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 20161025 p49 FreeBSD-SA-16:15.sysarch [revised]
16 Fix incorrect argument validation in sysarch(2). [SA-16:15]
18 20161010 p48 FreeBSD-SA-16:28.bind
19 FreeBSD-SA-16:29.bspatch
20 FreeBSD-SA-16:30.portsnap
22 Fix BIND remote Denial of Service vulnerability. [SA-16:28]
24 Fix bspatch heap overflow vulnerability. [SA-16:29]
26 Fix multiple portsnap vulnerabilities. [SA-16:30]
28 20160926 p47 FreeBSD-SA-16:26.openssl [revised]
30 Fix OpenSSL regression introduced in SA-16:26.
32 20160923 p46 FreeBSD-SA-16:26.openssl
34 Fix multiple OpenSSL vulnerabilitites.
36 20160725 p45 FreeBSD-SA-16:25.bspatch
37 FreeBSD-EN-16:09.freebsd-update
39 Fix bspatch heap overflow vulnerability. [SA-16:25]
41 Fix freebsd-update(8) support of FreeBSD 11.0 release
42 distribution. [EN-16:09]
44 20160604 p44 FreeBSD-SA-16:24.ntp
46 Fix multiple vulnerabilities of ntp.
48 20160531 p43 FreeBSD-SA-16:20.linux
49 FreeBSD-SA-16:21.43bsd
50 FreeBSD-SA-16:22.libarchive
51 FreeBSD-SA-16:23.libarchive
53 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20]
54 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21]
55 Fix directory traversal in cpio(1). [SA-16:22]
56 Fix buffer overflow in libarchive(3). [SA-16:23]
58 20160517 p42 FreeBSD-SA-16:18.atkbd
60 Fix buffer overflow in keyboard driver. [SA-16:18]
62 20160504 p41 FreeBSD-SA-16:17.openssl
65 Fix multiple OpenSSL vulnerabilitites. [SA-16:17]
67 Fix memory leak in ZFS. [EN-16:08]
69 20160429 p40 FreeBSD-SA-16:16.ntp
71 Fix multiple vulnerabilities of ntp.
73 20160316 p39 FreeBSD-SA-16:14.openssh-xauth
74 FreeBSD-SA-16:15.sysarch
76 Fix OpenSSH xauth(1) command injection. [SA-16:14]
77 Fix incorrect argument validation in sysarch(2). [SA-16:15]
79 20160310 p38 FreeBSD-SA-16:13.bind
80 FreeBSD-SA-16:12.openssl [revised]
82 Fix multiple vulnerabilities of BIND. [SA-16:13]
84 Fix a regression with OpenSSL patch. [SA-16:12]
86 20160303 p37 FreeBSD-SA-16:12.openssl
88 Fix multiple vulnerabilities of OpenSSL.
90 20160130 p36 FreeBSD-SA-16:11.openssl
92 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11]
94 20160127 p35 FreeBSD-SA-16:08.bind
96 FreeBSD-SA-16:10.linux
98 Fix BIND remote denial of service vulnerability. [SA-16:08]
100 Fix multiple vulnerabilities of ntp. [SA-16:09]
102 Fix Linux compatibility layer issetugid(2) system call
103 vulnerability. [SA-16:10]
105 20160114 p34 FreeBSD-SA-16:07.openssh
107 Fix OpenSSH client information leak. [SA-16:07]
109 20160114 p33 FreeBSD-EN-16:02.pf
110 FreeBSD-EN-16:03.yplib
111 FreeBSD-SA-16:01.sctp
113 FreeBSD-SA-16:03.linux
114 FreeBSD-SA-16:04.linux
116 FreeBSD-SA-16:06.bsnmpd
118 Fix pf(4) generating bad TCP checksums. [EN-16:02]
119 Fix infinite loop in YP/NIS client library. [EN-16:03]
120 Fix remote denial of service in SCTP. [SA-16:01]
121 Update NTP to 4.2.8p5. [SA-16:02]
122 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03]
123 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04]
124 Fix crash in TCP MD5 signatures. [SA-16:05]
125 Fix insecure default permissions for snmpd.config. [SA-16:06]
127 20151216 p32 FreeBSD-SA-15:27.bind
128 Fix BIND remote denial of service vulnerability. [SA-15:27]
130 20151205 p31 FreeBSD-SA-15:26.openssl
132 Fix OpenSSL X509_ATTRIBUTE memory leak. [SA-15:26]
134 20151104 p30 FreeBSD-SA-15:25.ntp [revised]
135 FreeBSD-EN-15:19.kqueue
138 Fix regression of ntpq(8) utility exiting due to trap 6 in
139 9.3-RELEASE-p29. [SA-15:25]
141 Fix regression in ntpd(8) lacking support for RAWDCF reference
142 clock in 9.3-RELEASE-p29. [SA-15:25]
144 Fix kqueue write events never fired for files greater 2GB. [EN-15:19]
146 Fix applications exiting due to segmentation violation on a correct
147 memory address. [EN-15:20]
149 20151026: p29 FreeBSD-SA-15:25.ntp
151 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4.
153 The configuration file syntax has been changed, thus mergemaster
154 run is recommended. Now the "kod" parameter requires "limited"
155 parameter. If the ntp.conf is not updated, the ntpd will run
156 successfully, but with KoD disabled.
158 20151002: p28 FreeBSD-SA-15:24.rpcbind [revised]
159 Revised patch to address a regression that prevents NIS from working.
161 20150929: p27 FreeBSD-SA-15:24.rpcbind
163 Fix rpcbind(8) remote denial of service. [SA-15:24]
165 20150916: p26 FreeBSD-EN-15:18.pkg
167 Implement pubkey support for pkg(7) bootstrap. [EN-15:18]
169 20150902: p25 FreeBSD-SA-15:23.bind
171 Fix BIND remote denial of service vulnerability. [SA-15:23]
173 20150825: p24 FreeBSD-SA-15:21.amd64
174 FreeBSD-SA-15:22.openssh
177 Fix local privilege escalation in IRET handler. [SA-15:21]
179 Fix OpenSSH multiple vulnerabilities. [SA-15:22]
181 Fix insufficient check of unsupported pkg(7) signature methods.
184 20150818: p23 FreeBSD-SA-15:20.expat
186 Fix multiple integer overflows in expat (libbsdxml) XML parser.
189 20150805: p22 FreeBSD-SA-15:19.routed
191 Fix routed remote denial of service vulnerability.
193 20150728: p21 FreeBSD-SA-15:15.tcp
194 FreeBSD-SA-15:16.openssh
195 FreeBSD-SA-15:17.bind
197 Fix resource exhaustion in TCP reassembly. [SA-15:15]
199 Fix OpenSSH multiple vulnerabilities. [SA-15:16]
201 Fix BIND remote denial of service vulnerability. [SA-15:17]
203 20150721: p20 FreeBSD-SA-15:13.tcp
205 Fix resource exhaustion due to sessions stuck in LAST_ACK state.
208 20150707: p19 FreeBSD-SA-15:11.bind
209 Fix BIND resolver remote denial of service when validating.
211 20150630: p18 FreeBSD-EN-15:08.sendmail [revised]
212 FreeBSD-EN-15:09.xlocale
214 Improvements to sendmail TLS/DH interoperability. [EN-15:08]
216 Fix inconsistency between locale and rune locale states.
219 20150618: p17 FreeBSD-EN-15:08.sendmail
220 Improvements to sendmail TLS/DH interoperability. [EN-15:08]
222 20150612: p16 FreeBSD-SA-15:10.openssl
223 Fix multiple vulnerabilities in OpenSSL. [SA-15:10]
225 20150609: p15 FreeBSD-EN-15:06.file
227 Updated base system file(1) to 5.22 to address multiple denial
230 20150513: p14 FreeBSD-EN-15:04.freebsd-update
232 Fix bug with freebsd-update(8) that does not ensure the previous
233 upgrade was completed. [EN-15:04]
235 20150407: p13 FreeBSD-SA-15:04.igmp [revised]
237 FreeBSD-SA-15:09.ipv6
239 Improved patch for SA-15:04.igmp.
241 Fix multiple vulnerabilities of ntp. [SA-15:07]
243 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09]
246 Fix patch for SA-15:06.openssl.
248 20150319: p11 FreeBSD-SA-15:06.openssl
249 Fix multiple vulnerabilities in OpenSSL. [SA-15:06]
251 20150225: p10 FreeBSD-SA-15:04.igmp
252 FreeBSD-SA-15:05.bind
254 FreeBSD-EN-15:02.openssl
255 FreeBSD-EN-15:03.freebsd-update
257 Fix integer overflow in IGMP protocol. [SA-15:04]
259 Fix BIND remote denial of service vulnerability. [SA-15:05]
261 Fix vt(4) crash with improper ioctl parameters. [EN-15:01]
263 Updated base system OpenSSL to 0.9.8zd. [EN-15:02]
265 Fix freebsd-update libraries update ordering issue. [EN-15:03]
267 20150127: p9 FreeBSD-SA-15:02.kmem
268 FreeBSD-SA-15:03.sctp
270 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure
271 vulnerability. [SA-15:02]
273 Fix SCTP stream reset vulnerability. [SA-15:03]
275 20150114: p8 FreeBSD-SA-15:01.openssl
276 Fix multiple vulnerabilities in OpenSSL. [SA-15:01]
278 20141223: p7 FreeBSD-SA-14:31.ntp
279 FreeBSD-EN-14:13.freebsd-update
281 Fix multiple vulnerabilities in NTP suite. [SA-14:31]
282 Fix directory deletion issue in freebsd-update. [EN-14:13]
284 20141210: p6 FreeBSD-SA-14:28.file
285 FreeBSD-SA-14:29.bind
287 Fix multiple vulnerabilities in file(1) and libmagic(3).
290 Fix BIND remote denial of service vulnerability. [SA-14:29]
292 20141104: p5 FreeBSD-SA-14:25.setlogin
296 Fix kernel stack disclosure in setlogin(2) / getlogin(2).
299 Fix remote command execution in ftp(1). [SA-14:26]
301 Fix NFSv4 and ZFS cache consistency issue. [EN-14:12]
303 20141022: p4 FreeBSD-EN-14:10.tzdata
304 FreeBSD-EN-14:11.crypt
306 Time zone data file update. [EN-14:10]
308 Change crypt(3) default hashing algorithm back to DES. [EN-14:11]
310 20141021: p3 FreeBSD-SA-14:20.rtsold
311 FreeBSD-SA-14:21.routed
312 FreeBSD-SA-14:22.namei
313 FreeBSD-SA-14:23.openssl
315 Fix rtsold(8) remote buffer overflow vulnerability. [SA-14:20]
317 Fix routed(8) remote denial of service vulnerability. [SA-14:21]
319 Fix memory leak in sandboxed namei lookup. [SA-14:22]
321 Fix OpenSSL multiple vulnerabilities. [SA-14:23]
323 20140916: p2 FreeBSD-SA-14:19.tcp
324 Fix Denial of Service in TCP packet processing. [SA-14:19]
326 20140909: p1 FreeBSD-SA-14:18.openssl
327 Fix OpenSSL multiple vulnerabilities. [SA-14:18]
333 On i386 and amd64 systems, the onifconsole flag is now set by default
334 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled
335 as a login TTY if it is set in the bootloader as an active kernel
336 console. No changes in behavior should result otherwise. To revert to
337 the previous behavior, set ttyu0 to "off" in /etc/ttys.
340 Clang and llvm have been upgraded to 3.4.1 release.
343 Clang and llvm have been upgraded to 3.4 release.
346 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has
347 been deprecated and will not be part of FreeBSD 11.0 and later
348 releases. If you use this driver, please consider switching to
349 the nfe(4) driver instead.
352 The behavior of gss_pseudo_random() for the krb5 mechanism
353 has changed, for applications requesting a longer random string
354 than produced by the underlying enctype's pseudo-random() function.
355 In particular, the random string produced from a session key of
356 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will
357 be different at the 17th octet and later, after this change.
358 The counter used in the PRF+ construction is now encoded as a
359 big-endian integer in accordance with RFC 4402.
360 __FreeBSD_version is bumped to 902505.
366 Behavior of devfs rules path matching has been changed.
367 Pattern is now always matched against fully qualified devfs
368 path and slash characters must be explicitly matched by
369 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs
370 subdirectories must be reviewed.
373 hastctl(8)'s `status' command output changed to terse one-liner format.
374 Scripts using this should switch to `list' command or be rewritten.
377 Fix a bug that allowed a tracing process (e.g. gdb) to write
378 to a memory-mapped file in the traced process's address space
379 even if neither the traced process nor the tracing process had
380 write access to that file.
383 Added ZFS TRIM support which is enabled by default. To disable
384 ZFS TRIM support set vfs.zfs.trim.enabled=0 in loader.conf.
386 Creating new ZFS pools and adding new devices to existing pools
387 first performs a full device level TRIM which can take a significant
388 amount of time. The sysctl vfs.zfs.vdev.trim_on_init can be set to 0
389 to disable this behaviour.
391 ZFS TRIM requires the underlying device support BIO_DELETE which
392 is currently provided by methods such as ATA TRIM and SCSI UNMAP
393 via CAM, which are typically supported by SSD's.
395 Stats for ZFS TRIM can be monitored by looking at the sysctl's
396 under kstat.zfs.misc.zio_trim.
399 `list' command has been added to hastctl(8). For now, it is full
400 equivalent of `status' command.
401 WARNING: in the near future the output of hastctl's status command
402 will change to more terse format. If you use `hastctl status'
403 for parsing in your scripts, switch to `hastctl list'.
406 The mergemaster command now uses the default MAKEOBJDIRPREFIX
407 rather than creating it's own in the temporary directory in
408 order allow access to bootstrapped versions of tools such as
409 install and mtree. When upgrading from version of FreeBSD where
410 the install command does not support -l, you will need to
411 install a new mergemaster command if mergemaster -p is required.
412 This can be accomplished with the command (cd src/usr.sbin/mergemaster
415 Due to the use of the new -l option to install(1) during build
416 and install, you must take care not to directly set the INSTALL
417 make variable in your /etc/make.conf, /etc/src.conf, or on the
418 command line. If you wish to use the -C flag for all installs
419 you may be able to add INSTALL+=-C to /etc/make.conf or
423 Fix a bug that allows NFS clients to issue READDIR on files.
426 The install(1) option -M has changed meaning and now takes an
427 argument that is a file or path to append logs to. In the
428 unlikely event that -M was the last option on the command line
429 and the command line contained at least two files and a target
430 directory the first file will have logs appended to it. The -M
431 option served little practical purpose in the last decade so it's
432 used expected to be extremely rare.
435 A new compression method (lz4) has been merged to. Please refer to
436 zpool-features(7) for more information.
438 Please refer to the "ZFS notes" section of this file for information
439 on upgrading boot ZFS pools.
442 The VFS KBI was changed with the merge of several nullfs
443 optimizations and fixes. All filesystem modules must be
447 With the addition of auditdistd(8), a new auditdistd user is now
448 depended on during installworld. "mergemaster -p" can be used to add
449 the user prior to installworld, as documented in the handbook.
455 A new version of ZFS (pool version 5000) has been merged to 9-STABLE.
456 Starting with this version the old system of ZFS pool versioning
457 is superseded by "feature flags". This concept enables forward
458 compatibility against certain future changes in functionality of ZFS
459 pools. The first two read-only compatible "feature flags" for ZFS
460 pools are "com.delphix:async_destroy" and "com.delphix:empty_bpobj".
461 For more information read the new zpool-features(7) manual page.
462 Please refer to the "ZFS notes" section of this file for information
463 on upgrading boot ZFS pools.
466 The commit introducing bsd.compiler.mk breaks the traditional
467 building of kernels before this point. Add -m ${SRC}/share/mk
468 (for the right value of SRC) to your command lines to work
469 around; update your useland to a point after this; or use the
470 buildkernel/installkernel top-level targets. See also 20120829.
473 The IPFIREWALL_FORWARD kernel option has been removed. Its
474 functionality now turned on by default.
477 The random(4) support for the VIA hardware random number
478 generator (`PADLOCK') is no longer enabled unconditionally.
479 Add the PADLOCK_RNG option in the custom kernel config if
480 needed. The GENERIC kernels on i386 and amd64 do include the
481 option, so the change only affects the custom kernel
485 The amd64 kernel now uses xsetbv, xrstor instructions. To compile with
486 the traditional method, you must update your system with an installworld
487 before the kernel will build. The documented make buildkernel/installkernel
488 interfaces (coupled with fresh make kernel-toolchain) continue to work.
491 The sparc64 ZFS loader has been changed to no longer try to auto-
492 detect ZFS providers based on diskN aliases but now requires these
493 to be explicitly listed in the OFW boot-device environment variable.
496 Now unix domain sockets behave "as expected" on nullfs(5). Previously
497 nullfs(5) did not pass through all behaviours to the underlying layer,
498 as a result if we bound to a socket on the lower layer we could connect
499 only to the lower path; if we bound to the upper layer we could connect
500 only to the upper path. The new behavior is one can connect to both the
501 lower and the upper paths regardless what layer path one binds to.
504 The acpi_wmi(4) status device /dev/wmistat has been renamed to
508 A new VOP_ADVISE() was added to support posix_fadvise(2). All
509 filesystem modules must be recompiled.
512 The interface of the VOP_VPTOCNP(9) changed, now the returned
513 vnode shall be referenced, previously it was required to be
514 only held. All in-tree filesystems are converted.
520 The broken amd(4) driver has been replaced with esp(4) in the amd64,
521 i386 and pc98 GENERIC kernel configuration files.
524 This commit modifies vfs_register() so that it uses a hash
525 calculation to set vfc_typenum, which is enabled by default.
526 The first time a system is booted after this change, the
527 vfc_typenum values will change for all file systems. The
528 main effect of this is a change to the NFS server file handles
529 for file systems that use vfc_typenum in their fsid, such as ZFS.
530 It will, however, prevent vfc_typenum from changing when file
531 systems are loaded in a different order for subsequent reboots.
532 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf
533 until you are ready to remount all NFS clients after a reboot.
536 Bump the shared library version numbers for libraries that
537 do not use symbol versioning, have changed the ABI compared
538 to stable/8 and which shared library version was not bumped.
539 Done as part of 9.0-RELEASE cycle.
542 During the merge of Capsicum features, the fget(9) KPI was modified.
543 This may require the rebuilding of out-of-tree device drivers --
544 issues have been reported specifically with the nVidia device driver.
545 __FreeBSD_version is bumped to 900041.
547 Also, there is a period between 20110811 and 20110814 where the
548 special devices /dev/{stdin,stdout,stderr} did not work correctly.
549 Building world from a kernel during that window may not work.
552 The packet filter (pf) code has been updated to OpenBSD 4.5.
553 You need to update userland tools to be in sync with kernel.
554 This update breaks backward compatibility with earlier pfsync(4)
555 versions. Care must be taken when updating redundant firewall setups.
558 The following sysctls and tunables are retired on x86 platforms:
560 machdep.hlt_logical_cpus
561 The following sysctl is retired:
562 machdep.hyperthreading_allowed
563 The sysctls were supposed to provide a way to dynamically offline and
564 online selected CPUs on x86 platforms, but the implementation has not
565 been reliable especially with SCHED_ULE scheduler.
566 machdep.hyperthreading_allowed tunable is still available to ignore
567 hyperthreading CPUs at OS level.
568 Individual CPUs can be disabled using hint.lapic.X.disabled tunable,
569 where X is an APIC ID of a CPU. Be advised, though, that disabling
570 CPUs in non-uniform fashion will result in non-uniform topology and
571 may lead to sub-optimal system performance with SCHED_ULE, which is
575 cpumask_t type is retired and cpuset_t is used in order to describe
579 Changes to ifconfig(8) for dynamic address family detection mandate
580 that you are running a kernel of 20110525 or later. Make sure to
581 follow the update procedure to boot a new kernel before installing
585 Support for sun4v architecture is officially dropped
588 Several KPI breaking changes have been committed to the mii(4) layer,
589 the PHY drivers and consequently some Ethernet drivers using mii(4).
590 This means that miibus.ko and the modules of the affected Ethernet
591 drivers need to be recompiled.
593 Note to kernel developers: Given that the OUI bit reversion problem
594 was fixed as part of these changes all mii(4) commits related to OUIs,
595 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific
596 handling, no longer can be merged verbatim to stable/8 and previous
600 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci'
601 into their kernel configurations along with 'device pci'.
604 The default NFS client is now the new NFS client, so fstype "newnfs"
605 is now "nfs" and the regular/old NFS client is now fstype "oldnfs".
606 Although mounts via fstype "nfs" will usually work without userland
607 changes, it is recommended that the mount(8) and mount_nfs(8)
608 commands be rebuilt from sources and that a link to mount_nfs called
609 mount_oldnfs be created. The new client is compiled into the
610 kernel with "options NFSCL" and this is needed for diskless root
611 file systems. The GENERIC kernel configs have been changed to use
612 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER.
613 To use the regular/old client, you can "mount -t oldnfs ...". For
614 a diskless root file system, you must also include a line like:
616 vfs.root.mountfrom="oldnfs:"
618 in the boot/loader.conf on the root fs on the NFS server to make
619 a diskless root fs use the old client.
622 The GENERIC kernels for all architectures now default to the new
623 CAM-based ATA stack. It means that all legacy ATA drivers were
624 removed and replaced by respective CAM drivers. If you are using
625 ATA device names in /etc/fstab or other places, make sure to update
626 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY,
627 where 'Y's are the sequential numbers starting from zero for each type
628 in order of detection, unless configured otherwise with tunables,
629 see cam(4)). There will be symbolic links created in /dev/ to map
630 old adX devices to the respective adaY. They should provide basic
631 compatibility for file systems mounting in most cases, but they do
632 not support old user-level APIs and do not have respective providers
633 in GEOM. Consider using updated management tools with new device names.
635 It is possible to load devices ahci, ata, siis and mvs as modules,
636 but option ATA_CAM should remain in kernel configuration to make ata
637 module work as CAM driver supporting legacy ATA controllers. Device ata
638 still can be used in modular fashion (atacore + ...). Modules atadisk
639 and atapi* are not used and won't affect operation in ATA_CAM mode.
640 Note that to use CAM-based ATA kernel should include CAM devices
641 scbus, pass, da (or explicitly ada), cd and optionally others. All of
642 them are parts of the cam module.
644 ataraid(4) functionality is now supported by the RAID GEOM class.
645 To use it you can load geom_raid kernel module and use graid(8) tool
646 for management. Instead of /dev/arX device names, use /dev/raid/rX.
648 No kernel config options or code have been removed, so if a problem
649 arises, please report it and optionally revert to the old ATA stack.
650 In order to do it you can remove from the kernel config:
655 , and instead add back:
656 device atadisk # ATA disk drives
657 device ataraid # ATA RAID drives
658 device atapicd # ATAPI CDROM drives
659 device atapifd # ATAPI floppy drives
660 device atapist # ATAPI tape drives
663 The default NFS server has been changed to the new server, which
664 was referred to as the experimental server. If you need to switch
665 back to the old NFS server, you must now put the "-o" option on
666 both the mountd and nfsd commands. This can be done using the
667 mountd_flags and nfs_server_flags rc.conf variables until an
668 update to the rc scripts is committed, which is coming soon.
671 The GNU Objective-C runtime library (libobjc), and other Objective-C
672 related components have been removed from the base system. If you
673 require an Objective-C library, please use one of the available ports.
676 ath(4) has been split into bus- and device- modules. if_ath contains
677 the HAL, the TX rate control and the network device code. if_ath_pci
678 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb
679 contains the AHB glue. Users need to load both if_ath_pci and if_ath
680 in order to use ath on everything else.
682 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only
683 need to load if_ath and if_ath_pci for ath(4) operation.
686 As part of the replacement of sysinstall, the process of building
687 release media has changed significantly. For details, please re-read
688 release(7), which has been updated to reflect the new build process.
691 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This
692 is the last available version under GPLv2. It brings a number of new
693 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE
694 4.1 and SSE 4.2), better support for powerpc64, a number of new
695 directives, and lots of other small improvements. See the ChangeLog
696 file in contrib/binutils for the full details.
699 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868
700 compliant, and will now use half of hash for authentication.
701 This will break interoperability with all stacks (including all
702 actual FreeBSD versions) who implement
703 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for
705 The only workaround with such peers is to use another HMAC
706 algorithm for IPsec ("phase 2") authentication.
709 Remove the uio_yield prototype and symbol. This function has
710 been misnamed since it was introduced and should not be
711 globally exposed with this name. The equivalent functionality
712 is now available using kern_yield(curthread->td_user_pri).
713 The function remains undocumented.
716 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers,
717 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking
718 for scalar sysctls is defined but disabled. Code that needs
719 UQUAD to pass the type checking that must compile on older
720 systems where the define is not present can check against
721 __FreeBSD_version >= 900030.
723 The system dialog(1) has been replaced with a new version previously
724 in ports as devel/cdialog. dialog(1) is mostly command-line compatible
725 with the previous version, but the libdialog associated with it has
726 a largely incompatible API. As such, the original version of libdialog
727 will be kept temporarily as libodialog, until its base system consumers
728 are replaced or updated. Bump __FreeBSD_version to 900030.
731 If you are trying to run make universe on a -stable system, and you get
732 the following warning:
733 "Makefile", line 356: "Target architecture for i386/conf/GENERIC
734 unknown. config(8) likely too old."
735 or something similar to it, then you must upgrade your -stable system
736 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in
737 stable/8) or build the config from the latest stable/8 branch and
738 install it on your system.
740 Prior to this date, building a current universe on 8-stable system from
741 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing
742 error in the first kernel build phase. A new config on those old
743 systems will fix that problem for older versions of -current.
746 The TCP stack has been modified to allow Khelp modules to interact with
747 it via helper hook points and store per-connection data in the TCP
748 control block. Bump __FreeBSD_version to 900029. User space tools that
749 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to
753 Generic IEEE 802.3 annex 31B full duplex flow control support has been
754 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along
755 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted
756 to take advantage of it instead of using custom implementations. This
757 means that these drivers now no longer unconditionally advertise
758 support for flow control but only do so if flow control is a selected
759 media option. This was implemented in the generic support that way in
760 order to allow flow control to be switched on and off via ifconfig(8)
761 with the PHY specific default to typically off in order to protect
762 from unwanted effects. Consequently, if you used flow control with
763 one of the above mentioned drivers you now need to explicitly enable
765 ifconfig bge0 media auto mediaopt flowcontrol
767 Along with the above mentioned changes generic support for setting
768 1000baseT master mode also has been added and brgphy(4), ciphy(4),
769 e1000phy(4) as well as ip1000phy(4) have been converted to take
770 advantage of it. This means that these drivers now no longer take the
771 link0 parameter for selecting master mode but the master media option
772 has to be used instead, for example like in the following:
773 ifconfig bge0 media 1000baseT mediaopt full-duplex,master
775 Selection of master mode now is also available with all other PHY
776 drivers supporting 1000baseT.
779 The TCP stack has received a significant update to add support for
780 modularised congestion control and generally improve the clarity of
781 congestion control decisions. Bump __FreeBSD_version to 900025. User
782 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g.
783 sockstat) need to be recompiled.
786 The man(1) utility has been replaced by a new version that no longer
787 uses /etc/manpath.config. Please consult man.conf(5) for how to
788 migrate local entries to the new format.
791 The copyright strings printed by login(1) and sshd(8) at the time of a
792 new connection have been removed to follow other operating systems and
796 A workaround for a fixed ld bug has been removed in kernel code,
797 so make sure that your system ld is built from sources after
798 revision 210245 from 2010-07-19 (r211583 if building head kernel
799 on stable/8, r211584 for stable/7; both from 2010-08-21).
800 A symptom of incorrect ld version is different addresses for
801 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules.
804 The $ipv6_prefer variable in rc.conf(5) has been split into
805 $ip6addrctl_policy and $ipv6_activate_all_interfaces.
807 The $ip6addrctl_policy is a variable to choose a pre-defined
808 address selection policy set by ip6addrctl(8). A value
809 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The
812 The $ipv6_activate_all_interfaces specifies whether IFDISABLED
813 flag (see an entry of 20090926) is set on an interface with no
814 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for
815 security reason. If you want IPv6 link-local address on all
816 interfaces by default, set this to "YES".
818 The old ipv6_prefer="YES" is equivalent to
819 ipv6_activate_all_interfaces="YES" and
820 ip6addrctl_policy="ipv6_prefer".
823 DTrace has grown support for userland tracing. Due to this, DTrace is
824 now i386 and amd64 only.
825 dtruss(1) is now installed by default on those systems and a new
826 kernel module is needed for userland tracing: fasttrap.
827 No changes to your kernel config file are necessary to enable
828 userland tracing, but you might consider adding 'STRIP=' and
829 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want
830 to have informative userland stack traces in DTrace (ustack).
833 The acpi_aiboost(4) driver has been removed in favor of the new
834 aibs(4) driver. You should update your kernel configuration file.
837 BSD grep has been imported to the base system and it is built by
838 default. It is completely BSD licensed, highly GNU-compatible, uses
839 less memory than its GNU counterpart and has a small codebase.
840 However, it is slower than its GNU counterpart, which is mostly
841 noticeable for larger searches, for smaller ones it is measurable
842 but not significant. The reason is complex, the most important factor
843 is that we lack a modern and efficient regex library and GNU
844 overcomes this by optimizing the searches internally. Future work
845 on improving the regex performance is planned, for the meantime,
846 users that need better performance, can build GNU grep instead by
847 setting the WITH_GNU_GREP knob.
850 Due to the import of powerpc64 support, all existing powerpc kernel
851 configuration files must be updated with a machine directive like this:
852 machine powerpc powerpc
854 In addition, an updated config(8) is required to build powerpc kernels
858 A new version of ZFS (version 15) has been merged to -HEAD.
859 This version uses a python library for the following subcommands:
860 zfs allow, zfs unallow, zfs groupspace, zfs userspace.
861 For full functionality of these commands the following port must
862 be installed: sysutils/py-zfs
865 'vm_page's are now hashed by physical address to an array of mutexes.
866 Currently this is only used to serialize access to hold_count. Over
867 time the page queue mutex will be peeled away. This changes the size
868 of pmap on every architecture. And requires all callers of vm_page_hold
869 and vm_page_unhold to be updated.
872 WITH_CTF can now be specified in src.conf (not recommended, there
873 are some problems with static executables), make.conf (would also
874 affect ports which do not use GNU make and do not override the
875 compile targets) or in the kernel config (via "makeoptions
877 When WITH_CTF was specified there before this was silently ignored,
878 so make sure that WITH_CTF is not used in places which could lead
879 to unwanted behavior.
882 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32
883 to allow 32-bit compatibility on non-x86 platforms. All kernel
884 configurations on amd64 and ia64 platforms using these options must
885 be modified accordingly.
888 The utmp user accounting database has been replaced with utmpx,
889 the user accounting interface standardized by POSIX.
890 Unfortunately the semantics of utmp and utmpx don't match,
891 making it practically impossible to support both interfaces.
892 The user accounting database is used by tools like finger(1),
893 last(1), talk(1), w(1) and ac(8).
895 All applications in the base system use utmpx. This means only
896 local binaries (e.g. from the ports tree) may still use these
897 utmp database files. These applications must be rebuilt to make
900 After the system has been upgraded, it is safe to remove the old
901 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*),
902 assuming their contents is of no importance anymore. Old wtmp
903 databases can only be used by last(1) and ac(8) after they have
904 been converted to the new format using wtmpcvt(1).
907 Introduce the kernel thread "deadlock resolver" (which can be enabled
908 via the DEADLKRES option, see NOTES for more details) and the
909 sleepq_type() function for sleepqueues.
912 The rc.firewall and rc.firewall6 were unified, and
913 rc.firewall6 and rc.d/ip6fw were removed.
914 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc
915 variables are obsoleted. Instead, the following new rc
916 variables are added to rc.d/ipfw:
918 firewall_client_net_ipv6, firewall_simple_iif_ipv6,
919 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6,
920 firewall_simple_onet_ipv6, firewall_trusted_ipv6
922 The meanings correspond to the relevant IPv4 variables.
928 The default terminal emulation for syscons(4) has been changed
929 from cons25 to xterm on all platforms except pc98. This means
930 that the /etc/ttys file needs to be updated to ensure correct
931 operation of applications on the console.
933 The terminal emulation style can be toggled per window by using
934 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration
935 options can be used to change the compile-time default back to
938 To prevent graphical artifacts, make sure the TERM environment
939 variable is set to match the terminal emulation that is being
940 performed by syscons(4).
943 The layout of the structure ieee80211req_scan_result has changed.
944 Applications that require wireless scan results (e.g. ifconfig(8))
945 from net80211 need to be recompiled.
947 Applications such as wpa_supplicant(8) may require a full world
948 build without using NO_CLEAN in order to get synchronized with the
952 The iwn(4) driver has been updated to support the 5000 and 5150 series.
953 There's one kernel module for each firmware. Adding "device iwnfw"
954 to the kernel configuration file means including all three firmware
955 images inside the kernel. If you want to include just the one for
956 your wireless card, use the devices iwn4965fw, iwn5000fw or
960 The rc.d/network_ipv6, IPv6 configuration script has been integrated
961 into rc.d/netif. The changes are the following:
963 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF
964 for IPv4. For aliases, $ifconfig_IF_aliasN should be used.
965 Note that both variables need the "inet6" keyword at the head.
967 Do not set $ipv6_network_interfaces manually if you do not
968 understand what you are doing. It is not needed in most cases.
970 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but
973 2. $ipv6_enable is obsolete. Use $ipv6_prefer and
974 "inet6 accept_rtadv" keyword in ifconfig(8) instead.
976 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and
977 all configured interfaces have "inet6 accept_rtadv" in the
978 $ifconfig_IF_ipv6. These are for backward compatibility.
980 3. A new variable $ipv6_prefer has been added. If NO, IPv6
981 functionality of interfaces with no corresponding
982 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag,
983 and the default address selection policy of ip6addrctl(8)
984 is the IPv4-preferred one (see rc.d/ip6addrctl for more details).
985 Note that if you want to configure IPv6 functionality on the
986 disabled interfaces after boot, first you need to clear the flag by
987 using ifconfig(8) like:
989 ifconfig em0 inet6 -ifdisabled
991 If YES, the default address selection policy is set as
994 The default value of $ipv6_prefer is NO.
996 4. If your system need to receive Router Advertisement messages,
997 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8)
998 scripts automatically invoke rtsol(8) when the interface becomes
999 UP. The Router Advertisement messages are used for SLAAC
1000 (State-Less Address AutoConfiguration).
1003 802.11s D3.03 support was committed. This is incompatible with the
1004 previous code, which was based on D3.0.
1007 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value
1008 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to
1009 control whether accepting Router Advertisement messages or not.
1010 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and
1011 a sysctl variable net.inet6.ip6.auto_linklocal is its default value.
1012 The ifconfig(8) utility now supports these flags.
1015 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
1016 mount(8) and -a option for df(1) to see them.
1019 The old tunable hw.bus.devctl_disable has been superseded by
1020 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be
1021 replaced by hw.bus.devctl_queue=0. The default for this new tunable
1025 Remove the option STOP_NMI. The default action is now to use NMI only
1026 for KDB via the newly introduced function stop_cpus_hard() and
1027 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64.
1030 The stable/8 branch created in subversion. This corresponds to the
1031 RELENG_8 branch in CVS.
1034 Bump the shared library version numbers for all libraries that do not
1035 use symbol versioning as part of the 8.0-RELEASE cycle. Bump
1036 __FreeBSD_version to 800105.
1039 Due to changes in the implementation of virtual network stack support,
1040 all network-related kernel modules must be recompiled. As this change
1041 breaks the ABI, bump __FreeBSD_version to 800104.
1044 The TOE interface to the TCP syncache has been modified to remove
1045 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack.
1046 The cxgb driver is the only TOE consumer affected by this change, and
1047 needs to be recompiled along with the kernel. As this change breaks
1048 the ABI, bump __FreeBSD_version to 800103.
1051 Padding has been added to struct tcpcb, sackhint and tcpstat in
1052 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
1053 maintaining the ABI. However, this change breaks the ABI, so bump
1054 __FreeBSD_version to 800102. User space tools that rely on the size of
1055 any of these structs (e.g. sockstat) need to be recompiled.
1058 The NFS_LEGACYRPC option has been removed along with the old kernel
1059 RPC implementation that this option selected. Kernel configurations
1060 may need to be adjusted.
1063 The network interface device nodes at /dev/net/<interface> have been
1064 removed. All ioctl operations can be performed the normal way using
1065 routing sockets. The kqueue functionality can generally be replaced
1066 with routing sockets.
1069 The documentation from the FreeBSD Documentation Project (Handbook,
1070 FAQ, etc.) is now installed via packages by sysinstall(8) and under
1071 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc.
1074 The ABI of various structures related to the SYSV IPC API have been
1075 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel
1076 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to
1080 Layout of struct vnet has changed as routing related variables were
1081 moved to their own Vimage module. Modules need to be recompiled. Bump
1082 __FreeBSD_version to 800099.
1085 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024
1086 respectively. As long as no more than 16 groups per process are used,
1087 no changes should be visible. When more than 16 groups are used, old
1088 binaries may fail if they call getgroups() or getgrouplist() with
1089 statically sized storage. Recompiling will work around this, but
1090 applications should be modified to use dynamically allocated storage
1091 for group arrays as POSIX.1-2008 does not cap an implementation's
1092 number of supported groups at NGROUPS_MAX+1 as previous versions did.
1094 NFS and portalfs mounts may also be affected as the list of groups is
1095 truncated to 16. Users of NFS who use more than 16 groups, should
1096 take care that negative group permissions are not used on the exported
1097 file systems as they will not be reliable unless a GSSAPI based
1098 authentication method is used.
1101 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This
1102 option compiles in the support for adaptive spinning for lockmgrs
1103 which want to enable it. The lockinit() function now accepts the flag
1104 LK_ADAPTIVE in order to make the lock object subject to adaptive
1105 spinning when both held in write and read mode.
1108 The layout of the structure returned by IEEE80211_IOC_STA_INFO has
1109 changed. User applications that use this ioctl need to be rebuilt.
1112 The layout of struct thread has changed. Kernel and modules need to
1116 The layout of structs ifnet, domain, protosw and vnet_net has changed.
1117 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097.
1120 window(1) has been removed from the base system. It can now be
1121 installed from ports. The port is called misc/window.
1124 The way we are storing and accessing `routing table' entries has
1125 changed. Programs reading the FIB, like netstat, need to be
1129 A new netisr implementation has been added for FreeBSD 8. Network
1130 file system modules, such as igmp, ipdivert, and others, should be
1132 Bump __FreeBSD_version to 800096.
1135 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no
1139 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
1140 Bump __FreeBSD_version to 800094.
1143 Add mnt_xflag field to 'struct mount'. File system modules need to be
1145 Bump __FreeBSD_version to 800093.
1148 The compiling option ADAPTIVE_SX has been retired while it has been
1149 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
1150 The KPI for sx_init_flags() changes as accepting flags:
1151 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has
1152 been introduced in order to handle the reversed logic.
1153 Bump __FreeBSD_version to 800092.
1156 Add support for hierarchical jails. Remove global securelevel.
1157 Bump __FreeBSD_version to 800091.
1160 The layout of struct vnet_net has changed, therefore modules
1162 Bump __FreeBSD_version to 800090.
1165 The newly imported zic(8) produces a new format in the output. Please
1166 run tzsetup(8) to install the newly created data to /etc/localtime.
1169 The sysctl tree for the usb stack has renamed from hw.usb2.* to
1170 hw.usb.* and is now consistent again with previous releases.
1173 802.11 monitor mode support was revised and driver api's were changed.
1174 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead
1175 of DLT_IEEE802_11. No user-visible data structures were changed but
1176 applications that use DLT_IEEE802_11 may require changes.
1177 Bump __FreeBSD_version to 800088.
1180 The layout of the following structs has changed: sysctl_oid,
1181 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
1182 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
1183 panics may be experienced. World rebuild is required for
1184 correctly checking networking state from userland.
1185 Bump __FreeBSD_version to 800085.
1188 MLDv2 and Source-Specific Multicast (SSM) have been merged
1189 to the IPv6 stack. VIMAGE hooks are in but not yet used.
1190 The implementation of SSM within FreeBSD's IPv6 stack closely
1191 follows the IPv4 implementation.
1193 For kernel developers:
1195 * The most important changes are that the ip6_output() and
1196 ip6_input() paths no longer take the IN6_MULTI_LOCK,
1197 and this lock has been downgraded to a non-recursive mutex.
1199 * As with the changes to the IPv4 stack to support SSM, filtering
1200 of inbound multicast traffic must now be performed by transport
1201 protocols within the IPv6 stack. This does not apply to TCP and
1202 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
1204 * The KPIs used by IPv6 multicast are similar to those used by
1205 the IPv4 stack, with the following differences:
1206 * im6o_mc_filter() is analogous to imo_multicast_filter().
1207 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
1208 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
1209 * IN6_LOOKUP_MULTI() has been deprecated and removed.
1210 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
1211 for MLDv1 have an additional 'timer' argument which is used to
1212 jitter the initial membership report for the solicited-node
1213 multicast membership on-link.
1214 * This is not strictly needed for MLDv2, which already jitters
1215 its report transmissions. However, the 'timer' argument is
1216 preserved in case MLDv1 is active on the interface.
1218 * The KAME linked-list based IPv6 membership implementation has
1219 been refactored to use a vector similar to that used by the IPv4
1221 Code which maintains a list of its own multicast memberships
1222 internally, e.g. carp, has been updated to reflect the new
1225 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
1226 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
1227 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
1228 implementation constraint which needs to be addressed in HEAD.
1230 For application developers:
1232 * The changes are broadly similar to those made for the IPv4
1235 * The use of IPv4 and IPv6 multicast socket options on the same
1236 socket, using mapped addresses, HAS NOT been tested or supported.
1238 * There are a number of issues with the implementation of various
1239 IPv6 multicast APIs which need to be resolved in the API surface
1240 before the implementation is fully compatible with KAME userland
1241 use, and these are mostly to do with interface index treatment.
1243 * The literature available discusses the use of either the delta / ASM
1244 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
1245 using setsourcefilter(3)/getsourcefilter(3). For more information
1246 please refer to RFC 3768, 'Socket Interface Extensions for
1247 Multicast Source Filters'.
1249 * Applications which use the published RFC 3678 APIs should be fine.
1251 For systems administrators:
1253 * The mtest(8) utility has been refactored to support IPv6, in
1254 addition to IPv4. Interface addresses are no longer accepted
1255 as arguments, their names must be used instead. The utility
1256 will map the interface name to its first IPv4 address as
1257 returned by getifaddrs(3).
1259 * The ifmcstat(8) utility has also been updated to print the MLDv2
1260 endpoint state and source filter lists via sysctl(3).
1262 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
1263 loopback of IPv6 multicast datagrams by default; it defaults to 1
1264 to preserve the existing behaviour. Disabling multicast loopback is
1265 recommended for optimal system performance.
1267 * The IPv6 MROUTING code has been changed to examine this sysctl
1268 instead of attempting to perform a group lookup before looping
1269 back forwarded datagrams.
1271 Bump __FreeBSD_version to 800084.
1274 Implement low-level Bluetooth HCI API.
1275 Bump __FreeBSD_version to 800083.
1278 The layout of struct malloc_type, used by modules to register new
1279 memory allocation types, has changed. Most modules will need to
1280 be rebuilt or panics may be experienced.
1281 Bump __FreeBSD_version to 800081.
1284 Anticipate overflowing inp_flags - add inp_flags2.
1285 This changes most offsets in inpcb, so checking v4 connection
1286 state will require a world rebuild.
1287 Bump __FreeBSD_version to 800080.
1290 Add an llentry to struct route and struct route_in6. Modules
1291 embedding a struct route will need to be recompiled.
1292 Bump __FreeBSD_version to 800079.
1295 The size of rt_metrics_lite and by extension rtentry has changed.
1296 Networking administration apps will need to be recompiled.
1297 The route command now supports show as an alias for get, weighting
1298 of routes, sticky and nostick flags to alter the behavior of stateful
1300 Bump __FreeBSD_version to 800078.
1303 Do not use Giant for kbdmux(4) locking. This is wrong and
1304 apparently causing more problems than it solves. This will
1305 re-open the issue where interrupt handlers may race with
1306 kbdmux(4) in polling mode. Typical symptoms include (but
1307 not limited to) duplicated and/or missing characters when
1308 low level console functions (such as gets) are used while
1309 interrupts are enabled (for example geli password prompt,
1310 mountroot prompt etc.). Disabling kbdmux(4) may help.
1313 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
1314 kernel modules referencing any of the above need to be recompiled.
1315 Bump __FreeBSD_version to 800075.
1318 GEOM_PART has become the default partition slicer for storage devices,
1319 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
1320 introduces some changes:
1322 MSDOS/EBR: the devices created from MSDOS extended partition entries
1323 (EBR) can be named differently than with GEOM_MBR and are now symlinks
1324 to devices with offset-based names. fstabs may need to be modified.
1326 BSD: the "geometry does not match label" warning is harmless in most
1327 cases but it points to problems in file system misalignment with
1328 disk geometry. The "c" partition is now implicit, covers the whole
1329 top-level drive and cannot be (mis)used by users.
1331 General: Kernel dumps are now not allowed to be written to devices
1332 whose partition types indicate they are meant to be used for file
1333 systems (or, in case of MSDOS partitions, as something else than
1336 Most of these changes date approximately from 200812.
1339 The uscanner(4) driver has been removed from the kernel. This follows
1340 Linux removing theirs in 2.6 and making libusb the default interface
1341 (supported by sane).
1344 The multicast forwarding code has been cleaned up. netstat(1)
1345 only relies on KVM now for printing bandwidth upcall meters.
1346 The IPv4 and IPv6 modules are split into ip_mroute_mod and
1347 ip6_mroute_mod respectively. The config(5) options for statically
1348 compiling this code remain the same, i.e. 'options MROUTING'.
1351 Support for the IFF_NEEDSGIANT network interface flag has been
1352 removed, which means that non-MPSAFE network device drivers are no
1353 longer supported. In particular, if_ar, if_sr, and network device
1354 drivers from the old (legacy) USB stack can no longer be built or
1358 POSIX.1 Native Language Support (NLS) has been enabled in libc and
1359 a bunch of new language catalog files have also been added.
1360 This means that some common libc messages are now localized and
1361 they depend on the LC_MESSAGES environmental variable.
1364 The k8temp(4) driver has been renamed to amdtemp(4) since
1365 support for Family 10 and Family 11 CPU families was added.
1368 IGMPv3 and Source-Specific Multicast (SSM) have been merged
1369 to the IPv4 stack. VIMAGE hooks are in but not yet used.
1371 For kernel developers, the most important changes are that the
1372 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
1373 and this lock has been downgraded to a non-recursive mutex.
1375 Transport protocols (UDP, Raw IP) are now responsible for filtering
1376 inbound multicast traffic according to group membership and source
1377 filters. The imo_multicast_filter() KPI exists for this purpose.
1378 Transports which do not use multicast (SCTP, TCP) already reject
1379 multicast by default. Forwarding and receive performance may improve
1380 as a mutex acquisition is no longer needed in the ip_input()
1381 low-level input path. in_addmulti() and in_delmulti() are shimmed
1382 to new KPIs which exist to support SSM in-kernel.
1384 For application developers, it is recommended that loopback of
1385 multicast datagrams be disabled for best performance, as this
1386 will still cause the lock to be taken for each looped-back
1387 datagram transmission. The net.inet.ip.mcast.loop sysctl may
1388 be tuned to 0 to disable loopback by default; it defaults to 1
1389 to preserve the existing behaviour.
1391 For systems administrators, to obtain best performance with
1392 multicast reception and multiple groups, it is always recommended
1393 that a card with a suitably precise hash filter is used. Hash
1394 collisions will still result in the lock being taken within the
1395 transport protocol input path to check group membership.
1397 If deploying FreeBSD in an environment with IGMP snooping switches,
1398 it is recommended that the net.inet.igmp.sendlocal sysctl remain
1399 enabled; this forces 224.0.0.0/24 group membership to be announced
1402 The size of 'struct igmpstat' has changed; netstat needs to be
1403 recompiled to reflect this.
1404 Bump __FreeBSD_version to 800070.
1407 libusb20.so.1 is now installed as libusb.so.1 and the ports system
1408 updated to use it. This requires a buildworld/installworld in order to
1409 update the library and dependencies (usbconfig, etc). Its advisable to
1410 rebuild all ports which uses libusb. More specific directions are given
1411 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
1412 libusb are no longer required and can be removed.
1415 A workaround is committed to allow the creation of System V shared
1416 memory segment of size > 2 GB on the 64-bit architectures.
1417 Due to a limitation of the existing ABI, the shm_segsz member
1418 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
1419 wrong for large segments. Note that limits must be explicitly
1420 raised to allow such segments to be created.
1423 The layout of struct ifnet has changed, requiring a rebuild of all
1424 network device driver modules.
1427 The /dev handling for the new USB stack has changed, a
1428 buildworld/installworld is required for libusb20.
1431 The new USB2 stack has now been permanently moved in and all kernel and
1432 module names reverted to their previous values (eg, usb, ehci, ohci,
1433 ums, ...). The old usb stack can be compiled in by prefixing the name
1434 with the letter 'o', the old usb modules have been removed.
1435 Updating entry 20090216 for xorg and 20090215 for libmap may still
1439 The rc.conf(5) option if_up_delay has been renamed to
1440 defaultroute_delay to better reflect its purpose. If you have
1441 customized this setting in /etc/rc.conf you need to update it to
1445 xorg 7.4 wants to configure its input devices via hald which does not
1446 yet work with USB2. If the keyboard/mouse does not work in xorg then
1448 Option "AllowEmptyInput" "off"
1449 to your ServerLayout section. This will cause X to use the configured
1450 kbd and mouse sections from your xorg.conf.
1453 The GENERIC kernels for all architectures now default to the new USB2
1454 stack. No kernel config options or code have been removed so if a
1455 problem arises please report it and optionally revert to the old USB
1456 stack. If you are loading USB kernel modules or have a custom kernel
1457 that includes GENERIC then ensure that usb names are also changed over,
1458 eg uftdi -> usb2_serial_ftdi.
1460 Older programs linked against the ports libusb 0.1 need to be
1461 redirected to the new stack's libusb20. /etc/libmap.conf can
1463 # Map old usb library to new one for usb2 stack
1464 libusb-0.1.so.8 libusb20.so.1
1467 All USB ethernet devices now attach as interfaces under the name ueN
1468 (eg. ue0). This is to provide a predictable name as vendors often
1469 change usb chipsets in a product without notice.
1472 The ichsmb(4) driver has been changed to require SMBus slave
1473 addresses be left-justified (xxxxxxx0b) rather than right-justified.
1474 All of the other SMBus controller drivers require left-justified
1475 slave addresses, so this change makes all the drivers provide the
1479 INET6 statistics (struct ip6stat) was updated.
1480 netstat(1) needs to be recompiled.
1483 NTFS has been removed from GENERIC kernel on amd64 to match
1484 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
1485 will load ntfs.ko module automatically when NTFS support is
1486 actually needed, unless ntfs.ko is not installed or security
1487 level prohibits loading kernel modules. If either is the case,
1488 "options NTFS" has to be added into kernel config.
1491 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
1492 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
1493 800061. User space tools that rely on the size of struct tcpcb in
1494 tcp_var.h (e.g. sockstat) need to be recompiled.
1497 ng_tty(4) module updated to match the new TTY subsystem.
1498 Due to API change, user-level applications must be updated.
1499 New API support added to mpd5 CVS and expected to be present
1500 in next mpd5.3 release.
1503 With __FreeBSD_version 800060 the makefs tool is part of
1504 the base system (it was a port).
1507 The afdata and ifnet locks have been changed from mutexes to
1508 rwlocks, network modules will need to be re-compiled.
1511 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
1512 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
1513 The new code reduced struct rtentry{} by 16 bytes on 32-bit
1514 architecture and 40 bytes on 64-bit architecture. The userland
1515 applications "arp" and "ndp" have been updated accordingly.
1516 The output from "netstat -r" shows only routing entries and
1517 none of the L2 information.
1520 __FreeBSD_version 800057 marks the switchover from the
1521 binary ath hal to source code. Users must add the line:
1523 options AH_SUPPORT_AR5416
1525 to their kernel config files when specifying:
1529 The ath_hal module no longer exists; the code is now compiled
1530 together with the driver in the ath module. It is now
1531 possible to tailor chip support (i.e. reduce the set of chips
1532 and thereby the code size); consult ath_hal(4) for details.
1535 __FreeBSD_version 800054 adds memory barriers to
1536 <machine/atomic.h>, new interfaces to ifnet to facilitate
1537 multiple hardware transmit queues for cards that support
1538 them, and a lock-less ring-buffer implementation to
1539 enable drivers to more efficiently manage queueing of
1543 A new version of ZFS (version 13) has been merged to -HEAD.
1544 This version has zpool attribute "listsnapshots" off by
1545 default, which means "zfs list" does not show snapshots,
1546 and is the same as Solaris behavior.
1549 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
1552 The uhci, ohci, ehci and slhci USB Host controller drivers have
1553 been put into separate modules. If you load the usb module
1554 separately through loader.conf you will need to load the
1555 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
1556 controller add the following to loader.conf:
1562 The ABI used by the PMC toolset has changed. Please keep
1563 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
1567 atapci kernel module now includes only generic PCI ATA
1568 driver. AHCI driver moved to ataahci kernel module.
1569 All vendor-specific code moved into separate kernel modules:
1570 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
1571 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
1572 atamarvell, atamicron, atanational, atanetcell, atanvidia,
1573 atapromise, ataserverworks, atasiliconimage, atasis, atavia
1576 The TTY subsystem of the kernel has been replaced by a new
1577 implementation, which provides better scalability and an
1578 improved driver model. Most common drivers have been migrated to
1579 the new TTY subsystem, while others have not. The following
1580 drivers have not yet been ported to the new TTY layer:
1583 cy, digi, rc, rp, sio
1589 ng_h4, ng_tty, ppp, sl, snp
1591 Adding these drivers to your kernel configuration file shall
1592 cause compilation to fail.
1595 ntpd has been upgraded to 4.2.4p5.
1598 OpenSSH has been upgraded to 5.1p1.
1600 For many years, FreeBSD's version of OpenSSH preferred DSA
1601 over RSA for host and user authentication keys. With this
1602 upgrade, we've switched to the vendor's default of RSA over
1603 DSA. This may cause upgraded clients to warn about unknown
1604 host keys even for previously known hosts. Users should
1605 follow the usual procedure for verifying host keys before
1606 accepting the RSA key.
1608 This can be circumvented by setting the "HostKeyAlgorithms"
1609 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
1612 Please note that the sequence of keys offered for
1613 authentication has been changed as well. You may want to
1614 specify IdentityFile in a different order to revert this
1618 The sio(4) driver has been removed from the i386 and amd64
1619 kernel configuration files. This means uart(4) is now the
1620 default serial port driver on those platforms as well.
1622 To prevent collisions with the sio(4) driver, the uart(4) driver
1623 uses different names for its device nodes. This means the
1624 onboard serial port will now most likely be called "ttyu0"
1625 instead of "ttyd0". You may need to reconfigure applications to
1626 use the new device names.
1628 When using the serial port as a boot console, be sure to update
1629 /boot/device.hints and /etc/ttys before booting the new kernel.
1630 If you forget to do so, you can still manually specify the hints
1631 at the loader prompt:
1633 set hint.uart.0.at="isa"
1634 set hint.uart.0.port="0x3F8"
1635 set hint.uart.0.flags="0x10"
1636 set hint.uart.0.irq="4"
1640 The gpt(8) utility has been removed. Use gpart(8) to partition
1644 The version that Linuxulator emulates was changed from 2.4.2
1645 to 2.6.16. If you experience any problems with Linux binaries
1646 please try to set sysctl compat.linux.osrelease to 2.4.2 and
1647 if it fixes the problem contact emulation mailing list.
1650 ISDN4BSD (I4B) was removed from the src tree. You may need to
1651 update a your kernel configuration and remove relevant entries.
1654 I have checked in code to support multiple routing tables.
1655 See the man pages setfib(1) and setfib(2).
1656 This is a hopefully backwards compatible version,
1657 but to make use of it you need to compile your kernel
1658 with options ROUTETABLES=2 (or more up to 16).
1661 The 802.11 wireless support was redone to enable multi-bss
1662 operation on devices that are capable. The underlying device
1663 is no longer used directly but instead wlanX devices are
1664 cloned with ifconfig. This requires changes to rc.conf files.
1665 For example, change:
1666 ifconfig_ath0="WPA DHCP"
1669 ifconfig_wlan0="WPA DHCP"
1670 see rc.conf(5) for more details. In addition, mergemaster of
1671 /etc/rc.d is highly recommended. Simultaneous update of userland
1672 and kernel wouldn't hurt either.
1674 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
1675 modules were merged into the base wlan module. All references
1676 to these modules (e.g. in kernel config files) must be removed.
1679 psm(4) has gained write(2) support in native operation level.
1680 Arbitrary commands can be written to /dev/psm%d and status can
1681 be read back from it. Therefore, an application is responsible
1682 for status validation and error recovery. It is a no-op in
1683 other operation levels.
1686 Support for KSE threading has been removed from the kernel. To
1687 run legacy applications linked against KSE libmap.conf may
1688 be used. The following libmap.conf may be used to ensure
1689 compatibility with any prior release:
1691 libpthread.so.1 libthr.so.1
1692 libpthread.so.2 libthr.so.2
1693 libkse.so.3 libthr.so.3
1696 The layout of struct vmspace has changed. This affects libkvm
1697 and any executables that link against libkvm and use the
1698 kvm_getprocs() function. In particular, but not exclusively,
1699 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
1700 The effects are minimal, but it's advisable to upgrade world
1704 The latest em driver no longer has support in it for the
1705 82575 adapter, this is now moved to the igb driver. The
1706 split was done to make new features that are incompatible
1707 with older hardware easier to do.
1710 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
1711 likewise the kernel option is now GEOM_LINUX_LVM.
1714 The default NFS mount mode has changed from UDP to TCP for
1715 increased reliability. If you rely on (insecurely) NFS
1716 mounting across a firewall you may need to update your
1720 Belatedly note the addition of m_collapse for compacting
1724 The fts(3) structures have been changed to use adequate
1725 integer types for their members and so to be able to cope
1726 with huge file trees. The old fts(3) ABI is preserved
1727 through symbol versioning in libc, so third-party binaries
1728 using fts(3) should still work, although they will not take
1729 advantage of the extended types. At the same time, some
1730 third-party software might fail to build after this change
1731 due to unportable assumptions made in its source code about
1732 fts(3) structure members. Such software should be fixed
1733 by its vendor or, in the worst case, in the ports tree.
1734 FreeBSD_version 800015 marks this change for the unlikely
1735 case that a portable fix is impossible.
1738 To upgrade to -current after this date, you must be running
1739 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
1740 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
1743 The ADAPTIVE_GIANT kernel option has been retired because its
1744 functionality is the default now.
1747 The AT keyboard emulation of sunkbd(4) has been turned on
1748 by default. In order to make the special symbols of the Sun
1749 keyboards driven by sunkbd(4) work under X these now have
1750 to be configured the same way as Sun USB keyboards driven
1751 by ukbd(4) (which also does AT keyboard emulation), f.e.:
1753 Option "XkbLayout" "us"
1754 Option "XkbRules" "xorg"
1755 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
1758 It has been decided that it is desirable to provide ABI
1759 backwards compatibility to the FreeBSD 4/5/6 versions of the
1760 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
1761 broken with the introduction of PCI domain support (see the
1762 20070930 entry). Unfortunately, this required the ABI of
1763 PCIOCGETCONF to be broken again in order to be able to
1764 provide backwards compatibility to the old version of that
1765 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
1766 again. As for prominent ports this affects neither pciutils
1767 nor xorg-server this time, the hal port needs to be rebuilt
1771 The misnamed kthread_create() and friends have been renamed
1772 to kproc_create() etc. Many of the callers already
1773 used kproc_start()..
1774 I will return kthread_create() and friends in a while
1775 with implementations that actually create threads, not procs.
1776 Renaming corresponds with version 800002.
1785 Avoid using make -j when upgrading. While generally safe, there are
1786 sometimes problems using -j to upgrade. If your upgrade fails with
1787 -j, please try again without -j. From time to time in the past there
1788 have been problems using -j with buildworld and/or installworld. This
1789 is especially true when upgrading between "distant" versions (eg one
1790 that cross a major release boundary or several minor releases, or when
1791 several months have passed on the -current branch).
1793 Sometimes, obscure build problems are the result of environment
1794 poisoning. This can happen because the make utility reads its
1795 environment when searching for values for global variables. To run
1796 your build attempts in an "environmental clean room", prefix all make
1797 commands with 'env -i '. See the env(1) manual page for more details.
1799 When upgrading from one major version to another it is generally best
1800 to upgrade to the latest code in the currently installed branch first,
1801 then do an upgrade to the new branch. This is the best-tested upgrade
1802 path, and has the highest probability of being successful. Please try
1803 this approach before reporting problems with a major version upgrade.
1807 When upgrading the boot ZFS pool to a new version, always follow
1810 1.) recompile and reinstall the ZFS boot loader and boot block
1811 (this is part of "make buildworld" and "make installworld")
1813 2.) update the ZFS boot block on your boot drive
1815 The following example updates the ZFS boot block on the first
1816 partition (freebsd-boot) of a GPT partitioned drive ad0:
1817 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0"
1819 Non-boot pools do not need these updates.
1823 If you are updating from a prior version of FreeBSD (even one just
1824 a few days old), you should follow this procedure. It is the most
1825 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
1827 make kernel-toolchain
1828 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
1829 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
1831 To test a kernel once
1832 ---------------------
1833 If you just want to boot a kernel once (because you are not sure
1834 if it works, or if you want to boot a known bad kernel to provide
1835 debugging information) run
1836 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
1837 nextboot -k testkernel
1839 To just build a kernel when you know that it won't mess you up
1840 --------------------------------------------------------------
1841 This assumes you are already running a CURRENT system. Replace
1842 ${arch} with the architecture of your machine (e.g. "i386",
1843 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc).
1845 cd src/sys/${arch}/conf
1846 config KERNEL_NAME_HERE
1847 cd ../compile/KERNEL_NAME_HERE
1852 If this fails, go to the "To build a kernel" section.
1854 To rebuild everything and install it on the current system.
1855 -----------------------------------------------------------
1856 # Note: sometimes if you are running current you gotta do more than
1857 # is listed here if you are upgrading from a really old current.
1859 <make sure you have good level 0 dumps>
1861 make kernel KERNCONF=YOUR_KERNEL_HERE
1863 <reboot in single user> [3]
1871 To cross-install current onto a separate partition
1872 --------------------------------------------------
1873 # In this approach we use a separate partition to hold
1874 # current's root, 'usr', and 'var' directories. A partition
1875 # holding "/", "/usr" and "/var" should be about 2GB in
1878 <make sure you have good level 0 dumps>
1881 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1882 <maybe newfs current's root partition>
1883 <mount current's root partition on directory ${CURRENT_ROOT}>
1884 make installworld DESTDIR=${CURRENT_ROOT}
1885 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1886 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1887 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
1888 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1889 <reboot into current>
1890 <do a "native" rebuild/install as described in the previous section>
1891 <maybe install compatibility libraries from ports/misc/compat*>
1895 To upgrade in-place from stable to current
1896 ----------------------------------------------
1897 <make sure you have good level 0 dumps>
1899 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
1901 <reboot in single user> [3]
1908 Make sure that you've read the UPDATING file to understand the
1909 tweaks to various things you need. At this point in the life
1910 cycle of current, things change often and you are on your own
1911 to cope. The defaults can also change, so please read ALL of
1912 the UPDATING entries.
1914 Also, if you are tracking -current, you must be subscribed to
1915 freebsd-current@freebsd.org. Make sure that before you update
1916 your sources that you have read and understood all the recent
1917 messages there. If in doubt, please track -stable which has
1918 much fewer pitfalls.
1920 [1] If you have third party modules, such as vmware, you
1921 should disable them at this point so they don't crash your
1924 [3] From the bootblocks, boot -s, and then do
1929 adjkerntz -i # if CMOS is wall time
1930 Also, when doing a major release upgrade, it is required that
1931 you boot into single user mode to do the installworld.
1933 [4] Note: This step is non-optional. Failure to do this step
1934 can result in a significant reduction in the functionality of the
1935 system. Attempting to do it by hand is not recommended and those
1936 that pursue this avenue should read this file carefully, as well
1937 as the archives of freebsd-current and freebsd-hackers mailing lists
1938 for potential gotchas. The -U option is also useful to consider.
1939 See mergemaster(8) for more information.
1941 [5] Usually this step is a noop. However, from time to time
1942 you may need to do this if you get unknown user in the following
1943 step. It never hurts to do it all the time. You may need to
1944 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1945 install) after the buildworld before this step if you last updated
1946 from [78]-stable or 9-stable before 20130430.
1948 [6] This only deletes old files and directories. Old libraries
1949 can be deleted by "make delete-old-libs", but you have to make
1950 sure that no program is using those libraries anymore.
1952 [8] In order to have a kernel that can run the 4.x binaries needed to
1953 do an installworld, you must include the COMPAT_FREEBSD4 option in
1954 your kernel. Failure to do so may leave you with a system that is
1955 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is
1956 required to run the 5.x binaries on more recent kernels. And so on
1957 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7.
1959 Make sure that you merge any new devices from GENERIC since the
1960 last time you updated your kernel config file.
1962 [9] When checking out sources, you must include the -P flag to have
1963 cvs prune empty directories.
1965 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1966 "?=" instead of the "=" assignment operator, so that buildworld can
1967 override the CPUTYPE if it needs to.
1969 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1970 not on the command line, or in /etc/make.conf. buildworld will
1971 warn if it is improperly defined.
1974 This file contains a list, in reverse chronological order, of major
1975 breakages in tracking -current. It is not guaranteed to be a complete
1976 list of such breakages, and only contains entries since October 10, 2007.
1977 If you need to see UPDATING entries from before that date, you will need
1978 to fetch an UPDATING file from an older FreeBSD release.
1980 Copyright information:
1982 Copyright 1998-2009 M. Warner Losh. All Rights Reserved.
1984 Redistribution, publication, translation and use, with or without
1985 modification, in full or in part, in any form or format of this
1986 document are permitted without further permission from the author.
1988 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1989 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1990 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1991 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1992 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1993 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1994 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1995 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1996 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1997 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1998 POSSIBILITY OF SUCH DAMAGE.
2000 Contact Warner Losh if you have any questions about your use of
projects / FreeBSD / releng / 9.3.git / blob