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.
25 The ADAPTIVE_GIANT kernel option has been retired because its
26 functionality is the default now.
29 The AT keyboard emulation of sunkbd(4) has been turned on
30 by default. In order to make the special symbols of the Sun
31 keyboards driven by sunkbd(4) work under X these now have
32 to be configured the same way as Sun USB keyboards driven
33 by ukbd(4) (which also does AT keyboard emulation), f.e.:
35 Option "XkbLayout" "us"
36 Option "XkbRules" "xorg"
37 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
40 It has been decided that it is desirable to provide ABI
41 backwards compatibility to the FreeBSD 4/5/6 versions of the
42 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
43 broken with the introduction of PCI domain support (see the
44 20070930 entry). Unfortunately, this required the ABI of
45 PCIOCGETCONF to be broken again in order to be able to
46 provide backwards compatibility to the old version of that
47 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
48 again. As for prominent ports this affects neither pciutils
49 nor xorg-server this time, the hal port needs to be rebuilt
53 The misnamed kthread_create() and friends have been renamed
54 to kproc_create() etc. Many of the callers already
56 I will return kthread_create() and friends in a while
57 with implementations that actually create threads, not procs.
58 Renaming corresponds with version 800002.
64 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
65 WITHOUT_LIBTHR are set.
68 The PCI code has been made aware of PCI domains. This means that
69 the location strings as used by pciconf(8) etc are now in the
70 following format: pci<domain>:<bus>:<device>[:<function>]. It
71 also means that consumers of <sys/pciio.h> potentially need to
72 be recompiled; this includes the hal and xorg-server ports.
75 The caching daemon (cached) was renamed to nscd. nscd.conf
76 configuration file should be used instead of cached.conf and
77 nscd_enable, nscd_pidfile and nscd_flags options should be used
78 instead of cached_enable, cached_pidfile and cached_flags in
82 The getfacl(1) utility now prints owning user and group name
83 instead of owning uid and gid in the three line comment header.
84 This is the same behavior as getfacl(1) on Solaris and Linux.
87 The new IPsec code is now compiled in using the IPSEC option. The
88 IPSEC option now requires "device crypto" be defined in your kernel
89 configuration. The FAST_IPSEC kernel option is now deprecated.
92 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
93 note the changed syntax - keep state is now on by default. Also
94 note the fact that ftp-proxy(8) has been changed from bottom up and
95 has been moved from libexec to usr/sbin. Changes in the ALTQ
96 handling also affect users of IPFW's ALTQ capabilities.
99 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
100 only IPsec supported by FreeBSD. The new IPsec stack
101 supports both IPv4 and IPv6. The kernel option will change
102 after the code changes have settled in. For now the kernel
103 option IPSEC is deprecated and FAST_IPSEC is the only option, that
104 will change after some settling time.
107 The wicontrol(8) utility has been removed from the base system. wi(4)
108 cards should be configured using ifconfig(8), see the man page for more
112 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
113 instead of the nve(4) driver. Please update your configuration
117 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
118 database if it is missing or older than the aliases file. If
119 desired, set the new rc.conf option sendmail_rebuild_aliases
120 to "YES" to restore that functionality.
123 The IPv4 multicast socket code has been considerably modified, and
124 moved to the file sys/netinet/in_mcast.c. Initial support for the
125 RFC 3678 Source-Specific Multicast Socket API has been added to
126 the IPv4 network stack.
128 Strict multicast and broadcast reception is now the default for
129 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
130 has now been removed.
132 The RFC 1724 hack for interface selection has been removed; the use
133 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
134 been added to replace it. Consumers such as routed will soon be
135 updated to reflect this.
137 These changes affect users who are running routed(8) or rdisc(8)
138 from the FreeBSD base system on point-to-point or unnumbered
142 The net80211 layer has changed significantly and all wireless
143 drivers that depend on it need to be recompiled. Further these
144 changes require that any program that interacts with the wireless
145 support in the kernel be recompiled; this includes: ifconfig,
146 wpa_supplicant, hostapd, and wlanstats. Users must also, for
147 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
148 if they use modules for wireless support. These modules implement
149 scanning support for station and ap modes, respectively. Failure
150 to load the appropriate module before marking a wireless interface
151 up will result in a message to the console and the device not
155 The pam_nologin(8) module ceases to provide an authentication
156 function and starts providing an account management function.
157 Consequent changes to /etc/pam.d should be brought in using
158 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
159 need manual editing as follows. Locate this line (or similar):
161 auth required pam_nologin.so no_warn
163 and change it according to this example:
165 account required pam_nologin.so no_warn
167 That is, the first word needs to be changed from "auth" to
168 "account". The new line can be moved to the account section
169 within the file for clarity. Not updating pam.conf(5) files
170 will result in nologin(5) ignored by the respective services.
173 The ether_ioctl() function has been synchronized with ioctl(2)
174 and ifnet.if_ioctl. Due to that, the size of one of its arguments
175 has changed on 64-bit architectures. All kernel modules using
176 ether_ioctl() need to be rebuilt on such architectures.
179 Improved INCLUDE_CONFIG_FILE support has been introduced to the
180 config(8) utility. In order to take advantage of this new
181 functionality, you are expected to recompile and install
182 src/usr.sbin/config. If you don't rebuild config(8), and your
183 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
184 build will be broken because of a missing "kernconfstring"
188 Symbol versioning is enabled by default. To disable it, use
189 option WITHOUT_SYMVER. It is not advisable to attempt to
190 disable symbol versioning once it is enabled; your installworld
191 will break because a symbol version-less libc will get installed
192 before the install tools. As a result, the old install tools,
193 which previously had symbol dependencies to FBSD_1.0, will fail
194 because the freshly installed libc will not have them.
196 The default threading library (providing "libpthread") has been
197 changed to libthr. If you wish to have libkse as your default,
198 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
201 The ABI breakage in sendmail(8)'s libmilter has been repaired
202 so it is no longer necessary to recompile mail filters (aka,
203 milters). If you recompiled mail filters after the 20070408
204 note, it is not necessary to recompile them again.
207 The new trunk(4) driver has been renamed to lagg(4) as it better
208 reflects its purpose. ifconfig will need to be recompiled.
211 sendmail(8) has been updated to version 8.14.1. Mail filters
212 (aka, milters) compiled against the libmilter included in the
213 base operating system should be recompiled.
216 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
217 In order to use them one must agree to the respective LICENSE in
218 share/doc/legal and define legal.intel_<name>.license_ack=1 via
219 loader.conf(5) or kenv(1). Make sure to deinstall the now
220 deprecated modules from the respective firmware ports.
223 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
224 were removed from FreeBSD's libc. These originally came from INRIA
225 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
226 deprecated in previous releases.
227 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
228 replace it as a more portable (and re-entrant) API.
231 To support interrupt filtering a modification to the newbus API
232 has occurred, ABI was broken and __FreeBSD_version was bumped
233 to 700031. Please make sure that your kernel and modules are in
235 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
238 The IPv6 multicast forwarding code may now be loaded into GENERIC
239 kernels by loading the ip_mroute.ko module. This is built into the
240 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
241 set; see src.conf(5) for more information.
244 The output of netstat -r has changed. Without -n, we now only
245 print a "network name" without the prefix length if the network
246 address and mask exactly match a Class A/B/C network, and an entry
247 exists in the nsswitch "networks" map.
248 With -n, we print the full unabbreviated CIDR network prefix in
249 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
250 This change is in preparation for changes such as equal-cost
251 multipath, and to more generally assist operational deployment
252 of FreeBSD as a modern IPv4 router.
255 PIM has been turned on by default in the IPv4 multicast
256 routing code. The kernel option 'PIM' has now been removed.
257 PIM is now built by default if option 'MROUTING' is specified.
258 It may now be loaded into GENERIC kernels by loading the
262 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
263 has been removed. Its functionality may be achieved by explicitly
264 configuring gif(4) interfaces and using the 'phyint' keyword in
266 XORP does not support source-routed IPv4 multicast tunnels nor the
267 integrated IPIP tunneling, therefore it is not affected by this
268 change. The __FreeBSD_version macro has been bumped to 700030.
271 Support for PCI Message Signalled Interrupts has been
272 re-enabled in the bge driver, only for those chips which are
273 believed to support it properly. If there are any problems,
274 MSI can be disabled completely by setting the
275 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
279 Support for PCI Message Signalled Interrupts has been
280 disabled again in the bge driver. Many revisions of the
281 hardware fail to support it properly. Support can be
282 re-enabled by removing the #define of BGE_DISABLE_MSI in
283 "src/sys/dev/bge/if_bge.c".
286 Support for PCI Message Signalled Interrupts has been added
287 to the bge driver. If there are any problems, MSI can be
288 disabled completely by setting the 'hw.pci.enable_msi' and
289 'hw.pci.enable_msix' tunables to 0 in the loader.
292 The removal of several facets of the experimental Threading
293 system from the kernel means that the proc and thread structures
294 have changed quite a bit. I suggest all kernel modules that might
295 reference these structures be recompiled.. Especially the
299 Sound infrastructure has been updated with various fixes and
300 improvements. Most of the changes are pretty much transparent,
301 with exceptions of followings:
302 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
303 moved to their own dev sysctl nodes, for example:
304 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
305 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
306 own chardev in the form of "dsp%d.<function>%d", where <function>
307 is p = playback, r = record and v = virtual, respectively. Users
308 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
309 This does not affect those who are using "/dev/dsp".
312 The following binaries have been disconnected from the build:
313 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
314 and mount_std. The functionality of these programs has been
315 moved into the mount program. For example, to mount a devfs
316 filesystem, instead of using mount_devfs, use: "mount -t devfs".
317 This does not affect entries in /etc/fstab, since entries in
318 /etc/fstab are always processed with "mount -t fstype".
321 Support for PCI Message Signalled Interrupts on i386 and amd64
322 has been added to the kernel and various drivers will soon be
323 updated to use MSI when it is available. If there are any problems,
324 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
325 and 'hw.pci.enable_msix' tunables to 0 in the loader.
328 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
329 The lockmgr object layout has been changed as a result of having
330 a lock_object embedded in it. As a consequence all file system
331 kernel modules must be re-compiled. The mutex profiling man page
332 has not yet been updated to reflect this change.
335 KSE in the kernel has now been made optional and turned on by
336 default. Use 'nooption KSE' in your kernel config to turn it
337 off. All kernel modules *must* be recompiled after this change.
338 There-after, modules from a KSE kernel should be compatible with
339 modules from a NOKSE kernel due to the temporary padding fields
340 added to 'struct proc'.
343 mrouted and its utilities have been removed from the base system.
346 Some ioctl(2) command codes have changed. Full backward ABI
347 compatibility is provided if the "options COMPAT_FREEBSD6" is
348 present in the kernel configuration file. Make sure to add
349 this option to your kernel config file, or recompile X.Org
350 and the rest of ports; otherwise they may refuse to work.
353 tcpslice has been removed from the base system.
356 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
357 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
358 systat needs to be rebuilt.
361 libpcap updated to v0.9.4 and tcpdump to v3.9.4
364 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
365 for IPFIREWALL_FORWARD is now as it was before when it was first
366 committed and for years after. The behaviour is now ON.
369 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
370 Now it can decrypt files created from different architectures.
371 Unfortunately, it is no longer able to decrypt a cipher text
372 generated with an older version on 64 bit architectures.
373 If you have such a file, you need old utility to decrypt it.
376 The interface version of the i4b kernel part has changed. So
377 after updating the kernel sources and compiling a new kernel,
378 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
379 be rebuilt, and vice versa.
382 The XBOX kernel now defaults to the nfe(4) driver instead of
383 the nve(4) driver. Please update your configuration
387 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
388 PCnet family of NICs has been removed. The new le(4) driver serves
389 as an equivalent but cross-platform replacement with the pcn(4)
390 driver still providing performance-optimized support for the subset
391 of AMD Am79C971 PCnet-FAST and greater chips as before.
394 The machdep.* sysctls and the adjkerntz utility have been
395 modified a bit. The new adjkerntz utility uses the new
396 sysctl names and sysctlbyname() calls, so it may be impossible
397 to run an old /sbin/adjkerntz utility in single-user mode
398 with a new kernel. Replace the `adjkerntz -i' step before
399 `make installworld' with:
401 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
403 and proceed as usual with the rest of the installworld-stage
404 steps. Otherwise, you risk installing binaries with their
405 timestamp set several hours in the future, especially if
406 you are running with local time set to GMT+X hours.
409 The ip6fw utility has been removed. The behavior provided by
410 ip6fw has been in ipfw2 for a good while and the rc.d scripts
411 have been updated to deal with it. There are some rules that
412 might not migrate cleanly. Use rc.firewall6 as a template to
416 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
417 attachments have been removed. Make sure to configure scc(4)
418 on sparc64. Note also that by default puc(4) will use uart(4)
419 and not sio(4) for serial ports because interrupt handling has
420 been optimized for multi-port serial cards and only uart(4)
421 implements the interface to support it.
424 The scc(4) driver replaces puc(4) for Serial Communications
425 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
426 Z8530. On sparc64, it is advised to add scc(4) to the kernel
427 configuration to make sure that the serial ports remain
431 Most world/kernel related NO_* build options changed names.
432 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
433 after FreeBSD ports) and should be set in /etc/src.conf
434 (the src.conf(5) manpage is provided). Full backwards
435 compatibility is maintained for the time being though it's
436 highly recommended to start moving old options out of the
437 system-wide /etc/make.conf file into the new /etc/src.conf
438 while also properly renaming them. More conversions will
439 likely follow. Posting to current@:
441 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
444 The NETSMBCRYPTO kernel option has been retired because its
445 functionality is always included in NETSMB and smbfs.ko now.
448 The TDFX_LINUX kernel option was retired and replaced by the
449 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
450 kernel module. Loading it alone should suffice to get 3dfx support
451 for Linux apps because it will pull in 3dfx.ko and linux.ko through
455 The 'audit' group was added to support the new auditing functionality
456 in the base system. Be sure to follow the directions for updating,
457 including the requirement to run mergemaster -p.
460 The kernel ABI to file system modules was changed on i386.
461 Please make sure that your kernel and modules are in sync.
464 This actually occured some time ago, but installing the kernel
465 now also installs a bunch of symbol files for the kernel modules.
466 This increases the size of /boot/kernel to about 67Mbytes. You
467 will need twice this if you will eventually back this up to kernel.old
468 on your next install.
469 If you have a shortage of room in your root partition, you should add
470 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
471 to your /etc/make.conf.
474 libc's malloc implementation has been replaced. This change has the
475 potential to uncover application bugs that previously went unnoticed.
476 See the malloc(3) manual page for more details.
479 The generic netgraph(4) cookie has been changed. If you upgrade
480 kernel passing this point, you also need to upgrade userland
481 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
484 si(4)'s device files now contain the unit number.
485 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
488 The kernel ABI was mostly destroyed due to a change in the size
489 of struct lock_object which is nested in other structures such
490 as mutexes which are nested in all sorts of other structures.
491 Make sure your kernel and modules are in sync.
494 The page coloring algorithm in the VM subsystem was converted
495 from tuning with kernel options to autotuning. Please remove
496 any PQ_* option except PQ_NOOPT from your kernel config.
499 The net80211-related tools in the tools/tools/ath directory
500 have been moved to tools/tools/net80211 and renamed with a
501 "wlan" prefix. Scripts that use them should be adjusted
505 Scripts in the local_startup directories (as defined in
506 /etc/defaults/rc.conf) that have the new rc.d semantics will
507 now be run as part of the base system rcorder. If there are
508 errors or problems with one of these local scripts, it could
509 cause boot problems. If you encounter such problems, boot in
510 single user mode, remove that script from the */rc.d directory.
511 Please report the problem to the port's maintainer, and the
512 freebsd-ports@freebsd.org mailing list.
515 The nodev mount option was deprecated in RELENG_6 (where it
516 was a no-op), and is now unsupported. If you have nodev or dev listed
517 in /etc/fstab, remove it, otherwise it will result in a mount error.
520 ABI between ipfw(4) and ipfw(8) has been changed. You need
521 to rebuild ipfw(8) when rebuilding kernel.
524 rp(4)'s device files now contain the unit number.
525 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
528 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
529 Its /etc/rc.conf.d configuration file has been `ppp' from
530 the beginning, and hence there is no need to touch it.
533 Now most modules get their build-time options from the kernel
534 configuration file. A few modules still have fixed options
535 due to their non-conformant implementation, but they will be
536 corrected eventually. You may need to review the options of
537 the modules in use, explicitly specify the non-default options
538 in the kernel configuration file, and rebuild the kernel and
542 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
543 to turn polling(4) on your interfaces.
546 The old bridge(4) implementation was retired. The new
547 if_bridge(4) serves as a full functional replacement.
550 The ai_addrlen of a struct addrinfo was changed to a socklen_t
551 to conform to POSIX-2001. This change broke an ABI
552 compatibility on 64 bit architecture. You have to recompile
553 userland programs that use getaddrinfo(3) on 64 bit
557 RELENG_6 branched here.
560 The pccard_ifconfig rc.conf variable has been removed and a new
561 variable, ifconfig_DEFAULT has been introduced. Unlike
562 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
563 do not have ifconfig_ifn entries rather than just those in
564 removable_interfaces.
567 Some previous versions of PAM have permitted the use of
568 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
569 to third party PAM modules in /usr/local/lib. A change has been
570 made to require the use of absolute paths in order to avoid
571 ambiguity and dependence on library path configuration, which may
572 affect existing configurations.
575 Major changes to network interface API. All drivers must be
576 recompiled. Drivers not in the base system will need to be
577 updated to the new APIs.
580 Changes were made to kinfo_proc in sys/user.h. Please recompile
581 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
582 will not behave correctly.
584 The API and ABI for hwpmc(4) have changed with the addition
585 of sampling support. Please recompile lib/libpmc(3) and
586 usr.sbin/{pmcstat,pmccontrol}.
589 The OpenBSD dhclient was imported in place of the ISC dhclient
590 and the network interface configuration scripts were updated
591 accordingly. If you use DHCP to configure your interfaces, you
592 must now run devd. Also, DNS updating was lost so you will need
593 to find a workaround if you use this feature.
595 The '_dhcp' user was added to support the OpenBSD dhclient. Be
596 sure to run mergemaster -p (like you are supposed to do every time
600 if_bridge was added to the tree. This has changed struct ifnet.
601 Please recompile userland and all network related modules.
604 The n_net of a struct netent was changed to an uint32_t, and
605 1st argument of getnetbyaddr() was changed to an uint32_t, to
606 conform to POSIX-2001. These changes broke an ABI
607 compatibility on 64 bit architecture. With these changes,
608 shlib major of libpcap was bumped. You have to recompile
609 userland programs that use getnetbyaddr(3), getnetbyname(3),
610 getnetent(3) and/or libpcap on 64 bit architecture.
613 Kernel parsing of extra options on '#!' first lines of shell
614 scripts has changed. Lines with multiple options likely will
615 fail after this date. For full details, please see
616 http://people.freebsd.org/~gad/Updating-20050528.txt
619 The packet filter (pf) code has been updated to OpenBSD 3.7
620 Please note the changed anchor syntax and the fact that
621 authpf(8) now needs a mounted fdescfs(5) to function.
624 The NO_MIXED_MODE kernel option has been removed from the i386
625 amd64 platforms as its use has been superceded by the new local
626 APIC timer code. Any kernel config files containing this option
630 The on-disk format of LC_CTYPE files was changed to be machine
631 independent. Please make sure NOT to use NO_CLEAN buildworld
632 when crossing this point. Crossing this point also requires
633 recompile or reinstall of all locale depended packages.
636 The ifi_epoch member of struct if_data has been changed to
637 contain the uptime at which the interface was created or the
638 statistics zeroed rather then the wall clock time because
639 wallclock time may go backwards. This should have no impact
640 unless an snmp implementation is using this value (I know of
644 The acpi_perf and acpi_throttle drivers are now part of the
645 acpi(4) main module. They are no longer built separately.
648 The layout of struct image_params has changed. You have to
649 recompile all compatibility modules (linux, svr4, etc) for use
653 The p4tcc driver has been merged into cpufreq(4). This makes
654 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
655 compile in "device cpufreq" to restore this functionality.
658 The responsibility of recomputing the file system summary of
659 a SoftUpdates-enabled dirty volume has been transferred to the
660 background fsck. A rebuild of fsck(8) utility is recommended
661 if you have updated the kernel.
663 To get the old behavior (recompute file system summary at mount
664 time), you can set vfs.ffs.compute_summary_at_mount=1 before
665 mounting the new volume.
668 The cpufreq import is complete. As part of this, the sysctls for
669 acpi(4) throttling have been removed. The power_profile script
670 has been updated, so you can use performance/economy_cpu_freq in
671 rc.conf(5) to set AC on/offline cpu frequencies.
674 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
675 requires recompiling libnetgraph and userland netgraph utilities.
678 Support for abbreviated forms of a number of ipfw options is
679 now deprecated. Warnings are printed to stderr indicating the
680 correct full form when a match occurs. Some abbreviations may
681 be supported at a later date based on user feedback. To be
682 considered for support, abbreviations must be in use prior to
683 this commit and unlikely to be confused with current key words.
686 By a popular demand, a lot of NOFOO options were renamed
687 to NO_FOO (see bsd.compat.mk for a full list). The old
688 spellings are still supported, but will cause annoying
689 warnings on stderr. Make sure you upgrade properly (see
690 the COMMON ITEMS: section later in this file).
693 Auto-loading of ancillary wlan modules such as wlan_wep has
694 been temporarily disabled; you need to statically configure
695 the modules you need into your kernel or explicitly load them
696 prior to use. Specifically, if you intend to use WEP encryption
697 with an 802.11 device load/configure wlan_wep; if you want to
698 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
699 and wlan_xauth as required.
702 The behaviour of ppp(8) has changed slightly. If lqr is enabled
703 (``enable lqr''), older versions would revert to LCP ECHO mode on
704 negotiation failure. Now, ``enable echo'' is required for this
705 behaviour. The ppp version number has been bumped to 3.4.2 to
709 The wlan support has been updated to split the crypto support
710 into separate modules. For static WEP you must configure the
711 wlan_wep module in your system or build and install the module
712 in place where it can be loaded (the kernel will auto-load
713 the module when a wep key is configured).
716 The ath driver has been updated to split the tx rate control
717 algorithm into a separate module. You need to include either
718 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
721 Support for systems with an 80386 CPU has been removed. Please
722 use FreeBSD 5.x or earlier on systems with an 80386.
725 We have had a hack which would mount the root filesystem
726 R/W if the device were named 'md*'. As part of the vnode
727 work I'm doing I have had to remove this hack. People
728 building systems which use preloaded MD root filesystems
729 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
730 their /etc/rc scripts.
733 FreeBSD 5.3 shipped here.
736 The size of struct tcpcb has changed again due to the removal
737 of RFC1644 T/TCP. You have to recompile userland programs that
738 read kmem for tcp sockets directly (netstat, sockstat, etc.)
741 The size of struct tcpcb has changed. You have to recompile
742 userland programs that read kmem for tcp sockets directly
743 (netstat, sockstat, etc.)
746 RELENG_5 branched here. For older entries, please see updating
747 in the RELENG_5 branch.
753 Avoid using make -j when upgrading. From time to time in the
754 past there have been problems using -j with buildworld and/or
755 installworld. This is especially true when upgrading between
756 "distant" versions (eg one that cross a major release boundary
757 or several minor releases, or when several months have passed
758 on the -current branch).
760 Sometimes, obscure build problems are the result of environment
761 poisoning. This can happen because the make utility reads its
762 environment when searching for values for global variables.
763 To run your build attempts in an "environmental clean room",
764 prefix all make commands with 'env -i '. See the env(1) manual
765 page for more details.
767 When upgrading from one major version to another it is generally
768 best to upgrade to the latest code in the currently installed branch
769 first, then do an upgrade to the new branch. This is the best-tested
770 upgrade path, and has the highest probability of being successful.
771 Please try this approach before reporting problems with a major
776 If you are updating from a prior version of FreeBSD (even one just
777 a few days old), you should follow this procedure. It is the most
778 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
780 make kernel-toolchain
781 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
782 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
784 To test a kernel once
785 ---------------------
786 If you just want to boot a kernel once (because you are not sure
787 if it works, or if you want to boot a known bad kernel to provide
788 debugging information) run
789 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
790 nextboot -k testkernel
792 To just build a kernel when you know that it won't mess you up
793 --------------------------------------------------------------
794 This assumes you are already running a 5.X system. Replace
795 ${arch} with the architecture of your machine (e.g. "i386",
796 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
798 cd src/sys/${arch}/conf
799 config KERNEL_NAME_HERE
800 cd ../compile/KERNEL_NAME_HERE
805 If this fails, go to the "To build a kernel" section.
807 To rebuild everything and install it on the current system.
808 -----------------------------------------------------------
809 # Note: sometimes if you are running current you gotta do more than
810 # is listed here if you are upgrading from a really old current.
812 <make sure you have good level 0 dumps>
814 make kernel KERNCONF=YOUR_KERNEL_HERE
816 <reboot in single user> [3]
824 To cross-install current onto a separate partition
825 --------------------------------------------------
826 # In this approach we use a separate partition to hold
827 # current's root, 'usr', and 'var' directories. A partition
828 # holding "/", "/usr" and "/var" should be about 2GB in
831 <make sure you have good level 0 dumps>
834 make buildkernel KERNCONF=YOUR_KERNEL_HERE
835 <maybe newfs current's root partition>
836 <mount current's root partition on directory ${CURRENT_ROOT}>
837 make installworld DESTDIR=${CURRENT_ROOT}
838 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
839 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
840 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
841 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
842 <reboot into current>
843 <do a "native" rebuild/install as described in the previous section>
844 <maybe install compatibility libraries from src/lib/compat>
848 To upgrade in-place from 5.x-stable to current
849 ----------------------------------------------
850 <make sure you have good level 0 dumps>
852 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
854 <reboot in single user> [3]
861 Make sure that you've read the UPDATING file to understand the
862 tweaks to various things you need. At this point in the life
863 cycle of current, things change often and you are on your own
864 to cope. The defaults can also change, so please read ALL of
865 the UPDATING entries.
867 Also, if you are tracking -current, you must be subscribed to
868 freebsd-current@freebsd.org. Make sure that before you update
869 your sources that you have read and understood all the recent
870 messages there. If in doubt, please track -stable which has
873 [1] If you have third party modules, such as vmware, you
874 should disable them at this point so they don't crash your
877 [3] From the bootblocks, boot -s, and then do
882 adjkerntz -i # if CMOS is wall time
883 Also, when doing a major release upgrade, it is required that
884 you boot into single user mode to do the installworld.
886 [4] Note: This step is non-optional. Failure to do this step
887 can result in a significant reduction in the functionality of the
888 system. Attempting to do it by hand is not recommended and those
889 that pursue this avenue should read this file carefully, as well
890 as the archives of freebsd-current and freebsd-hackers mailing lists
891 for potential gotchas.
893 [5] Usually this step is a noop. However, from time to time
894 you may need to do this if you get unknown user in the following
895 step. It never hurts to do it all the time. You may need to
896 install a new mergemaster (cd src/usr.sbin/mergemaster && make
897 install) after the buildworld before this step if you last updated
898 from current before 20020224 or from -stable before 20020408.
900 [8] In order to have a kernel that can run the 4.x binaries
901 needed to do an installworld, you must include the COMPAT_FREEBSD4
902 option in your kernel. Failure to do so may leave you with a system
903 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
904 is required to run the 5.x binaries on more recent kernels.
906 Make sure that you merge any new devices from GENERIC since the
907 last time you updated your kernel config file.
909 [9] When checking out sources, you must include the -P flag to have
910 cvs prune empty directories.
912 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
913 "?=" instead of the "=" assignment operator, so that buildworld can
914 override the CPUTYPE if it needs to.
916 MAKEOBJDIRPREFIX must be defined in an environment variable, and
917 not on the command line, or in /etc/make.conf. buildworld will
918 warn if it is improperly defined.
921 This file contains a list, in reverse chronological order, of major
922 breakages in tracking -current. Not all things will be listed here,
923 and it only starts on October 16, 2004. Updating files can found in
924 previous releases if your system is older than this.
926 Copyright information:
928 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
930 Redistribution, publication, translation and use, with or without
931 modification, in full or in part, in any form or format of this
932 document are permitted without further permission from the author.
934 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
935 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
936 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
937 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
938 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
939 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
940 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
941 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
942 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
943 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
944 POSSIBILITY OF SUCH DAMAGE.
946 If you find this document useful, and you want to, you may buy the
949 Contact Warner Losh if you have any questions about your use of