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 latest em driver no longer has support in it for the
27 82575 adapter, this is now moved to the igb driver. The
28 split was done to make new features that are incompatible
29 with older hardware easier to do.
32 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
33 likewise the kernel option is now GEOM_LINUX_LVM.
36 The default NFS mount mode has changed from UDP to TCP for
37 increased reliability. If you rely on (insecurely) NFS
38 mounting across a firewall you may need to update your
42 Belatedly note the addition of m_collapse for compacting
46 The fts(3) structures have been changed to use adequate
47 integer types for their members and so to be able to cope
48 with huge file trees. The old fts(3) ABI is preserved
49 through symbol versioning in libc, so third-party binaries
50 using fts(3) should still work, although they will not take
51 advantage of the extended types. At the same time, some
52 third-party software might fail to build after this change
53 due to unportable assumptions made in its source code about
54 fts(3) structure members. Such software should be fixed
55 by its vendor or, in the worst case, in the ports tree.
56 FreeBSD_version 800015 marks this change for the unlikely
57 case that a portable fix is impossible.
60 To upgrade to -current after this date, you must be running
61 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
62 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
65 The ADAPTIVE_GIANT kernel option has been retired because its
66 functionality is the default now.
69 The AT keyboard emulation of sunkbd(4) has been turned on
70 by default. In order to make the special symbols of the Sun
71 keyboards driven by sunkbd(4) work under X these now have
72 to be configured the same way as Sun USB keyboards driven
73 by ukbd(4) (which also does AT keyboard emulation), f.e.:
75 Option "XkbLayout" "us"
76 Option "XkbRules" "xorg"
77 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
80 It has been decided that it is desirable to provide ABI
81 backwards compatibility to the FreeBSD 4/5/6 versions of the
82 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
83 broken with the introduction of PCI domain support (see the
84 20070930 entry). Unfortunately, this required the ABI of
85 PCIOCGETCONF to be broken again in order to be able to
86 provide backwards compatibility to the old version of that
87 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
88 again. As for prominent ports this affects neither pciutils
89 nor xorg-server this time, the hal port needs to be rebuilt
93 The misnamed kthread_create() and friends have been renamed
94 to kproc_create() etc. Many of the callers already
96 I will return kthread_create() and friends in a while
97 with implementations that actually create threads, not procs.
98 Renaming corresponds with version 800002.
104 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
105 WITHOUT_LIBTHR are set.
108 The PCI code has been made aware of PCI domains. This means that
109 the location strings as used by pciconf(8) etc are now in the
110 following format: pci<domain>:<bus>:<device>[:<function>]. It
111 also means that consumers of <sys/pciio.h> potentially need to
112 be recompiled; this includes the hal and xorg-server ports.
115 The caching daemon (cached) was renamed to nscd. nscd.conf
116 configuration file should be used instead of cached.conf and
117 nscd_enable, nscd_pidfile and nscd_flags options should be used
118 instead of cached_enable, cached_pidfile and cached_flags in
122 The getfacl(1) utility now prints owning user and group name
123 instead of owning uid and gid in the three line comment header.
124 This is the same behavior as getfacl(1) on Solaris and Linux.
127 The new IPsec code is now compiled in using the IPSEC option. The
128 IPSEC option now requires "device crypto" be defined in your kernel
129 configuration. The FAST_IPSEC kernel option is now deprecated.
132 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
133 note the changed syntax - keep state is now on by default. Also
134 note the fact that ftp-proxy(8) has been changed from bottom up and
135 has been moved from libexec to usr/sbin. Changes in the ALTQ
136 handling also affect users of IPFW's ALTQ capabilities.
139 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
140 only IPsec supported by FreeBSD. The new IPsec stack
141 supports both IPv4 and IPv6. The kernel option will change
142 after the code changes have settled in. For now the kernel
143 option IPSEC is deprecated and FAST_IPSEC is the only option, that
144 will change after some settling time.
147 The wicontrol(8) utility has been removed from the base system. wi(4)
148 cards should be configured using ifconfig(8), see the man page for more
152 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
153 instead of the nve(4) driver. Please update your configuration
157 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
158 database if it is missing or older than the aliases file. If
159 desired, set the new rc.conf option sendmail_rebuild_aliases
160 to "YES" to restore that functionality.
163 The IPv4 multicast socket code has been considerably modified, and
164 moved to the file sys/netinet/in_mcast.c. Initial support for the
165 RFC 3678 Source-Specific Multicast Socket API has been added to
166 the IPv4 network stack.
168 Strict multicast and broadcast reception is now the default for
169 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
170 has now been removed.
172 The RFC 1724 hack for interface selection has been removed; the use
173 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
174 been added to replace it. Consumers such as routed will soon be
175 updated to reflect this.
177 These changes affect users who are running routed(8) or rdisc(8)
178 from the FreeBSD base system on point-to-point or unnumbered
182 The net80211 layer has changed significantly and all wireless
183 drivers that depend on it need to be recompiled. Further these
184 changes require that any program that interacts with the wireless
185 support in the kernel be recompiled; this includes: ifconfig,
186 wpa_supplicant, hostapd, and wlanstats. Users must also, for
187 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
188 if they use modules for wireless support. These modules implement
189 scanning support for station and ap modes, respectively. Failure
190 to load the appropriate module before marking a wireless interface
191 up will result in a message to the console and the device not
195 The pam_nologin(8) module ceases to provide an authentication
196 function and starts providing an account management function.
197 Consequent changes to /etc/pam.d should be brought in using
198 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
199 need manual editing as follows. Locate this line (or similar):
201 auth required pam_nologin.so no_warn
203 and change it according to this example:
205 account required pam_nologin.so no_warn
207 That is, the first word needs to be changed from "auth" to
208 "account". The new line can be moved to the account section
209 within the file for clarity. Not updating pam.conf(5) files
210 will result in nologin(5) ignored by the respective services.
213 The ether_ioctl() function has been synchronized with ioctl(2)
214 and ifnet.if_ioctl. Due to that, the size of one of its arguments
215 has changed on 64-bit architectures. All kernel modules using
216 ether_ioctl() need to be rebuilt on such architectures.
219 Improved INCLUDE_CONFIG_FILE support has been introduced to the
220 config(8) utility. In order to take advantage of this new
221 functionality, you are expected to recompile and install
222 src/usr.sbin/config. If you don't rebuild config(8), and your
223 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
224 build will be broken because of a missing "kernconfstring"
228 Symbol versioning is enabled by default. To disable it, use
229 option WITHOUT_SYMVER. It is not advisable to attempt to
230 disable symbol versioning once it is enabled; your installworld
231 will break because a symbol version-less libc will get installed
232 before the install tools. As a result, the old install tools,
233 which previously had symbol dependencies to FBSD_1.0, will fail
234 because the freshly installed libc will not have them.
236 The default threading library (providing "libpthread") has been
237 changed to libthr. If you wish to have libkse as your default,
238 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
241 The ABI breakage in sendmail(8)'s libmilter has been repaired
242 so it is no longer necessary to recompile mail filters (aka,
243 milters). If you recompiled mail filters after the 20070408
244 note, it is not necessary to recompile them again.
247 The new trunk(4) driver has been renamed to lagg(4) as it better
248 reflects its purpose. ifconfig will need to be recompiled.
251 sendmail(8) has been updated to version 8.14.1. Mail filters
252 (aka, milters) compiled against the libmilter included in the
253 base operating system should be recompiled.
256 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
257 In order to use them one must agree to the respective LICENSE in
258 share/doc/legal and define legal.intel_<name>.license_ack=1 via
259 loader.conf(5) or kenv(1). Make sure to deinstall the now
260 deprecated modules from the respective firmware ports.
263 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
264 were removed from FreeBSD's libc. These originally came from INRIA
265 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
266 deprecated in previous releases.
267 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
268 replace it as a more portable (and re-entrant) API.
271 To support interrupt filtering a modification to the newbus API
272 has occurred, ABI was broken and __FreeBSD_version was bumped
273 to 700031. Please make sure that your kernel and modules are in
275 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
278 The IPv6 multicast forwarding code may now be loaded into GENERIC
279 kernels by loading the ip_mroute.ko module. This is built into the
280 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
281 set; see src.conf(5) for more information.
284 The output of netstat -r has changed. Without -n, we now only
285 print a "network name" without the prefix length if the network
286 address and mask exactly match a Class A/B/C network, and an entry
287 exists in the nsswitch "networks" map.
288 With -n, we print the full unabbreviated CIDR network prefix in
289 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
290 This change is in preparation for changes such as equal-cost
291 multipath, and to more generally assist operational deployment
292 of FreeBSD as a modern IPv4 router.
295 PIM has been turned on by default in the IPv4 multicast
296 routing code. The kernel option 'PIM' has now been removed.
297 PIM is now built by default if option 'MROUTING' is specified.
298 It may now be loaded into GENERIC kernels by loading the
302 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
303 has been removed. Its functionality may be achieved by explicitly
304 configuring gif(4) interfaces and using the 'phyint' keyword in
306 XORP does not support source-routed IPv4 multicast tunnels nor the
307 integrated IPIP tunneling, therefore it is not affected by this
308 change. The __FreeBSD_version macro has been bumped to 700030.
311 Support for PCI Message Signalled Interrupts has been
312 re-enabled in the bge driver, only for those chips which are
313 believed to support it properly. If there are any problems,
314 MSI can be disabled completely by setting the
315 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
319 Support for PCI Message Signalled Interrupts has been
320 disabled again in the bge driver. Many revisions of the
321 hardware fail to support it properly. Support can be
322 re-enabled by removing the #define of BGE_DISABLE_MSI in
323 "src/sys/dev/bge/if_bge.c".
326 Support for PCI Message Signalled Interrupts has been added
327 to the bge driver. If there are any problems, MSI can be
328 disabled completely by setting the 'hw.pci.enable_msi' and
329 'hw.pci.enable_msix' tunables to 0 in the loader.
332 The removal of several facets of the experimental Threading
333 system from the kernel means that the proc and thread structures
334 have changed quite a bit. I suggest all kernel modules that might
335 reference these structures be recompiled.. Especially the
339 Sound infrastructure has been updated with various fixes and
340 improvements. Most of the changes are pretty much transparent,
341 with exceptions of followings:
342 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
343 moved to their own dev sysctl nodes, for example:
344 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
345 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
346 own chardev in the form of "dsp%d.<function>%d", where <function>
347 is p = playback, r = record and v = virtual, respectively. Users
348 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
349 This does not affect those who are using "/dev/dsp".
352 The following binaries have been disconnected from the build:
353 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
354 and mount_std. The functionality of these programs has been
355 moved into the mount program. For example, to mount a devfs
356 filesystem, instead of using mount_devfs, use: "mount -t devfs".
357 This does not affect entries in /etc/fstab, since entries in
358 /etc/fstab are always processed with "mount -t fstype".
361 Support for PCI Message Signalled Interrupts on i386 and amd64
362 has been added to the kernel and various drivers will soon be
363 updated to use MSI when it is available. If there are any problems,
364 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
365 and 'hw.pci.enable_msix' tunables to 0 in the loader.
368 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
369 The lockmgr object layout has been changed as a result of having
370 a lock_object embedded in it. As a consequence all file system
371 kernel modules must be re-compiled. The mutex profiling man page
372 has not yet been updated to reflect this change.
375 KSE in the kernel has now been made optional and turned on by
376 default. Use 'nooption KSE' in your kernel config to turn it
377 off. All kernel modules *must* be recompiled after this change.
378 There-after, modules from a KSE kernel should be compatible with
379 modules from a NOKSE kernel due to the temporary padding fields
380 added to 'struct proc'.
383 mrouted and its utilities have been removed from the base system.
386 Some ioctl(2) command codes have changed. Full backward ABI
387 compatibility is provided if the "options COMPAT_FREEBSD6" is
388 present in the kernel configuration file. Make sure to add
389 this option to your kernel config file, or recompile X.Org
390 and the rest of ports; otherwise they may refuse to work.
393 tcpslice has been removed from the base system.
396 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
397 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
398 systat needs to be rebuilt.
401 libpcap updated to v0.9.4 and tcpdump to v3.9.4
404 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
405 for IPFIREWALL_FORWARD is now as it was before when it was first
406 committed and for years after. The behaviour is now ON.
409 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
410 Now it can decrypt files created from different architectures.
411 Unfortunately, it is no longer able to decrypt a cipher text
412 generated with an older version on 64 bit architectures.
413 If you have such a file, you need old utility to decrypt it.
416 The interface version of the i4b kernel part has changed. So
417 after updating the kernel sources and compiling a new kernel,
418 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
419 be rebuilt, and vice versa.
422 The XBOX kernel now defaults to the nfe(4) driver instead of
423 the nve(4) driver. Please update your configuration
427 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
428 PCnet family of NICs has been removed. The new le(4) driver serves
429 as an equivalent but cross-platform replacement with the pcn(4)
430 driver still providing performance-optimized support for the subset
431 of AMD Am79C971 PCnet-FAST and greater chips as before.
434 The machdep.* sysctls and the adjkerntz utility have been
435 modified a bit. The new adjkerntz utility uses the new
436 sysctl names and sysctlbyname() calls, so it may be impossible
437 to run an old /sbin/adjkerntz utility in single-user mode
438 with a new kernel. Replace the `adjkerntz -i' step before
439 `make installworld' with:
441 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
443 and proceed as usual with the rest of the installworld-stage
444 steps. Otherwise, you risk installing binaries with their
445 timestamp set several hours in the future, especially if
446 you are running with local time set to GMT+X hours.
449 The ip6fw utility has been removed. The behavior provided by
450 ip6fw has been in ipfw2 for a good while and the rc.d scripts
451 have been updated to deal with it. There are some rules that
452 might not migrate cleanly. Use rc.firewall6 as a template to
456 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
457 attachments have been removed. Make sure to configure scc(4)
458 on sparc64. Note also that by default puc(4) will use uart(4)
459 and not sio(4) for serial ports because interrupt handling has
460 been optimized for multi-port serial cards and only uart(4)
461 implements the interface to support it.
464 The scc(4) driver replaces puc(4) for Serial Communications
465 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
466 Z8530. On sparc64, it is advised to add scc(4) to the kernel
467 configuration to make sure that the serial ports remain
471 Most world/kernel related NO_* build options changed names.
472 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
473 after FreeBSD ports) and should be set in /etc/src.conf
474 (the src.conf(5) manpage is provided). Full backwards
475 compatibility is maintained for the time being though it's
476 highly recommended to start moving old options out of the
477 system-wide /etc/make.conf file into the new /etc/src.conf
478 while also properly renaming them. More conversions will
479 likely follow. Posting to current@:
481 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
484 The NETSMBCRYPTO kernel option has been retired because its
485 functionality is always included in NETSMB and smbfs.ko now.
488 The TDFX_LINUX kernel option was retired and replaced by the
489 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
490 kernel module. Loading it alone should suffice to get 3dfx support
491 for Linux apps because it will pull in 3dfx.ko and linux.ko through
495 The 'audit' group was added to support the new auditing functionality
496 in the base system. Be sure to follow the directions for updating,
497 including the requirement to run mergemaster -p.
500 The kernel ABI to file system modules was changed on i386.
501 Please make sure that your kernel and modules are in sync.
504 This actually occured some time ago, but installing the kernel
505 now also installs a bunch of symbol files for the kernel modules.
506 This increases the size of /boot/kernel to about 67Mbytes. You
507 will need twice this if you will eventually back this up to kernel.old
508 on your next install.
509 If you have a shortage of room in your root partition, you should add
510 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
511 to your /etc/make.conf.
514 libc's malloc implementation has been replaced. This change has the
515 potential to uncover application bugs that previously went unnoticed.
516 See the malloc(3) manual page for more details.
519 The generic netgraph(4) cookie has been changed. If you upgrade
520 kernel passing this point, you also need to upgrade userland
521 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
524 si(4)'s device files now contain the unit number.
525 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
528 The kernel ABI was mostly destroyed due to a change in the size
529 of struct lock_object which is nested in other structures such
530 as mutexes which are nested in all sorts of other structures.
531 Make sure your kernel and modules are in sync.
534 The page coloring algorithm in the VM subsystem was converted
535 from tuning with kernel options to autotuning. Please remove
536 any PQ_* option except PQ_NOOPT from your kernel config.
539 The net80211-related tools in the tools/tools/ath directory
540 have been moved to tools/tools/net80211 and renamed with a
541 "wlan" prefix. Scripts that use them should be adjusted
545 Scripts in the local_startup directories (as defined in
546 /etc/defaults/rc.conf) that have the new rc.d semantics will
547 now be run as part of the base system rcorder. If there are
548 errors or problems with one of these local scripts, it could
549 cause boot problems. If you encounter such problems, boot in
550 single user mode, remove that script from the */rc.d directory.
551 Please report the problem to the port's maintainer, and the
552 freebsd-ports@freebsd.org mailing list.
555 The nodev mount option was deprecated in RELENG_6 (where it
556 was a no-op), and is now unsupported. If you have nodev or dev listed
557 in /etc/fstab, remove it, otherwise it will result in a mount error.
560 ABI between ipfw(4) and ipfw(8) has been changed. You need
561 to rebuild ipfw(8) when rebuilding kernel.
564 rp(4)'s device files now contain the unit number.
565 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
568 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
569 Its /etc/rc.conf.d configuration file has been `ppp' from
570 the beginning, and hence there is no need to touch it.
573 Now most modules get their build-time options from the kernel
574 configuration file. A few modules still have fixed options
575 due to their non-conformant implementation, but they will be
576 corrected eventually. You may need to review the options of
577 the modules in use, explicitly specify the non-default options
578 in the kernel configuration file, and rebuild the kernel and
582 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
583 to turn polling(4) on your interfaces.
586 The old bridge(4) implementation was retired. The new
587 if_bridge(4) serves as a full functional replacement.
590 The ai_addrlen of a struct addrinfo was changed to a socklen_t
591 to conform to POSIX-2001. This change broke an ABI
592 compatibility on 64 bit architecture. You have to recompile
593 userland programs that use getaddrinfo(3) on 64 bit
597 RELENG_6 branched here.
600 The pccard_ifconfig rc.conf variable has been removed and a new
601 variable, ifconfig_DEFAULT has been introduced. Unlike
602 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
603 do not have ifconfig_ifn entries rather than just those in
604 removable_interfaces.
607 Some previous versions of PAM have permitted the use of
608 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
609 to third party PAM modules in /usr/local/lib. A change has been
610 made to require the use of absolute paths in order to avoid
611 ambiguity and dependence on library path configuration, which may
612 affect existing configurations.
615 Major changes to network interface API. All drivers must be
616 recompiled. Drivers not in the base system will need to be
617 updated to the new APIs.
620 Changes were made to kinfo_proc in sys/user.h. Please recompile
621 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
622 will not behave correctly.
624 The API and ABI for hwpmc(4) have changed with the addition
625 of sampling support. Please recompile lib/libpmc(3) and
626 usr.sbin/{pmcstat,pmccontrol}.
629 The OpenBSD dhclient was imported in place of the ISC dhclient
630 and the network interface configuration scripts were updated
631 accordingly. If you use DHCP to configure your interfaces, you
632 must now run devd. Also, DNS updating was lost so you will need
633 to find a workaround if you use this feature.
635 The '_dhcp' user was added to support the OpenBSD dhclient. Be
636 sure to run mergemaster -p (like you are supposed to do every time
640 if_bridge was added to the tree. This has changed struct ifnet.
641 Please recompile userland and all network related modules.
644 The n_net of a struct netent was changed to an uint32_t, and
645 1st argument of getnetbyaddr() was changed to an uint32_t, to
646 conform to POSIX-2001. These changes broke an ABI
647 compatibility on 64 bit architecture. With these changes,
648 shlib major of libpcap was bumped. You have to recompile
649 userland programs that use getnetbyaddr(3), getnetbyname(3),
650 getnetent(3) and/or libpcap on 64 bit architecture.
653 Kernel parsing of extra options on '#!' first lines of shell
654 scripts has changed. Lines with multiple options likely will
655 fail after this date. For full details, please see
656 http://people.freebsd.org/~gad/Updating-20050528.txt
659 The packet filter (pf) code has been updated to OpenBSD 3.7
660 Please note the changed anchor syntax and the fact that
661 authpf(8) now needs a mounted fdescfs(5) to function.
664 The NO_MIXED_MODE kernel option has been removed from the i386
665 amd64 platforms as its use has been superceded by the new local
666 APIC timer code. Any kernel config files containing this option
670 The on-disk format of LC_CTYPE files was changed to be machine
671 independent. Please make sure NOT to use NO_CLEAN buildworld
672 when crossing this point. Crossing this point also requires
673 recompile or reinstall of all locale depended packages.
676 The ifi_epoch member of struct if_data has been changed to
677 contain the uptime at which the interface was created or the
678 statistics zeroed rather then the wall clock time because
679 wallclock time may go backwards. This should have no impact
680 unless an snmp implementation is using this value (I know of
684 The acpi_perf and acpi_throttle drivers are now part of the
685 acpi(4) main module. They are no longer built separately.
688 The layout of struct image_params has changed. You have to
689 recompile all compatibility modules (linux, svr4, etc) for use
693 The p4tcc driver has been merged into cpufreq(4). This makes
694 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
695 compile in "device cpufreq" to restore this functionality.
698 The responsibility of recomputing the file system summary of
699 a SoftUpdates-enabled dirty volume has been transferred to the
700 background fsck. A rebuild of fsck(8) utility is recommended
701 if you have updated the kernel.
703 To get the old behavior (recompute file system summary at mount
704 time), you can set vfs.ffs.compute_summary_at_mount=1 before
705 mounting the new volume.
708 The cpufreq import is complete. As part of this, the sysctls for
709 acpi(4) throttling have been removed. The power_profile script
710 has been updated, so you can use performance/economy_cpu_freq in
711 rc.conf(5) to set AC on/offline cpu frequencies.
714 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
715 requires recompiling libnetgraph and userland netgraph utilities.
718 Support for abbreviated forms of a number of ipfw options is
719 now deprecated. Warnings are printed to stderr indicating the
720 correct full form when a match occurs. Some abbreviations may
721 be supported at a later date based on user feedback. To be
722 considered for support, abbreviations must be in use prior to
723 this commit and unlikely to be confused with current key words.
726 By a popular demand, a lot of NOFOO options were renamed
727 to NO_FOO (see bsd.compat.mk for a full list). The old
728 spellings are still supported, but will cause annoying
729 warnings on stderr. Make sure you upgrade properly (see
730 the COMMON ITEMS: section later in this file).
733 Auto-loading of ancillary wlan modules such as wlan_wep has
734 been temporarily disabled; you need to statically configure
735 the modules you need into your kernel or explicitly load them
736 prior to use. Specifically, if you intend to use WEP encryption
737 with an 802.11 device load/configure wlan_wep; if you want to
738 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
739 and wlan_xauth as required.
742 The behaviour of ppp(8) has changed slightly. If lqr is enabled
743 (``enable lqr''), older versions would revert to LCP ECHO mode on
744 negotiation failure. Now, ``enable echo'' is required for this
745 behaviour. The ppp version number has been bumped to 3.4.2 to
749 The wlan support has been updated to split the crypto support
750 into separate modules. For static WEP you must configure the
751 wlan_wep module in your system or build and install the module
752 in place where it can be loaded (the kernel will auto-load
753 the module when a wep key is configured).
756 The ath driver has been updated to split the tx rate control
757 algorithm into a separate module. You need to include either
758 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
761 Support for systems with an 80386 CPU has been removed. Please
762 use FreeBSD 5.x or earlier on systems with an 80386.
765 We have had a hack which would mount the root filesystem
766 R/W if the device were named 'md*'. As part of the vnode
767 work I'm doing I have had to remove this hack. People
768 building systems which use preloaded MD root filesystems
769 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
770 their /etc/rc scripts.
773 FreeBSD 5.3 shipped here.
776 The size of struct tcpcb has changed again due to the removal
777 of RFC1644 T/TCP. You have to recompile userland programs that
778 read kmem for tcp sockets directly (netstat, sockstat, etc.)
781 The size of struct tcpcb has changed. You have to recompile
782 userland programs that read kmem for tcp sockets directly
783 (netstat, sockstat, etc.)
786 RELENG_5 branched here. For older entries, please see updating
787 in the RELENG_5 branch.
793 Avoid using make -j when upgrading. From time to time in the
794 past there have been problems using -j with buildworld and/or
795 installworld. This is especially true when upgrading between
796 "distant" versions (eg one that cross a major release boundary
797 or several minor releases, or when several months have passed
798 on the -current branch).
800 Sometimes, obscure build problems are the result of environment
801 poisoning. This can happen because the make utility reads its
802 environment when searching for values for global variables.
803 To run your build attempts in an "environmental clean room",
804 prefix all make commands with 'env -i '. See the env(1) manual
805 page for more details.
807 When upgrading from one major version to another it is generally
808 best to upgrade to the latest code in the currently installed branch
809 first, then do an upgrade to the new branch. This is the best-tested
810 upgrade path, and has the highest probability of being successful.
811 Please try this approach before reporting problems with a major
816 If you are updating from a prior version of FreeBSD (even one just
817 a few days old), you should follow this procedure. It is the most
818 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
820 make kernel-toolchain
821 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
822 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
824 To test a kernel once
825 ---------------------
826 If you just want to boot a kernel once (because you are not sure
827 if it works, or if you want to boot a known bad kernel to provide
828 debugging information) run
829 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
830 nextboot -k testkernel
832 To just build a kernel when you know that it won't mess you up
833 --------------------------------------------------------------
834 This assumes you are already running a 5.X system. Replace
835 ${arch} with the architecture of your machine (e.g. "i386",
836 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
838 cd src/sys/${arch}/conf
839 config KERNEL_NAME_HERE
840 cd ../compile/KERNEL_NAME_HERE
845 If this fails, go to the "To build a kernel" section.
847 To rebuild everything and install it on the current system.
848 -----------------------------------------------------------
849 # Note: sometimes if you are running current you gotta do more than
850 # is listed here if you are upgrading from a really old current.
852 <make sure you have good level 0 dumps>
854 make kernel KERNCONF=YOUR_KERNEL_HERE
856 <reboot in single user> [3]
864 To cross-install current onto a separate partition
865 --------------------------------------------------
866 # In this approach we use a separate partition to hold
867 # current's root, 'usr', and 'var' directories. A partition
868 # holding "/", "/usr" and "/var" should be about 2GB in
871 <make sure you have good level 0 dumps>
874 make buildkernel KERNCONF=YOUR_KERNEL_HERE
875 <maybe newfs current's root partition>
876 <mount current's root partition on directory ${CURRENT_ROOT}>
877 make installworld DESTDIR=${CURRENT_ROOT}
878 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
879 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
880 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
881 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
882 <reboot into current>
883 <do a "native" rebuild/install as described in the previous section>
884 <maybe install compatibility libraries from src/lib/compat>
888 To upgrade in-place from 5.x-stable to current
889 ----------------------------------------------
890 <make sure you have good level 0 dumps>
892 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
894 <reboot in single user> [3]
901 Make sure that you've read the UPDATING file to understand the
902 tweaks to various things you need. At this point in the life
903 cycle of current, things change often and you are on your own
904 to cope. The defaults can also change, so please read ALL of
905 the UPDATING entries.
907 Also, if you are tracking -current, you must be subscribed to
908 freebsd-current@freebsd.org. Make sure that before you update
909 your sources that you have read and understood all the recent
910 messages there. If in doubt, please track -stable which has
913 [1] If you have third party modules, such as vmware, you
914 should disable them at this point so they don't crash your
917 [3] From the bootblocks, boot -s, and then do
922 adjkerntz -i # if CMOS is wall time
923 Also, when doing a major release upgrade, it is required that
924 you boot into single user mode to do the installworld.
926 [4] Note: This step is non-optional. Failure to do this step
927 can result in a significant reduction in the functionality of the
928 system. Attempting to do it by hand is not recommended and those
929 that pursue this avenue should read this file carefully, as well
930 as the archives of freebsd-current and freebsd-hackers mailing lists
931 for potential gotchas.
933 [5] Usually this step is a noop. However, from time to time
934 you may need to do this if you get unknown user in the following
935 step. It never hurts to do it all the time. You may need to
936 install a new mergemaster (cd src/usr.sbin/mergemaster && make
937 install) after the buildworld before this step if you last updated
938 from current before 20020224 or from -stable before 20020408.
940 [8] In order to have a kernel that can run the 4.x binaries
941 needed to do an installworld, you must include the COMPAT_FREEBSD4
942 option in your kernel. Failure to do so may leave you with a system
943 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
944 is required to run the 5.x binaries on more recent kernels.
946 Make sure that you merge any new devices from GENERIC since the
947 last time you updated your kernel config file.
949 [9] When checking out sources, you must include the -P flag to have
950 cvs prune empty directories.
952 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
953 "?=" instead of the "=" assignment operator, so that buildworld can
954 override the CPUTYPE if it needs to.
956 MAKEOBJDIRPREFIX must be defined in an environment variable, and
957 not on the command line, or in /etc/make.conf. buildworld will
958 warn if it is improperly defined.
961 This file contains a list, in reverse chronological order, of major
962 breakages in tracking -current. Not all things will be listed here,
963 and it only starts on October 16, 2004. Updating files can found in
964 previous releases if your system is older than this.
966 Copyright information:
968 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
970 Redistribution, publication, translation and use, with or without
971 modification, in full or in part, in any form or format of this
972 document are permitted without further permission from the author.
974 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
975 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
976 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
977 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
978 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
979 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
980 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
981 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
982 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
983 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
984 POSSIBILITY OF SUCH DAMAGE.
986 If you find this document useful, and you want to, you may buy the
989 Contact Warner Losh if you have any questions about your use of