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.
28 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
29 WITHOUT_LIBTHR are set.
32 The PCI code has been made aware of PCI domains. This means that
33 the location strings as used by pciconf(8) etc are now in the
34 following format: pci<domain>:<bus>:<device>[:<function>]. It
35 also means that consumers of <sys/pciio.h> potentially need to
36 be recompiled; this includes the hal and xorg-server ports.
39 The caching daemon (cached) was renamed to nscd. nscd.conf
40 configuration file should be used instead of cached.conf and
41 nscd_enable, nscd_pidfile and nscd_flags options should be used
42 instead of cached_enable, cached_pidfile and cached_flags in
46 The getfacl(1) utility now prints owning user and group name
47 instead of owning uid and gid in the three line comment header.
48 This is the same behavior as getfacl(1) on Solaris and Linux.
51 The new IPsec code is now compiled in using the IPSEC option. The
52 IPSEC option now requires "device crypto" be defined in your kernel
53 configuration. The FAST_IPSEC kernel option is now deprecated.
56 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
57 note the changed syntax - keep state is now on by default. Also
58 note the fact that ftp-proxy(8) has been changed from bottom up and
59 has been moved from libexec to usr/sbin. Changes in the ALTQ
60 handling also affect users of IPFW's ALTQ capabilities.
63 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
64 only IPsec supported by FreeBSD. The new IPsec stack
65 supports both IPv4 and IPv6. The kernel option will change
66 after the code changes have settled in. For now the kernel
67 option IPSEC is deprecated and FAST_IPSEC is the only option, that
68 will change after some settling time.
71 The wicontrol(8) utility has been removed from the base system. wi(4)
72 cards should be configured using ifconfig(8), see the man page for more
76 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
77 instead of the nve(4) driver. Please update your configuration
81 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
82 database if it is missing or older than the aliases file. If
83 desired, set the new rc.conf option sendmail_rebuild_aliases
84 to "YES" to restore that functionality.
87 The IPv4 multicast socket code has been considerably modified, and
88 moved to the file sys/netinet/in_mcast.c. Initial support for the
89 RFC 3678 Source-Specific Multicast Socket API has been added to
90 the IPv4 network stack.
92 Strict multicast and broadcast reception is now the default for
93 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
96 The RFC 1724 hack for interface selection has been removed; the use
97 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
98 been added to replace it. Consumers such as routed will soon be
99 updated to reflect this.
101 These changes affect users who are running routed(8) or rdisc(8)
102 from the FreeBSD base system on point-to-point or unnumbered
106 The net80211 layer has changed significantly and all wireless
107 drivers that depend on it need to be recompiled. Further these
108 changes require that any program that interacts with the wireless
109 support in the kernel be recompiled; this includes: ifconfig,
110 wpa_supplicant, hostapd, and wlanstats. Users must also, for
111 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
112 if they use modules for wireless support. These modules implement
113 scanning support for station and ap modes, respectively. Failure
114 to load the appropriate module before marking a wireless interface
115 up will result in a message to the console and the device not
119 The pam_nologin(8) module ceases to provide an authentication
120 function and starts providing an account management function.
121 Consequent changes to /etc/pam.d should be brought in using
122 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
123 need manual editing as follows. Locate this line (or similar):
125 auth required pam_nologin.so no_warn
127 and change it according to this example:
129 account required pam_nologin.so no_warn
131 That is, the first word needs to be changed from "auth" to
132 "account". The new line can be moved to the account section
133 within the file for clarity. Not updating pam.conf(5) files
134 will result in nologin(5) ignored by the respective services.
137 The ether_ioctl() function has been synchronized with ioctl(2)
138 and ifnet.if_ioctl. Due to that, the size of one of its arguments
139 has changed on 64-bit architectures. All kernel modules using
140 ether_ioctl() need to be rebuilt on such architectures.
143 Improved INCLUDE_CONFIG_FILE support has been introduced to the
144 config(8) utility. In order to take advantage of this new
145 functionality, you are expected to recompile and install
146 src/usr.sbin/config. If you don't rebuild config(8), and your
147 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
148 build will be broken because of a missing "kernconfstring"
152 Symbol versioning is enabled by default. To disable it, use
153 option WITHOUT_SYMVER. It is not advisable to attempt to
154 disable symbol versioning once it is enabled; your installworld
155 will break because a symbol version-less libc will get installed
156 before the install tools. As a result, the old install tools,
157 which previously had symbol dependencies to FBSD_1.0, will fail
158 because the freshly installed libc will not have them.
160 The default threading library (providing "libpthread") has been
161 changed to libthr. If you wish to have libkse as your default,
162 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
165 The ABI breakage in sendmail(8)'s libmilter has been repaired
166 so it is no longer necessary to recompile mail filters (aka,
167 milters). If you recompiled mail filters after the 20070408
168 note, it is not necessary to recompile them again.
171 The new trunk(4) driver has been renamed to lagg(4) as it better
172 reflects its purpose. ifconfig will need to be recompiled.
175 sendmail(8) has been updated to version 8.14.1. Mail filters
176 (aka, milters) compiled against the libmilter included in the
177 base operating system should be recompiled.
180 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
181 In order to use them one must agree to the respective LICENSE in
182 share/doc/legal and define legal.intel_<name>.license_ack=1 via
183 loader.conf(5) or kenv(1). Make sure to deinstall the now
184 deprecated modules from the respective firmware ports.
187 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
188 were removed from FreeBSD's libc. These originally came from INRIA
189 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
190 deprecated in previous releases.
191 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
192 replace it as a more portable (and re-entrant) API.
195 To support interrupt filtering a modification to the newbus API
196 has occurred, ABI was broken and __FreeBSD_version was bumped
197 to 700031. Please make sure that your kernel and modules are in
199 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
202 The IPv6 multicast forwarding code may now be loaded into GENERIC
203 kernels by loading the ip_mroute.ko module. This is built into the
204 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
205 set; see src.conf(5) for more information.
208 The output of netstat -r has changed. Without -n, we now only
209 print a "network name" without the prefix length if the network
210 address and mask exactly match a Class A/B/C network, and an entry
211 exists in the nsswitch "networks" map.
212 With -n, we print the full unabbreviated CIDR network prefix in
213 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
214 This change is in preparation for changes such as equal-cost
215 multipath, and to more generally assist operational deployment
216 of FreeBSD as a modern IPv4 router.
219 PIM has been turned on by default in the IPv4 multicast
220 routing code. The kernel option 'PIM' has now been removed.
221 PIM is now built by default if option 'MROUTING' is specified.
222 It may now be loaded into GENERIC kernels by loading the
226 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
227 has been removed. Its functionality may be achieved by explicitly
228 configuring gif(4) interfaces and using the 'phyint' keyword in
230 XORP does not support source-routed IPv4 multicast tunnels nor the
231 integrated IPIP tunneling, therefore it is not affected by this
232 change. The __FreeBSD_version macro has been bumped to 700030.
235 Support for PCI Message Signalled Interrupts has been
236 re-enabled in the bge driver, only for those chips which are
237 believed to support it properly. If there are any problems,
238 MSI can be disabled completely by setting the
239 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
243 Support for PCI Message Signalled Interrupts has been
244 disabled again in the bge driver. Many revisions of the
245 hardware fail to support it properly. Support can be
246 re-enabled by removing the #define of BGE_DISABLE_MSI in
247 "src/sys/dev/bge/if_bge.c".
250 Support for PCI Message Signalled Interrupts has been added
251 to the bge driver. If there are any problems, MSI can be
252 disabled completely by setting the 'hw.pci.enable_msi' and
253 'hw.pci.enable_msix' tunables to 0 in the loader.
256 The removal of several facets of the experimental Threading
257 system from the kernel means that the proc and thread structures
258 have changed quite a bit. I suggest all kernel modules that might
259 reference these structures be recompiled.. Especially the
263 Sound infrastructure has been updated with various fixes and
264 improvements. Most of the changes are pretty much transparent,
265 with exceptions of followings:
266 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
267 moved to their own dev sysctl nodes, for example:
268 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
269 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
270 own chardev in the form of "dsp%d.<function>%d", where <function>
271 is p = playback, r = record and v = virtual, respectively. Users
272 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
273 This does not affect those who are using "/dev/dsp".
276 The following binaries have been disconnected from the build:
277 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
278 and mount_std. The functionality of these programs has been
279 moved into the mount program. For example, to mount a devfs
280 filesystem, instead of using mount_devfs, use: "mount -t devfs".
281 This does not affect entries in /etc/fstab, since entries in
282 /etc/fstab are always processed with "mount -t fstype".
285 Support for PCI Message Signalled Interrupts on i386 and amd64
286 has been added to the kernel and various drivers will soon be
287 updated to use MSI when it is available. If there are any problems,
288 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
289 and 'hw.pci.enable_msix' tunables to 0 in the loader.
292 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
293 The lockmgr object layout has been changed as a result of having
294 a lock_object embedded in it. As a consequence all file system
295 kernel modules must be re-compiled. The mutex profiling man page
296 has not yet been updated to reflect this change.
299 KSE in the kernel has now been made optional and turned on by
300 default. Use 'nooption KSE' in your kernel config to turn it
301 off. All kernel modules *must* be recompiled after this change.
302 There-after, modules from a KSE kernel should be compatible with
303 modules from a NOKSE kernel due to the temporary padding fields
304 added to 'struct proc'.
307 mrouted and its utilities have been removed from the base system.
310 Some ioctl(2) command codes have changed. Full backward ABI
311 compatibility is provided if the "options COMPAT_FREEBSD6" is
312 present in the kernel configuration file. Make sure to add
313 this option to your kernel config file, or recompile X.Org
314 and the rest of ports; otherwise they may refuse to work.
317 tcpslice has been removed from the base system.
320 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
321 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
322 systat needs to be rebuilt.
325 libpcap updated to v0.9.4 and tcpdump to v3.9.4
328 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
329 for IPFIREWALL_FORWARD is now as it was before when it was first
330 committed and for years after. The behaviour is now ON.
333 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
334 Now it can decrypt files created from different architectures.
335 Unfortunately, it is no longer able to decrypt a cipher text
336 generated with an older version on 64 bit architectures.
337 If you have such a file, you need old utility to decrypt it.
340 The interface version of the i4b kernel part has changed. So
341 after updating the kernel sources and compiling a new kernel,
342 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
343 be rebuilt, and vice versa.
346 The XBOX kernel now defaults to the nfe(4) driver instead of
347 the nve(4) driver. Please update your configuration
351 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
352 PCnet family of NICs has been removed. The new le(4) driver serves
353 as an equivalent but cross-platform replacement with the pcn(4)
354 driver still providing performance-optimized support for the subset
355 of AMD Am79C971 PCnet-FAST and greater chips as before.
358 The machdep.* sysctls and the adjkerntz utility have been
359 modified a bit. The new adjkerntz utility uses the new
360 sysctl names and sysctlbyname() calls, so it may be impossible
361 to run an old /sbin/adjkerntz utility in single-user mode
362 with a new kernel. Replace the `adjkerntz -i' step before
363 `make installworld' with:
365 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
367 and proceed as usual with the rest of the installworld-stage
368 steps. Otherwise, you risk installing binaries with their
369 timestamp set several hours in the future, especially if
370 you are running with local time set to GMT+X hours.
373 The ip6fw utility has been removed. The behavior provided by
374 ip6fw has been in ipfw2 for a good while and the rc.d scripts
375 have been updated to deal with it. There are some rules that
376 might not migrate cleanly. Use rc.firewall6 as a template to
380 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
381 attachments have been removed. Make sure to configure scc(4)
382 on sparc64. Note also that by default puc(4) will use uart(4)
383 and not sio(4) for serial ports because interrupt handling has
384 been optimized for multi-port serial cards and only uart(4)
385 implements the interface to support it.
388 The scc(4) driver replaces puc(4) for Serial Communications
389 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
390 Z8530. On sparc64, it is advised to add scc(4) to the kernel
391 configuration to make sure that the serial ports remain
395 Most world/kernel related NO_* build options changed names.
396 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
397 after FreeBSD ports) and should be set in /etc/src.conf
398 (the src.conf(5) manpage is provided). Full backwards
399 compatibility is maintained for the time being though it's
400 highly recommended to start moving old options out of the
401 system-wide /etc/make.conf file into the new /etc/src.conf
402 while also properly renaming them. More conversions will
403 likely follow. Posting to current@:
405 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
408 The NETSMBCRYPTO kernel option has been retired because its
409 functionality is always included in NETSMB and smbfs.ko now.
412 The TDFX_LINUX kernel option was retired and replaced by the
413 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
414 kernel module. Loading it alone should suffice to get 3dfx support
415 for Linux apps because it will pull in 3dfx.ko and linux.ko through
419 The 'audit' group was added to support the new auditing functionality
420 in the base system. Be sure to follow the directions for updating,
421 including the requirement to run mergemaster -p.
424 The kernel ABI to file system modules was changed on i386.
425 Please make sure that your kernel and modules are in sync.
428 This actually occured some time ago, but installing the kernel
429 now also installs a bunch of symbol files for the kernel modules.
430 This increases the size of /boot/kernel to about 67Mbytes. You
431 will need twice this if you will eventually back this up to kernel.old
432 on your next install.
433 If you have a shortage of room in your root partition, you should add
434 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
435 to your /etc/make.conf.
438 libc's malloc implementation has been replaced. This change has the
439 potential to uncover application bugs that previously went unnoticed.
440 See the malloc(3) manual page for more details.
443 The generic netgraph(4) cookie has been changed. If you upgrade
444 kernel passing this point, you also need to upgrade userland
445 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
448 si(4)'s device files now contain the unit number.
449 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
452 The kernel ABI was mostly destroyed due to a change in the size
453 of struct lock_object which is nested in other structures such
454 as mutexes which are nested in all sorts of other structures.
455 Make sure your kernel and modules are in sync.
458 The page coloring algorithm in the VM subsystem was converted
459 from tuning with kernel options to autotuning. Please remove
460 any PQ_* option except PQ_NOOPT from your kernel config.
463 The net80211-related tools in the tools/tools/ath directory
464 have been moved to tools/tools/net80211 and renamed with a
465 "wlan" prefix. Scripts that use them should be adjusted
469 Scripts in the local_startup directories (as defined in
470 /etc/defaults/rc.conf) that have the new rc.d semantics will
471 now be run as part of the base system rcorder. If there are
472 errors or problems with one of these local scripts, it could
473 cause boot problems. If you encounter such problems, boot in
474 single user mode, remove that script from the */rc.d directory.
475 Please report the problem to the port's maintainer, and the
476 freebsd-ports@freebsd.org mailing list.
479 The nodev mount option was deprecated in RELENG_6 (where it
480 was a no-op), and is now unsupported. If you have nodev or dev listed
481 in /etc/fstab, remove it, otherwise it will result in a mount error.
484 ABI between ipfw(4) and ipfw(8) has been changed. You need
485 to rebuild ipfw(8) when rebuilding kernel.
488 rp(4)'s device files now contain the unit number.
489 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
492 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
493 Its /etc/rc.conf.d configuration file has been `ppp' from
494 the beginning, and hence there is no need to touch it.
497 Now most modules get their build-time options from the kernel
498 configuration file. A few modules still have fixed options
499 due to their non-conformant implementation, but they will be
500 corrected eventually. You may need to review the options of
501 the modules in use, explicitly specify the non-default options
502 in the kernel configuration file, and rebuild the kernel and
506 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
507 to turn polling(4) on your interfaces.
510 The old bridge(4) implementation was retired. The new
511 if_bridge(4) serves as a full functional replacement.
514 The ai_addrlen of a struct addrinfo was changed to a socklen_t
515 to conform to POSIX-2001. This change broke an ABI
516 compatibility on 64 bit architecture. You have to recompile
517 userland programs that use getaddrinfo(3) on 64 bit
521 RELENG_6 branched here.
524 The pccard_ifconfig rc.conf variable has been removed and a new
525 variable, ifconfig_DEFAULT has been introduced. Unlike
526 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
527 do not have ifconfig_ifn entries rather than just those in
528 removable_interfaces.
531 Some previous versions of PAM have permitted the use of
532 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
533 to third party PAM modules in /usr/local/lib. A change has been
534 made to require the use of absolute paths in order to avoid
535 ambiguity and dependence on library path configuration, which may
536 affect existing configurations.
539 Major changes to network interface API. All drivers must be
540 recompiled. Drivers not in the base system will need to be
541 updated to the new APIs.
544 Changes were made to kinfo_proc in sys/user.h. Please recompile
545 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
546 will not behave correctly.
548 The API and ABI for hwpmc(4) have changed with the addition
549 of sampling support. Please recompile lib/libpmc(3) and
550 usr.sbin/{pmcstat,pmccontrol}.
553 The OpenBSD dhclient was imported in place of the ISC dhclient
554 and the network interface configuration scripts were updated
555 accordingly. If you use DHCP to configure your interfaces, you
556 must now run devd. Also, DNS updating was lost so you will need
557 to find a workaround if you use this feature.
559 The '_dhcp' user was added to support the OpenBSD dhclient. Be
560 sure to run mergemaster -p (like you are supposed to do every time
564 if_bridge was added to the tree. This has changed struct ifnet.
565 Please recompile userland and all network related modules.
568 The n_net of a struct netent was changed to an uint32_t, and
569 1st argument of getnetbyaddr() was changed to an uint32_t, to
570 conform to POSIX-2001. These changes broke an ABI
571 compatibility on 64 bit architecture. With these changes,
572 shlib major of libpcap was bumped. You have to recompile
573 userland programs that use getnetbyaddr(3), getnetbyname(3),
574 getnetent(3) and/or libpcap on 64 bit architecture.
577 Kernel parsing of extra options on '#!' first lines of shell
578 scripts has changed. Lines with multiple options likely will
579 fail after this date. For full details, please see
580 http://people.freebsd.org/~gad/Updating-20050528.txt
583 The packet filter (pf) code has been updated to OpenBSD 3.7
584 Please note the changed anchor syntax and the fact that
585 authpf(8) now needs a mounted fdescfs(5) to function.
588 The NO_MIXED_MODE kernel option has been removed from the i386
589 amd64 platforms as its use has been superceded by the new local
590 APIC timer code. Any kernel config files containing this option
594 The on-disk format of LC_CTYPE files was changed to be machine
595 independent. Please make sure NOT to use NO_CLEAN buildworld
596 when crossing this point. Crossing this point also requires
597 recompile or reinstall of all locale depended packages.
600 The ifi_epoch member of struct if_data has been changed to
601 contain the uptime at which the interface was created or the
602 statistics zeroed rather then the wall clock time because
603 wallclock time may go backwards. This should have no impact
604 unless an snmp implementation is using this value (I know of
608 The acpi_perf and acpi_throttle drivers are now part of the
609 acpi(4) main module. They are no longer built separately.
612 The layout of struct image_params has changed. You have to
613 recompile all compatibility modules (linux, svr4, etc) for use
617 The p4tcc driver has been merged into cpufreq(4). This makes
618 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
619 compile in "device cpufreq" to restore this functionality.
622 The responsibility of recomputing the file system summary of
623 a SoftUpdates-enabled dirty volume has been transferred to the
624 background fsck. A rebuild of fsck(8) utility is recommended
625 if you have updated the kernel.
627 To get the old behavior (recompute file system summary at mount
628 time), you can set vfs.ffs.compute_summary_at_mount=1 before
629 mounting the new volume.
632 The cpufreq import is complete. As part of this, the sysctls for
633 acpi(4) throttling have been removed. The power_profile script
634 has been updated, so you can use performance/economy_cpu_freq in
635 rc.conf(5) to set AC on/offline cpu frequencies.
638 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
639 requires recompiling libnetgraph and userland netgraph utilities.
642 Support for abbreviated forms of a number of ipfw options is
643 now deprecated. Warnings are printed to stderr indicating the
644 correct full form when a match occurs. Some abbreviations may
645 be supported at a later date based on user feedback. To be
646 considered for support, abbreviations must be in use prior to
647 this commit and unlikely to be confused with current key words.
650 By a popular demand, a lot of NOFOO options were renamed
651 to NO_FOO (see bsd.compat.mk for a full list). The old
652 spellings are still supported, but will cause annoying
653 warnings on stderr. Make sure you upgrade properly (see
654 the COMMON ITEMS: section later in this file).
657 Auto-loading of ancillary wlan modules such as wlan_wep has
658 been temporarily disabled; you need to statically configure
659 the modules you need into your kernel or explicitly load them
660 prior to use. Specifically, if you intend to use WEP encryption
661 with an 802.11 device load/configure wlan_wep; if you want to
662 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
663 and wlan_xauth as required.
666 The behaviour of ppp(8) has changed slightly. If lqr is enabled
667 (``enable lqr''), older versions would revert to LCP ECHO mode on
668 negotiation failure. Now, ``enable echo'' is required for this
669 behaviour. The ppp version number has been bumped to 3.4.2 to
673 The wlan support has been updated to split the crypto support
674 into separate modules. For static WEP you must configure the
675 wlan_wep module in your system or build and install the module
676 in place where it can be loaded (the kernel will auto-load
677 the module when a wep key is configured).
680 The ath driver has been updated to split the tx rate control
681 algorithm into a separate module. You need to include either
682 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
685 Support for systems with an 80386 CPU has been removed. Please
686 use FreeBSD 5.x or earlier on systems with an 80386.
689 We have had a hack which would mount the root filesystem
690 R/W if the device were named 'md*'. As part of the vnode
691 work I'm doing I have had to remove this hack. People
692 building systems which use preloaded MD root filesystems
693 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
694 their /etc/rc scripts.
697 FreeBSD 5.3 shipped here.
700 The size of struct tcpcb has changed again due to the removal
701 of RFC1644 T/TCP. You have to recompile userland programs that
702 read kmem for tcp sockets directly (netstat, sockstat, etc.)
705 The size of struct tcpcb has changed. You have to recompile
706 userland programs that read kmem for tcp sockets directly
707 (netstat, sockstat, etc.)
710 RELENG_5 branched here. For older entries, please see updating
711 in the RELENG_5 branch.
717 Avoid using make -j when upgrading. From time to time in the
718 past there have been problems using -j with buildworld and/or
719 installworld. This is especially true when upgrading between
720 "distant" versions (eg one that cross a major release boundary
721 or several minor releases, or when several months have passed
722 on the -current branch).
724 Sometimes, obscure build problems are the result of environment
725 poisoning. This can happen because the make utility reads its
726 environment when searching for values for global variables.
727 To run your build attempts in an "environmental clean room",
728 prefix all make commands with 'env -i '. See the env(1) manual
729 page for more details.
731 When upgrading from one major version to another it is generally
732 best to upgrade to the latest code in the currently installed branch
733 first, then do an upgrade to the new branch. This is the best-tested
734 upgrade path, and has the highest probability of being successful.
735 Please try this approach before reporting problems with a major
740 If you are updating from a prior version of FreeBSD (even one just
741 a few days old), you should follow this procedure. It is the most
742 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
744 make kernel-toolchain
745 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
746 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
748 To test a kernel once
749 ---------------------
750 If you just want to boot a kernel once (because you are not sure
751 if it works, or if you want to boot a known bad kernel to provide
752 debugging information) run
753 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
754 nextboot -k testkernel
756 To just build a kernel when you know that it won't mess you up
757 --------------------------------------------------------------
758 This assumes you are already running a 5.X system. Replace
759 ${arch} with the architecture of your machine (e.g. "i386",
760 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
762 cd src/sys/${arch}/conf
763 config KERNEL_NAME_HERE
764 cd ../compile/KERNEL_NAME_HERE
769 If this fails, go to the "To build a kernel" section.
771 To rebuild everything and install it on the current system.
772 -----------------------------------------------------------
773 # Note: sometimes if you are running current you gotta do more than
774 # is listed here if you are upgrading from a really old current.
776 <make sure you have good level 0 dumps>
778 make kernel KERNCONF=YOUR_KERNEL_HERE
780 <reboot in single user> [3]
788 To cross-install current onto a separate partition
789 --------------------------------------------------
790 # In this approach we use a separate partition to hold
791 # current's root, 'usr', and 'var' directories. A partition
792 # holding "/", "/usr" and "/var" should be about 2GB in
795 <make sure you have good level 0 dumps>
798 make buildkernel KERNCONF=YOUR_KERNEL_HERE
799 <maybe newfs current's root partition>
800 <mount current's root partition on directory ${CURRENT_ROOT}>
801 make installworld DESTDIR=${CURRENT_ROOT}
802 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
803 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
804 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
805 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
806 <reboot into current>
807 <do a "native" rebuild/install as described in the previous section>
808 <maybe install compatibility libraries from src/lib/compat>
812 To upgrade in-place from 5.x-stable to current
813 ----------------------------------------------
814 <make sure you have good level 0 dumps>
816 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
818 <reboot in single user> [3]
825 Make sure that you've read the UPDATING file to understand the
826 tweaks to various things you need. At this point in the life
827 cycle of current, things change often and you are on your own
828 to cope. The defaults can also change, so please read ALL of
829 the UPDATING entries.
831 Also, if you are tracking -current, you must be subscribed to
832 freebsd-current@freebsd.org. Make sure that before you update
833 your sources that you have read and understood all the recent
834 messages there. If in doubt, please track -stable which has
837 [1] If you have third party modules, such as vmware, you
838 should disable them at this point so they don't crash your
841 [3] From the bootblocks, boot -s, and then do
846 adjkerntz -i # if CMOS is wall time
847 Also, when doing a major release upgrade, it is required that
848 you boot into single user mode to do the installworld.
850 [4] Note: This step is non-optional. Failure to do this step
851 can result in a significant reduction in the functionality of the
852 system. Attempting to do it by hand is not recommended and those
853 that pursue this avenue should read this file carefully, as well
854 as the archives of freebsd-current and freebsd-hackers mailing lists
855 for potential gotchas.
857 [5] Usually this step is a noop. However, from time to time
858 you may need to do this if you get unknown user in the following
859 step. It never hurts to do it all the time. You may need to
860 install a new mergemaster (cd src/usr.sbin/mergemaster && make
861 install) after the buildworld before this step if you last updated
862 from current before 20020224 or from -stable before 20020408.
864 [8] In order to have a kernel that can run the 4.x binaries
865 needed to do an installworld, you must include the COMPAT_FREEBSD4
866 option in your kernel. Failure to do so may leave you with a system
867 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
868 is required to run the 5.x binaries on more recent kernels.
870 Make sure that you merge any new devices from GENERIC since the
871 last time you updated your kernel config file.
873 [9] When checking out sources, you must include the -P flag to have
874 cvs prune empty directories.
876 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
877 "?=" instead of the "=" assignment operator, so that buildworld can
878 override the CPUTYPE if it needs to.
880 MAKEOBJDIRPREFIX must be defined in an environment variable, and
881 not on the command line, or in /etc/make.conf. buildworld will
882 warn if it is improperly defined.
885 This file contains a list, in reverse chronological order, of major
886 breakages in tracking -current. Not all things will be listed here,
887 and it only starts on October 16, 2004. Updating files can found in
888 previous releases if your system is older than this.
890 Copyright information:
892 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
894 Redistribution, publication, translation and use, with or without
895 modification, in full or in part, in any form or format of this
896 document are permitted without further permission from the author.
898 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
899 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
900 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
901 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
902 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
903 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
904 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
905 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
906 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
907 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
908 POSSIBILITY OF SUCH DAMAGE.
910 If you find this document useful, and you want to, you may buy the
913 Contact Warner Losh if you have any questions about your use of