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 layout of struct vmspace has changed. This affects libkvm
27 and any executables that link against libkvm and use the
28 kvm_getprocs() function. In particular, but not exclusively,
29 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
30 The effects are minimal, but it's advisable to upgrade world
34 The latest em driver no longer has support in it for the
35 82575 adapter, this is now moved to the igb driver. The
36 split was done to make new features that are incompatible
37 with older hardware easier to do.
40 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
41 likewise the kernel option is now GEOM_LINUX_LVM.
44 The default NFS mount mode has changed from UDP to TCP for
45 increased reliability. If you rely on (insecurely) NFS
46 mounting across a firewall you may need to update your
50 Belatedly note the addition of m_collapse for compacting
54 The fts(3) structures have been changed to use adequate
55 integer types for their members and so to be able to cope
56 with huge file trees. The old fts(3) ABI is preserved
57 through symbol versioning in libc, so third-party binaries
58 using fts(3) should still work, although they will not take
59 advantage of the extended types. At the same time, some
60 third-party software might fail to build after this change
61 due to unportable assumptions made in its source code about
62 fts(3) structure members. Such software should be fixed
63 by its vendor or, in the worst case, in the ports tree.
64 FreeBSD_version 800015 marks this change for the unlikely
65 case that a portable fix is impossible.
68 To upgrade to -current after this date, you must be running
69 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
70 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
73 The ADAPTIVE_GIANT kernel option has been retired because its
74 functionality is the default now.
77 The AT keyboard emulation of sunkbd(4) has been turned on
78 by default. In order to make the special symbols of the Sun
79 keyboards driven by sunkbd(4) work under X these now have
80 to be configured the same way as Sun USB keyboards driven
81 by ukbd(4) (which also does AT keyboard emulation), f.e.:
83 Option "XkbLayout" "us"
84 Option "XkbRules" "xorg"
85 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
88 It has been decided that it is desirable to provide ABI
89 backwards compatibility to the FreeBSD 4/5/6 versions of the
90 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
91 broken with the introduction of PCI domain support (see the
92 20070930 entry). Unfortunately, this required the ABI of
93 PCIOCGETCONF to be broken again in order to be able to
94 provide backwards compatibility to the old version of that
95 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
96 again. As for prominent ports this affects neither pciutils
97 nor xorg-server this time, the hal port needs to be rebuilt
101 The misnamed kthread_create() and friends have been renamed
102 to kproc_create() etc. Many of the callers already
104 I will return kthread_create() and friends in a while
105 with implementations that actually create threads, not procs.
106 Renaming corresponds with version 800002.
112 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
113 WITHOUT_LIBTHR are set.
116 The PCI code has been made aware of PCI domains. This means that
117 the location strings as used by pciconf(8) etc are now in the
118 following format: pci<domain>:<bus>:<device>[:<function>]. It
119 also means that consumers of <sys/pciio.h> potentially need to
120 be recompiled; this includes the hal and xorg-server ports.
123 The caching daemon (cached) was renamed to nscd. nscd.conf
124 configuration file should be used instead of cached.conf and
125 nscd_enable, nscd_pidfile and nscd_flags options should be used
126 instead of cached_enable, cached_pidfile and cached_flags in
130 The getfacl(1) utility now prints owning user and group name
131 instead of owning uid and gid in the three line comment header.
132 This is the same behavior as getfacl(1) on Solaris and Linux.
135 The new IPsec code is now compiled in using the IPSEC option. The
136 IPSEC option now requires "device crypto" be defined in your kernel
137 configuration. The FAST_IPSEC kernel option is now deprecated.
140 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
141 note the changed syntax - keep state is now on by default. Also
142 note the fact that ftp-proxy(8) has been changed from bottom up and
143 has been moved from libexec to usr/sbin. Changes in the ALTQ
144 handling also affect users of IPFW's ALTQ capabilities.
147 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
148 only IPsec supported by FreeBSD. The new IPsec stack
149 supports both IPv4 and IPv6. The kernel option will change
150 after the code changes have settled in. For now the kernel
151 option IPSEC is deprecated and FAST_IPSEC is the only option, that
152 will change after some settling time.
155 The wicontrol(8) utility has been removed from the base system. wi(4)
156 cards should be configured using ifconfig(8), see the man page for more
160 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
161 instead of the nve(4) driver. Please update your configuration
165 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
166 database if it is missing or older than the aliases file. If
167 desired, set the new rc.conf option sendmail_rebuild_aliases
168 to "YES" to restore that functionality.
171 The IPv4 multicast socket code has been considerably modified, and
172 moved to the file sys/netinet/in_mcast.c. Initial support for the
173 RFC 3678 Source-Specific Multicast Socket API has been added to
174 the IPv4 network stack.
176 Strict multicast and broadcast reception is now the default for
177 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
178 has now been removed.
180 The RFC 1724 hack for interface selection has been removed; the use
181 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
182 been added to replace it. Consumers such as routed will soon be
183 updated to reflect this.
185 These changes affect users who are running routed(8) or rdisc(8)
186 from the FreeBSD base system on point-to-point or unnumbered
190 The net80211 layer has changed significantly and all wireless
191 drivers that depend on it need to be recompiled. Further these
192 changes require that any program that interacts with the wireless
193 support in the kernel be recompiled; this includes: ifconfig,
194 wpa_supplicant, hostapd, and wlanstats. Users must also, for
195 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
196 if they use modules for wireless support. These modules implement
197 scanning support for station and ap modes, respectively. Failure
198 to load the appropriate module before marking a wireless interface
199 up will result in a message to the console and the device not
203 The pam_nologin(8) module ceases to provide an authentication
204 function and starts providing an account management function.
205 Consequent changes to /etc/pam.d should be brought in using
206 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
207 need manual editing as follows. Locate this line (or similar):
209 auth required pam_nologin.so no_warn
211 and change it according to this example:
213 account required pam_nologin.so no_warn
215 That is, the first word needs to be changed from "auth" to
216 "account". The new line can be moved to the account section
217 within the file for clarity. Not updating pam.conf(5) files
218 will result in nologin(5) ignored by the respective services.
221 The ether_ioctl() function has been synchronized with ioctl(2)
222 and ifnet.if_ioctl. Due to that, the size of one of its arguments
223 has changed on 64-bit architectures. All kernel modules using
224 ether_ioctl() need to be rebuilt on such architectures.
227 Improved INCLUDE_CONFIG_FILE support has been introduced to the
228 config(8) utility. In order to take advantage of this new
229 functionality, you are expected to recompile and install
230 src/usr.sbin/config. If you don't rebuild config(8), and your
231 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
232 build will be broken because of a missing "kernconfstring"
236 Symbol versioning is enabled by default. To disable it, use
237 option WITHOUT_SYMVER. It is not advisable to attempt to
238 disable symbol versioning once it is enabled; your installworld
239 will break because a symbol version-less libc will get installed
240 before the install tools. As a result, the old install tools,
241 which previously had symbol dependencies to FBSD_1.0, will fail
242 because the freshly installed libc will not have them.
244 The default threading library (providing "libpthread") has been
245 changed to libthr. If you wish to have libkse as your default,
246 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
249 The ABI breakage in sendmail(8)'s libmilter has been repaired
250 so it is no longer necessary to recompile mail filters (aka,
251 milters). If you recompiled mail filters after the 20070408
252 note, it is not necessary to recompile them again.
255 The new trunk(4) driver has been renamed to lagg(4) as it better
256 reflects its purpose. ifconfig will need to be recompiled.
259 sendmail(8) has been updated to version 8.14.1. Mail filters
260 (aka, milters) compiled against the libmilter included in the
261 base operating system should be recompiled.
264 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
265 In order to use them one must agree to the respective LICENSE in
266 share/doc/legal and define legal.intel_<name>.license_ack=1 via
267 loader.conf(5) or kenv(1). Make sure to deinstall the now
268 deprecated modules from the respective firmware ports.
271 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
272 were removed from FreeBSD's libc. These originally came from INRIA
273 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
274 deprecated in previous releases.
275 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
276 replace it as a more portable (and re-entrant) API.
279 To support interrupt filtering a modification to the newbus API
280 has occurred, ABI was broken and __FreeBSD_version was bumped
281 to 700031. Please make sure that your kernel and modules are in
283 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
286 The IPv6 multicast forwarding code may now be loaded into GENERIC
287 kernels by loading the ip_mroute.ko module. This is built into the
288 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
289 set; see src.conf(5) for more information.
292 The output of netstat -r has changed. Without -n, we now only
293 print a "network name" without the prefix length if the network
294 address and mask exactly match a Class A/B/C network, and an entry
295 exists in the nsswitch "networks" map.
296 With -n, we print the full unabbreviated CIDR network prefix in
297 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
298 This change is in preparation for changes such as equal-cost
299 multipath, and to more generally assist operational deployment
300 of FreeBSD as a modern IPv4 router.
303 PIM has been turned on by default in the IPv4 multicast
304 routing code. The kernel option 'PIM' has now been removed.
305 PIM is now built by default if option 'MROUTING' is specified.
306 It may now be loaded into GENERIC kernels by loading the
310 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
311 has been removed. Its functionality may be achieved by explicitly
312 configuring gif(4) interfaces and using the 'phyint' keyword in
314 XORP does not support source-routed IPv4 multicast tunnels nor the
315 integrated IPIP tunneling, therefore it is not affected by this
316 change. The __FreeBSD_version macro has been bumped to 700030.
319 Support for PCI Message Signalled Interrupts has been
320 re-enabled in the bge driver, only for those chips which are
321 believed to support it properly. If there are any problems,
322 MSI can be disabled completely by setting the
323 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
327 Support for PCI Message Signalled Interrupts has been
328 disabled again in the bge driver. Many revisions of the
329 hardware fail to support it properly. Support can be
330 re-enabled by removing the #define of BGE_DISABLE_MSI in
331 "src/sys/dev/bge/if_bge.c".
334 Support for PCI Message Signalled Interrupts has been added
335 to the bge driver. If there are any problems, MSI can be
336 disabled completely by setting the 'hw.pci.enable_msi' and
337 'hw.pci.enable_msix' tunables to 0 in the loader.
340 The removal of several facets of the experimental Threading
341 system from the kernel means that the proc and thread structures
342 have changed quite a bit. I suggest all kernel modules that might
343 reference these structures be recompiled.. Especially the
347 Sound infrastructure has been updated with various fixes and
348 improvements. Most of the changes are pretty much transparent,
349 with exceptions of followings:
350 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
351 moved to their own dev sysctl nodes, for example:
352 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
353 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
354 own chardev in the form of "dsp%d.<function>%d", where <function>
355 is p = playback, r = record and v = virtual, respectively. Users
356 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
357 This does not affect those who are using "/dev/dsp".
360 The following binaries have been disconnected from the build:
361 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
362 and mount_std. The functionality of these programs has been
363 moved into the mount program. For example, to mount a devfs
364 filesystem, instead of using mount_devfs, use: "mount -t devfs".
365 This does not affect entries in /etc/fstab, since entries in
366 /etc/fstab are always processed with "mount -t fstype".
369 Support for PCI Message Signalled Interrupts on i386 and amd64
370 has been added to the kernel and various drivers will soon be
371 updated to use MSI when it is available. If there are any problems,
372 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
373 and 'hw.pci.enable_msix' tunables to 0 in the loader.
376 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
377 The lockmgr object layout has been changed as a result of having
378 a lock_object embedded in it. As a consequence all file system
379 kernel modules must be re-compiled. The mutex profiling man page
380 has not yet been updated to reflect this change.
383 KSE in the kernel has now been made optional and turned on by
384 default. Use 'nooption KSE' in your kernel config to turn it
385 off. All kernel modules *must* be recompiled after this change.
386 There-after, modules from a KSE kernel should be compatible with
387 modules from a NOKSE kernel due to the temporary padding fields
388 added to 'struct proc'.
391 mrouted and its utilities have been removed from the base system.
394 Some ioctl(2) command codes have changed. Full backward ABI
395 compatibility is provided if the "options COMPAT_FREEBSD6" is
396 present in the kernel configuration file. Make sure to add
397 this option to your kernel config file, or recompile X.Org
398 and the rest of ports; otherwise they may refuse to work.
401 tcpslice has been removed from the base system.
404 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
405 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
406 systat needs to be rebuilt.
409 libpcap updated to v0.9.4 and tcpdump to v3.9.4
412 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
413 for IPFIREWALL_FORWARD is now as it was before when it was first
414 committed and for years after. The behaviour is now ON.
417 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
418 Now it can decrypt files created from different architectures.
419 Unfortunately, it is no longer able to decrypt a cipher text
420 generated with an older version on 64 bit architectures.
421 If you have such a file, you need old utility to decrypt it.
424 The interface version of the i4b kernel part has changed. So
425 after updating the kernel sources and compiling a new kernel,
426 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
427 be rebuilt, and vice versa.
430 The XBOX kernel now defaults to the nfe(4) driver instead of
431 the nve(4) driver. Please update your configuration
435 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
436 PCnet family of NICs has been removed. The new le(4) driver serves
437 as an equivalent but cross-platform replacement with the pcn(4)
438 driver still providing performance-optimized support for the subset
439 of AMD Am79C971 PCnet-FAST and greater chips as before.
442 The machdep.* sysctls and the adjkerntz utility have been
443 modified a bit. The new adjkerntz utility uses the new
444 sysctl names and sysctlbyname() calls, so it may be impossible
445 to run an old /sbin/adjkerntz utility in single-user mode
446 with a new kernel. Replace the `adjkerntz -i' step before
447 `make installworld' with:
449 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
451 and proceed as usual with the rest of the installworld-stage
452 steps. Otherwise, you risk installing binaries with their
453 timestamp set several hours in the future, especially if
454 you are running with local time set to GMT+X hours.
457 The ip6fw utility has been removed. The behavior provided by
458 ip6fw has been in ipfw2 for a good while and the rc.d scripts
459 have been updated to deal with it. There are some rules that
460 might not migrate cleanly. Use rc.firewall6 as a template to
464 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
465 attachments have been removed. Make sure to configure scc(4)
466 on sparc64. Note also that by default puc(4) will use uart(4)
467 and not sio(4) for serial ports because interrupt handling has
468 been optimized for multi-port serial cards and only uart(4)
469 implements the interface to support it.
472 The scc(4) driver replaces puc(4) for Serial Communications
473 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
474 Z8530. On sparc64, it is advised to add scc(4) to the kernel
475 configuration to make sure that the serial ports remain
479 Most world/kernel related NO_* build options changed names.
480 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
481 after FreeBSD ports) and should be set in /etc/src.conf
482 (the src.conf(5) manpage is provided). Full backwards
483 compatibility is maintained for the time being though it's
484 highly recommended to start moving old options out of the
485 system-wide /etc/make.conf file into the new /etc/src.conf
486 while also properly renaming them. More conversions will
487 likely follow. Posting to current@:
489 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
492 The NETSMBCRYPTO kernel option has been retired because its
493 functionality is always included in NETSMB and smbfs.ko now.
496 The TDFX_LINUX kernel option was retired and replaced by the
497 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
498 kernel module. Loading it alone should suffice to get 3dfx support
499 for Linux apps because it will pull in 3dfx.ko and linux.ko through
503 The 'audit' group was added to support the new auditing functionality
504 in the base system. Be sure to follow the directions for updating,
505 including the requirement to run mergemaster -p.
508 The kernel ABI to file system modules was changed on i386.
509 Please make sure that your kernel and modules are in sync.
512 This actually occured some time ago, but installing the kernel
513 now also installs a bunch of symbol files for the kernel modules.
514 This increases the size of /boot/kernel to about 67Mbytes. You
515 will need twice this if you will eventually back this up to kernel.old
516 on your next install.
517 If you have a shortage of room in your root partition, you should add
518 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
519 to your /etc/make.conf.
522 libc's malloc implementation has been replaced. This change has the
523 potential to uncover application bugs that previously went unnoticed.
524 See the malloc(3) manual page for more details.
527 The generic netgraph(4) cookie has been changed. If you upgrade
528 kernel passing this point, you also need to upgrade userland
529 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
532 si(4)'s device files now contain the unit number.
533 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
536 The kernel ABI was mostly destroyed due to a change in the size
537 of struct lock_object which is nested in other structures such
538 as mutexes which are nested in all sorts of other structures.
539 Make sure your kernel and modules are in sync.
542 The page coloring algorithm in the VM subsystem was converted
543 from tuning with kernel options to autotuning. Please remove
544 any PQ_* option except PQ_NOOPT from your kernel config.
547 The net80211-related tools in the tools/tools/ath directory
548 have been moved to tools/tools/net80211 and renamed with a
549 "wlan" prefix. Scripts that use them should be adjusted
553 Scripts in the local_startup directories (as defined in
554 /etc/defaults/rc.conf) that have the new rc.d semantics will
555 now be run as part of the base system rcorder. If there are
556 errors or problems with one of these local scripts, it could
557 cause boot problems. If you encounter such problems, boot in
558 single user mode, remove that script from the */rc.d directory.
559 Please report the problem to the port's maintainer, and the
560 freebsd-ports@freebsd.org mailing list.
563 The nodev mount option was deprecated in RELENG_6 (where it
564 was a no-op), and is now unsupported. If you have nodev or dev listed
565 in /etc/fstab, remove it, otherwise it will result in a mount error.
568 ABI between ipfw(4) and ipfw(8) has been changed. You need
569 to rebuild ipfw(8) when rebuilding kernel.
572 rp(4)'s device files now contain the unit number.
573 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
576 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
577 Its /etc/rc.conf.d configuration file has been `ppp' from
578 the beginning, and hence there is no need to touch it.
581 Now most modules get their build-time options from the kernel
582 configuration file. A few modules still have fixed options
583 due to their non-conformant implementation, but they will be
584 corrected eventually. You may need to review the options of
585 the modules in use, explicitly specify the non-default options
586 in the kernel configuration file, and rebuild the kernel and
590 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
591 to turn polling(4) on your interfaces.
594 The old bridge(4) implementation was retired. The new
595 if_bridge(4) serves as a full functional replacement.
598 The ai_addrlen of a struct addrinfo was changed to a socklen_t
599 to conform to POSIX-2001. This change broke an ABI
600 compatibility on 64 bit architecture. You have to recompile
601 userland programs that use getaddrinfo(3) on 64 bit
605 RELENG_6 branched here.
608 The pccard_ifconfig rc.conf variable has been removed and a new
609 variable, ifconfig_DEFAULT has been introduced. Unlike
610 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
611 do not have ifconfig_ifn entries rather than just those in
612 removable_interfaces.
615 Some previous versions of PAM have permitted the use of
616 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
617 to third party PAM modules in /usr/local/lib. A change has been
618 made to require the use of absolute paths in order to avoid
619 ambiguity and dependence on library path configuration, which may
620 affect existing configurations.
623 Major changes to network interface API. All drivers must be
624 recompiled. Drivers not in the base system will need to be
625 updated to the new APIs.
628 Changes were made to kinfo_proc in sys/user.h. Please recompile
629 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
630 will not behave correctly.
632 The API and ABI for hwpmc(4) have changed with the addition
633 of sampling support. Please recompile lib/libpmc(3) and
634 usr.sbin/{pmcstat,pmccontrol}.
637 The OpenBSD dhclient was imported in place of the ISC dhclient
638 and the network interface configuration scripts were updated
639 accordingly. If you use DHCP to configure your interfaces, you
640 must now run devd. Also, DNS updating was lost so you will need
641 to find a workaround if you use this feature.
643 The '_dhcp' user was added to support the OpenBSD dhclient. Be
644 sure to run mergemaster -p (like you are supposed to do every time
648 if_bridge was added to the tree. This has changed struct ifnet.
649 Please recompile userland and all network related modules.
652 The n_net of a struct netent was changed to an uint32_t, and
653 1st argument of getnetbyaddr() was changed to an uint32_t, to
654 conform to POSIX-2001. These changes broke an ABI
655 compatibility on 64 bit architecture. With these changes,
656 shlib major of libpcap was bumped. You have to recompile
657 userland programs that use getnetbyaddr(3), getnetbyname(3),
658 getnetent(3) and/or libpcap on 64 bit architecture.
661 Kernel parsing of extra options on '#!' first lines of shell
662 scripts has changed. Lines with multiple options likely will
663 fail after this date. For full details, please see
664 http://people.freebsd.org/~gad/Updating-20050528.txt
667 The packet filter (pf) code has been updated to OpenBSD 3.7
668 Please note the changed anchor syntax and the fact that
669 authpf(8) now needs a mounted fdescfs(5) to function.
672 The NO_MIXED_MODE kernel option has been removed from the i386
673 amd64 platforms as its use has been superceded by the new local
674 APIC timer code. Any kernel config files containing this option
678 The on-disk format of LC_CTYPE files was changed to be machine
679 independent. Please make sure NOT to use NO_CLEAN buildworld
680 when crossing this point. Crossing this point also requires
681 recompile or reinstall of all locale depended packages.
684 The ifi_epoch member of struct if_data has been changed to
685 contain the uptime at which the interface was created or the
686 statistics zeroed rather then the wall clock time because
687 wallclock time may go backwards. This should have no impact
688 unless an snmp implementation is using this value (I know of
692 The acpi_perf and acpi_throttle drivers are now part of the
693 acpi(4) main module. They are no longer built separately.
696 The layout of struct image_params has changed. You have to
697 recompile all compatibility modules (linux, svr4, etc) for use
701 The p4tcc driver has been merged into cpufreq(4). This makes
702 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
703 compile in "device cpufreq" to restore this functionality.
706 The responsibility of recomputing the file system summary of
707 a SoftUpdates-enabled dirty volume has been transferred to the
708 background fsck. A rebuild of fsck(8) utility is recommended
709 if you have updated the kernel.
711 To get the old behavior (recompute file system summary at mount
712 time), you can set vfs.ffs.compute_summary_at_mount=1 before
713 mounting the new volume.
716 The cpufreq import is complete. As part of this, the sysctls for
717 acpi(4) throttling have been removed. The power_profile script
718 has been updated, so you can use performance/economy_cpu_freq in
719 rc.conf(5) to set AC on/offline cpu frequencies.
722 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
723 requires recompiling libnetgraph and userland netgraph utilities.
726 Support for abbreviated forms of a number of ipfw options is
727 now deprecated. Warnings are printed to stderr indicating the
728 correct full form when a match occurs. Some abbreviations may
729 be supported at a later date based on user feedback. To be
730 considered for support, abbreviations must be in use prior to
731 this commit and unlikely to be confused with current key words.
734 By a popular demand, a lot of NOFOO options were renamed
735 to NO_FOO (see bsd.compat.mk for a full list). The old
736 spellings are still supported, but will cause annoying
737 warnings on stderr. Make sure you upgrade properly (see
738 the COMMON ITEMS: section later in this file).
741 Auto-loading of ancillary wlan modules such as wlan_wep has
742 been temporarily disabled; you need to statically configure
743 the modules you need into your kernel or explicitly load them
744 prior to use. Specifically, if you intend to use WEP encryption
745 with an 802.11 device load/configure wlan_wep; if you want to
746 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
747 and wlan_xauth as required.
750 The behaviour of ppp(8) has changed slightly. If lqr is enabled
751 (``enable lqr''), older versions would revert to LCP ECHO mode on
752 negotiation failure. Now, ``enable echo'' is required for this
753 behaviour. The ppp version number has been bumped to 3.4.2 to
757 The wlan support has been updated to split the crypto support
758 into separate modules. For static WEP you must configure the
759 wlan_wep module in your system or build and install the module
760 in place where it can be loaded (the kernel will auto-load
761 the module when a wep key is configured).
764 The ath driver has been updated to split the tx rate control
765 algorithm into a separate module. You need to include either
766 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
769 Support for systems with an 80386 CPU has been removed. Please
770 use FreeBSD 5.x or earlier on systems with an 80386.
773 We have had a hack which would mount the root filesystem
774 R/W if the device were named 'md*'. As part of the vnode
775 work I'm doing I have had to remove this hack. People
776 building systems which use preloaded MD root filesystems
777 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
778 their /etc/rc scripts.
781 FreeBSD 5.3 shipped here.
784 The size of struct tcpcb has changed again due to the removal
785 of RFC1644 T/TCP. You have to recompile userland programs that
786 read kmem for tcp sockets directly (netstat, sockstat, etc.)
789 The size of struct tcpcb has changed. You have to recompile
790 userland programs that read kmem for tcp sockets directly
791 (netstat, sockstat, etc.)
794 RELENG_5 branched here. For older entries, please see updating
795 in the RELENG_5 branch.
801 Avoid using make -j when upgrading. From time to time in the
802 past there have been problems using -j with buildworld and/or
803 installworld. This is especially true when upgrading between
804 "distant" versions (eg one that cross a major release boundary
805 or several minor releases, or when several months have passed
806 on the -current branch).
808 Sometimes, obscure build problems are the result of environment
809 poisoning. This can happen because the make utility reads its
810 environment when searching for values for global variables.
811 To run your build attempts in an "environmental clean room",
812 prefix all make commands with 'env -i '. See the env(1) manual
813 page for more details.
815 When upgrading from one major version to another it is generally
816 best to upgrade to the latest code in the currently installed branch
817 first, then do an upgrade to the new branch. This is the best-tested
818 upgrade path, and has the highest probability of being successful.
819 Please try this approach before reporting problems with a major
824 If you are updating from a prior version of FreeBSD (even one just
825 a few days old), you should follow this procedure. It is the most
826 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
828 make kernel-toolchain
829 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
830 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
832 To test a kernel once
833 ---------------------
834 If you just want to boot a kernel once (because you are not sure
835 if it works, or if you want to boot a known bad kernel to provide
836 debugging information) run
837 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
838 nextboot -k testkernel
840 To just build a kernel when you know that it won't mess you up
841 --------------------------------------------------------------
842 This assumes you are already running a 5.X system. Replace
843 ${arch} with the architecture of your machine (e.g. "i386",
844 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
846 cd src/sys/${arch}/conf
847 config KERNEL_NAME_HERE
848 cd ../compile/KERNEL_NAME_HERE
853 If this fails, go to the "To build a kernel" section.
855 To rebuild everything and install it on the current system.
856 -----------------------------------------------------------
857 # Note: sometimes if you are running current you gotta do more than
858 # is listed here if you are upgrading from a really old current.
860 <make sure you have good level 0 dumps>
862 make kernel KERNCONF=YOUR_KERNEL_HERE
864 <reboot in single user> [3]
872 To cross-install current onto a separate partition
873 --------------------------------------------------
874 # In this approach we use a separate partition to hold
875 # current's root, 'usr', and 'var' directories. A partition
876 # holding "/", "/usr" and "/var" should be about 2GB in
879 <make sure you have good level 0 dumps>
882 make buildkernel KERNCONF=YOUR_KERNEL_HERE
883 <maybe newfs current's root partition>
884 <mount current's root partition on directory ${CURRENT_ROOT}>
885 make installworld DESTDIR=${CURRENT_ROOT}
886 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
887 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
888 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
889 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
890 <reboot into current>
891 <do a "native" rebuild/install as described in the previous section>
892 <maybe install compatibility libraries from src/lib/compat>
896 To upgrade in-place from 5.x-stable to current
897 ----------------------------------------------
898 <make sure you have good level 0 dumps>
900 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
902 <reboot in single user> [3]
909 Make sure that you've read the UPDATING file to understand the
910 tweaks to various things you need. At this point in the life
911 cycle of current, things change often and you are on your own
912 to cope. The defaults can also change, so please read ALL of
913 the UPDATING entries.
915 Also, if you are tracking -current, you must be subscribed to
916 freebsd-current@freebsd.org. Make sure that before you update
917 your sources that you have read and understood all the recent
918 messages there. If in doubt, please track -stable which has
921 [1] If you have third party modules, such as vmware, you
922 should disable them at this point so they don't crash your
925 [3] From the bootblocks, boot -s, and then do
930 adjkerntz -i # if CMOS is wall time
931 Also, when doing a major release upgrade, it is required that
932 you boot into single user mode to do the installworld.
934 [4] Note: This step is non-optional. Failure to do this step
935 can result in a significant reduction in the functionality of the
936 system. Attempting to do it by hand is not recommended and those
937 that pursue this avenue should read this file carefully, as well
938 as the archives of freebsd-current and freebsd-hackers mailing lists
939 for potential gotchas.
941 [5] Usually this step is a noop. However, from time to time
942 you may need to do this if you get unknown user in the following
943 step. It never hurts to do it all the time. You may need to
944 install a new mergemaster (cd src/usr.sbin/mergemaster && make
945 install) after the buildworld before this step if you last updated
946 from current before 20020224 or from -stable before 20020408.
948 [8] In order to have a kernel that can run the 4.x binaries
949 needed to do an installworld, you must include the COMPAT_FREEBSD4
950 option in your kernel. Failure to do so may leave you with a system
951 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
952 is required to run the 5.x binaries on more recent kernels.
954 Make sure that you merge any new devices from GENERIC since the
955 last time you updated your kernel config file.
957 [9] When checking out sources, you must include the -P flag to have
958 cvs prune empty directories.
960 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
961 "?=" instead of the "=" assignment operator, so that buildworld can
962 override the CPUTYPE if it needs to.
964 MAKEOBJDIRPREFIX must be defined in an environment variable, and
965 not on the command line, or in /etc/make.conf. buildworld will
966 warn if it is improperly defined.
969 This file contains a list, in reverse chronological order, of major
970 breakages in tracking -current. Not all things will be listed here,
971 and it only starts on October 16, 2004. Updating files can found in
972 previous releases if your system is older than this.
974 Copyright information:
976 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
978 Redistribution, publication, translation and use, with or without
979 modification, in full or in part, in any form or format of this
980 document are permitted without further permission from the author.
982 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
983 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
984 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
985 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
986 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
987 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
988 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
989 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
990 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
991 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
992 POSSIBILITY OF SUCH DAMAGE.
994 If you find this document useful, and you want to, you may buy the
997 Contact Warner Losh if you have any questions about your use of