest code in the currently installed branch first,
2214 then do an upgrade to the new branch. This is the best-tested upgrade
2215 path, and has the highest probability of being successful. Please try
2216 this approach before reporting problems with a major version upgrade.
2218 When upgrading a live system, having a root shell around before
2219 installing anything can help undo problems. Not having a root shell
2220 around can lead to problems if pam has changed too much from your
2221 starting point to allow continued authentication after the upgrade.
2225 When upgrading the boot ZFS pool to a new version, always follow
2228 1.) recompile and reinstall the ZFS boot loader and boot block
2229 (this is part of "make buildworld" and "make installworld")
2231 2.) update the ZFS boot block on your boot drive
2233 The following example updates the ZFS boot block on the first
2234 partition (freebsd-boot) of a GPT partitioned drive ad0:
2235 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0"
2237 Non-boot pools do not need these updates.
2241 If you are updating from a prior version of FreeBSD (even one just
2242 a few days old), you should follow this procedure. It is the most
2243 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
2245 make kernel-toolchain
2246 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
2247 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
2249 To test a kernel once
2250 ---------------------
2251 If you just want to boot a kernel once (because you are not sure
2252 if it works, or if you want to boot a known bad kernel to provide
2253 debugging information) run
2254 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
2255 nextboot -k testkernel
2257 To just build a kernel when you know that it won't mess you up
2258 --------------------------------------------------------------
2259 This assumes you are already running a CURRENT system. Replace
2260 ${arch} with the architecture of your machine (e.g. "i386",
2261 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc).
2263 cd src/sys/${arch}/conf
2264 config KERNEL_NAME_HERE
2265 cd ../compile/KERNEL_NAME_HERE
2270 If this fails, go to the "To build a kernel" section.
2272 To rebuild everything and install it on the current system.
2273 -----------------------------------------------------------
2274 # Note: sometimes if you are running current you gotta do more than
2275 # is listed here if you are upgrading from a really old current.
2277 <make sure you have good level 0 dumps>
2279 make kernel KERNCONF=YOUR_KERNEL_HERE
2281 <reboot in single user> [3]
2288 To cross-install current onto a separate partition
2289 --------------------------------------------------
2290 # In this approach we use a separate partition to hold
2291 # current's root, 'usr', and 'var' directories. A partition
2292 # holding "/", "/usr" and "/var" should be about 2GB in
2295 <make sure you have good level 0 dumps>
2298 make buildkernel KERNCONF=YOUR_KERNEL_HERE
2299 <maybe newfs current's root partition>
2300 <mount current's root partition on directory ${CURRENT_ROOT}>
2301 make installworld DESTDIR=${CURRENT_ROOT}
2302 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
2303 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
2304 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
2305 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
2306 <reboot into current>
2307 <do a "native" rebuild/install as described in the previous section>
2308 <maybe install compatibility libraries from ports/misc/compat*>
2312 To upgrade in-place from stable to current
2313 ----------------------------------------------
2314 <make sure you have good level 0 dumps>
2316 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
2318 <reboot in single user> [3]
2325 Make sure that you've read the UPDATING file to understand the
2326 tweaks to various things you need. At this point in the life
2327 cycle of current, things change often and you are on your own
2328 to cope. The defaults can also change, so please read ALL of
2329 the UPDATING entries.
2331 Also, if you are tracking -current, you must be subscribed to
2332 freebsd-current@freebsd.org. Make sure that before you update
2333 your sources that you have read and understood all the recent
2334 messages there. If in doubt, please track -stable which has
2335 much fewer pitfalls.
2337 [1] If you have third party modules, such as vmware, you
2338 should disable them at this point so they don't crash your
2341 [3] From the bootblocks, boot -s, and then do
2346 adjkerntz -i # if CMOS is wall time
2347 Also, when doing a major release upgrade, it is required that
2348 you boot into single user mode to do the installworld.
2350 [4] Note: This step is non-optional. Failure to do this step
2351 can result in a significant reduction in the functionality of the
2352 system. Attempting to do it by hand is not recommended and those
2353 that pursue this avenue should read this file carefully, as well
2354 as the archives of freebsd-current and freebsd-hackers mailing lists
2355 for potential gotchas. The -U option is also useful to consider.
2356 See mergemaster(8) for more information.
2358 [5] Usually this step is a noop. However, from time to time
2359 you may need to do this if you get unknown user in the following
2360 step. It never hurts to do it all the time. You may need to
2361 install a new mergemaster (cd src/usr.sbin/mergemaster && make
2362 install) after the buildworld before this step if you last updated
2363 from current before 20130425 or from -stable before 20130430.
2365 [6] This only deletes old files and directories. Old libraries
2366 can be deleted by "make delete-old-libs", but you have to make
2367 sure that no program is using those libraries anymore.
2369 [8] In order to have a kernel that can run the 4.x binaries needed to
2370 do an installworld, you must include the COMPAT_FREEBSD4 option in
2371 your kernel. Failure to do so may leave you with a system that is
2372 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is
2373 required to run the 5.x binaries on more recent kernels. And so on
2374 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7.
2376 Make sure that you merge any new devices from GENERIC since the
2377 last time you updated your kernel config file.
2379 [9] When checking out sources, you must include the -P flag to have
2380 cvs prune empty directories.
2382 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
2383 "?=" instead of the "=" assignment operator, so that buildworld can
2384 override the CPUTYPE if it needs to.
2386 MAKEOBJDIRPREFIX must be defined in an environment variable, and
2387 not on the command line, or in /etc/make.conf. buildworld will
2388 warn if it is improperly defined.
2391 This file contains a list, in reverse chronological order, of major
2392 breakages in tracking -current. It is not guaranteed to be a complete
2393 list of such breakages, and only contains entries since October 10, 2007.
2394 If you need to see UPDATING entries from before that date, you will need
2395 to fetch an UPDATING file from an older FreeBSD release.
2397 Copyright information:
2399 Copyright 1998-2009 M. Warner Losh. All Rights Reserved.
2401 Redistribution, publication, translation and use, with or without
2402 modification, in full or in part, in any form or format of this
2403 document are permitted without further permission from the author.
2405 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
2406 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
2407 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
2408 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
2409 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
2410 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
2411 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2412 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
2413 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
2414 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
2415 POSSIBILITY OF SUCH DAMAGE.
2417 Contact Warner Losh if you have any questions about your use of