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 ISDN4BSD (I4B) was removed from the src tree. You may need to
27 update a your kernel configuration and remove relevant entries.
30 I have checked in code to support multiple routing tables.
31 see the man pages setfib(1) and setfib(2).
32 This is a hopefully backwards compatible version,
33 but to make use of it you need to compile your kernel
34 with options ROUTETABLES=2 (or more up to 16).
37 The 802.11 wireless support was redone to enable multi-bss
38 operation on devices that are capable. The underlying device
39 is no longer used directly but instead wlanX devices are
40 cloned with ifconfig. This requires changes to rc.conf files.
42 ifconfig_ath0="WPA DHCP"
45 ifconfig_wlan0="WPA DHCP"
46 see rc.conf(5) for more details. In addition, mergemaster of
47 /etc/rc.d is highly recommended. Simultaneous update of userland
48 and kernel wouldn't hurt either.
50 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
51 modules were merged into the base wlan module. All references
52 to these modules (e.g. in kernel config files) must be removed.
55 psm(4) has gained write(2) support in native operation level.
56 Arbitrary commands can be written to /dev/psm%d and status can
57 be read back from it. Therefore, an application is responsible
58 for status validation and error recovery. It is a no-op in
59 other operation levels.
62 Support for KSE threading has been removed from the kernel. To
63 run legacy applications linked against KSE libmap.conf may
64 be used. The following libmap.conf may be used to ensure
65 compatibility with any prior release:
67 libpthread.so.1 libthr.so.1
68 libpthread.so.2 libthr.so.2
69 libkse.so.3 libthr.so.3
72 The layout of struct vmspace has changed. This affects libkvm
73 and any executables that link against libkvm and use the
74 kvm_getprocs() function. In particular, but not exclusively,
75 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
76 The effects are minimal, but it's advisable to upgrade world
80 The latest em driver no longer has support in it for the
81 82575 adapter, this is now moved to the igb driver. The
82 split was done to make new features that are incompatible
83 with older hardware easier to do.
86 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
87 likewise the kernel option is now GEOM_LINUX_LVM.
90 The default NFS mount mode has changed from UDP to TCP for
91 increased reliability. If you rely on (insecurely) NFS
92 mounting across a firewall you may need to update your
96 Belatedly note the addition of m_collapse for compacting
100 The fts(3) structures have been changed to use adequate
101 integer types for their members and so to be able to cope
102 with huge file trees. The old fts(3) ABI is preserved
103 through symbol versioning in libc, so third-party binaries
104 using fts(3) should still work, although they will not take
105 advantage of the extended types. At the same time, some
106 third-party software might fail to build after this change
107 due to unportable assumptions made in its source code about
108 fts(3) structure members. Such software should be fixed
109 by its vendor or, in the worst case, in the ports tree.
110 FreeBSD_version 800015 marks this change for the unlikely
111 case that a portable fix is impossible.
114 To upgrade to -current after this date, you must be running
115 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
116 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
119 The ADAPTIVE_GIANT kernel option has been retired because its
120 functionality is the default now.
123 The AT keyboard emulation of sunkbd(4) has been turned on
124 by default. In order to make the special symbols of the Sun
125 keyboards driven by sunkbd(4) work under X these now have
126 to be configured the same way as Sun USB keyboards driven
127 by ukbd(4) (which also does AT keyboard emulation), f.e.:
129 Option "XkbLayout" "us"
130 Option "XkbRules" "xorg"
131 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
134 It has been decided that it is desirable to provide ABI
135 backwards compatibility to the FreeBSD 4/5/6 versions of the
136 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
137 broken with the introduction of PCI domain support (see the
138 20070930 entry). Unfortunately, this required the ABI of
139 PCIOCGETCONF to be broken again in order to be able to
140 provide backwards compatibility to the old version of that
141 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
142 again. As for prominent ports this affects neither pciutils
143 nor xorg-server this time, the hal port needs to be rebuilt
147 The misnamed kthread_create() and friends have been renamed
148 to kproc_create() etc. Many of the callers already
150 I will return kthread_create() and friends in a while
151 with implementations that actually create threads, not procs.
152 Renaming corresponds with version 800002.
158 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
159 WITHOUT_LIBTHR are set.
162 The PCI code has been made aware of PCI domains. This means that
163 the location strings as used by pciconf(8) etc are now in the
164 following format: pci<domain>:<bus>:<device>[:<function>]. It
165 also means that consumers of <sys/pciio.h> potentially need to
166 be recompiled; this includes the hal and xorg-server ports.
169 The caching daemon (cached) was renamed to nscd. nscd.conf
170 configuration file should be used instead of cached.conf and
171 nscd_enable, nscd_pidfile and nscd_flags options should be used
172 instead of cached_enable, cached_pidfile and cached_flags in
176 The getfacl(1) utility now prints owning user and group name
177 instead of owning uid and gid in the three line comment header.
178 This is the same behavior as getfacl(1) on Solaris and Linux.
181 The new IPsec code is now compiled in using the IPSEC option. The
182 IPSEC option now requires "device crypto" be defined in your kernel
183 configuration. The FAST_IPSEC kernel option is now deprecated.
186 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
187 note the changed syntax - keep state is now on by default. Also
188 note the fact that ftp-proxy(8) has been changed from bottom up and
189 has been moved from libexec to usr/sbin. Changes in the ALTQ
190 handling also affect users of IPFW's ALTQ capabilities.
193 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
194 only IPsec supported by FreeBSD. The new IPsec stack
195 supports both IPv4 and IPv6. The kernel option will change
196 after the code changes have settled in. For now the kernel
197 option IPSEC is deprecated and FAST_IPSEC is the only option, that
198 will change after some settling time.
201 The wicontrol(8) utility has been removed from the base system. wi(4)
202 cards should be configured using ifconfig(8), see the man page for more
206 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
207 instead of the nve(4) driver. Please update your configuration
211 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
212 database if it is missing or older than the aliases file. If
213 desired, set the new rc.conf option sendmail_rebuild_aliases
214 to "YES" to restore that functionality.
217 The IPv4 multicast socket code has been considerably modified, and
218 moved to the file sys/netinet/in_mcast.c. Initial support for the
219 RFC 3678 Source-Specific Multicast Socket API has been added to
220 the IPv4 network stack.
222 Strict multicast and broadcast reception is now the default for
223 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
224 has now been removed.
226 The RFC 1724 hack for interface selection has been removed; the use
227 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
228 been added to replace it. Consumers such as routed will soon be
229 updated to reflect this.
231 These changes affect users who are running routed(8) or rdisc(8)
232 from the FreeBSD base system on point-to-point or unnumbered
236 The net80211 layer has changed significantly and all wireless
237 drivers that depend on it need to be recompiled. Further these
238 changes require that any program that interacts with the wireless
239 support in the kernel be recompiled; this includes: ifconfig,
240 wpa_supplicant, hostapd, and wlanstats. Users must also, for
241 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
242 if they use modules for wireless support. These modules implement
243 scanning support for station and ap modes, respectively. Failure
244 to load the appropriate module before marking a wireless interface
245 up will result in a message to the console and the device not
249 The pam_nologin(8) module ceases to provide an authentication
250 function and starts providing an account management function.
251 Consequent changes to /etc/pam.d should be brought in using
252 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
253 need manual editing as follows. Locate this line (or similar):
255 auth required pam_nologin.so no_warn
257 and change it according to this example:
259 account required pam_nologin.so no_warn
261 That is, the first word needs to be changed from "auth" to
262 "account". The new line can be moved to the account section
263 within the file for clarity. Not updating pam.conf(5) files
264 will result in nologin(5) ignored by the respective services.
267 The ether_ioctl() function has been synchronized with ioctl(2)
268 and ifnet.if_ioctl. Due to that, the size of one of its arguments
269 has changed on 64-bit architectures. All kernel modules using
270 ether_ioctl() need to be rebuilt on such architectures.
273 Improved INCLUDE_CONFIG_FILE support has been introduced to the
274 config(8) utility. In order to take advantage of this new
275 functionality, you are expected to recompile and install
276 src/usr.sbin/config. If you don't rebuild config(8), and your
277 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
278 build will be broken because of a missing "kernconfstring"
282 Symbol versioning is enabled by default. To disable it, use
283 option WITHOUT_SYMVER. It is not advisable to attempt to
284 disable symbol versioning once it is enabled; your installworld
285 will break because a symbol version-less libc will get installed
286 before the install tools. As a result, the old install tools,
287 which previously had symbol dependencies to FBSD_1.0, will fail
288 because the freshly installed libc will not have them.
290 The default threading library (providing "libpthread") has been
291 changed to libthr. If you wish to have libkse as your default,
292 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
295 The ABI breakage in sendmail(8)'s libmilter has been repaired
296 so it is no longer necessary to recompile mail filters (aka,
297 milters). If you recompiled mail filters after the 20070408
298 note, it is not necessary to recompile them again.
301 The new trunk(4) driver has been renamed to lagg(4) as it better
302 reflects its purpose. ifconfig will need to be recompiled.
305 sendmail(8) has been updated to version 8.14.1. Mail filters
306 (aka, milters) compiled against the libmilter included in the
307 base operating system should be recompiled.
310 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
311 In order to use them one must agree to the respective LICENSE in
312 share/doc/legal and define legal.intel_<name>.license_ack=1 via
313 loader.conf(5) or kenv(1). Make sure to deinstall the now
314 deprecated modules from the respective firmware ports.
317 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
318 were removed from FreeBSD's libc. These originally came from INRIA
319 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
320 deprecated in previous releases.
321 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
322 replace it as a more portable (and re-entrant) API.
325 To support interrupt filtering a modification to the newbus API
326 has occurred, ABI was broken and __FreeBSD_version was bumped
327 to 700031. Please make sure that your kernel and modules are in
329 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
332 The IPv6 multicast forwarding code may now be loaded into GENERIC
333 kernels by loading the ip_mroute.ko module. This is built into the
334 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
335 set; see src.conf(5) for more information.
338 The output of netstat -r has changed. Without -n, we now only
339 print a "network name" without the prefix length if the network
340 address and mask exactly match a Class A/B/C network, and an entry
341 exists in the nsswitch "networks" map.
342 With -n, we print the full unabbreviated CIDR network prefix in
343 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
344 This change is in preparation for changes such as equal-cost
345 multipath, and to more generally assist operational deployment
346 of FreeBSD as a modern IPv4 router.
349 PIM has been turned on by default in the IPv4 multicast
350 routing code. The kernel option 'PIM' has now been removed.
351 PIM is now built by default if option 'MROUTING' is specified.
352 It may now be loaded into GENERIC kernels by loading the
356 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
357 has been removed. Its functionality may be achieved by explicitly
358 configuring gif(4) interfaces and using the 'phyint' keyword in
360 XORP does not support source-routed IPv4 multicast tunnels nor the
361 integrated IPIP tunneling, therefore it is not affected by this
362 change. The __FreeBSD_version macro has been bumped to 700030.
365 Support for PCI Message Signalled Interrupts has been
366 re-enabled in the bge driver, only for those chips which are
367 believed to support it properly. If there are any problems,
368 MSI can be disabled completely by setting the
369 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
373 Support for PCI Message Signalled Interrupts has been
374 disabled again in the bge driver. Many revisions of the
375 hardware fail to support it properly. Support can be
376 re-enabled by removing the #define of BGE_DISABLE_MSI in
377 "src/sys/dev/bge/if_bge.c".
380 Support for PCI Message Signalled Interrupts has been added
381 to the bge driver. If there are any problems, MSI can be
382 disabled completely by setting the 'hw.pci.enable_msi' and
383 'hw.pci.enable_msix' tunables to 0 in the loader.
386 The removal of several facets of the experimental Threading
387 system from the kernel means that the proc and thread structures
388 have changed quite a bit. I suggest all kernel modules that might
389 reference these structures be recompiled.. Especially the
393 Sound infrastructure has been updated with various fixes and
394 improvements. Most of the changes are pretty much transparent,
395 with exceptions of followings:
396 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
397 moved to their own dev sysctl nodes, for example:
398 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
399 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
400 own chardev in the form of "dsp%d.<function>%d", where <function>
401 is p = playback, r = record and v = virtual, respectively. Users
402 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
403 This does not affect those who are using "/dev/dsp".
406 The following binaries have been disconnected from the build:
407 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
408 and mount_std. The functionality of these programs has been
409 moved into the mount program. For example, to mount a devfs
410 filesystem, instead of using mount_devfs, use: "mount -t devfs".
411 This does not affect entries in /etc/fstab, since entries in
412 /etc/fstab are always processed with "mount -t fstype".
415 Support for PCI Message Signalled Interrupts on i386 and amd64
416 has been added to the kernel and various drivers will soon be
417 updated to use MSI when it is available. If there are any problems,
418 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
419 and 'hw.pci.enable_msix' tunables to 0 in the loader.
422 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
423 The lockmgr object layout has been changed as a result of having
424 a lock_object embedded in it. As a consequence all file system
425 kernel modules must be re-compiled. The mutex profiling man page
426 has not yet been updated to reflect this change.
429 KSE in the kernel has now been made optional and turned on by
430 default. Use 'nooption KSE' in your kernel config to turn it
431 off. All kernel modules *must* be recompiled after this change.
432 There-after, modules from a KSE kernel should be compatible with
433 modules from a NOKSE kernel due to the temporary padding fields
434 added to 'struct proc'.
437 mrouted and its utilities have been removed from the base system.
440 Some ioctl(2) command codes have changed. Full backward ABI
441 compatibility is provided if the "options COMPAT_FREEBSD6" is
442 present in the kernel configuration file. Make sure to add
443 this option to your kernel config file, or recompile X.Org
444 and the rest of ports; otherwise they may refuse to work.
447 tcpslice has been removed from the base system.
450 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
451 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
452 systat needs to be rebuilt.
455 libpcap updated to v0.9.4 and tcpdump to v3.9.4
458 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
459 for IPFIREWALL_FORWARD is now as it was before when it was first
460 committed and for years after. The behaviour is now ON.
463 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
464 Now it can decrypt files created from different architectures.
465 Unfortunately, it is no longer able to decrypt a cipher text
466 generated with an older version on 64 bit architectures.
467 If you have such a file, you need old utility to decrypt it.
470 The interface version of the i4b kernel part has changed. So
471 after updating the kernel sources and compiling a new kernel,
472 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
473 be rebuilt, and vice versa.
476 The XBOX kernel now defaults to the nfe(4) driver instead of
477 the nve(4) driver. Please update your configuration
481 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
482 PCnet family of NICs has been removed. The new le(4) driver serves
483 as an equivalent but cross-platform replacement with the pcn(4)
484 driver still providing performance-optimized support for the subset
485 of AMD Am79C971 PCnet-FAST and greater chips as before.
488 The machdep.* sysctls and the adjkerntz utility have been
489 modified a bit. The new adjkerntz utility uses the new
490 sysctl names and sysctlbyname() calls, so it may be impossible
491 to run an old /sbin/adjkerntz utility in single-user mode
492 with a new kernel. Replace the `adjkerntz -i' step before
493 `make installworld' with:
495 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
497 and proceed as usual with the rest of the installworld-stage
498 steps. Otherwise, you risk installing binaries with their
499 timestamp set several hours in the future, especially if
500 you are running with local time set to GMT+X hours.
503 The ip6fw utility has been removed. The behavior provided by
504 ip6fw has been in ipfw2 for a good while and the rc.d scripts
505 have been updated to deal with it. There are some rules that
506 might not migrate cleanly. Use rc.firewall6 as a template to
510 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
511 attachments have been removed. Make sure to configure scc(4)
512 on sparc64. Note also that by default puc(4) will use uart(4)
513 and not sio(4) for serial ports because interrupt handling has
514 been optimized for multi-port serial cards and only uart(4)
515 implements the interface to support it.
518 The scc(4) driver replaces puc(4) for Serial Communications
519 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
520 Z8530. On sparc64, it is advised to add scc(4) to the kernel
521 configuration to make sure that the serial ports remain
525 Most world/kernel related NO_* build options changed names.
526 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
527 after FreeBSD ports) and should be set in /etc/src.conf
528 (the src.conf(5) manpage is provided). Full backwards
529 compatibility is maintained for the time being though it's
530 highly recommended to start moving old options out of the
531 system-wide /etc/make.conf file into the new /etc/src.conf
532 while also properly renaming them. More conversions will
533 likely follow. Posting to current@:
535 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
538 The NETSMBCRYPTO kernel option has been retired because its
539 functionality is always included in NETSMB and smbfs.ko now.
542 The TDFX_LINUX kernel option was retired and replaced by the
543 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
544 kernel module. Loading it alone should suffice to get 3dfx support
545 for Linux apps because it will pull in 3dfx.ko and linux.ko through
549 The 'audit' group was added to support the new auditing functionality
550 in the base system. Be sure to follow the directions for updating,
551 including the requirement to run mergemaster -p.
554 The kernel ABI to file system modules was changed on i386.
555 Please make sure that your kernel and modules are in sync.
558 This actually occured some time ago, but installing the kernel
559 now also installs a bunch of symbol files for the kernel modules.
560 This increases the size of /boot/kernel to about 67Mbytes. You
561 will need twice this if you will eventually back this up to kernel.old
562 on your next install.
563 If you have a shortage of room in your root partition, you should add
564 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
565 to your /etc/make.conf.
568 libc's malloc implementation has been replaced. This change has the
569 potential to uncover application bugs that previously went unnoticed.
570 See the malloc(3) manual page for more details.
573 The generic netgraph(4) cookie has been changed. If you upgrade
574 kernel passing this point, you also need to upgrade userland
575 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
578 si(4)'s device files now contain the unit number.
579 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
582 The kernel ABI was mostly destroyed due to a change in the size
583 of struct lock_object which is nested in other structures such
584 as mutexes which are nested in all sorts of other structures.
585 Make sure your kernel and modules are in sync.
588 The page coloring algorithm in the VM subsystem was converted
589 from tuning with kernel options to autotuning. Please remove
590 any PQ_* option except PQ_NOOPT from your kernel config.
593 The net80211-related tools in the tools/tools/ath directory
594 have been moved to tools/tools/net80211 and renamed with a
595 "wlan" prefix. Scripts that use them should be adjusted
599 Scripts in the local_startup directories (as defined in
600 /etc/defaults/rc.conf) that have the new rc.d semantics will
601 now be run as part of the base system rcorder. If there are
602 errors or problems with one of these local scripts, it could
603 cause boot problems. If you encounter such problems, boot in
604 single user mode, remove that script from the */rc.d directory.
605 Please report the problem to the port's maintainer, and the
606 freebsd-ports@freebsd.org mailing list.
609 The nodev mount option was deprecated in RELENG_6 (where it
610 was a no-op), and is now unsupported. If you have nodev or dev listed
611 in /etc/fstab, remove it, otherwise it will result in a mount error.
614 ABI between ipfw(4) and ipfw(8) has been changed. You need
615 to rebuild ipfw(8) when rebuilding kernel.
618 rp(4)'s device files now contain the unit number.
619 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
622 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
623 Its /etc/rc.conf.d configuration file has been `ppp' from
624 the beginning, and hence there is no need to touch it.
627 Now most modules get their build-time options from the kernel
628 configuration file. A few modules still have fixed options
629 due to their non-conformant implementation, but they will be
630 corrected eventually. You may need to review the options of
631 the modules in use, explicitly specify the non-default options
632 in the kernel configuration file, and rebuild the kernel and
636 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
637 to turn polling(4) on your interfaces.
640 The old bridge(4) implementation was retired. The new
641 if_bridge(4) serves as a full functional replacement.
644 The ai_addrlen of a struct addrinfo was changed to a socklen_t
645 to conform to POSIX-2001. This change broke an ABI
646 compatibility on 64 bit architecture. You have to recompile
647 userland programs that use getaddrinfo(3) on 64 bit
651 RELENG_6 branched here.
654 The pccard_ifconfig rc.conf variable has been removed and a new
655 variable, ifconfig_DEFAULT has been introduced. Unlike
656 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
657 do not have ifconfig_ifn entries rather than just those in
658 removable_interfaces.
661 Some previous versions of PAM have permitted the use of
662 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
663 to third party PAM modules in /usr/local/lib. A change has been
664 made to require the use of absolute paths in order to avoid
665 ambiguity and dependence on library path configuration, which may
666 affect existing configurations.
669 Major changes to network interface API. All drivers must be
670 recompiled. Drivers not in the base system will need to be
671 updated to the new APIs.
674 Changes were made to kinfo_proc in sys/user.h. Please recompile
675 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
676 will not behave correctly.
678 The API and ABI for hwpmc(4) have changed with the addition
679 of sampling support. Please recompile lib/libpmc(3) and
680 usr.sbin/{pmcstat,pmccontrol}.
683 The OpenBSD dhclient was imported in place of the ISC dhclient
684 and the network interface configuration scripts were updated
685 accordingly. If you use DHCP to configure your interfaces, you
686 must now run devd. Also, DNS updating was lost so you will need
687 to find a workaround if you use this feature.
689 The '_dhcp' user was added to support the OpenBSD dhclient. Be
690 sure to run mergemaster -p (like you are supposed to do every time
694 if_bridge was added to the tree. This has changed struct ifnet.
695 Please recompile userland and all network related modules.
698 The n_net of a struct netent was changed to an uint32_t, and
699 1st argument of getnetbyaddr() was changed to an uint32_t, to
700 conform to POSIX-2001. These changes broke an ABI
701 compatibility on 64 bit architecture. With these changes,
702 shlib major of libpcap was bumped. You have to recompile
703 userland programs that use getnetbyaddr(3), getnetbyname(3),
704 getnetent(3) and/or libpcap on 64 bit architecture.
707 Kernel parsing of extra options on '#!' first lines of shell
708 scripts has changed. Lines with multiple options likely will
709 fail after this date. For full details, please see
710 http://people.freebsd.org/~gad/Updating-20050528.txt
713 The packet filter (pf) code has been updated to OpenBSD 3.7
714 Please note the changed anchor syntax and the fact that
715 authpf(8) now needs a mounted fdescfs(5) to function.
718 The NO_MIXED_MODE kernel option has been removed from the i386
719 amd64 platforms as its use has been superceded by the new local
720 APIC timer code. Any kernel config files containing this option
724 The on-disk format of LC_CTYPE files was changed to be machine
725 independent. Please make sure NOT to use NO_CLEAN buildworld
726 when crossing this point. Crossing this point also requires
727 recompile or reinstall of all locale depended packages.
730 The ifi_epoch member of struct if_data has been changed to
731 contain the uptime at which the interface was created or the
732 statistics zeroed rather then the wall clock time because
733 wallclock time may go backwards. This should have no impact
734 unless an snmp implementation is using this value (I know of
738 The acpi_perf and acpi_throttle drivers are now part of the
739 acpi(4) main module. They are no longer built separately.
742 The layout of struct image_params has changed. You have to
743 recompile all compatibility modules (linux, svr4, etc) for use
747 The p4tcc driver has been merged into cpufreq(4). This makes
748 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
749 compile in "device cpufreq" to restore this functionality.
752 The responsibility of recomputing the file system summary of
753 a SoftUpdates-enabled dirty volume has been transferred to the
754 background fsck. A rebuild of fsck(8) utility is recommended
755 if you have updated the kernel.
757 To get the old behavior (recompute file system summary at mount
758 time), you can set vfs.ffs.compute_summary_at_mount=1 before
759 mounting the new volume.
762 The cpufreq import is complete. As part of this, the sysctls for
763 acpi(4) throttling have been removed. The power_profile script
764 has been updated, so you can use performance/economy_cpu_freq in
765 rc.conf(5) to set AC on/offline cpu frequencies.
768 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
769 requires recompiling libnetgraph and userland netgraph utilities.
772 Support for abbreviated forms of a number of ipfw options is
773 now deprecated. Warnings are printed to stderr indicating the
774 correct full form when a match occurs. Some abbreviations may
775 be supported at a later date based on user feedback. To be
776 considered for support, abbreviations must be in use prior to
777 this commit and unlikely to be confused with current key words.
780 By a popular demand, a lot of NOFOO options were renamed
781 to NO_FOO (see bsd.compat.mk for a full list). The old
782 spellings are still supported, but will cause annoying
783 warnings on stderr. Make sure you upgrade properly (see
784 the COMMON ITEMS: section later in this file).
787 Auto-loading of ancillary wlan modules such as wlan_wep has
788 been temporarily disabled; you need to statically configure
789 the modules you need into your kernel or explicitly load them
790 prior to use. Specifically, if you intend to use WEP encryption
791 with an 802.11 device load/configure wlan_wep; if you want to
792 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
793 and wlan_xauth as required.
796 The behaviour of ppp(8) has changed slightly. If lqr is enabled
797 (``enable lqr''), older versions would revert to LCP ECHO mode on
798 negotiation failure. Now, ``enable echo'' is required for this
799 behaviour. The ppp version number has been bumped to 3.4.2 to
803 The wlan support has been updated to split the crypto support
804 into separate modules. For static WEP you must configure the
805 wlan_wep module in your system or build and install the module
806 in place where it can be loaded (the kernel will auto-load
807 the module when a wep key is configured).
810 The ath driver has been updated to split the tx rate control
811 algorithm into a separate module. You need to include either
812 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
815 Support for systems with an 80386 CPU has been removed. Please
816 use FreeBSD 5.x or earlier on systems with an 80386.
819 We have had a hack which would mount the root filesystem
820 R/W if the device were named 'md*'. As part of the vnode
821 work I'm doing I have had to remove this hack. People
822 building systems which use preloaded MD root filesystems
823 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
824 their /etc/rc scripts.
827 FreeBSD 5.3 shipped here.
830 The size of struct tcpcb has changed again due to the removal
831 of RFC1644 T/TCP. You have to recompile userland programs that
832 read kmem for tcp sockets directly (netstat, sockstat, etc.)
835 The size of struct tcpcb has changed. You have to recompile
836 userland programs that read kmem for tcp sockets directly
837 (netstat, sockstat, etc.)
840 RELENG_5 branched here. For older entries, please see updating
841 in the RELENG_5 branch.
847 Avoid using make -j when upgrading. From time to time in the
848 past there have been problems using -j with buildworld and/or
849 installworld. This is especially true when upgrading between
850 "distant" versions (eg one that cross a major release boundary
851 or several minor releases, or when several months have passed
852 on the -current branch).
854 Sometimes, obscure build problems are the result of environment
855 poisoning. This can happen because the make utility reads its
856 environment when searching for values for global variables.
857 To run your build attempts in an "environmental clean room",
858 prefix all make commands with 'env -i '. See the env(1) manual
859 page for more details.
861 When upgrading from one major version to another it is generally
862 best to upgrade to the latest code in the currently installed branch
863 first, then do an upgrade to the new branch. This is the best-tested
864 upgrade path, and has the highest probability of being successful.
865 Please try this approach before reporting problems with a major
870 If you are updating from a prior version of FreeBSD (even one just
871 a few days old), you should follow this procedure. It is the most
872 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
874 make kernel-toolchain
875 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
876 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
878 To test a kernel once
879 ---------------------
880 If you just want to boot a kernel once (because you are not sure
881 if it works, or if you want to boot a known bad kernel to provide
882 debugging information) run
883 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
884 nextboot -k testkernel
886 To just build a kernel when you know that it won't mess you up
887 --------------------------------------------------------------
888 This assumes you are already running a 5.X system. Replace
889 ${arch} with the architecture of your machine (e.g. "i386",
890 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
892 cd src/sys/${arch}/conf
893 config KERNEL_NAME_HERE
894 cd ../compile/KERNEL_NAME_HERE
899 If this fails, go to the "To build a kernel" section.
901 To rebuild everything and install it on the current system.
902 -----------------------------------------------------------
903 # Note: sometimes if you are running current you gotta do more than
904 # is listed here if you are upgrading from a really old current.
906 <make sure you have good level 0 dumps>
908 make kernel KERNCONF=YOUR_KERNEL_HERE
910 <reboot in single user> [3]
918 To cross-install current onto a separate partition
919 --------------------------------------------------
920 # In this approach we use a separate partition to hold
921 # current's root, 'usr', and 'var' directories. A partition
922 # holding "/", "/usr" and "/var" should be about 2GB in
925 <make sure you have good level 0 dumps>
928 make buildkernel KERNCONF=YOUR_KERNEL_HERE
929 <maybe newfs current's root partition>
930 <mount current's root partition on directory ${CURRENT_ROOT}>
931 make installworld DESTDIR=${CURRENT_ROOT}
932 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
933 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
934 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
935 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
936 <reboot into current>
937 <do a "native" rebuild/install as described in the previous section>
938 <maybe install compatibility libraries from src/lib/compat>
942 To upgrade in-place from 5.x-stable to current
943 ----------------------------------------------
944 <make sure you have good level 0 dumps>
946 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
948 <reboot in single user> [3]
955 Make sure that you've read the UPDATING file to understand the
956 tweaks to various things you need. At this point in the life
957 cycle of current, things change often and you are on your own
958 to cope. The defaults can also change, so please read ALL of
959 the UPDATING entries.
961 Also, if you are tracking -current, you must be subscribed to
962 freebsd-current@freebsd.org. Make sure that before you update
963 your sources that you have read and understood all the recent
964 messages there. If in doubt, please track -stable which has
967 [1] If you have third party modules, such as vmware, you
968 should disable them at this point so they don't crash your
971 [3] From the bootblocks, boot -s, and then do
976 adjkerntz -i # if CMOS is wall time
977 Also, when doing a major release upgrade, it is required that
978 you boot into single user mode to do the installworld.
980 [4] Note: This step is non-optional. Failure to do this step
981 can result in a significant reduction in the functionality of the
982 system. Attempting to do it by hand is not recommended and those
983 that pursue this avenue should read this file carefully, as well
984 as the archives of freebsd-current and freebsd-hackers mailing lists
985 for potential gotchas.
987 [5] Usually this step is a noop. However, from time to time
988 you may need to do this if you get unknown user in the following
989 step. It never hurts to do it all the time. You may need to
990 install a new mergemaster (cd src/usr.sbin/mergemaster && make
991 install) after the buildworld before this step if you last updated
992 from current before 20020224 or from -stable before 20020408.
994 [8] In order to have a kernel that can run the 4.x binaries
995 needed to do an installworld, you must include the COMPAT_FREEBSD4
996 option in your kernel. Failure to do so may leave you with a system
997 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
998 is required to run the 5.x binaries on more recent kernels.
1000 Make sure that you merge any new devices from GENERIC since the
1001 last time you updated your kernel config file.
1003 [9] When checking out sources, you must include the -P flag to have
1004 cvs prune empty directories.
1006 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1007 "?=" instead of the "=" assignment operator, so that buildworld can
1008 override the CPUTYPE if it needs to.
1010 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1011 not on the command line, or in /etc/make.conf. buildworld will
1012 warn if it is improperly defined.
1015 This file contains a list, in reverse chronological order, of major
1016 breakages in tracking -current. Not all things will be listed here,
1017 and it only starts on October 16, 2004. Updating files can found in
1018 previous releases if your system is older than this.
1020 Copyright information:
1022 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
1024 Redistribution, publication, translation and use, with or without
1025 modification, in full or in part, in any form or format of this
1026 document are permitted without further permission from the author.
1028 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1029 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1030 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1031 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1032 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1033 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1034 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1035 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1036 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1037 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1038 POSSIBILITY OF SUCH DAMAGE.
1040 If you find this document useful, and you want to, you may buy the
1043 Contact Warner Losh if you have any questions about your use of