1 Updating Information for FreeBSD current users
3 This file is maintained and copyrighted by M. Warner Losh
4 <imp@village.org>. See end of file for further details. For commonly
5 done items, please see the COMMON ITEMS: section later in the file.
7 Items affecting the ports and packages system can be found in
8 /usr/ports/UPDATING. Please read that file before running
11 NOTE TO PEOPLE WHO THINK THAT FreeBSD 8.x IS SLOW:
12 FreeBSD 8.x has many debugging features turned on, in
13 both the kernel and userland. These features attempt to detect
14 incorrect use of system primitives, and encourage loud failure
15 through extra sanity checking and fail stop semantics. They
16 also substantially impact system performance. If you want to
17 do performance measurement, benchmarking, and optimization,
18 you'll want to turn them off. This includes various WITNESS-
19 related kernel options, INVARIANTS, malloc debugging flags
20 in userland, and various verbose features in the kernel. Many
21 developers choose to disable these features on build machines
22 to maximize performance. (To disable malloc debugging, run
23 ln -s aj /etc/malloc.conf.)
26 The version that Linuxulator emulates was changed from 2.4.2
27 to 2.6.16. If you experience any problems with Linux binaries
28 please try to set sysctl compat.linux.osrelease to 2.4.2 and
29 if it fixes the problem contact emulation mailing list.
32 ISDN4BSD (I4B) was removed from the src tree. You may need to
33 update a your kernel configuration and remove relevant entries.
36 I have checked in code to support multiple routing tables.
37 see the man pages setfib(1) and setfib(2).
38 This is a hopefully backwards compatible version,
39 but to make use of it you need to compile your kernel
40 with options ROUTETABLES=2 (or more up to 16).
43 The 802.11 wireless support was redone to enable multi-bss
44 operation on devices that are capable. The underlying device
45 is no longer used directly but instead wlanX devices are
46 cloned with ifconfig. This requires changes to rc.conf files.
48 ifconfig_ath0="WPA DHCP"
51 ifconfig_wlan0="WPA DHCP"
52 see rc.conf(5) for more details. In addition, mergemaster of
53 /etc/rc.d is highly recommended. Simultaneous update of userland
54 and kernel wouldn't hurt either.
56 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
57 modules were merged into the base wlan module. All references
58 to these modules (e.g. in kernel config files) must be removed.
61 psm(4) has gained write(2) support in native operation level.
62 Arbitrary commands can be written to /dev/psm%d and status can
63 be read back from it. Therefore, an application is responsible
64 for status validation and error recovery. It is a no-op in
65 other operation levels.
68 Support for KSE threading has been removed from the kernel. To
69 run legacy applications linked against KSE libmap.conf may
70 be used. The following libmap.conf may be used to ensure
71 compatibility with any prior release:
73 libpthread.so.1 libthr.so.1
74 libpthread.so.2 libthr.so.2
75 libkse.so.3 libthr.so.3
78 The layout of struct vmspace has changed. This affects libkvm
79 and any executables that link against libkvm and use the
80 kvm_getprocs() function. In particular, but not exclusively,
81 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
82 The effects are minimal, but it's advisable to upgrade world
86 The latest em driver no longer has support in it for the
87 82575 adapter, this is now moved to the igb driver. The
88 split was done to make new features that are incompatible
89 with older hardware easier to do.
92 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
93 likewise the kernel option is now GEOM_LINUX_LVM.
96 The default NFS mount mode has changed from UDP to TCP for
97 increased reliability. If you rely on (insecurely) NFS
98 mounting across a firewall you may need to update your
102 Belatedly note the addition of m_collapse for compacting
106 The fts(3) structures have been changed to use adequate
107 integer types for their members and so to be able to cope
108 with huge file trees. The old fts(3) ABI is preserved
109 through symbol versioning in libc, so third-party binaries
110 using fts(3) should still work, although they will not take
111 advantage of the extended types. At the same time, some
112 third-party software might fail to build after this change
113 due to unportable assumptions made in its source code about
114 fts(3) structure members. Such software should be fixed
115 by its vendor or, in the worst case, in the ports tree.
116 FreeBSD_version 800015 marks this change for the unlikely
117 case that a portable fix is impossible.
120 To upgrade to -current after this date, you must be running
121 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
122 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
125 The ADAPTIVE_GIANT kernel option has been retired because its
126 functionality is the default now.
129 The AT keyboard emulation of sunkbd(4) has been turned on
130 by default. In order to make the special symbols of the Sun
131 keyboards driven by sunkbd(4) work under X these now have
132 to be configured the same way as Sun USB keyboards driven
133 by ukbd(4) (which also does AT keyboard emulation), f.e.:
135 Option "XkbLayout" "us"
136 Option "XkbRules" "xorg"
137 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
140 It has been decided that it is desirable to provide ABI
141 backwards compatibility to the FreeBSD 4/5/6 versions of the
142 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
143 broken with the introduction of PCI domain support (see the
144 20070930 entry). Unfortunately, this required the ABI of
145 PCIOCGETCONF to be broken again in order to be able to
146 provide backwards compatibility to the old version of that
147 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
148 again. As for prominent ports this affects neither pciutils
149 nor xorg-server this time, the hal port needs to be rebuilt
153 The misnamed kthread_create() and friends have been renamed
154 to kproc_create() etc. Many of the callers already
156 I will return kthread_create() and friends in a while
157 with implementations that actually create threads, not procs.
158 Renaming corresponds with version 800002.
164 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
165 WITHOUT_LIBTHR are set.
168 The PCI code has been made aware of PCI domains. This means that
169 the location strings as used by pciconf(8) etc are now in the
170 following format: pci<domain>:<bus>:<device>[:<function>]. It
171 also means that consumers of <sys/pciio.h> potentially need to
172 be recompiled; this includes the hal and xorg-server ports.
175 The caching daemon (cached) was renamed to nscd. nscd.conf
176 configuration file should be used instead of cached.conf and
177 nscd_enable, nscd_pidfile and nscd_flags options should be used
178 instead of cached_enable, cached_pidfile and cached_flags in
182 The getfacl(1) utility now prints owning user and group name
183 instead of owning uid and gid in the three line comment header.
184 This is the same behavior as getfacl(1) on Solaris and Linux.
187 The new IPsec code is now compiled in using the IPSEC option. The
188 IPSEC option now requires "device crypto" be defined in your kernel
189 configuration. The FAST_IPSEC kernel option is now deprecated.
192 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
193 note the changed syntax - keep state is now on by default. Also
194 note the fact that ftp-proxy(8) has been changed from bottom up and
195 has been moved from libexec to usr/sbin. Changes in the ALTQ
196 handling also affect users of IPFW's ALTQ capabilities.
199 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
200 only IPsec supported by FreeBSD. The new IPsec stack
201 supports both IPv4 and IPv6. The kernel option will change
202 after the code changes have settled in. For now the kernel
203 option IPSEC is deprecated and FAST_IPSEC is the only option, that
204 will change after some settling time.
207 The wicontrol(8) utility has been removed from the base system. wi(4)
208 cards should be configured using ifconfig(8), see the man page for more
212 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
213 instead of the nve(4) driver. Please update your configuration
217 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
218 database if it is missing or older than the aliases file. If
219 desired, set the new rc.conf option sendmail_rebuild_aliases
220 to "YES" to restore that functionality.
223 The IPv4 multicast socket code has been considerably modified, and
224 moved to the file sys/netinet/in_mcast.c. Initial support for the
225 RFC 3678 Source-Specific Multicast Socket API has been added to
226 the IPv4 network stack.
228 Strict multicast and broadcast reception is now the default for
229 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
230 has now been removed.
232 The RFC 1724 hack for interface selection has been removed; the use
233 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
234 been added to replace it. Consumers such as routed will soon be
235 updated to reflect this.
237 These changes affect users who are running routed(8) or rdisc(8)
238 from the FreeBSD base system on point-to-point or unnumbered
242 The net80211 layer has changed significantly and all wireless
243 drivers that depend on it need to be recompiled. Further these
244 changes require that any program that interacts with the wireless
245 support in the kernel be recompiled; this includes: ifconfig,
246 wpa_supplicant, hostapd, and wlanstats. Users must also, for
247 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
248 if they use modules for wireless support. These modules implement
249 scanning support for station and ap modes, respectively. Failure
250 to load the appropriate module before marking a wireless interface
251 up will result in a message to the console and the device not
255 The pam_nologin(8) module ceases to provide an authentication
256 function and starts providing an account management function.
257 Consequent changes to /etc/pam.d should be brought in using
258 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
259 need manual editing as follows. Locate this line (or similar):
261 auth required pam_nologin.so no_warn
263 and change it according to this example:
265 account required pam_nologin.so no_warn
267 That is, the first word needs to be changed from "auth" to
268 "account". The new line can be moved to the account section
269 within the file for clarity. Not updating pam.conf(5) files
270 will result in nologin(5) ignored by the respective services.
273 The ether_ioctl() function has been synchronized with ioctl(2)
274 and ifnet.if_ioctl. Due to that, the size of one of its arguments
275 has changed on 64-bit architectures. All kernel modules using
276 ether_ioctl() need to be rebuilt on such architectures.
279 Improved INCLUDE_CONFIG_FILE support has been introduced to the
280 config(8) utility. In order to take advantage of this new
281 functionality, you are expected to recompile and install
282 src/usr.sbin/config. If you don't rebuild config(8), and your
283 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
284 build will be broken because of a missing "kernconfstring"
288 Symbol versioning is enabled by default. To disable it, use
289 option WITHOUT_SYMVER. It is not advisable to attempt to
290 disable symbol versioning once it is enabled; your installworld
291 will break because a symbol version-less libc will get installed
292 before the install tools. As a result, the old install tools,
293 which previously had symbol dependencies to FBSD_1.0, will fail
294 because the freshly installed libc will not have them.
296 The default threading library (providing "libpthread") has been
297 changed to libthr. If you wish to have libkse as your default,
298 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
301 The ABI breakage in sendmail(8)'s libmilter has been repaired
302 so it is no longer necessary to recompile mail filters (aka,
303 milters). If you recompiled mail filters after the 20070408
304 note, it is not necessary to recompile them again.
307 The new trunk(4) driver has been renamed to lagg(4) as it better
308 reflects its purpose. ifconfig will need to be recompiled.
311 sendmail(8) has been updated to version 8.14.1. Mail filters
312 (aka, milters) compiled against the libmilter included in the
313 base operating system should be recompiled.
316 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
317 In order to use them one must agree to the respective LICENSE in
318 share/doc/legal and define legal.intel_<name>.license_ack=1 via
319 loader.conf(5) or kenv(1). Make sure to deinstall the now
320 deprecated modules from the respective firmware ports.
323 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
324 were removed from FreeBSD's libc. These originally came from INRIA
325 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
326 deprecated in previous releases.
327 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
328 replace it as a more portable (and re-entrant) API.
331 To support interrupt filtering a modification to the newbus API
332 has occurred, ABI was broken and __FreeBSD_version was bumped
333 to 700031. Please make sure that your kernel and modules are in
335 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
338 The IPv6 multicast forwarding code may now be loaded into GENERIC
339 kernels by loading the ip_mroute.ko module. This is built into the
340 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
341 set; see src.conf(5) for more information.
344 The output of netstat -r has changed. Without -n, we now only
345 print a "network name" without the prefix length if the network
346 address and mask exactly match a Class A/B/C network, and an entry
347 exists in the nsswitch "networks" map.
348 With -n, we print the full unabbreviated CIDR network prefix in
349 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
350 This change is in preparation for changes such as equal-cost
351 multipath, and to more generally assist operational deployment
352 of FreeBSD as a modern IPv4 router.
355 PIM has been turned on by default in the IPv4 multicast
356 routing code. The kernel option 'PIM' has now been removed.
357 PIM is now built by default if option 'MROUTING' is specified.
358 It may now be loaded into GENERIC kernels by loading the
362 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
363 has been removed. Its functionality may be achieved by explicitly
364 configuring gif(4) interfaces and using the 'phyint' keyword in
366 XORP does not support source-routed IPv4 multicast tunnels nor the
367 integrated IPIP tunneling, therefore it is not affected by this
368 change. The __FreeBSD_version macro has been bumped to 700030.
371 Support for PCI Message Signalled Interrupts has been
372 re-enabled in the bge driver, only for those chips which are
373 believed to support it properly. If there are any problems,
374 MSI can be disabled completely by setting the
375 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
379 Support for PCI Message Signalled Interrupts has been
380 disabled again in the bge driver. Many revisions of the
381 hardware fail to support it properly. Support can be
382 re-enabled by removing the #define of BGE_DISABLE_MSI in
383 "src/sys/dev/bge/if_bge.c".
386 Support for PCI Message Signalled Interrupts has been added
387 to the bge driver. If there are any problems, MSI can be
388 disabled completely by setting the 'hw.pci.enable_msi' and
389 'hw.pci.enable_msix' tunables to 0 in the loader.
392 The removal of several facets of the experimental Threading
393 system from the kernel means that the proc and thread structures
394 have changed quite a bit. I suggest all kernel modules that might
395 reference these structures be recompiled.. Especially the
399 Sound infrastructure has been updated with various fixes and
400 improvements. Most of the changes are pretty much transparent,
401 with exceptions of followings:
402 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
403 moved to their own dev sysctl nodes, for example:
404 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
405 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
406 own chardev in the form of "dsp%d.<function>%d", where <function>
407 is p = playback, r = record and v = virtual, respectively. Users
408 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
409 This does not affect those who are using "/dev/dsp".
412 The following binaries have been disconnected from the build:
413 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
414 and mount_std. The functionality of these programs has been
415 moved into the mount program. For example, to mount a devfs
416 filesystem, instead of using mount_devfs, use: "mount -t devfs".
417 This does not affect entries in /etc/fstab, since entries in
418 /etc/fstab are always processed with "mount -t fstype".
421 Support for PCI Message Signalled Interrupts on i386 and amd64
422 has been added to the kernel and various drivers will soon be
423 updated to use MSI when it is available. If there are any problems,
424 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
425 and 'hw.pci.enable_msix' tunables to 0 in the loader.
428 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
429 The lockmgr object layout has been changed as a result of having
430 a lock_object embedded in it. As a consequence all file system
431 kernel modules must be re-compiled. The mutex profiling man page
432 has not yet been updated to reflect this change.
435 KSE in the kernel has now been made optional and turned on by
436 default. Use 'nooption KSE' in your kernel config to turn it
437 off. All kernel modules *must* be recompiled after this change.
438 There-after, modules from a KSE kernel should be compatible with
439 modules from a NOKSE kernel due to the temporary padding fields
440 added to 'struct proc'.
443 mrouted and its utilities have been removed from the base system.
446 Some ioctl(2) command codes have changed. Full backward ABI
447 compatibility is provided if the "options COMPAT_FREEBSD6" is
448 present in the kernel configuration file. Make sure to add
449 this option to your kernel config file, or recompile X.Org
450 and the rest of ports; otherwise they may refuse to work.
453 tcpslice has been removed from the base system.
456 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
457 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
458 systat needs to be rebuilt.
461 libpcap updated to v0.9.4 and tcpdump to v3.9.4
464 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
465 for IPFIREWALL_FORWARD is now as it was before when it was first
466 committed and for years after. The behaviour is now ON.
469 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
470 Now it can decrypt files created from different architectures.
471 Unfortunately, it is no longer able to decrypt a cipher text
472 generated with an older version on 64 bit architectures.
473 If you have such a file, you need old utility to decrypt it.
476 The interface version of the i4b kernel part has changed. So
477 after updating the kernel sources and compiling a new kernel,
478 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
479 be rebuilt, and vice versa.
482 The XBOX kernel now defaults to the nfe(4) driver instead of
483 the nve(4) driver. Please update your configuration
487 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
488 PCnet family of NICs has been removed. The new le(4) driver serves
489 as an equivalent but cross-platform replacement with the pcn(4)
490 driver still providing performance-optimized support for the subset
491 of AMD Am79C971 PCnet-FAST and greater chips as before.
494 The machdep.* sysctls and the adjkerntz utility have been
495 modified a bit. The new adjkerntz utility uses the new
496 sysctl names and sysctlbyname() calls, so it may be impossible
497 to run an old /sbin/adjkerntz utility in single-user mode
498 with a new kernel. Replace the `adjkerntz -i' step before
499 `make installworld' with:
501 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
503 and proceed as usual with the rest of the installworld-stage
504 steps. Otherwise, you risk installing binaries with their
505 timestamp set several hours in the future, especially if
506 you are running with local time set to GMT+X hours.
509 The ip6fw utility has been removed. The behavior provided by
510 ip6fw has been in ipfw2 for a good while and the rc.d scripts
511 have been updated to deal with it. There are some rules that
512 might not migrate cleanly. Use rc.firewall6 as a template to
516 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
517 attachments have been removed. Make sure to configure scc(4)
518 on sparc64. Note also that by default puc(4) will use uart(4)
519 and not sio(4) for serial ports because interrupt handling has
520 been optimized for multi-port serial cards and only uart(4)
521 implements the interface to support it.
524 The scc(4) driver replaces puc(4) for Serial Communications
525 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
526 Z8530. On sparc64, it is advised to add scc(4) to the kernel
527 configuration to make sure that the serial ports remain
531 Most world/kernel related NO_* build options changed names.
532 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
533 after FreeBSD ports) and should be set in /etc/src.conf
534 (the src.conf(5) manpage is provided). Full backwards
535 compatibility is maintained for the time being though it's
536 highly recommended to start moving old options out of the
537 system-wide /etc/make.conf file into the new /etc/src.conf
538 while also properly renaming them. More conversions will
539 likely follow. Posting to current@:
541 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
544 The NETSMBCRYPTO kernel option has been retired because its
545 functionality is always included in NETSMB and smbfs.ko now.
548 The TDFX_LINUX kernel option was retired and replaced by the
549 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
550 kernel module. Loading it alone should suffice to get 3dfx support
551 for Linux apps because it will pull in 3dfx.ko and linux.ko through
555 The 'audit' group was added to support the new auditing functionality
556 in the base system. Be sure to follow the directions for updating,
557 including the requirement to run mergemaster -p.
560 The kernel ABI to file system modules was changed on i386.
561 Please make sure that your kernel and modules are in sync.
564 This actually occured some time ago, but installing the kernel
565 now also installs a bunch of symbol files for the kernel modules.
566 This increases the size of /boot/kernel to about 67Mbytes. You
567 will need twice this if you will eventually back this up to kernel.old
568 on your next install.
569 If you have a shortage of room in your root partition, you should add
570 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
571 to your /etc/make.conf.
574 libc's malloc implementation has been replaced. This change has the
575 potential to uncover application bugs that previously went unnoticed.
576 See the malloc(3) manual page for more details.
579 The generic netgraph(4) cookie has been changed. If you upgrade
580 kernel passing this point, you also need to upgrade userland
581 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
584 si(4)'s device files now contain the unit number.
585 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
588 The kernel ABI was mostly destroyed due to a change in the size
589 of struct lock_object which is nested in other structures such
590 as mutexes which are nested in all sorts of other structures.
591 Make sure your kernel and modules are in sync.
594 The page coloring algorithm in the VM subsystem was converted
595 from tuning with kernel options to autotuning. Please remove
596 any PQ_* option except PQ_NOOPT from your kernel config.
599 The net80211-related tools in the tools/tools/ath directory
600 have been moved to tools/tools/net80211 and renamed with a
601 "wlan" prefix. Scripts that use them should be adjusted
605 Scripts in the local_startup directories (as defined in
606 /etc/defaults/rc.conf) that have the new rc.d semantics will
607 now be run as part of the base system rcorder. If there are
608 errors or problems with one of these local scripts, it could
609 cause boot problems. If you encounter such problems, boot in
610 single user mode, remove that script from the */rc.d directory.
611 Please report the problem to the port's maintainer, and the
612 freebsd-ports@freebsd.org mailing list.
615 The nodev mount option was deprecated in RELENG_6 (where it
616 was a no-op), and is now unsupported. If you have nodev or dev listed
617 in /etc/fstab, remove it, otherwise it will result in a mount error.
620 ABI between ipfw(4) and ipfw(8) has been changed. You need
621 to rebuild ipfw(8) when rebuilding kernel.
624 rp(4)'s device files now contain the unit number.
625 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
628 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
629 Its /etc/rc.conf.d configuration file has been `ppp' from
630 the beginning, and hence there is no need to touch it.
633 Now most modules get their build-time options from the kernel
634 configuration file. A few modules still have fixed options
635 due to their non-conformant implementation, but they will be
636 corrected eventually. You may need to review the options of
637 the modules in use, explicitly specify the non-default options
638 in the kernel configuration file, and rebuild the kernel and
642 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
643 to turn polling(4) on your interfaces.
646 The old bridge(4) implementation was retired. The new
647 if_bridge(4) serves as a full functional replacement.
650 The ai_addrlen of a struct addrinfo was changed to a socklen_t
651 to conform to POSIX-2001. This change broke an ABI
652 compatibility on 64 bit architecture. You have to recompile
653 userland programs that use getaddrinfo(3) on 64 bit
657 RELENG_6 branched here.
660 The pccard_ifconfig rc.conf variable has been removed and a new
661 variable, ifconfig_DEFAULT has been introduced. Unlike
662 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
663 do not have ifconfig_ifn entries rather than just those in
664 removable_interfaces.
667 Some previous versions of PAM have permitted the use of
668 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
669 to third party PAM modules in /usr/local/lib. A change has been
670 made to require the use of absolute paths in order to avoid
671 ambiguity and dependence on library path configuration, which may
672 affect existing configurations.
675 Major changes to network interface API. All drivers must be
676 recompiled. Drivers not in the base system will need to be
677 updated to the new APIs.
680 Changes were made to kinfo_proc in sys/user.h. Please recompile
681 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
682 will not behave correctly.
684 The API and ABI for hwpmc(4) have changed with the addition
685 of sampling support. Please recompile lib/libpmc(3) and
686 usr.sbin/{pmcstat,pmccontrol}.
689 The OpenBSD dhclient was imported in place of the ISC dhclient
690 and the network interface configuration scripts were updated
691 accordingly. If you use DHCP to configure your interfaces, you
692 must now run devd. Also, DNS updating was lost so you will need
693 to find a workaround if you use this feature.
695 The '_dhcp' user was added to support the OpenBSD dhclient. Be
696 sure to run mergemaster -p (like you are supposed to do every time
700 if_bridge was added to the tree. This has changed struct ifnet.
701 Please recompile userland and all network related modules.
704 The n_net of a struct netent was changed to an uint32_t, and
705 1st argument of getnetbyaddr() was changed to an uint32_t, to
706 conform to POSIX-2001. These changes broke an ABI
707 compatibility on 64 bit architecture. With these changes,
708 shlib major of libpcap was bumped. You have to recompile
709 userland programs that use getnetbyaddr(3), getnetbyname(3),
710 getnetent(3) and/or libpcap on 64 bit architecture.
713 Kernel parsing of extra options on '#!' first lines of shell
714 scripts has changed. Lines with multiple options likely will
715 fail after this date. For full details, please see
716 http://people.freebsd.org/~gad/Updating-20050528.txt
719 The packet filter (pf) code has been updated to OpenBSD 3.7
720 Please note the changed anchor syntax and the fact that
721 authpf(8) now needs a mounted fdescfs(5) to function.
724 The NO_MIXED_MODE kernel option has been removed from the i386
725 amd64 platforms as its use has been superceded by the new local
726 APIC timer code. Any kernel config files containing this option
730 The on-disk format of LC_CTYPE files was changed to be machine
731 independent. Please make sure NOT to use NO_CLEAN buildworld
732 when crossing this point. Crossing this point also requires
733 recompile or reinstall of all locale depended packages.
736 The ifi_epoch member of struct if_data has been changed to
737 contain the uptime at which the interface was created or the
738 statistics zeroed rather then the wall clock time because
739 wallclock time may go backwards. This should have no impact
740 unless an snmp implementation is using this value (I know of
744 The acpi_perf and acpi_throttle drivers are now part of the
745 acpi(4) main module. They are no longer built separately.
748 The layout of struct image_params has changed. You have to
749 recompile all compatibility modules (linux, svr4, etc) for use
753 The p4tcc driver has been merged into cpufreq(4). This makes
754 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
755 compile in "device cpufreq" to restore this functionality.
758 The responsibility of recomputing the file system summary of
759 a SoftUpdates-enabled dirty volume has been transferred to the
760 background fsck. A rebuild of fsck(8) utility is recommended
761 if you have updated the kernel.
763 To get the old behavior (recompute file system summary at mount
764 time), you can set vfs.ffs.compute_summary_at_mount=1 before
765 mounting the new volume.
768 The cpufreq import is complete. As part of this, the sysctls for
769 acpi(4) throttling have been removed. The power_profile script
770 has been updated, so you can use performance/economy_cpu_freq in
771 rc.conf(5) to set AC on/offline cpu frequencies.
774 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
775 requires recompiling libnetgraph and userland netgraph utilities.
778 Support for abbreviated forms of a number of ipfw options is
779 now deprecated. Warnings are printed to stderr indicating the
780 correct full form when a match occurs. Some abbreviations may
781 be supported at a later date based on user feedback. To be
782 considered for support, abbreviations must be in use prior to
783 this commit and unlikely to be confused with current key words.
786 By a popular demand, a lot of NOFOO options were renamed
787 to NO_FOO (see bsd.compat.mk for a full list). The old
788 spellings are still supported, but will cause annoying
789 warnings on stderr. Make sure you upgrade properly (see
790 the COMMON ITEMS: section later in this file).
793 Auto-loading of ancillary wlan modules such as wlan_wep has
794 been temporarily disabled; you need to statically configure
795 the modules you need into your kernel or explicitly load them
796 prior to use. Specifically, if you intend to use WEP encryption
797 with an 802.11 device load/configure wlan_wep; if you want to
798 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
799 and wlan_xauth as required.
802 The behaviour of ppp(8) has changed slightly. If lqr is enabled
803 (``enable lqr''), older versions would revert to LCP ECHO mode on
804 negotiation failure. Now, ``enable echo'' is required for this
805 behaviour. The ppp version number has been bumped to 3.4.2 to
809 The wlan support has been updated to split the crypto support
810 into separate modules. For static WEP you must configure the
811 wlan_wep module in your system or build and install the module
812 in place where it can be loaded (the kernel will auto-load
813 the module when a wep key is configured).
816 The ath driver has been updated to split the tx rate control
817 algorithm into a separate module. You need to include either
818 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
821 Support for systems with an 80386 CPU has been removed. Please
822 use FreeBSD 5.x or earlier on systems with an 80386.
825 We have had a hack which would mount the root filesystem
826 R/W if the device were named 'md*'. As part of the vnode
827 work I'm doing I have had to remove this hack. People
828 building systems which use preloaded MD root filesystems
829 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
830 their /etc/rc scripts.
833 FreeBSD 5.3 shipped here.
836 The size of struct tcpcb has changed again due to the removal
837 of RFC1644 T/TCP. You have to recompile userland programs that
838 read kmem for tcp sockets directly (netstat, sockstat, etc.)
841 The size of struct tcpcb has changed. You have to recompile
842 userland programs that read kmem for tcp sockets directly
843 (netstat, sockstat, etc.)
846 RELENG_5 branched here. For older entries, please see updating
847 in the RELENG_5 branch.
853 Avoid using make -j when upgrading. From time to time in the
854 past there have been problems using -j with buildworld and/or
855 installworld. This is especially true when upgrading between
856 "distant" versions (eg one that cross a major release boundary
857 or several minor releases, or when several months have passed
858 on the -current branch).
860 Sometimes, obscure build problems are the result of environment
861 poisoning. This can happen because the make utility reads its
862 environment when searching for values for global variables.
863 To run your build attempts in an "environmental clean room",
864 prefix all make commands with 'env -i '. See the env(1) manual
865 page for more details.
867 When upgrading from one major version to another it is generally
868 best to upgrade to the latest code in the currently installed branch
869 first, then do an upgrade to the new branch. This is the best-tested
870 upgrade path, and has the highest probability of being successful.
871 Please try this approach before reporting problems with a major
876 If you are updating from a prior version of FreeBSD (even one just
877 a few days old), you should follow this procedure. It is the most
878 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
880 make kernel-toolchain
881 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
882 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
884 To test a kernel once
885 ---------------------
886 If you just want to boot a kernel once (because you are not sure
887 if it works, or if you want to boot a known bad kernel to provide
888 debugging information) run
889 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
890 nextboot -k testkernel
892 To just build a kernel when you know that it won't mess you up
893 --------------------------------------------------------------
894 This assumes you are already running a 5.X system. Replace
895 ${arch} with the architecture of your machine (e.g. "i386",
896 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
898 cd src/sys/${arch}/conf
899 config KERNEL_NAME_HERE
900 cd ../compile/KERNEL_NAME_HERE
905 If this fails, go to the "To build a kernel" section.
907 To rebuild everything and install it on the current system.
908 -----------------------------------------------------------
909 # Note: sometimes if you are running current you gotta do more than
910 # is listed here if you are upgrading from a really old current.
912 <make sure you have good level 0 dumps>
914 make kernel KERNCONF=YOUR_KERNEL_HERE
916 <reboot in single user> [3]
924 To cross-install current onto a separate partition
925 --------------------------------------------------
926 # In this approach we use a separate partition to hold
927 # current's root, 'usr', and 'var' directories. A partition
928 # holding "/", "/usr" and "/var" should be about 2GB in
931 <make sure you have good level 0 dumps>
934 make buildkernel KERNCONF=YOUR_KERNEL_HERE
935 <maybe newfs current's root partition>
936 <mount current's root partition on directory ${CURRENT_ROOT}>
937 make installworld DESTDIR=${CURRENT_ROOT}
938 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
939 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
940 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
941 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
942 <reboot into current>
943 <do a "native" rebuild/install as described in the previous section>
944 <maybe install compatibility libraries from src/lib/compat>
948 To upgrade in-place from 5.x-stable to current
949 ----------------------------------------------
950 <make sure you have good level 0 dumps>
952 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
954 <reboot in single user> [3]
961 Make sure that you've read the UPDATING file to understand the
962 tweaks to various things you need. At this point in the life
963 cycle of current, things change often and you are on your own
964 to cope. The defaults can also change, so please read ALL of
965 the UPDATING entries.
967 Also, if you are tracking -current, you must be subscribed to
968 freebsd-current@freebsd.org. Make sure that before you update
969 your sources that you have read and understood all the recent
970 messages there. If in doubt, please track -stable which has
973 [1] If you have third party modules, such as vmware, you
974 should disable them at this point so they don't crash your
977 [3] From the bootblocks, boot -s, and then do
982 adjkerntz -i # if CMOS is wall time
983 Also, when doing a major release upgrade, it is required that
984 you boot into single user mode to do the installworld.
986 [4] Note: This step is non-optional. Failure to do this step
987 can result in a significant reduction in the functionality of the
988 system. Attempting to do it by hand is not recommended and those
989 that pursue this avenue should read this file carefully, as well
990 as the archives of freebsd-current and freebsd-hackers mailing lists
991 for potential gotchas.
993 [5] Usually this step is a noop. However, from time to time
994 you may need to do this if you get unknown user in the following
995 step. It never hurts to do it all the time. You may need to
996 install a new mergemaster (cd src/usr.sbin/mergemaster && make
997 install) after the buildworld before this step if you last updated
998 from current before 20020224 or from -stable before 20020408.
1000 [8] In order to have a kernel that can run the 4.x binaries
1001 needed to do an installworld, you must include the COMPAT_FREEBSD4
1002 option in your kernel. Failure to do so may leave you with a system
1003 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
1004 is required to run the 5.x binaries on more recent kernels.
1006 Make sure that you merge any new devices from GENERIC since the
1007 last time you updated your kernel config file.
1009 [9] When checking out sources, you must include the -P flag to have
1010 cvs prune empty directories.
1012 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1013 "?=" instead of the "=" assignment operator, so that buildworld can
1014 override the CPUTYPE if it needs to.
1016 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1017 not on the command line, or in /etc/make.conf. buildworld will
1018 warn if it is improperly defined.
1021 This file contains a list, in reverse chronological order, of major
1022 breakages in tracking -current. Not all things will be listed here,
1023 and it only starts on October 16, 2004. Updating files can found in
1024 previous releases if your system is older than this.
1026 Copyright information:
1028 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
1030 Redistribution, publication, translation and use, with or without
1031 modification, in full or in part, in any form or format of this
1032 document are permitted without further permission from the author.
1034 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1035 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1036 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1037 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1038 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1039 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1040 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1041 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1042 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1043 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1044 POSSIBILITY OF SUCH DAMAGE.
1046 If you find this document useful, and you want to, you may buy the
1049 Contact Warner Losh if you have any questions about your use of