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 gpt(8) utility has been removed. Use gpart(8) to partition
30 The version that Linuxulator emulates was changed from 2.4.2
31 to 2.6.16. If you experience any problems with Linux binaries
32 please try to set sysctl compat.linux.osrelease to 2.4.2 and
33 if it fixes the problem contact emulation mailing list.
36 ISDN4BSD (I4B) was removed from the src tree. You may need to
37 update a your kernel configuration and remove relevant entries.
40 I have checked in code to support multiple routing tables.
41 see the man pages setfib(1) and setfib(2).
42 This is a hopefully backwards compatible version,
43 but to make use of it you need to compile your kernel
44 with options ROUTETABLES=2 (or more up to 16).
47 The 802.11 wireless support was redone to enable multi-bss
48 operation on devices that are capable. The underlying device
49 is no longer used directly but instead wlanX devices are
50 cloned with ifconfig. This requires changes to rc.conf files.
52 ifconfig_ath0="WPA DHCP"
55 ifconfig_wlan0="WPA DHCP"
56 see rc.conf(5) for more details. In addition, mergemaster of
57 /etc/rc.d is highly recommended. Simultaneous update of userland
58 and kernel wouldn't hurt either.
60 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
61 modules were merged into the base wlan module. All references
62 to these modules (e.g. in kernel config files) must be removed.
65 psm(4) has gained write(2) support in native operation level.
66 Arbitrary commands can be written to /dev/psm%d and status can
67 be read back from it. Therefore, an application is responsible
68 for status validation and error recovery. It is a no-op in
69 other operation levels.
72 Support for KSE threading has been removed from the kernel. To
73 run legacy applications linked against KSE libmap.conf may
74 be used. The following libmap.conf may be used to ensure
75 compatibility with any prior release:
77 libpthread.so.1 libthr.so.1
78 libpthread.so.2 libthr.so.2
79 libkse.so.3 libthr.so.3
82 The layout of struct vmspace has changed. This affects libkvm
83 and any executables that link against libkvm and use the
84 kvm_getprocs() function. In particular, but not exclusively,
85 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
86 The effects are minimal, but it's advisable to upgrade world
90 The latest em driver no longer has support in it for the
91 82575 adapter, this is now moved to the igb driver. The
92 split was done to make new features that are incompatible
93 with older hardware easier to do.
96 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
97 likewise the kernel option is now GEOM_LINUX_LVM.
100 The default NFS mount mode has changed from UDP to TCP for
101 increased reliability. If you rely on (insecurely) NFS
102 mounting across a firewall you may need to update your
106 Belatedly note the addition of m_collapse for compacting
110 The fts(3) structures have been changed to use adequate
111 integer types for their members and so to be able to cope
112 with huge file trees. The old fts(3) ABI is preserved
113 through symbol versioning in libc, so third-party binaries
114 using fts(3) should still work, although they will not take
115 advantage of the extended types. At the same time, some
116 third-party software might fail to build after this change
117 due to unportable assumptions made in its source code about
118 fts(3) structure members. Such software should be fixed
119 by its vendor or, in the worst case, in the ports tree.
120 FreeBSD_version 800015 marks this change for the unlikely
121 case that a portable fix is impossible.
124 To upgrade to -current after this date, you must be running
125 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
126 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
129 The ADAPTIVE_GIANT kernel option has been retired because its
130 functionality is the default now.
133 The AT keyboard emulation of sunkbd(4) has been turned on
134 by default. In order to make the special symbols of the Sun
135 keyboards driven by sunkbd(4) work under X these now have
136 to be configured the same way as Sun USB keyboards driven
137 by ukbd(4) (which also does AT keyboard emulation), f.e.:
139 Option "XkbLayout" "us"
140 Option "XkbRules" "xorg"
141 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
144 It has been decided that it is desirable to provide ABI
145 backwards compatibility to the FreeBSD 4/5/6 versions of the
146 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
147 broken with the introduction of PCI domain support (see the
148 20070930 entry). Unfortunately, this required the ABI of
149 PCIOCGETCONF to be broken again in order to be able to
150 provide backwards compatibility to the old version of that
151 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
152 again. As for prominent ports this affects neither pciutils
153 nor xorg-server this time, the hal port needs to be rebuilt
157 The misnamed kthread_create() and friends have been renamed
158 to kproc_create() etc. Many of the callers already
160 I will return kthread_create() and friends in a while
161 with implementations that actually create threads, not procs.
162 Renaming corresponds with version 800002.
168 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
169 WITHOUT_LIBTHR are set.
172 The PCI code has been made aware of PCI domains. This means that
173 the location strings as used by pciconf(8) etc are now in the
174 following format: pci<domain>:<bus>:<device>[:<function>]. It
175 also means that consumers of <sys/pciio.h> potentially need to
176 be recompiled; this includes the hal and xorg-server ports.
179 The caching daemon (cached) was renamed to nscd. nscd.conf
180 configuration file should be used instead of cached.conf and
181 nscd_enable, nscd_pidfile and nscd_flags options should be used
182 instead of cached_enable, cached_pidfile and cached_flags in
186 The getfacl(1) utility now prints owning user and group name
187 instead of owning uid and gid in the three line comment header.
188 This is the same behavior as getfacl(1) on Solaris and Linux.
191 The new IPsec code is now compiled in using the IPSEC option. The
192 IPSEC option now requires "device crypto" be defined in your kernel
193 configuration. The FAST_IPSEC kernel option is now deprecated.
196 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
197 note the changed syntax - keep state is now on by default. Also
198 note the fact that ftp-proxy(8) has been changed from bottom up and
199 has been moved from libexec to usr/sbin. Changes in the ALTQ
200 handling also affect users of IPFW's ALTQ capabilities.
203 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
204 only IPsec supported by FreeBSD. The new IPsec stack
205 supports both IPv4 and IPv6. The kernel option will change
206 after the code changes have settled in. For now the kernel
207 option IPSEC is deprecated and FAST_IPSEC is the only option, that
208 will change after some settling time.
211 The wicontrol(8) utility has been removed from the base system. wi(4)
212 cards should be configured using ifconfig(8), see the man page for more
216 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
217 instead of the nve(4) driver. Please update your configuration
221 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
222 database if it is missing or older than the aliases file. If
223 desired, set the new rc.conf option sendmail_rebuild_aliases
224 to "YES" to restore that functionality.
227 The IPv4 multicast socket code has been considerably modified, and
228 moved to the file sys/netinet/in_mcast.c. Initial support for the
229 RFC 3678 Source-Specific Multicast Socket API has been added to
230 the IPv4 network stack.
232 Strict multicast and broadcast reception is now the default for
233 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
234 has now been removed.
236 The RFC 1724 hack for interface selection has been removed; the use
237 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
238 been added to replace it. Consumers such as routed will soon be
239 updated to reflect this.
241 These changes affect users who are running routed(8) or rdisc(8)
242 from the FreeBSD base system on point-to-point or unnumbered
246 The net80211 layer has changed significantly and all wireless
247 drivers that depend on it need to be recompiled. Further these
248 changes require that any program that interacts with the wireless
249 support in the kernel be recompiled; this includes: ifconfig,
250 wpa_supplicant, hostapd, and wlanstats. Users must also, for
251 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
252 if they use modules for wireless support. These modules implement
253 scanning support for station and ap modes, respectively. Failure
254 to load the appropriate module before marking a wireless interface
255 up will result in a message to the console and the device not
259 The pam_nologin(8) module ceases to provide an authentication
260 function and starts providing an account management function.
261 Consequent changes to /etc/pam.d should be brought in using
262 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
263 need manual editing as follows. Locate this line (or similar):
265 auth required pam_nologin.so no_warn
267 and change it according to this example:
269 account required pam_nologin.so no_warn
271 That is, the first word needs to be changed from "auth" to
272 "account". The new line can be moved to the account section
273 within the file for clarity. Not updating pam.conf(5) files
274 will result in nologin(5) ignored by the respective services.
277 The ether_ioctl() function has been synchronized with ioctl(2)
278 and ifnet.if_ioctl. Due to that, the size of one of its arguments
279 has changed on 64-bit architectures. All kernel modules using
280 ether_ioctl() need to be rebuilt on such architectures.
283 Improved INCLUDE_CONFIG_FILE support has been introduced to the
284 config(8) utility. In order to take advantage of this new
285 functionality, you are expected to recompile and install
286 src/usr.sbin/config. If you don't rebuild config(8), and your
287 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
288 build will be broken because of a missing "kernconfstring"
292 Symbol versioning is enabled by default. To disable it, use
293 option WITHOUT_SYMVER. It is not advisable to attempt to
294 disable symbol versioning once it is enabled; your installworld
295 will break because a symbol version-less libc will get installed
296 before the install tools. As a result, the old install tools,
297 which previously had symbol dependencies to FBSD_1.0, will fail
298 because the freshly installed libc will not have them.
300 The default threading library (providing "libpthread") has been
301 changed to libthr. If you wish to have libkse as your default,
302 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
305 The ABI breakage in sendmail(8)'s libmilter has been repaired
306 so it is no longer necessary to recompile mail filters (aka,
307 milters). If you recompiled mail filters after the 20070408
308 note, it is not necessary to recompile them again.
311 The new trunk(4) driver has been renamed to lagg(4) as it better
312 reflects its purpose. ifconfig will need to be recompiled.
315 sendmail(8) has been updated to version 8.14.1. Mail filters
316 (aka, milters) compiled against the libmilter included in the
317 base operating system should be recompiled.
320 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
321 In order to use them one must agree to the respective LICENSE in
322 share/doc/legal and define legal.intel_<name>.license_ack=1 via
323 loader.conf(5) or kenv(1). Make sure to deinstall the now
324 deprecated modules from the respective firmware ports.
327 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
328 were removed from FreeBSD's libc. These originally came from INRIA
329 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
330 deprecated in previous releases.
331 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
332 replace it as a more portable (and re-entrant) API.
335 To support interrupt filtering a modification to the newbus API
336 has occurred, ABI was broken and __FreeBSD_version was bumped
337 to 700031. Please make sure that your kernel and modules are in
339 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
342 The IPv6 multicast forwarding code may now be loaded into GENERIC
343 kernels by loading the ip_mroute.ko module. This is built into the
344 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
345 set; see src.conf(5) for more information.
348 The output of netstat -r has changed. Without -n, we now only
349 print a "network name" without the prefix length if the network
350 address and mask exactly match a Class A/B/C network, and an entry
351 exists in the nsswitch "networks" map.
352 With -n, we print the full unabbreviated CIDR network prefix in
353 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
354 This change is in preparation for changes such as equal-cost
355 multipath, and to more generally assist operational deployment
356 of FreeBSD as a modern IPv4 router.
359 PIM has been turned on by default in the IPv4 multicast
360 routing code. The kernel option 'PIM' has now been removed.
361 PIM is now built by default if option 'MROUTING' is specified.
362 It may now be loaded into GENERIC kernels by loading the
366 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
367 has been removed. Its functionality may be achieved by explicitly
368 configuring gif(4) interfaces and using the 'phyint' keyword in
370 XORP does not support source-routed IPv4 multicast tunnels nor the
371 integrated IPIP tunneling, therefore it is not affected by this
372 change. The __FreeBSD_version macro has been bumped to 700030.
375 Support for PCI Message Signalled Interrupts has been
376 re-enabled in the bge driver, only for those chips which are
377 believed to support it properly. If there are any problems,
378 MSI can be disabled completely by setting the
379 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
383 Support for PCI Message Signalled Interrupts has been
384 disabled again in the bge driver. Many revisions of the
385 hardware fail to support it properly. Support can be
386 re-enabled by removing the #define of BGE_DISABLE_MSI in
387 "src/sys/dev/bge/if_bge.c".
390 Support for PCI Message Signalled Interrupts has been added
391 to the bge driver. If there are any problems, MSI can be
392 disabled completely by setting the 'hw.pci.enable_msi' and
393 'hw.pci.enable_msix' tunables to 0 in the loader.
396 The removal of several facets of the experimental Threading
397 system from the kernel means that the proc and thread structures
398 have changed quite a bit. I suggest all kernel modules that might
399 reference these structures be recompiled.. Especially the
403 Sound infrastructure has been updated with various fixes and
404 improvements. Most of the changes are pretty much transparent,
405 with exceptions of followings:
406 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
407 moved to their own dev sysctl nodes, for example:
408 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
409 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
410 own chardev in the form of "dsp%d.<function>%d", where <function>
411 is p = playback, r = record and v = virtual, respectively. Users
412 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
413 This does not affect those who are using "/dev/dsp".
416 The following binaries have been disconnected from the build:
417 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
418 and mount_std. The functionality of these programs has been
419 moved into the mount program. For example, to mount a devfs
420 filesystem, instead of using mount_devfs, use: "mount -t devfs".
421 This does not affect entries in /etc/fstab, since entries in
422 /etc/fstab are always processed with "mount -t fstype".
425 Support for PCI Message Signalled Interrupts on i386 and amd64
426 has been added to the kernel and various drivers will soon be
427 updated to use MSI when it is available. If there are any problems,
428 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
429 and 'hw.pci.enable_msix' tunables to 0 in the loader.
432 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
433 The lockmgr object layout has been changed as a result of having
434 a lock_object embedded in it. As a consequence all file system
435 kernel modules must be re-compiled. The mutex profiling man page
436 has not yet been updated to reflect this change.
439 KSE in the kernel has now been made optional and turned on by
440 default. Use 'nooption KSE' in your kernel config to turn it
441 off. All kernel modules *must* be recompiled after this change.
442 There-after, modules from a KSE kernel should be compatible with
443 modules from a NOKSE kernel due to the temporary padding fields
444 added to 'struct proc'.
447 mrouted and its utilities have been removed from the base system.
450 Some ioctl(2) command codes have changed. Full backward ABI
451 compatibility is provided if the "options COMPAT_FREEBSD6" is
452 present in the kernel configuration file. Make sure to add
453 this option to your kernel config file, or recompile X.Org
454 and the rest of ports; otherwise they may refuse to work.
457 tcpslice has been removed from the base system.
460 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
461 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
462 systat needs to be rebuilt.
465 libpcap updated to v0.9.4 and tcpdump to v3.9.4
468 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
469 for IPFIREWALL_FORWARD is now as it was before when it was first
470 committed and for years after. The behaviour is now ON.
473 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
474 Now it can decrypt files created from different architectures.
475 Unfortunately, it is no longer able to decrypt a cipher text
476 generated with an older version on 64 bit architectures.
477 If you have such a file, you need old utility to decrypt it.
480 The interface version of the i4b kernel part has changed. So
481 after updating the kernel sources and compiling a new kernel,
482 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
483 be rebuilt, and vice versa.
486 The XBOX kernel now defaults to the nfe(4) driver instead of
487 the nve(4) driver. Please update your configuration
491 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
492 PCnet family of NICs has been removed. The new le(4) driver serves
493 as an equivalent but cross-platform replacement with the pcn(4)
494 driver still providing performance-optimized support for the subset
495 of AMD Am79C971 PCnet-FAST and greater chips as before.
498 The machdep.* sysctls and the adjkerntz utility have been
499 modified a bit. The new adjkerntz utility uses the new
500 sysctl names and sysctlbyname() calls, so it may be impossible
501 to run an old /sbin/adjkerntz utility in single-user mode
502 with a new kernel. Replace the `adjkerntz -i' step before
503 `make installworld' with:
505 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
507 and proceed as usual with the rest of the installworld-stage
508 steps. Otherwise, you risk installing binaries with their
509 timestamp set several hours in the future, especially if
510 you are running with local time set to GMT+X hours.
513 The ip6fw utility has been removed. The behavior provided by
514 ip6fw has been in ipfw2 for a good while and the rc.d scripts
515 have been updated to deal with it. There are some rules that
516 might not migrate cleanly. Use rc.firewall6 as a template to
520 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
521 attachments have been removed. Make sure to configure scc(4)
522 on sparc64. Note also that by default puc(4) will use uart(4)
523 and not sio(4) for serial ports because interrupt handling has
524 been optimized for multi-port serial cards and only uart(4)
525 implements the interface to support it.
528 The scc(4) driver replaces puc(4) for Serial Communications
529 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
530 Z8530. On sparc64, it is advised to add scc(4) to the kernel
531 configuration to make sure that the serial ports remain
535 Most world/kernel related NO_* build options changed names.
536 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
537 after FreeBSD ports) and should be set in /etc/src.conf
538 (the src.conf(5) manpage is provided). Full backwards
539 compatibility is maintained for the time being though it's
540 highly recommended to start moving old options out of the
541 system-wide /etc/make.conf file into the new /etc/src.conf
542 while also properly renaming them. More conversions will
543 likely follow. Posting to current@:
545 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
548 The NETSMBCRYPTO kernel option has been retired because its
549 functionality is always included in NETSMB and smbfs.ko now.
552 The TDFX_LINUX kernel option was retired and replaced by the
553 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
554 kernel module. Loading it alone should suffice to get 3dfx support
555 for Linux apps because it will pull in 3dfx.ko and linux.ko through
559 The 'audit' group was added to support the new auditing functionality
560 in the base system. Be sure to follow the directions for updating,
561 including the requirement to run mergemaster -p.
564 The kernel ABI to file system modules was changed on i386.
565 Please make sure that your kernel and modules are in sync.
568 This actually occured some time ago, but installing the kernel
569 now also installs a bunch of symbol files for the kernel modules.
570 This increases the size of /boot/kernel to about 67Mbytes. You
571 will need twice this if you will eventually back this up to kernel.old
572 on your next install.
573 If you have a shortage of room in your root partition, you should add
574 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
575 to your /etc/make.conf.
578 libc's malloc implementation has been replaced. This change has the
579 potential to uncover application bugs that previously went unnoticed.
580 See the malloc(3) manual page for more details.
583 The generic netgraph(4) cookie has been changed. If you upgrade
584 kernel passing this point, you also need to upgrade userland
585 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
588 si(4)'s device files now contain the unit number.
589 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
592 The kernel ABI was mostly destroyed due to a change in the size
593 of struct lock_object which is nested in other structures such
594 as mutexes which are nested in all sorts of other structures.
595 Make sure your kernel and modules are in sync.
598 The page coloring algorithm in the VM subsystem was converted
599 from tuning with kernel options to autotuning. Please remove
600 any PQ_* option except PQ_NOOPT from your kernel config.
603 The net80211-related tools in the tools/tools/ath directory
604 have been moved to tools/tools/net80211 and renamed with a
605 "wlan" prefix. Scripts that use them should be adjusted
609 Scripts in the local_startup directories (as defined in
610 /etc/defaults/rc.conf) that have the new rc.d semantics will
611 now be run as part of the base system rcorder. If there are
612 errors or problems with one of these local scripts, it could
613 cause boot problems. If you encounter such problems, boot in
614 single user mode, remove that script from the */rc.d directory.
615 Please report the problem to the port's maintainer, and the
616 freebsd-ports@freebsd.org mailing list.
619 The nodev mount option was deprecated in RELENG_6 (where it
620 was a no-op), and is now unsupported. If you have nodev or dev listed
621 in /etc/fstab, remove it, otherwise it will result in a mount error.
624 ABI between ipfw(4) and ipfw(8) has been changed. You need
625 to rebuild ipfw(8) when rebuilding kernel.
628 rp(4)'s device files now contain the unit number.
629 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
632 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
633 Its /etc/rc.conf.d configuration file has been `ppp' from
634 the beginning, and hence there is no need to touch it.
637 Now most modules get their build-time options from the kernel
638 configuration file. A few modules still have fixed options
639 due to their non-conformant implementation, but they will be
640 corrected eventually. You may need to review the options of
641 the modules in use, explicitly specify the non-default options
642 in the kernel configuration file, and rebuild the kernel and
646 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
647 to turn polling(4) on your interfaces.
650 The old bridge(4) implementation was retired. The new
651 if_bridge(4) serves as a full functional replacement.
654 The ai_addrlen of a struct addrinfo was changed to a socklen_t
655 to conform to POSIX-2001. This change broke an ABI
656 compatibility on 64 bit architecture. You have to recompile
657 userland programs that use getaddrinfo(3) on 64 bit
661 RELENG_6 branched here.
664 The pccard_ifconfig rc.conf variable has been removed and a new
665 variable, ifconfig_DEFAULT has been introduced. Unlike
666 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
667 do not have ifconfig_ifn entries rather than just those in
668 removable_interfaces.
671 Some previous versions of PAM have permitted the use of
672 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
673 to third party PAM modules in /usr/local/lib. A change has been
674 made to require the use of absolute paths in order to avoid
675 ambiguity and dependence on library path configuration, which may
676 affect existing configurations.
679 Major changes to network interface API. All drivers must be
680 recompiled. Drivers not in the base system will need to be
681 updated to the new APIs.
684 Changes were made to kinfo_proc in sys/user.h. Please recompile
685 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
686 will not behave correctly.
688 The API and ABI for hwpmc(4) have changed with the addition
689 of sampling support. Please recompile lib/libpmc(3) and
690 usr.sbin/{pmcstat,pmccontrol}.
693 The OpenBSD dhclient was imported in place of the ISC dhclient
694 and the network interface configuration scripts were updated
695 accordingly. If you use DHCP to configure your interfaces, you
696 must now run devd. Also, DNS updating was lost so you will need
697 to find a workaround if you use this feature.
699 The '_dhcp' user was added to support the OpenBSD dhclient. Be
700 sure to run mergemaster -p (like you are supposed to do every time
704 if_bridge was added to the tree. This has changed struct ifnet.
705 Please recompile userland and all network related modules.
708 The n_net of a struct netent was changed to an uint32_t, and
709 1st argument of getnetbyaddr() was changed to an uint32_t, to
710 conform to POSIX-2001. These changes broke an ABI
711 compatibility on 64 bit architecture. With these changes,
712 shlib major of libpcap was bumped. You have to recompile
713 userland programs that use getnetbyaddr(3), getnetbyname(3),
714 getnetent(3) and/or libpcap on 64 bit architecture.
717 Kernel parsing of extra options on '#!' first lines of shell
718 scripts has changed. Lines with multiple options likely will
719 fail after this date. For full details, please see
720 http://people.freebsd.org/~gad/Updating-20050528.txt
723 The packet filter (pf) code has been updated to OpenBSD 3.7
724 Please note the changed anchor syntax and the fact that
725 authpf(8) now needs a mounted fdescfs(5) to function.
728 The NO_MIXED_MODE kernel option has been removed from the i386
729 amd64 platforms as its use has been superceded by the new local
730 APIC timer code. Any kernel config files containing this option
734 The on-disk format of LC_CTYPE files was changed to be machine
735 independent. Please make sure NOT to use NO_CLEAN buildworld
736 when crossing this point. Crossing this point also requires
737 recompile or reinstall of all locale depended packages.
740 The ifi_epoch member of struct if_data has been changed to
741 contain the uptime at which the interface was created or the
742 statistics zeroed rather then the wall clock time because
743 wallclock time may go backwards. This should have no impact
744 unless an snmp implementation is using this value (I know of
748 The acpi_perf and acpi_throttle drivers are now part of the
749 acpi(4) main module. They are no longer built separately.
752 The layout of struct image_params has changed. You have to
753 recompile all compatibility modules (linux, svr4, etc) for use
757 The p4tcc driver has been merged into cpufreq(4). This makes
758 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
759 compile in "device cpufreq" to restore this functionality.
762 The responsibility of recomputing the file system summary of
763 a SoftUpdates-enabled dirty volume has been transferred to the
764 background fsck. A rebuild of fsck(8) utility is recommended
765 if you have updated the kernel.
767 To get the old behavior (recompute file system summary at mount
768 time), you can set vfs.ffs.compute_summary_at_mount=1 before
769 mounting the new volume.
772 The cpufreq import is complete. As part of this, the sysctls for
773 acpi(4) throttling have been removed. The power_profile script
774 has been updated, so you can use performance/economy_cpu_freq in
775 rc.conf(5) to set AC on/offline cpu frequencies.
778 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
779 requires recompiling libnetgraph and userland netgraph utilities.
782 Support for abbreviated forms of a number of ipfw options is
783 now deprecated. Warnings are printed to stderr indicating the
784 correct full form when a match occurs. Some abbreviations may
785 be supported at a later date based on user feedback. To be
786 considered for support, abbreviations must be in use prior to
787 this commit and unlikely to be confused with current key words.
790 By a popular demand, a lot of NOFOO options were renamed
791 to NO_FOO (see bsd.compat.mk for a full list). The old
792 spellings are still supported, but will cause annoying
793 warnings on stderr. Make sure you upgrade properly (see
794 the COMMON ITEMS: section later in this file).
797 Auto-loading of ancillary wlan modules such as wlan_wep has
798 been temporarily disabled; you need to statically configure
799 the modules you need into your kernel or explicitly load them
800 prior to use. Specifically, if you intend to use WEP encryption
801 with an 802.11 device load/configure wlan_wep; if you want to
802 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
803 and wlan_xauth as required.
806 The behaviour of ppp(8) has changed slightly. If lqr is enabled
807 (``enable lqr''), older versions would revert to LCP ECHO mode on
808 negotiation failure. Now, ``enable echo'' is required for this
809 behaviour. The ppp version number has been bumped to 3.4.2 to
813 The wlan support has been updated to split the crypto support
814 into separate modules. For static WEP you must configure the
815 wlan_wep module in your system or build and install the module
816 in place where it can be loaded (the kernel will auto-load
817 the module when a wep key is configured).
820 The ath driver has been updated to split the tx rate control
821 algorithm into a separate module. You need to include either
822 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
825 Support for systems with an 80386 CPU has been removed. Please
826 use FreeBSD 5.x or earlier on systems with an 80386.
829 We have had a hack which would mount the root filesystem
830 R/W if the device were named 'md*'. As part of the vnode
831 work I'm doing I have had to remove this hack. People
832 building systems which use preloaded MD root filesystems
833 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
834 their /etc/rc scripts.
837 FreeBSD 5.3 shipped here.
840 The size of struct tcpcb has changed again due to the removal
841 of RFC1644 T/TCP. You have to recompile userland programs that
842 read kmem for tcp sockets directly (netstat, sockstat, etc.)
845 The size of struct tcpcb has changed. You have to recompile
846 userland programs that read kmem for tcp sockets directly
847 (netstat, sockstat, etc.)
850 RELENG_5 branched here. For older entries, please see updating
851 in the RELENG_5 branch.
857 Avoid using make -j when upgrading. From time to time in the
858 past there have been problems using -j with buildworld and/or
859 installworld. This is especially true when upgrading between
860 "distant" versions (eg one that cross a major release boundary
861 or several minor releases, or when several months have passed
862 on the -current branch).
864 Sometimes, obscure build problems are the result of environment
865 poisoning. This can happen because the make utility reads its
866 environment when searching for values for global variables.
867 To run your build attempts in an "environmental clean room",
868 prefix all make commands with 'env -i '. See the env(1) manual
869 page for more details.
871 When upgrading from one major version to another it is generally
872 best to upgrade to the latest code in the currently installed branch
873 first, then do an upgrade to the new branch. This is the best-tested
874 upgrade path, and has the highest probability of being successful.
875 Please try this approach before reporting problems with a major
880 If you are updating from a prior version of FreeBSD (even one just
881 a few days old), you should follow this procedure. It is the most
882 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
884 make kernel-toolchain
885 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
886 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
888 To test a kernel once
889 ---------------------
890 If you just want to boot a kernel once (because you are not sure
891 if it works, or if you want to boot a known bad kernel to provide
892 debugging information) run
893 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
894 nextboot -k testkernel
896 To just build a kernel when you know that it won't mess you up
897 --------------------------------------------------------------
898 This assumes you are already running a 5.X system. Replace
899 ${arch} with the architecture of your machine (e.g. "i386",
900 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
902 cd src/sys/${arch}/conf
903 config KERNEL_NAME_HERE
904 cd ../compile/KERNEL_NAME_HERE
909 If this fails, go to the "To build a kernel" section.
911 To rebuild everything and install it on the current system.
912 -----------------------------------------------------------
913 # Note: sometimes if you are running current you gotta do more than
914 # is listed here if you are upgrading from a really old current.
916 <make sure you have good level 0 dumps>
918 make kernel KERNCONF=YOUR_KERNEL_HERE
920 <reboot in single user> [3]
928 To cross-install current onto a separate partition
929 --------------------------------------------------
930 # In this approach we use a separate partition to hold
931 # current's root, 'usr', and 'var' directories. A partition
932 # holding "/", "/usr" and "/var" should be about 2GB in
935 <make sure you have good level 0 dumps>
938 make buildkernel KERNCONF=YOUR_KERNEL_HERE
939 <maybe newfs current's root partition>
940 <mount current's root partition on directory ${CURRENT_ROOT}>
941 make installworld DESTDIR=${CURRENT_ROOT}
942 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
943 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
944 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
945 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
946 <reboot into current>
947 <do a "native" rebuild/install as described in the previous section>
948 <maybe install compatibility libraries from src/lib/compat>
952 To upgrade in-place from 5.x-stable to current
953 ----------------------------------------------
954 <make sure you have good level 0 dumps>
956 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
958 <reboot in single user> [3]
965 Make sure that you've read the UPDATING file to understand the
966 tweaks to various things you need. At this point in the life
967 cycle of current, things change often and you are on your own
968 to cope. The defaults can also change, so please read ALL of
969 the UPDATING entries.
971 Also, if you are tracking -current, you must be subscribed to
972 freebsd-current@freebsd.org. Make sure that before you update
973 your sources that you have read and understood all the recent
974 messages there. If in doubt, please track -stable which has
977 [1] If you have third party modules, such as vmware, you
978 should disable them at this point so they don't crash your
981 [3] From the bootblocks, boot -s, and then do
986 adjkerntz -i # if CMOS is wall time
987 Also, when doing a major release upgrade, it is required that
988 you boot into single user mode to do the installworld.
990 [4] Note: This step is non-optional. Failure to do this step
991 can result in a significant reduction in the functionality of the
992 system. Attempting to do it by hand is not recommended and those
993 that pursue this avenue should read this file carefully, as well
994 as the archives of freebsd-current and freebsd-hackers mailing lists
995 for potential gotchas.
997 [5] Usually this step is a noop. However, from time to time
998 you may need to do this if you get unknown user in the following
999 step. It never hurts to do it all the time. You may need to
1000 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1001 install) after the buildworld before this step if you last updated
1002 from current before 20020224 or from -stable before 20020408.
1004 [8] In order to have a kernel that can run the 4.x binaries
1005 needed to do an installworld, you must include the COMPAT_FREEBSD4
1006 option in your kernel. Failure to do so may leave you with a system
1007 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
1008 is required to run the 5.x binaries on more recent kernels.
1010 Make sure that you merge any new devices from GENERIC since the
1011 last time you updated your kernel config file.
1013 [9] When checking out sources, you must include the -P flag to have
1014 cvs prune empty directories.
1016 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1017 "?=" instead of the "=" assignment operator, so that buildworld can
1018 override the CPUTYPE if it needs to.
1020 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1021 not on the command line, or in /etc/make.conf. buildworld will
1022 warn if it is improperly defined.
1025 This file contains a list, in reverse chronological order, of major
1026 breakages in tracking -current. Not all things will be listed here,
1027 and it only starts on October 16, 2004. Updating files can found in
1028 previous releases if your system is older than this.
1030 Copyright information:
1032 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
1034 Redistribution, publication, translation and use, with or without
1035 modification, in full or in part, in any form or format of this
1036 document are permitted without further permission from the author.
1038 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1039 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1040 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1041 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1042 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1043 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1044 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1045 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1046 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1047 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1048 POSSIBILITY OF SUCH DAMAGE.
1050 If you find this document useful, and you want to, you may buy the
1053 Contact Warner Losh if you have any questions about your use of