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 7.x IS SLOW:
12 FreeBSD 7.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 ether_ioctl() function has been synchronized with ioctl(2)
26 and ifnet.if_ioctl. Due to that, the size of one of its arguments
27 has changed on 64-bit architectures. All kernel modules using
28 ether_ioctl() need to be rebuilt on such architectures.
31 Improved INCLUDE_CONFIG_FILE support has been introduced to the
32 config(8) utility. In order to take advantage of this new
33 functionality, you are expected to recompile and install
34 src/usr.sbin/config. If you don't rebuild config(8), and your
35 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
36 build will be broken because of a missing "kernconfstring"
40 Symbol versioning is enabled by default. To disable it, use
41 option WITHOUT_SYMVER. It is not advisable to attempt to
42 disable symbol versioning once it is enabled; your installworld
43 will break because a symbol version-less libc will get installed
44 before the install tools. As a result, the old install tools,
45 which previously had symbol dependencies to FBSD_1.0, will fail
46 because the freshly installed libc will not have them.
48 The default threading library has been changed to libthr. If
49 you wish to have libpthread as your default, use option
50 DEFAULT_THREAD_LIB=libpthread for the buildworld.
53 The ABI breakage in sendmail(8)'s libmilter has been repaired
54 so it is no longer necessary to recompile mail filters (aka,
55 milters). If you recompiled mail filters after the 20070408
56 note, it is not necessary to recompile them again.
59 The new trunk(4) driver has been renamed to lagg(4) as it better
60 reflects its purpose. ifconfig will need to be recompiled.
63 sendmail(8) has been updated to version 8.14.1. Mail filters
64 (aka, milters) compiled against the libmilter included in the
65 base operating system should be recompiled.
68 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
69 In order to use them one must agree to the respective LICENSE in
70 share/doc/legal and define legal.intel_<name>.license_ack=1 via
71 loader.conf(5) or kenv(1). Make sure to deinstall the now
72 deprecated modules from the respective firmware ports.
75 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
76 were removed from FreeBSD's libc. These originally came from INRIA
77 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
78 deprecated in previous releases.
79 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
80 replace it as a more portable (and re-entrant) API.
83 To support interrupt filtering a modification to the newbus API
84 has occurred, ABI was broken and __FreeBSD_version was bumped
85 to 700031. Please make sure that your kernel and modules are in
87 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
90 The IPv6 multicast forwarding code may now be loaded into GENERIC
91 kernels by loading the ip_mroute.ko module. This is built into the
92 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
93 set; see src.conf(5) for more information.
96 The output of netstat -r has changed. Without -n, we now only
97 print a "network name" without the prefix length if the network
98 address and mask exactly match a Class A/B/C network, and an entry
99 exists in the nsswitch "networks" map.
100 With -n, we print the full unabbreviated CIDR network prefix in
101 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
102 This change is in preparation for changes such as equal-cost
103 multipath, and to more generally assist operational deployment
104 of FreeBSD as a modern IPv4 router.
107 PIM has been turned on by default in the IPv4 multicast
108 routing code. The kernel option 'PIM' has now been removed.
109 PIM is now built by default if option 'MROUTING' is specified.
110 It may now be loaded into GENERIC kernels by loading the
114 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
115 has been removed. Its functionality may be achieved by explicitly
116 configuring gif(4) interfaces and using the 'phyint' keyword in
118 XORP does not support source-routed IPv4 multicast tunnels nor the
119 integrated IPIP tunneling, therefore it is not affected by this
120 change. The __FreeBSD_version macro has been bumped to 700030.
123 Support for PCI Message Signalled Interrupts has been
124 re-enabled in the bge driver, only for those chips which are
125 believed to support it properly. If there are any problems,
126 MSI can be disabled completely by setting the
127 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
131 Support for PCI Message Signalled Interrupts has been
132 disabled again in the bge driver. Many revisions of the
133 hardware fail to support it properly. Support can be
134 re-enabled by removing the #define of BGE_DISABLE_MSI in
135 "src/sys/dev/bge/if_bge.c".
138 Support for PCI Message Signalled Interrupts has been added
139 to the bge driver. If there are any problems, MSI can be
140 disabled completely by setting the 'hw.pci.enable_msi' and
141 'hw.pci.enable_msix' tunables to 0 in the loader.
144 The removal of several facets of the experimental Threading
145 system from the kernel means that the proc and thread structures
146 have changed quite a bit. I suggest all kernel modules that might
147 reference these structures be recompiled.. Especially the
151 Sound infrastructure has been updated with various fixes and
152 improvements. Most of the changes are pretty much transparent,
153 with exceptions of followings:
154 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
155 moved to their own dev sysctl nodes, for example:
156 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
157 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
158 own chardev in the form of "dsp%d.<function>%d", where <function>
159 is p = playback, r = record and v = virtual, respectively. Users
160 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
161 This does not affect those who are using "/dev/dsp".
164 The following binaries have been disconnected from the build:
165 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
166 and mount_std. The functionality of these programs has been
167 moved into the mount program. For example, to mount a devfs
168 filesystem, instead of using mount_devfs, use: "mount -t devfs".
169 This does not affect entries in /etc/fstab, since entries in
170 /etc/fstab are always processed with "mount -t fstype".
173 Support for PCI Message Signalled Interrupts on i386 and amd64
174 has been added to the kernel and various drivers will soon be
175 updated to use MSI when it is available. If there are any problems,
176 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
177 and 'hw.pci.enable_msix' tunables to 0 in the loader.
180 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
181 The lockmgr object layout has been changed as a result of having
182 a lock_object embedded in it. As a consequence all file system
183 kernel modules must be re-compiled. The mutex profiling man page
184 has not yet been updated to reflect this change.
187 KSE in the kernel has now been made optional and turned on by
188 default. Use 'nooption KSE' in your kernel config to turn it
189 off. All kernel modules *must* be recompiled after this change.
190 There-after, modules from a KSE kernel should be compatible with
191 modules from a NOKSE kernel due to the temporary padding fields
192 added to 'struct proc'.
195 mrouted and its utilities have been removed from the base system.
198 Some ioctl(2) command codes have changed. Full backward ABI
199 compatibility is provided if the "options COMPAT_FREEBSD6" is
200 present in the kernel configuration file. Make sure to add
201 this option to your kernel config file, or recompile X.Org
202 and the rest of ports; otherwise they may refuse to work.
205 tcpslice has been removed from the base system.
208 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
209 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
210 systat needs to be rebuilt.
213 libpcap updated to v0.9.4 and tcpdump to v3.9.4
216 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
217 for IPFIREWALL_FORWARD is now as it was before when it was first
218 committed and for years after. The behaviour is now ON.
221 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
222 Now it can decrypt files created from different architectures.
223 Unfortunately, it is no longer able to decrypt a cipher text
224 generated with an older version on 64 bit architectures.
225 If you have such a file, you need old utility to decrypt it.
228 The interface version of the i4b kernel part has changed. So
229 after updating the kernel sources and compiling a new kernel,
230 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
231 be rebuilt, and vice versa.
234 The XBOX kernel now defaults to the nfe(4) driver instead of
235 the nve(4) driver. Please update your configuration
239 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
240 PCnet family of NICs has been removed. The new le(4) driver serves
241 as an equivalent but cross-platform replacement with the pcn(4)
242 driver still providing performance-optimized support for the subset
243 of AMD Am79C971 PCnet-FAST and greater chips as before.
246 The machdep.* sysctls and the adjkerntz utility have been
247 modified a bit. The new adjkerntz utility uses the new
248 sysctl names and sysctlbyname() calls, so it may be impossible
249 to run an old /sbin/adjkerntz utility in single-user mode
250 with a new kernel. Replace the `adjkerntz -i' step before
251 `make installworld' with:
253 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
255 and proceed as usual with the rest of the installworld-stage
256 steps. Otherwise, you risk installing binaries with their
257 timestamp set several hours in the future, especially if
258 you are running with local time set to GMT+X hours.
261 The ip6fw utility has been removed. The behavior provided by
262 ip6fw has been in ipfw2 for a good while and the rc.d scripts
263 have been updated to deal with it. There are some rules that
264 might not migrate cleanly. Use rc.firewall6 as a template to
268 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
269 attachments have been removed. Make sure to configure scc(4)
270 on sparc64. Note also that by default puc(4) will use uart(4)
271 and not sio(4) for serial ports because interrupt handling has
272 been optimized for multi-port serial cards and only uart(4)
273 implements the interface to support it.
276 The scc(4) driver replaces puc(4) for Serial Communications
277 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
278 Z8530. On sparc64, it is advised to add scc(4) to the kernel
279 configuration to make sure that the serial ports remain
283 Most world/kernel related NO_* build options changed names.
284 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
285 after FreeBSD ports) and should be set in /etc/src.conf
286 (the src.conf(5) manpage is provided). Full backwards
287 compatibility is maintained for the time being though it's
288 highly recommended to start moving old options out of the
289 system-wide /etc/make.conf file into the new /etc/src.conf
290 while also properly renaming them. More conversions will
291 likely follow. Posting to current@:
293 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
296 The NETSMBCRYPTO kernel option has been retired because its
297 functionality is always included in NETSMB and smbfs.ko now.
300 The TDFX_LINUX kernel option was retired and replaced by the
301 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
302 kernel module. Loading it alone should suffice to get 3dfx support
303 for Linux apps because it will pull in 3dfx.ko and linux.ko through
307 The 'audit' group was added to support the new auditing functionality
308 in the base system. Be sure to follow the directions for updating,
309 including the requirement to run mergemaster -p.
312 The kernel ABI to file system modules was changed on i386.
313 Please make sure that your kernel and modules are in sync.
316 This actually occured some time ago, but installing the kernel
317 now also installs a bunch of symbol files for the kernel modules.
318 This increases the size of /boot/kernel to about 67Mbytes. You
319 will need twice this if you will eventually back this up to kernel.old
320 on your next install.
321 If you have a shortage of room in your root partition, you should add
322 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
323 to your /etc/make.conf.
326 libc's malloc implementation has been replaced. This change has the
327 potential to uncover application bugs that previously went unnoticed.
328 See the malloc(3) manual page for more details.
331 The generic netgraph(4) cookie has been changed. If you upgrade
332 kernel passing this point, you also need to upgrade userland
333 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
336 si(4)'s device files now contain the unit number.
337 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
340 The kernel ABI was mostly destroyed due to a change in the size
341 of struct lock_object which is nested in other structures such
342 as mutexes which are nested in all sorts of other structures.
343 Make sure your kernel and modules are in sync.
346 The page coloring algorithm in the VM subsystem was converted
347 from tuning with kernel options to autotuning. Please remove
348 any PQ_* option except PQ_NOOPT from your kernel config.
351 The net80211-related tools in the tools/tools/ath directory
352 have been moved to tools/tools/net80211 and renamed with a
353 "wlan" prefix. Scripts that use them should be adjusted
357 Scripts in the local_startup directories (as defined in
358 /etc/defaults/rc.conf) that have the new rc.d semantics will
359 now be run as part of the base system rcorder. If there are
360 errors or problems with one of these local scripts, it could
361 cause boot problems. If you encounter such problems, boot in
362 single user mode, remove that script from the */rc.d directory.
363 Please report the problem to the port's maintainer, and the
364 freebsd-ports@freebsd.org mailing list.
367 The nodev mount option was deprecated in RELENG_6 (where it
368 was a no-op), and is now unsupported. If you have nodev or dev listed
369 in /etc/fstab, remove it, otherwise it will result in a mount error.
372 ABI between ipfw(4) and ipfw(8) has been changed. You need
373 to rebuild ipfw(8) when rebuilding kernel.
376 rp(4)'s device files now contain the unit number.
377 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
380 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
381 Its /etc/rc.conf.d configuration file has been `ppp' from
382 the beginning, and hence there is no need to touch it.
385 Now most modules get their build-time options from the kernel
386 configuration file. A few modules still have fixed options
387 due to their non-conformant implementation, but they will be
388 corrected eventually. You may need to review the options of
389 the modules in use, explicitly specify the non-default options
390 in the kernel configuration file, and rebuild the kernel and
394 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
395 to turn polling(4) on your interfaces.
398 The old bridge(4) implementation was retired. The new
399 if_bridge(4) serves as a full functional replacement.
402 The ai_addrlen of a struct addrinfo was changed to a socklen_t
403 to conform to POSIX-2001. This change broke an ABI
404 compatibility on 64 bit architecture. You have to recompile
405 userland programs that use getaddrinfo(3) on 64 bit
409 RELENG_6 branched here.
412 The pccard_ifconfig rc.conf variable has been removed and a new
413 variable, ifconfig_DEFAULT has been introduced. Unlike
414 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
415 do not have ifconfig_ifn entries rather than just those in
416 removable_interfaces.
419 Some previous versions of PAM have permitted the use of
420 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
421 to third party PAM modules in /usr/local/lib. A change has been
422 made to require the use of absolute paths in order to avoid
423 ambiguity and dependence on library path configuration, which may
424 affect existing configurations.
427 Major changes to network interface API. All drivers must be
428 recompiled. Drivers not in the base system will need to be
429 updated to the new APIs.
432 Changes were made to kinfo_proc in sys/user.h. Please recompile
433 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
434 will not behave correctly.
436 The API and ABI for hwpmc(4) have changed with the addition
437 of sampling support. Please recompile lib/libpmc(3) and
438 usr.sbin/{pmcstat,pmccontrol}.
441 The OpenBSD dhclient was imported in place of the ISC dhclient
442 and the network interface configuration scripts were updated
443 accordingly. If you use DHCP to configure your interfaces, you
444 must now run devd. Also, DNS updating was lost so you will need
445 to find a workaround if you use this feature.
447 The '_dhcp' user was added to support the OpenBSD dhclient. Be
448 sure to run mergemaster -p (like you are supposed to do every time
452 if_bridge was added to the tree. This has changed struct ifnet.
453 Please recompile userland and all network related modules.
456 The n_net of a struct netent was changed to an uint32_t, and
457 1st argument of getnetbyaddr() was changed to an uint32_t, to
458 conform to POSIX-2001. These changes broke an ABI
459 compatibility on 64 bit architecture. With these changes,
460 shlib major of libpcap was bumped. You have to recompile
461 userland programs that use getnetbyaddr(3), getnetbyname(3),
462 getnetent(3) and/or libpcap on 64 bit architecture.
465 Kernel parsing of extra options on '#!' first lines of shell
466 scripts has changed. Lines with multiple options likely will
467 fail after this date. For full details, please see
468 http://people.freebsd.org/~gad/Updating-20050528.txt
471 The packet filter (pf) code has been updated to OpenBSD 3.7
472 Please note the changed anchor syntax and the fact that
473 authpf(8) now needs a mounted fdescfs(5) to function.
476 The NO_MIXED_MODE kernel option has been removed from the i386
477 amd64 platforms as its use has been superceded by the new local
478 APIC timer code. Any kernel config files containing this option
482 The on-disk format of LC_CTYPE files was changed to be machine
483 independent. Please make sure NOT to use NO_CLEAN buildworld
484 when crossing this point. Crossing this point also requires
485 recompile or reinstall of all locale depended packages.
488 The ifi_epoch member of struct if_data has been changed to
489 contain the uptime at which the interface was created or the
490 statistics zeroed rather then the wall clock time because
491 wallclock time may go backwards. This should have no impact
492 unless an snmp implementation is using this value (I know of
496 The acpi_perf and acpi_throttle drivers are now part of the
497 acpi(4) main module. They are no longer built separately.
500 The layout of struct image_params has changed. You have to
501 recompile all compatibility modules (linux, svr4, etc) for use
505 The p4tcc driver has been merged into cpufreq(4). This makes
506 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
507 compile in "device cpufreq" to restore this functionality.
510 The responsibility of recomputing the file system summary of
511 a SoftUpdates-enabled dirty volume has been transferred to the
512 background fsck. A rebuild of fsck(8) utility is recommended
513 if you have updated the kernel.
515 To get the old behavior (recompute file system summary at mount
516 time), you can set vfs.ffs.compute_summary_at_mount=1 before
517 mounting the new volume.
520 The cpufreq import is complete. As part of this, the sysctls for
521 acpi(4) throttling have been removed. The power_profile script
522 has been updated, so you can use performance/economy_cpu_freq in
523 rc.conf(5) to set AC on/offline cpu frequencies.
526 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
527 requires recompiling libnetgraph and userland netgraph utilities.
530 Support for abbreviated forms of a number of ipfw options is
531 now deprecated. Warnings are printed to stderr indicating the
532 correct full form when a match occurs. Some abbreviations may
533 be supported at a later date based on user feedback. To be
534 considered for support, abbreviations must be in use prior to
535 this commit and unlikely to be confused with current key words.
538 By a popular demand, a lot of NOFOO options were renamed
539 to NO_FOO (see bsd.compat.mk for a full list). The old
540 spellings are still supported, but will cause annoying
541 warnings on stderr. Make sure you upgrade properly (see
542 the COMMON ITEMS: section later in this file).
545 Auto-loading of ancillary wlan modules such as wlan_wep has
546 been temporarily disabled; you need to statically configure
547 the modules you need into your kernel or explicitly load them
548 prior to use. Specifically, if you intend to use WEP encryption
549 with an 802.11 device load/configure wlan_wep; if you want to
550 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
551 and wlan_xauth as required.
554 The behaviour of ppp(8) has changed slightly. If lqr is enabled
555 (``enable lqr''), older versions would revert to LCP ECHO mode on
556 negotiation failure. Now, ``enable echo'' is required for this
557 behaviour. The ppp version number has been bumped to 3.4.2 to
561 The wlan support has been updated to split the crypto support
562 into separate modules. For static WEP you must configure the
563 wlan_wep module in your system or build and install the module
564 in place where it can be loaded (the kernel will auto-load
565 the module when a wep key is configured).
568 The ath driver has been updated to split the tx rate control
569 algorithm into a separate module. You need to include either
570 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
573 Support for systems with an 80386 CPU has been removed. Please
574 use FreeBSD 5.x or earlier on systems with an 80386.
577 We have had a hack which would mount the root filesystem
578 R/W if the device were named 'md*'. As part of the vnode
579 work I'm doing I have had to remove this hack. People
580 building systems which use preloaded MD root filesystems
581 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
582 their /etc/rc scripts.
585 FreeBSD 5.3 shipped here.
588 The size of struct tcpcb has changed again due to the removal
589 of RFC1644 T/TCP. You have to recompile userland programs that
590 read kmem for tcp sockets directly (netstat, sockstat, etc.)
593 The size of struct tcpcb has changed. You have to recompile
594 userland programs that read kmem for tcp sockets directly
595 (netstat, sockstat, etc.)
598 RELENG_5 branched here. For older entries, please see updating
599 in the RELENG_5 branch.
605 Avoid using make -j when upgrading. From time to time in the
606 past there have been problems using -j with buildworld and/or
607 installworld. This is especially true when upgrading between
608 "distant" versions (eg one that cross a major release boundary
609 or several minor releases, or when several months have passed
610 on the -current branch).
612 Sometimes, obscure build problems are the result of environment
613 poisoning. This can happen because the make utility reads its
614 environment when searching for values for global variables.
615 To run your build attempts in an "environmental clean room",
616 prefix all make commands with 'env -i '. See the env(1) manual
617 page for more details.
619 When upgrading from one major version to another it is generally
620 best to upgrade to the latest code in the currently installed branch
621 first, then do an upgrade to the new branch. This is the best-tested
622 upgrade path, and has the highest probability of being successful.
623 Please try this approach before reporting problems with a major
628 If you are updating from a prior version of FreeBSD (even one just
629 a few days old), you should follow this procedure. It is the most
630 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
632 make kernel-toolchain
633 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
634 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
636 To test a kernel once
637 ---------------------
638 If you just want to boot a kernel once (because you are not sure
639 if it works, or if you want to boot a known bad kernel to provide
640 debugging information) run
641 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
642 nextboot -k testkernel
644 To just build a kernel when you know that it won't mess you up
645 --------------------------------------------------------------
646 This assumes you are already running a 5.X system. Replace
647 ${arch} with the architecture of your machine (e.g. "i386",
648 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
650 cd src/sys/${arch}/conf
651 config KERNEL_NAME_HERE
652 cd ../compile/KERNEL_NAME_HERE
657 If this fails, go to the "To build a kernel" section.
659 To rebuild everything and install it on the current system.
660 -----------------------------------------------------------
661 # Note: sometimes if you are running current you gotta do more than
662 # is listed here if you are upgrading from a really old current.
664 <make sure you have good level 0 dumps>
666 make kernel KERNCONF=YOUR_KERNEL_HERE
668 <reboot in single user> [3]
676 To cross-install current onto a separate partition
677 --------------------------------------------------
678 # In this approach we use a separate partition to hold
679 # current's root, 'usr', and 'var' directories. A partition
680 # holding "/", "/usr" and "/var" should be about 2GB in
683 <make sure you have good level 0 dumps>
686 make buildkernel KERNCONF=YOUR_KERNEL_HERE
687 <maybe newfs current's root partition>
688 <mount current's root partition on directory ${CURRENT_ROOT}>
689 make installworld DESTDIR=${CURRENT_ROOT}
690 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
691 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
692 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
693 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
694 <reboot into current>
695 <do a "native" rebuild/install as described in the previous section>
696 <maybe install compatibility libraries from src/lib/compat>
700 To upgrade in-place from 5.x-stable to current
701 ----------------------------------------------
702 <make sure you have good level 0 dumps>
704 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
706 <reboot in single user> [3]
713 Make sure that you've read the UPDATING file to understand the
714 tweaks to various things you need. At this point in the life
715 cycle of current, things change often and you are on your own
716 to cope. The defaults can also change, so please read ALL of
717 the UPDATING entries.
719 Also, if you are tracking -current, you must be subscribed to
720 freebsd-current@freebsd.org. Make sure that before you update
721 your sources that you have read and understood all the recent
722 messages there. If in doubt, please track -stable which has
725 [1] If you have third party modules, such as vmware, you
726 should disable them at this point so they don't crash your
729 [3] From the bootblocks, boot -s, and then do
734 adjkerntz -i # if CMOS is wall time
735 Also, when doing a major release upgrade, it is required that
736 you boot into single user mode to do the installworld.
738 [4] Note: This step is non-optional. Failure to do this step
739 can result in a significant reduction in the functionality of the
740 system. Attempting to do it by hand is not recommended and those
741 that pursue this avenue should read this file carefully, as well
742 as the archives of freebsd-current and freebsd-hackers mailing lists
743 for potential gotchas.
745 [5] Usually this step is a noop. However, from time to time
746 you may need to do this if you get unknown user in the following
747 step. It never hurts to do it all the time. You may need to
748 install a new mergemaster (cd src/usr.sbin/mergemaster && make
749 install) after the buildworld before this step if you last updated
750 from current before 20020224 or from -stable before 20020408.
752 [8] In order to have a kernel that can run the 4.x binaries
753 needed to do an installworld, you must include the COMPAT_FREEBSD4
754 option in your kernel. Failure to do so may leave you with a system
755 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
756 is required to run the 5.x binaries on more recent kernels.
758 Make sure that you merge any new devices from GENERIC since the
759 last time you updated your kernel config file.
761 [9] When checking out sources, you must include the -P flag to have
762 cvs prune empty directories.
764 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
765 "?=" instead of the "=" assignment operator, so that buildworld can
766 override the CPUTYPE if it needs to.
768 MAKEOBJDIRPREFIX must be defined in an environment variable, and
769 not on the command line, or in /etc/make.conf. buildworld will
770 warn if it is improperly defined.
773 This file contains a list, in reverse chronological order, of major
774 breakages in tracking -current. Not all things will be listed here,
775 and it only starts on October 16, 2004. Updating files can found in
776 previous releases if your system is older than this.
778 Copyright information:
780 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
782 Redistribution, publication, translation and use, with or without
783 modification, in full or in part, in any form or format of this
784 document are permitted without further permission from the author.
786 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
787 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
788 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
789 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
790 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
791 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
792 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
793 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
794 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
795 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
796 POSSIBILITY OF SUCH DAMAGE.
798 If you find this document useful, and you want to, you may buy the
801 Contact Warner Losh if you have any questions about your use of