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 It has been decided that it is desirable to provide ABI
26 backwards compatibility to the FreeBSD 4/5/6 versions of the
27 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
28 broken with the introduction of PCI domain support (see the
29 20070930 entry). Unfortunately, this required the ABI of
30 PCIOCGETCONF to be broken again in order to be able to
31 provide backwards compatibility to the old version of that
32 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
33 again. As for prominent ports this affects neither pciutils
34 nor xorg-server this time, the hal port needs to be rebuilt
38 The misnamed kthread_create() and friends have been renamed
39 to kproc_create() etc. Many of the callers already
41 I will return kthread_create() and friends in a while
42 with implementations that actually create threads, not procs.
43 Renaming corresponds with version 800002.
49 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
50 WITHOUT_LIBTHR are set.
53 The PCI code has been made aware of PCI domains. This means that
54 the location strings as used by pciconf(8) etc are now in the
55 following format: pci<domain>:<bus>:<device>[:<function>]. It
56 also means that consumers of <sys/pciio.h> potentially need to
57 be recompiled; this includes the hal and xorg-server ports.
60 The caching daemon (cached) was renamed to nscd. nscd.conf
61 configuration file should be used instead of cached.conf and
62 nscd_enable, nscd_pidfile and nscd_flags options should be used
63 instead of cached_enable, cached_pidfile and cached_flags in
67 The getfacl(1) utility now prints owning user and group name
68 instead of owning uid and gid in the three line comment header.
69 This is the same behavior as getfacl(1) on Solaris and Linux.
72 The new IPsec code is now compiled in using the IPSEC option. The
73 IPSEC option now requires "device crypto" be defined in your kernel
74 configuration. The FAST_IPSEC kernel option is now deprecated.
77 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
78 note the changed syntax - keep state is now on by default. Also
79 note the fact that ftp-proxy(8) has been changed from bottom up and
80 has been moved from libexec to usr/sbin. Changes in the ALTQ
81 handling also affect users of IPFW's ALTQ capabilities.
84 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
85 only IPsec supported by FreeBSD. The new IPsec stack
86 supports both IPv4 and IPv6. The kernel option will change
87 after the code changes have settled in. For now the kernel
88 option IPSEC is deprecated and FAST_IPSEC is the only option, that
89 will change after some settling time.
92 The wicontrol(8) utility has been removed from the base system. wi(4)
93 cards should be configured using ifconfig(8), see the man page for more
97 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
98 instead of the nve(4) driver. Please update your configuration
102 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
103 database if it is missing or older than the aliases file. If
104 desired, set the new rc.conf option sendmail_rebuild_aliases
105 to "YES" to restore that functionality.
108 The IPv4 multicast socket code has been considerably modified, and
109 moved to the file sys/netinet/in_mcast.c. Initial support for the
110 RFC 3678 Source-Specific Multicast Socket API has been added to
111 the IPv4 network stack.
113 Strict multicast and broadcast reception is now the default for
114 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
115 has now been removed.
117 The RFC 1724 hack for interface selection has been removed; the use
118 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
119 been added to replace it. Consumers such as routed will soon be
120 updated to reflect this.
122 These changes affect users who are running routed(8) or rdisc(8)
123 from the FreeBSD base system on point-to-point or unnumbered
127 The net80211 layer has changed significantly and all wireless
128 drivers that depend on it need to be recompiled. Further these
129 changes require that any program that interacts with the wireless
130 support in the kernel be recompiled; this includes: ifconfig,
131 wpa_supplicant, hostapd, and wlanstats. Users must also, for
132 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
133 if they use modules for wireless support. These modules implement
134 scanning support for station and ap modes, respectively. Failure
135 to load the appropriate module before marking a wireless interface
136 up will result in a message to the console and the device not
140 The pam_nologin(8) module ceases to provide an authentication
141 function and starts providing an account management function.
142 Consequent changes to /etc/pam.d should be brought in using
143 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
144 need manual editing as follows. Locate this line (or similar):
146 auth required pam_nologin.so no_warn
148 and change it according to this example:
150 account required pam_nologin.so no_warn
152 That is, the first word needs to be changed from "auth" to
153 "account". The new line can be moved to the account section
154 within the file for clarity. Not updating pam.conf(5) files
155 will result in nologin(5) ignored by the respective services.
158 The ether_ioctl() function has been synchronized with ioctl(2)
159 and ifnet.if_ioctl. Due to that, the size of one of its arguments
160 has changed on 64-bit architectures. All kernel modules using
161 ether_ioctl() need to be rebuilt on such architectures.
164 Improved INCLUDE_CONFIG_FILE support has been introduced to the
165 config(8) utility. In order to take advantage of this new
166 functionality, you are expected to recompile and install
167 src/usr.sbin/config. If you don't rebuild config(8), and your
168 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
169 build will be broken because of a missing "kernconfstring"
173 Symbol versioning is enabled by default. To disable it, use
174 option WITHOUT_SYMVER. It is not advisable to attempt to
175 disable symbol versioning once it is enabled; your installworld
176 will break because a symbol version-less libc will get installed
177 before the install tools. As a result, the old install tools,
178 which previously had symbol dependencies to FBSD_1.0, will fail
179 because the freshly installed libc will not have them.
181 The default threading library (providing "libpthread") has been
182 changed to libthr. If you wish to have libkse as your default,
183 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
186 The ABI breakage in sendmail(8)'s libmilter has been repaired
187 so it is no longer necessary to recompile mail filters (aka,
188 milters). If you recompiled mail filters after the 20070408
189 note, it is not necessary to recompile them again.
192 The new trunk(4) driver has been renamed to lagg(4) as it better
193 reflects its purpose. ifconfig will need to be recompiled.
196 sendmail(8) has been updated to version 8.14.1. Mail filters
197 (aka, milters) compiled against the libmilter included in the
198 base operating system should be recompiled.
201 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
202 In order to use them one must agree to the respective LICENSE in
203 share/doc/legal and define legal.intel_<name>.license_ack=1 via
204 loader.conf(5) or kenv(1). Make sure to deinstall the now
205 deprecated modules from the respective firmware ports.
208 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
209 were removed from FreeBSD's libc. These originally came from INRIA
210 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
211 deprecated in previous releases.
212 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
213 replace it as a more portable (and re-entrant) API.
216 To support interrupt filtering a modification to the newbus API
217 has occurred, ABI was broken and __FreeBSD_version was bumped
218 to 700031. Please make sure that your kernel and modules are in
220 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
223 The IPv6 multicast forwarding code may now be loaded into GENERIC
224 kernels by loading the ip_mroute.ko module. This is built into the
225 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
226 set; see src.conf(5) for more information.
229 The output of netstat -r has changed. Without -n, we now only
230 print a "network name" without the prefix length if the network
231 address and mask exactly match a Class A/B/C network, and an entry
232 exists in the nsswitch "networks" map.
233 With -n, we print the full unabbreviated CIDR network prefix in
234 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
235 This change is in preparation for changes such as equal-cost
236 multipath, and to more generally assist operational deployment
237 of FreeBSD as a modern IPv4 router.
240 PIM has been turned on by default in the IPv4 multicast
241 routing code. The kernel option 'PIM' has now been removed.
242 PIM is now built by default if option 'MROUTING' is specified.
243 It may now be loaded into GENERIC kernels by loading the
247 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
248 has been removed. Its functionality may be achieved by explicitly
249 configuring gif(4) interfaces and using the 'phyint' keyword in
251 XORP does not support source-routed IPv4 multicast tunnels nor the
252 integrated IPIP tunneling, therefore it is not affected by this
253 change. The __FreeBSD_version macro has been bumped to 700030.
256 Support for PCI Message Signalled Interrupts has been
257 re-enabled in the bge driver, only for those chips which are
258 believed to support it properly. If there are any problems,
259 MSI can be disabled completely by setting the
260 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
264 Support for PCI Message Signalled Interrupts has been
265 disabled again in the bge driver. Many revisions of the
266 hardware fail to support it properly. Support can be
267 re-enabled by removing the #define of BGE_DISABLE_MSI in
268 "src/sys/dev/bge/if_bge.c".
271 Support for PCI Message Signalled Interrupts has been added
272 to the bge driver. If there are any problems, MSI can be
273 disabled completely by setting the 'hw.pci.enable_msi' and
274 'hw.pci.enable_msix' tunables to 0 in the loader.
277 The removal of several facets of the experimental Threading
278 system from the kernel means that the proc and thread structures
279 have changed quite a bit. I suggest all kernel modules that might
280 reference these structures be recompiled.. Especially the
284 Sound infrastructure has been updated with various fixes and
285 improvements. Most of the changes are pretty much transparent,
286 with exceptions of followings:
287 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
288 moved to their own dev sysctl nodes, for example:
289 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
290 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
291 own chardev in the form of "dsp%d.<function>%d", where <function>
292 is p = playback, r = record and v = virtual, respectively. Users
293 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
294 This does not affect those who are using "/dev/dsp".
297 The following binaries have been disconnected from the build:
298 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
299 and mount_std. The functionality of these programs has been
300 moved into the mount program. For example, to mount a devfs
301 filesystem, instead of using mount_devfs, use: "mount -t devfs".
302 This does not affect entries in /etc/fstab, since entries in
303 /etc/fstab are always processed with "mount -t fstype".
306 Support for PCI Message Signalled Interrupts on i386 and amd64
307 has been added to the kernel and various drivers will soon be
308 updated to use MSI when it is available. If there are any problems,
309 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
310 and 'hw.pci.enable_msix' tunables to 0 in the loader.
313 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
314 The lockmgr object layout has been changed as a result of having
315 a lock_object embedded in it. As a consequence all file system
316 kernel modules must be re-compiled. The mutex profiling man page
317 has not yet been updated to reflect this change.
320 KSE in the kernel has now been made optional and turned on by
321 default. Use 'nooption KSE' in your kernel config to turn it
322 off. All kernel modules *must* be recompiled after this change.
323 There-after, modules from a KSE kernel should be compatible with
324 modules from a NOKSE kernel due to the temporary padding fields
325 added to 'struct proc'.
328 mrouted and its utilities have been removed from the base system.
331 Some ioctl(2) command codes have changed. Full backward ABI
332 compatibility is provided if the "options COMPAT_FREEBSD6" is
333 present in the kernel configuration file. Make sure to add
334 this option to your kernel config file, or recompile X.Org
335 and the rest of ports; otherwise they may refuse to work.
338 tcpslice has been removed from the base system.
341 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
342 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
343 systat needs to be rebuilt.
346 libpcap updated to v0.9.4 and tcpdump to v3.9.4
349 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
350 for IPFIREWALL_FORWARD is now as it was before when it was first
351 committed and for years after. The behaviour is now ON.
354 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
355 Now it can decrypt files created from different architectures.
356 Unfortunately, it is no longer able to decrypt a cipher text
357 generated with an older version on 64 bit architectures.
358 If you have such a file, you need old utility to decrypt it.
361 The interface version of the i4b kernel part has changed. So
362 after updating the kernel sources and compiling a new kernel,
363 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
364 be rebuilt, and vice versa.
367 The XBOX kernel now defaults to the nfe(4) driver instead of
368 the nve(4) driver. Please update your configuration
372 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
373 PCnet family of NICs has been removed. The new le(4) driver serves
374 as an equivalent but cross-platform replacement with the pcn(4)
375 driver still providing performance-optimized support for the subset
376 of AMD Am79C971 PCnet-FAST and greater chips as before.
379 The machdep.* sysctls and the adjkerntz utility have been
380 modified a bit. The new adjkerntz utility uses the new
381 sysctl names and sysctlbyname() calls, so it may be impossible
382 to run an old /sbin/adjkerntz utility in single-user mode
383 with a new kernel. Replace the `adjkerntz -i' step before
384 `make installworld' with:
386 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
388 and proceed as usual with the rest of the installworld-stage
389 steps. Otherwise, you risk installing binaries with their
390 timestamp set several hours in the future, especially if
391 you are running with local time set to GMT+X hours.
394 The ip6fw utility has been removed. The behavior provided by
395 ip6fw has been in ipfw2 for a good while and the rc.d scripts
396 have been updated to deal with it. There are some rules that
397 might not migrate cleanly. Use rc.firewall6 as a template to
401 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
402 attachments have been removed. Make sure to configure scc(4)
403 on sparc64. Note also that by default puc(4) will use uart(4)
404 and not sio(4) for serial ports because interrupt handling has
405 been optimized for multi-port serial cards and only uart(4)
406 implements the interface to support it.
409 The scc(4) driver replaces puc(4) for Serial Communications
410 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
411 Z8530. On sparc64, it is advised to add scc(4) to the kernel
412 configuration to make sure that the serial ports remain
416 Most world/kernel related NO_* build options changed names.
417 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
418 after FreeBSD ports) and should be set in /etc/src.conf
419 (the src.conf(5) manpage is provided). Full backwards
420 compatibility is maintained for the time being though it's
421 highly recommended to start moving old options out of the
422 system-wide /etc/make.conf file into the new /etc/src.conf
423 while also properly renaming them. More conversions will
424 likely follow. Posting to current@:
426 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
429 The NETSMBCRYPTO kernel option has been retired because its
430 functionality is always included in NETSMB and smbfs.ko now.
433 The TDFX_LINUX kernel option was retired and replaced by the
434 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
435 kernel module. Loading it alone should suffice to get 3dfx support
436 for Linux apps because it will pull in 3dfx.ko and linux.ko through
440 The 'audit' group was added to support the new auditing functionality
441 in the base system. Be sure to follow the directions for updating,
442 including the requirement to run mergemaster -p.
445 The kernel ABI to file system modules was changed on i386.
446 Please make sure that your kernel and modules are in sync.
449 This actually occured some time ago, but installing the kernel
450 now also installs a bunch of symbol files for the kernel modules.
451 This increases the size of /boot/kernel to about 67Mbytes. You
452 will need twice this if you will eventually back this up to kernel.old
453 on your next install.
454 If you have a shortage of room in your root partition, you should add
455 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
456 to your /etc/make.conf.
459 libc's malloc implementation has been replaced. This change has the
460 potential to uncover application bugs that previously went unnoticed.
461 See the malloc(3) manual page for more details.
464 The generic netgraph(4) cookie has been changed. If you upgrade
465 kernel passing this point, you also need to upgrade userland
466 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
469 si(4)'s device files now contain the unit number.
470 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
473 The kernel ABI was mostly destroyed due to a change in the size
474 of struct lock_object which is nested in other structures such
475 as mutexes which are nested in all sorts of other structures.
476 Make sure your kernel and modules are in sync.
479 The page coloring algorithm in the VM subsystem was converted
480 from tuning with kernel options to autotuning. Please remove
481 any PQ_* option except PQ_NOOPT from your kernel config.
484 The net80211-related tools in the tools/tools/ath directory
485 have been moved to tools/tools/net80211 and renamed with a
486 "wlan" prefix. Scripts that use them should be adjusted
490 Scripts in the local_startup directories (as defined in
491 /etc/defaults/rc.conf) that have the new rc.d semantics will
492 now be run as part of the base system rcorder. If there are
493 errors or problems with one of these local scripts, it could
494 cause boot problems. If you encounter such problems, boot in
495 single user mode, remove that script from the */rc.d directory.
496 Please report the problem to the port's maintainer, and the
497 freebsd-ports@freebsd.org mailing list.
500 The nodev mount option was deprecated in RELENG_6 (where it
501 was a no-op), and is now unsupported. If you have nodev or dev listed
502 in /etc/fstab, remove it, otherwise it will result in a mount error.
505 ABI between ipfw(4) and ipfw(8) has been changed. You need
506 to rebuild ipfw(8) when rebuilding kernel.
509 rp(4)'s device files now contain the unit number.
510 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
513 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
514 Its /etc/rc.conf.d configuration file has been `ppp' from
515 the beginning, and hence there is no need to touch it.
518 Now most modules get their build-time options from the kernel
519 configuration file. A few modules still have fixed options
520 due to their non-conformant implementation, but they will be
521 corrected eventually. You may need to review the options of
522 the modules in use, explicitly specify the non-default options
523 in the kernel configuration file, and rebuild the kernel and
527 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
528 to turn polling(4) on your interfaces.
531 The old bridge(4) implementation was retired. The new
532 if_bridge(4) serves as a full functional replacement.
535 The ai_addrlen of a struct addrinfo was changed to a socklen_t
536 to conform to POSIX-2001. This change broke an ABI
537 compatibility on 64 bit architecture. You have to recompile
538 userland programs that use getaddrinfo(3) on 64 bit
542 RELENG_6 branched here.
545 The pccard_ifconfig rc.conf variable has been removed and a new
546 variable, ifconfig_DEFAULT has been introduced. Unlike
547 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
548 do not have ifconfig_ifn entries rather than just those in
549 removable_interfaces.
552 Some previous versions of PAM have permitted the use of
553 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
554 to third party PAM modules in /usr/local/lib. A change has been
555 made to require the use of absolute paths in order to avoid
556 ambiguity and dependence on library path configuration, which may
557 affect existing configurations.
560 Major changes to network interface API. All drivers must be
561 recompiled. Drivers not in the base system will need to be
562 updated to the new APIs.
565 Changes were made to kinfo_proc in sys/user.h. Please recompile
566 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
567 will not behave correctly.
569 The API and ABI for hwpmc(4) have changed with the addition
570 of sampling support. Please recompile lib/libpmc(3) and
571 usr.sbin/{pmcstat,pmccontrol}.
574 The OpenBSD dhclient was imported in place of the ISC dhclient
575 and the network interface configuration scripts were updated
576 accordingly. If you use DHCP to configure your interfaces, you
577 must now run devd. Also, DNS updating was lost so you will need
578 to find a workaround if you use this feature.
580 The '_dhcp' user was added to support the OpenBSD dhclient. Be
581 sure to run mergemaster -p (like you are supposed to do every time
585 if_bridge was added to the tree. This has changed struct ifnet.
586 Please recompile userland and all network related modules.
589 The n_net of a struct netent was changed to an uint32_t, and
590 1st argument of getnetbyaddr() was changed to an uint32_t, to
591 conform to POSIX-2001. These changes broke an ABI
592 compatibility on 64 bit architecture. With these changes,
593 shlib major of libpcap was bumped. You have to recompile
594 userland programs that use getnetbyaddr(3), getnetbyname(3),
595 getnetent(3) and/or libpcap on 64 bit architecture.
598 Kernel parsing of extra options on '#!' first lines of shell
599 scripts has changed. Lines with multiple options likely will
600 fail after this date. For full details, please see
601 http://people.freebsd.org/~gad/Updating-20050528.txt
604 The packet filter (pf) code has been updated to OpenBSD 3.7
605 Please note the changed anchor syntax and the fact that
606 authpf(8) now needs a mounted fdescfs(5) to function.
609 The NO_MIXED_MODE kernel option has been removed from the i386
610 amd64 platforms as its use has been superceded by the new local
611 APIC timer code. Any kernel config files containing this option
615 The on-disk format of LC_CTYPE files was changed to be machine
616 independent. Please make sure NOT to use NO_CLEAN buildworld
617 when crossing this point. Crossing this point also requires
618 recompile or reinstall of all locale depended packages.
621 The ifi_epoch member of struct if_data has been changed to
622 contain the uptime at which the interface was created or the
623 statistics zeroed rather then the wall clock time because
624 wallclock time may go backwards. This should have no impact
625 unless an snmp implementation is using this value (I know of
629 The acpi_perf and acpi_throttle drivers are now part of the
630 acpi(4) main module. They are no longer built separately.
633 The layout of struct image_params has changed. You have to
634 recompile all compatibility modules (linux, svr4, etc) for use
638 The p4tcc driver has been merged into cpufreq(4). This makes
639 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
640 compile in "device cpufreq" to restore this functionality.
643 The responsibility of recomputing the file system summary of
644 a SoftUpdates-enabled dirty volume has been transferred to the
645 background fsck. A rebuild of fsck(8) utility is recommended
646 if you have updated the kernel.
648 To get the old behavior (recompute file system summary at mount
649 time), you can set vfs.ffs.compute_summary_at_mount=1 before
650 mounting the new volume.
653 The cpufreq import is complete. As part of this, the sysctls for
654 acpi(4) throttling have been removed. The power_profile script
655 has been updated, so you can use performance/economy_cpu_freq in
656 rc.conf(5) to set AC on/offline cpu frequencies.
659 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
660 requires recompiling libnetgraph and userland netgraph utilities.
663 Support for abbreviated forms of a number of ipfw options is
664 now deprecated. Warnings are printed to stderr indicating the
665 correct full form when a match occurs. Some abbreviations may
666 be supported at a later date based on user feedback. To be
667 considered for support, abbreviations must be in use prior to
668 this commit and unlikely to be confused with current key words.
671 By a popular demand, a lot of NOFOO options were renamed
672 to NO_FOO (see bsd.compat.mk for a full list). The old
673 spellings are still supported, but will cause annoying
674 warnings on stderr. Make sure you upgrade properly (see
675 the COMMON ITEMS: section later in this file).
678 Auto-loading of ancillary wlan modules such as wlan_wep has
679 been temporarily disabled; you need to statically configure
680 the modules you need into your kernel or explicitly load them
681 prior to use. Specifically, if you intend to use WEP encryption
682 with an 802.11 device load/configure wlan_wep; if you want to
683 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
684 and wlan_xauth as required.
687 The behaviour of ppp(8) has changed slightly. If lqr is enabled
688 (``enable lqr''), older versions would revert to LCP ECHO mode on
689 negotiation failure. Now, ``enable echo'' is required for this
690 behaviour. The ppp version number has been bumped to 3.4.2 to
694 The wlan support has been updated to split the crypto support
695 into separate modules. For static WEP you must configure the
696 wlan_wep module in your system or build and install the module
697 in place where it can be loaded (the kernel will auto-load
698 the module when a wep key is configured).
701 The ath driver has been updated to split the tx rate control
702 algorithm into a separate module. You need to include either
703 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
706 Support for systems with an 80386 CPU has been removed. Please
707 use FreeBSD 5.x or earlier on systems with an 80386.
710 We have had a hack which would mount the root filesystem
711 R/W if the device were named 'md*'. As part of the vnode
712 work I'm doing I have had to remove this hack. People
713 building systems which use preloaded MD root filesystems
714 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
715 their /etc/rc scripts.
718 FreeBSD 5.3 shipped here.
721 The size of struct tcpcb has changed again due to the removal
722 of RFC1644 T/TCP. You have to recompile userland programs that
723 read kmem for tcp sockets directly (netstat, sockstat, etc.)
726 The size of struct tcpcb has changed. You have to recompile
727 userland programs that read kmem for tcp sockets directly
728 (netstat, sockstat, etc.)
731 RELENG_5 branched here. For older entries, please see updating
732 in the RELENG_5 branch.
738 Avoid using make -j when upgrading. From time to time in the
739 past there have been problems using -j with buildworld and/or
740 installworld. This is especially true when upgrading between
741 "distant" versions (eg one that cross a major release boundary
742 or several minor releases, or when several months have passed
743 on the -current branch).
745 Sometimes, obscure build problems are the result of environment
746 poisoning. This can happen because the make utility reads its
747 environment when searching for values for global variables.
748 To run your build attempts in an "environmental clean room",
749 prefix all make commands with 'env -i '. See the env(1) manual
750 page for more details.
752 When upgrading from one major version to another it is generally
753 best to upgrade to the latest code in the currently installed branch
754 first, then do an upgrade to the new branch. This is the best-tested
755 upgrade path, and has the highest probability of being successful.
756 Please try this approach before reporting problems with a major
761 If you are updating from a prior version of FreeBSD (even one just
762 a few days old), you should follow this procedure. It is the most
763 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
765 make kernel-toolchain
766 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
767 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
769 To test a kernel once
770 ---------------------
771 If you just want to boot a kernel once (because you are not sure
772 if it works, or if you want to boot a known bad kernel to provide
773 debugging information) run
774 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
775 nextboot -k testkernel
777 To just build a kernel when you know that it won't mess you up
778 --------------------------------------------------------------
779 This assumes you are already running a 5.X system. Replace
780 ${arch} with the architecture of your machine (e.g. "i386",
781 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
783 cd src/sys/${arch}/conf
784 config KERNEL_NAME_HERE
785 cd ../compile/KERNEL_NAME_HERE
790 If this fails, go to the "To build a kernel" section.
792 To rebuild everything and install it on the current system.
793 -----------------------------------------------------------
794 # Note: sometimes if you are running current you gotta do more than
795 # is listed here if you are upgrading from a really old current.
797 <make sure you have good level 0 dumps>
799 make kernel KERNCONF=YOUR_KERNEL_HERE
801 <reboot in single user> [3]
809 To cross-install current onto a separate partition
810 --------------------------------------------------
811 # In this approach we use a separate partition to hold
812 # current's root, 'usr', and 'var' directories. A partition
813 # holding "/", "/usr" and "/var" should be about 2GB in
816 <make sure you have good level 0 dumps>
819 make buildkernel KERNCONF=YOUR_KERNEL_HERE
820 <maybe newfs current's root partition>
821 <mount current's root partition on directory ${CURRENT_ROOT}>
822 make installworld DESTDIR=${CURRENT_ROOT}
823 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
824 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
825 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
826 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
827 <reboot into current>
828 <do a "native" rebuild/install as described in the previous section>
829 <maybe install compatibility libraries from src/lib/compat>
833 To upgrade in-place from 5.x-stable to current
834 ----------------------------------------------
835 <make sure you have good level 0 dumps>
837 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
839 <reboot in single user> [3]
846 Make sure that you've read the UPDATING file to understand the
847 tweaks to various things you need. At this point in the life
848 cycle of current, things change often and you are on your own
849 to cope. The defaults can also change, so please read ALL of
850 the UPDATING entries.
852 Also, if you are tracking -current, you must be subscribed to
853 freebsd-current@freebsd.org. Make sure that before you update
854 your sources that you have read and understood all the recent
855 messages there. If in doubt, please track -stable which has
858 [1] If you have third party modules, such as vmware, you
859 should disable them at this point so they don't crash your
862 [3] From the bootblocks, boot -s, and then do
867 adjkerntz -i # if CMOS is wall time
868 Also, when doing a major release upgrade, it is required that
869 you boot into single user mode to do the installworld.
871 [4] Note: This step is non-optional. Failure to do this step
872 can result in a significant reduction in the functionality of the
873 system. Attempting to do it by hand is not recommended and those
874 that pursue this avenue should read this file carefully, as well
875 as the archives of freebsd-current and freebsd-hackers mailing lists
876 for potential gotchas.
878 [5] Usually this step is a noop. However, from time to time
879 you may need to do this if you get unknown user in the following
880 step. It never hurts to do it all the time. You may need to
881 install a new mergemaster (cd src/usr.sbin/mergemaster && make
882 install) after the buildworld before this step if you last updated
883 from current before 20020224 or from -stable before 20020408.
885 [8] In order to have a kernel that can run the 4.x binaries
886 needed to do an installworld, you must include the COMPAT_FREEBSD4
887 option in your kernel. Failure to do so may leave you with a system
888 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
889 is required to run the 5.x binaries on more recent kernels.
891 Make sure that you merge any new devices from GENERIC since the
892 last time you updated your kernel config file.
894 [9] When checking out sources, you must include the -P flag to have
895 cvs prune empty directories.
897 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
898 "?=" instead of the "=" assignment operator, so that buildworld can
899 override the CPUTYPE if it needs to.
901 MAKEOBJDIRPREFIX must be defined in an environment variable, and
902 not on the command line, or in /etc/make.conf. buildworld will
903 warn if it is improperly defined.
906 This file contains a list, in reverse chronological order, of major
907 breakages in tracking -current. Not all things will be listed here,
908 and it only starts on October 16, 2004. Updating files can found in
909 previous releases if your system is older than this.
911 Copyright information:
913 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
915 Redistribution, publication, translation and use, with or without
916 modification, in full or in part, in any form or format of this
917 document are permitted without further permission from the author.
919 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
920 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
921 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
922 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
923 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
924 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
925 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
926 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
927 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
928 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
929 POSSIBILITY OF SUCH DAMAGE.
931 If you find this document useful, and you want to, you may buy the
934 Contact Warner Losh if you have any questions about your use of