1 Updating Information for FreeBSD current users
3 This file is maintained and copyrighted by M. Warner Losh
4 <imp@village.org>. See end of file for further details. For commonly
5 done items, please see the COMMON ITEMS: section later in the file.
7 Items affecting the ports and packages system can be found in
8 /usr/ports/UPDATING. Please read that file before running
11 NOTE TO PEOPLE WHO THINK THAT FreeBSD 8.x IS SLOW:
12 FreeBSD 8.x has many debugging features turned on, in
13 both the kernel and userland. These features attempt to detect
14 incorrect use of system primitives, and encourage loud failure
15 through extra sanity checking and fail stop semantics. They
16 also substantially impact system performance. If you want to
17 do performance measurement, benchmarking, and optimization,
18 you'll want to turn them off. This includes various WITNESS-
19 related kernel options, INVARIANTS, malloc debugging flags
20 in userland, and various verbose features in the kernel. Many
21 developers choose to disable these features on build machines
22 to maximize performance. (To disable malloc debugging, run
23 ln -s aj /etc/malloc.conf.)
26 Support for KSE threading has been removed from the kernel. To
27 run legacy applications linked against KSE libmap.conf may
28 be used. The following libmap.conf may be used to ensure
29 compatibility with any prior release:
31 libpthread.so.1 libthr.so.1
32 libpthread.so.2 libthr.so.2
33 libkse.so.3 libthr.so.3
36 The layout of struct vmspace has changed. This affects libkvm
37 and any executables that link against libkvm and use the
38 kvm_getprocs() function. In particular, but not exclusively,
39 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
40 The effects are minimal, but it's advisable to upgrade world
44 The latest em driver no longer has support in it for the
45 82575 adapter, this is now moved to the igb driver. The
46 split was done to make new features that are incompatible
47 with older hardware easier to do.
50 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
51 likewise the kernel option is now GEOM_LINUX_LVM.
54 The default NFS mount mode has changed from UDP to TCP for
55 increased reliability. If you rely on (insecurely) NFS
56 mounting across a firewall you may need to update your
60 Belatedly note the addition of m_collapse for compacting
64 The fts(3) structures have been changed to use adequate
65 integer types for their members and so to be able to cope
66 with huge file trees. The old fts(3) ABI is preserved
67 through symbol versioning in libc, so third-party binaries
68 using fts(3) should still work, although they will not take
69 advantage of the extended types. At the same time, some
70 third-party software might fail to build after this change
71 due to unportable assumptions made in its source code about
72 fts(3) structure members. Such software should be fixed
73 by its vendor or, in the worst case, in the ports tree.
74 FreeBSD_version 800015 marks this change for the unlikely
75 case that a portable fix is impossible.
78 To upgrade to -current after this date, you must be running
79 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
80 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
83 The ADAPTIVE_GIANT kernel option has been retired because its
84 functionality is the default now.
87 The AT keyboard emulation of sunkbd(4) has been turned on
88 by default. In order to make the special symbols of the Sun
89 keyboards driven by sunkbd(4) work under X these now have
90 to be configured the same way as Sun USB keyboards driven
91 by ukbd(4) (which also does AT keyboard emulation), f.e.:
93 Option "XkbLayout" "us"
94 Option "XkbRules" "xorg"
95 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
98 It has been decided that it is desirable to provide ABI
99 backwards compatibility to the FreeBSD 4/5/6 versions of the
100 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
101 broken with the introduction of PCI domain support (see the
102 20070930 entry). Unfortunately, this required the ABI of
103 PCIOCGETCONF to be broken again in order to be able to
104 provide backwards compatibility to the old version of that
105 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
106 again. As for prominent ports this affects neither pciutils
107 nor xorg-server this time, the hal port needs to be rebuilt
111 The misnamed kthread_create() and friends have been renamed
112 to kproc_create() etc. Many of the callers already
114 I will return kthread_create() and friends in a while
115 with implementations that actually create threads, not procs.
116 Renaming corresponds with version 800002.
122 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
123 WITHOUT_LIBTHR are set.
126 The PCI code has been made aware of PCI domains. This means that
127 the location strings as used by pciconf(8) etc are now in the
128 following format: pci<domain>:<bus>:<device>[:<function>]. It
129 also means that consumers of <sys/pciio.h> potentially need to
130 be recompiled; this includes the hal and xorg-server ports.
133 The caching daemon (cached) was renamed to nscd. nscd.conf
134 configuration file should be used instead of cached.conf and
135 nscd_enable, nscd_pidfile and nscd_flags options should be used
136 instead of cached_enable, cached_pidfile and cached_flags in
140 The getfacl(1) utility now prints owning user and group name
141 instead of owning uid and gid in the three line comment header.
142 This is the same behavior as getfacl(1) on Solaris and Linux.
145 The new IPsec code is now compiled in using the IPSEC option. The
146 IPSEC option now requires "device crypto" be defined in your kernel
147 configuration. The FAST_IPSEC kernel option is now deprecated.
150 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
151 note the changed syntax - keep state is now on by default. Also
152 note the fact that ftp-proxy(8) has been changed from bottom up and
153 has been moved from libexec to usr/sbin. Changes in the ALTQ
154 handling also affect users of IPFW's ALTQ capabilities.
157 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
158 only IPsec supported by FreeBSD. The new IPsec stack
159 supports both IPv4 and IPv6. The kernel option will change
160 after the code changes have settled in. For now the kernel
161 option IPSEC is deprecated and FAST_IPSEC is the only option, that
162 will change after some settling time.
165 The wicontrol(8) utility has been removed from the base system. wi(4)
166 cards should be configured using ifconfig(8), see the man page for more
170 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
171 instead of the nve(4) driver. Please update your configuration
175 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
176 database if it is missing or older than the aliases file. If
177 desired, set the new rc.conf option sendmail_rebuild_aliases
178 to "YES" to restore that functionality.
181 The IPv4 multicast socket code has been considerably modified, and
182 moved to the file sys/netinet/in_mcast.c. Initial support for the
183 RFC 3678 Source-Specific Multicast Socket API has been added to
184 the IPv4 network stack.
186 Strict multicast and broadcast reception is now the default for
187 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
188 has now been removed.
190 The RFC 1724 hack for interface selection has been removed; the use
191 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
192 been added to replace it. Consumers such as routed will soon be
193 updated to reflect this.
195 These changes affect users who are running routed(8) or rdisc(8)
196 from the FreeBSD base system on point-to-point or unnumbered
200 The net80211 layer has changed significantly and all wireless
201 drivers that depend on it need to be recompiled. Further these
202 changes require that any program that interacts with the wireless
203 support in the kernel be recompiled; this includes: ifconfig,
204 wpa_supplicant, hostapd, and wlanstats. Users must also, for
205 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
206 if they use modules for wireless support. These modules implement
207 scanning support for station and ap modes, respectively. Failure
208 to load the appropriate module before marking a wireless interface
209 up will result in a message to the console and the device not
213 The pam_nologin(8) module ceases to provide an authentication
214 function and starts providing an account management function.
215 Consequent changes to /etc/pam.d should be brought in using
216 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
217 need manual editing as follows. Locate this line (or similar):
219 auth required pam_nologin.so no_warn
221 and change it according to this example:
223 account required pam_nologin.so no_warn
225 That is, the first word needs to be changed from "auth" to
226 "account". The new line can be moved to the account section
227 within the file for clarity. Not updating pam.conf(5) files
228 will result in nologin(5) ignored by the respective services.
231 The ether_ioctl() function has been synchronized with ioctl(2)
232 and ifnet.if_ioctl. Due to that, the size of one of its arguments
233 has changed on 64-bit architectures. All kernel modules using
234 ether_ioctl() need to be rebuilt on such architectures.
237 Improved INCLUDE_CONFIG_FILE support has been introduced to the
238 config(8) utility. In order to take advantage of this new
239 functionality, you are expected to recompile and install
240 src/usr.sbin/config. If you don't rebuild config(8), and your
241 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
242 build will be broken because of a missing "kernconfstring"
246 Symbol versioning is enabled by default. To disable it, use
247 option WITHOUT_SYMVER. It is not advisable to attempt to
248 disable symbol versioning once it is enabled; your installworld
249 will break because a symbol version-less libc will get installed
250 before the install tools. As a result, the old install tools,
251 which previously had symbol dependencies to FBSD_1.0, will fail
252 because the freshly installed libc will not have them.
254 The default threading library (providing "libpthread") has been
255 changed to libthr. If you wish to have libkse as your default,
256 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
259 The ABI breakage in sendmail(8)'s libmilter has been repaired
260 so it is no longer necessary to recompile mail filters (aka,
261 milters). If you recompiled mail filters after the 20070408
262 note, it is not necessary to recompile them again.
265 The new trunk(4) driver has been renamed to lagg(4) as it better
266 reflects its purpose. ifconfig will need to be recompiled.
269 sendmail(8) has been updated to version 8.14.1. Mail filters
270 (aka, milters) compiled against the libmilter included in the
271 base operating system should be recompiled.
274 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
275 In order to use them one must agree to the respective LICENSE in
276 share/doc/legal and define legal.intel_<name>.license_ack=1 via
277 loader.conf(5) or kenv(1). Make sure to deinstall the now
278 deprecated modules from the respective firmware ports.
281 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
282 were removed from FreeBSD's libc. These originally came from INRIA
283 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
284 deprecated in previous releases.
285 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
286 replace it as a more portable (and re-entrant) API.
289 To support interrupt filtering a modification to the newbus API
290 has occurred, ABI was broken and __FreeBSD_version was bumped
291 to 700031. Please make sure that your kernel and modules are in
293 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
296 The IPv6 multicast forwarding code may now be loaded into GENERIC
297 kernels by loading the ip_mroute.ko module. This is built into the
298 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
299 set; see src.conf(5) for more information.
302 The output of netstat -r has changed. Without -n, we now only
303 print a "network name" without the prefix length if the network
304 address and mask exactly match a Class A/B/C network, and an entry
305 exists in the nsswitch "networks" map.
306 With -n, we print the full unabbreviated CIDR network prefix in
307 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
308 This change is in preparation for changes such as equal-cost
309 multipath, and to more generally assist operational deployment
310 of FreeBSD as a modern IPv4 router.
313 PIM has been turned on by default in the IPv4 multicast
314 routing code. The kernel option 'PIM' has now been removed.
315 PIM is now built by default if option 'MROUTING' is specified.
316 It may now be loaded into GENERIC kernels by loading the
320 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
321 has been removed. Its functionality may be achieved by explicitly
322 configuring gif(4) interfaces and using the 'phyint' keyword in
324 XORP does not support source-routed IPv4 multicast tunnels nor the
325 integrated IPIP tunneling, therefore it is not affected by this
326 change. The __FreeBSD_version macro has been bumped to 700030.
329 Support for PCI Message Signalled Interrupts has been
330 re-enabled in the bge driver, only for those chips which are
331 believed to support it properly. If there are any problems,
332 MSI can be disabled completely by setting the
333 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
337 Support for PCI Message Signalled Interrupts has been
338 disabled again in the bge driver. Many revisions of the
339 hardware fail to support it properly. Support can be
340 re-enabled by removing the #define of BGE_DISABLE_MSI in
341 "src/sys/dev/bge/if_bge.c".
344 Support for PCI Message Signalled Interrupts has been added
345 to the bge driver. If there are any problems, MSI can be
346 disabled completely by setting the 'hw.pci.enable_msi' and
347 'hw.pci.enable_msix' tunables to 0 in the loader.
350 The removal of several facets of the experimental Threading
351 system from the kernel means that the proc and thread structures
352 have changed quite a bit. I suggest all kernel modules that might
353 reference these structures be recompiled.. Especially the
357 Sound infrastructure has been updated with various fixes and
358 improvements. Most of the changes are pretty much transparent,
359 with exceptions of followings:
360 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
361 moved to their own dev sysctl nodes, for example:
362 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
363 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
364 own chardev in the form of "dsp%d.<function>%d", where <function>
365 is p = playback, r = record and v = virtual, respectively. Users
366 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
367 This does not affect those who are using "/dev/dsp".
370 The following binaries have been disconnected from the build:
371 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
372 and mount_std. The functionality of these programs has been
373 moved into the mount program. For example, to mount a devfs
374 filesystem, instead of using mount_devfs, use: "mount -t devfs".
375 This does not affect entries in /etc/fstab, since entries in
376 /etc/fstab are always processed with "mount -t fstype".
379 Support for PCI Message Signalled Interrupts on i386 and amd64
380 has been added to the kernel and various drivers will soon be
381 updated to use MSI when it is available. If there are any problems,
382 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
383 and 'hw.pci.enable_msix' tunables to 0 in the loader.
386 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
387 The lockmgr object layout has been changed as a result of having
388 a lock_object embedded in it. As a consequence all file system
389 kernel modules must be re-compiled. The mutex profiling man page
390 has not yet been updated to reflect this change.
393 KSE in the kernel has now been made optional and turned on by
394 default. Use 'nooption KSE' in your kernel config to turn it
395 off. All kernel modules *must* be recompiled after this change.
396 There-after, modules from a KSE kernel should be compatible with
397 modules from a NOKSE kernel due to the temporary padding fields
398 added to 'struct proc'.
401 mrouted and its utilities have been removed from the base system.
404 Some ioctl(2) command codes have changed. Full backward ABI
405 compatibility is provided if the "options COMPAT_FREEBSD6" is
406 present in the kernel configuration file. Make sure to add
407 this option to your kernel config file, or recompile X.Org
408 and the rest of ports; otherwise they may refuse to work.
411 tcpslice has been removed from the base system.
414 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
415 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
416 systat needs to be rebuilt.
419 libpcap updated to v0.9.4 and tcpdump to v3.9.4
422 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
423 for IPFIREWALL_FORWARD is now as it was before when it was first
424 committed and for years after. The behaviour is now ON.
427 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
428 Now it can decrypt files created from different architectures.
429 Unfortunately, it is no longer able to decrypt a cipher text
430 generated with an older version on 64 bit architectures.
431 If you have such a file, you need old utility to decrypt it.
434 The interface version of the i4b kernel part has changed. So
435 after updating the kernel sources and compiling a new kernel,
436 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
437 be rebuilt, and vice versa.
440 The XBOX kernel now defaults to the nfe(4) driver instead of
441 the nve(4) driver. Please update your configuration
445 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
446 PCnet family of NICs has been removed. The new le(4) driver serves
447 as an equivalent but cross-platform replacement with the pcn(4)
448 driver still providing performance-optimized support for the subset
449 of AMD Am79C971 PCnet-FAST and greater chips as before.
452 The machdep.* sysctls and the adjkerntz utility have been
453 modified a bit. The new adjkerntz utility uses the new
454 sysctl names and sysctlbyname() calls, so it may be impossible
455 to run an old /sbin/adjkerntz utility in single-user mode
456 with a new kernel. Replace the `adjkerntz -i' step before
457 `make installworld' with:
459 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
461 and proceed as usual with the rest of the installworld-stage
462 steps. Otherwise, you risk installing binaries with their
463 timestamp set several hours in the future, especially if
464 you are running with local time set to GMT+X hours.
467 The ip6fw utility has been removed. The behavior provided by
468 ip6fw has been in ipfw2 for a good while and the rc.d scripts
469 have been updated to deal with it. There are some rules that
470 might not migrate cleanly. Use rc.firewall6 as a template to
474 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
475 attachments have been removed. Make sure to configure scc(4)
476 on sparc64. Note also that by default puc(4) will use uart(4)
477 and not sio(4) for serial ports because interrupt handling has
478 been optimized for multi-port serial cards and only uart(4)
479 implements the interface to support it.
482 The scc(4) driver replaces puc(4) for Serial Communications
483 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
484 Z8530. On sparc64, it is advised to add scc(4) to the kernel
485 configuration to make sure that the serial ports remain
489 Most world/kernel related NO_* build options changed names.
490 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
491 after FreeBSD ports) and should be set in /etc/src.conf
492 (the src.conf(5) manpage is provided). Full backwards
493 compatibility is maintained for the time being though it's
494 highly recommended to start moving old options out of the
495 system-wide /etc/make.conf file into the new /etc/src.conf
496 while also properly renaming them. More conversions will
497 likely follow. Posting to current@:
499 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
502 The NETSMBCRYPTO kernel option has been retired because its
503 functionality is always included in NETSMB and smbfs.ko now.
506 The TDFX_LINUX kernel option was retired and replaced by the
507 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
508 kernel module. Loading it alone should suffice to get 3dfx support
509 for Linux apps because it will pull in 3dfx.ko and linux.ko through
513 The 'audit' group was added to support the new auditing functionality
514 in the base system. Be sure to follow the directions for updating,
515 including the requirement to run mergemaster -p.
518 The kernel ABI to file system modules was changed on i386.
519 Please make sure that your kernel and modules are in sync.
522 This actually occured some time ago, but installing the kernel
523 now also installs a bunch of symbol files for the kernel modules.
524 This increases the size of /boot/kernel to about 67Mbytes. You
525 will need twice this if you will eventually back this up to kernel.old
526 on your next install.
527 If you have a shortage of room in your root partition, you should add
528 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
529 to your /etc/make.conf.
532 libc's malloc implementation has been replaced. This change has the
533 potential to uncover application bugs that previously went unnoticed.
534 See the malloc(3) manual page for more details.
537 The generic netgraph(4) cookie has been changed. If you upgrade
538 kernel passing this point, you also need to upgrade userland
539 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
542 si(4)'s device files now contain the unit number.
543 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
546 The kernel ABI was mostly destroyed due to a change in the size
547 of struct lock_object which is nested in other structures such
548 as mutexes which are nested in all sorts of other structures.
549 Make sure your kernel and modules are in sync.
552 The page coloring algorithm in the VM subsystem was converted
553 from tuning with kernel options to autotuning. Please remove
554 any PQ_* option except PQ_NOOPT from your kernel config.
557 The net80211-related tools in the tools/tools/ath directory
558 have been moved to tools/tools/net80211 and renamed with a
559 "wlan" prefix. Scripts that use them should be adjusted
563 Scripts in the local_startup directories (as defined in
564 /etc/defaults/rc.conf) that have the new rc.d semantics will
565 now be run as part of the base system rcorder. If there are
566 errors or problems with one of these local scripts, it could
567 cause boot problems. If you encounter such problems, boot in
568 single user mode, remove that script from the */rc.d directory.
569 Please report the problem to the port's maintainer, and the
570 freebsd-ports@freebsd.org mailing list.
573 The nodev mount option was deprecated in RELENG_6 (where it
574 was a no-op), and is now unsupported. If you have nodev or dev listed
575 in /etc/fstab, remove it, otherwise it will result in a mount error.
578 ABI between ipfw(4) and ipfw(8) has been changed. You need
579 to rebuild ipfw(8) when rebuilding kernel.
582 rp(4)'s device files now contain the unit number.
583 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
586 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
587 Its /etc/rc.conf.d configuration file has been `ppp' from
588 the beginning, and hence there is no need to touch it.
591 Now most modules get their build-time options from the kernel
592 configuration file. A few modules still have fixed options
593 due to their non-conformant implementation, but they will be
594 corrected eventually. You may need to review the options of
595 the modules in use, explicitly specify the non-default options
596 in the kernel configuration file, and rebuild the kernel and
600 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
601 to turn polling(4) on your interfaces.
604 The old bridge(4) implementation was retired. The new
605 if_bridge(4) serves as a full functional replacement.
608 The ai_addrlen of a struct addrinfo was changed to a socklen_t
609 to conform to POSIX-2001. This change broke an ABI
610 compatibility on 64 bit architecture. You have to recompile
611 userland programs that use getaddrinfo(3) on 64 bit
615 RELENG_6 branched here.
618 The pccard_ifconfig rc.conf variable has been removed and a new
619 variable, ifconfig_DEFAULT has been introduced. Unlike
620 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
621 do not have ifconfig_ifn entries rather than just those in
622 removable_interfaces.
625 Some previous versions of PAM have permitted the use of
626 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
627 to third party PAM modules in /usr/local/lib. A change has been
628 made to require the use of absolute paths in order to avoid
629 ambiguity and dependence on library path configuration, which may
630 affect existing configurations.
633 Major changes to network interface API. All drivers must be
634 recompiled. Drivers not in the base system will need to be
635 updated to the new APIs.
638 Changes were made to kinfo_proc in sys/user.h. Please recompile
639 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
640 will not behave correctly.
642 The API and ABI for hwpmc(4) have changed with the addition
643 of sampling support. Please recompile lib/libpmc(3) and
644 usr.sbin/{pmcstat,pmccontrol}.
647 The OpenBSD dhclient was imported in place of the ISC dhclient
648 and the network interface configuration scripts were updated
649 accordingly. If you use DHCP to configure your interfaces, you
650 must now run devd. Also, DNS updating was lost so you will need
651 to find a workaround if you use this feature.
653 The '_dhcp' user was added to support the OpenBSD dhclient. Be
654 sure to run mergemaster -p (like you are supposed to do every time
658 if_bridge was added to the tree. This has changed struct ifnet.
659 Please recompile userland and all network related modules.
662 The n_net of a struct netent was changed to an uint32_t, and
663 1st argument of getnetbyaddr() was changed to an uint32_t, to
664 conform to POSIX-2001. These changes broke an ABI
665 compatibility on 64 bit architecture. With these changes,
666 shlib major of libpcap was bumped. You have to recompile
667 userland programs that use getnetbyaddr(3), getnetbyname(3),
668 getnetent(3) and/or libpcap on 64 bit architecture.
671 Kernel parsing of extra options on '#!' first lines of shell
672 scripts has changed. Lines with multiple options likely will
673 fail after this date. For full details, please see
674 http://people.freebsd.org/~gad/Updating-20050528.txt
677 The packet filter (pf) code has been updated to OpenBSD 3.7
678 Please note the changed anchor syntax and the fact that
679 authpf(8) now needs a mounted fdescfs(5) to function.
682 The NO_MIXED_MODE kernel option has been removed from the i386
683 amd64 platforms as its use has been superceded by the new local
684 APIC timer code. Any kernel config files containing this option
688 The on-disk format of LC_CTYPE files was changed to be machine
689 independent. Please make sure NOT to use NO_CLEAN buildworld
690 when crossing this point. Crossing this point also requires
691 recompile or reinstall of all locale depended packages.
694 The ifi_epoch member of struct if_data has been changed to
695 contain the uptime at which the interface was created or the
696 statistics zeroed rather then the wall clock time because
697 wallclock time may go backwards. This should have no impact
698 unless an snmp implementation is using this value (I know of
702 The acpi_perf and acpi_throttle drivers are now part of the
703 acpi(4) main module. They are no longer built separately.
706 The layout of struct image_params has changed. You have to
707 recompile all compatibility modules (linux, svr4, etc) for use
711 The p4tcc driver has been merged into cpufreq(4). This makes
712 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
713 compile in "device cpufreq" to restore this functionality.
716 The responsibility of recomputing the file system summary of
717 a SoftUpdates-enabled dirty volume has been transferred to the
718 background fsck. A rebuild of fsck(8) utility is recommended
719 if you have updated the kernel.
721 To get the old behavior (recompute file system summary at mount
722 time), you can set vfs.ffs.compute_summary_at_mount=1 before
723 mounting the new volume.
726 The cpufreq import is complete. As part of this, the sysctls for
727 acpi(4) throttling have been removed. The power_profile script
728 has been updated, so you can use performance/economy_cpu_freq in
729 rc.conf(5) to set AC on/offline cpu frequencies.
732 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
733 requires recompiling libnetgraph and userland netgraph utilities.
736 Support for abbreviated forms of a number of ipfw options is
737 now deprecated. Warnings are printed to stderr indicating the
738 correct full form when a match occurs. Some abbreviations may
739 be supported at a later date based on user feedback. To be
740 considered for support, abbreviations must be in use prior to
741 this commit and unlikely to be confused with current key words.
744 By a popular demand, a lot of NOFOO options were renamed
745 to NO_FOO (see bsd.compat.mk for a full list). The old
746 spellings are still supported, but will cause annoying
747 warnings on stderr. Make sure you upgrade properly (see
748 the COMMON ITEMS: section later in this file).
751 Auto-loading of ancillary wlan modules such as wlan_wep has
752 been temporarily disabled; you need to statically configure
753 the modules you need into your kernel or explicitly load them
754 prior to use. Specifically, if you intend to use WEP encryption
755 with an 802.11 device load/configure wlan_wep; if you want to
756 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
757 and wlan_xauth as required.
760 The behaviour of ppp(8) has changed slightly. If lqr is enabled
761 (``enable lqr''), older versions would revert to LCP ECHO mode on
762 negotiation failure. Now, ``enable echo'' is required for this
763 behaviour. The ppp version number has been bumped to 3.4.2 to
767 The wlan support has been updated to split the crypto support
768 into separate modules. For static WEP you must configure the
769 wlan_wep module in your system or build and install the module
770 in place where it can be loaded (the kernel will auto-load
771 the module when a wep key is configured).
774 The ath driver has been updated to split the tx rate control
775 algorithm into a separate module. You need to include either
776 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
779 Support for systems with an 80386 CPU has been removed. Please
780 use FreeBSD 5.x or earlier on systems with an 80386.
783 We have had a hack which would mount the root filesystem
784 R/W if the device were named 'md*'. As part of the vnode
785 work I'm doing I have had to remove this hack. People
786 building systems which use preloaded MD root filesystems
787 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
788 their /etc/rc scripts.
791 FreeBSD 5.3 shipped here.
794 The size of struct tcpcb has changed again due to the removal
795 of RFC1644 T/TCP. You have to recompile userland programs that
796 read kmem for tcp sockets directly (netstat, sockstat, etc.)
799 The size of struct tcpcb has changed. You have to recompile
800 userland programs that read kmem for tcp sockets directly
801 (netstat, sockstat, etc.)
804 RELENG_5 branched here. For older entries, please see updating
805 in the RELENG_5 branch.
811 Avoid using make -j when upgrading. From time to time in the
812 past there have been problems using -j with buildworld and/or
813 installworld. This is especially true when upgrading between
814 "distant" versions (eg one that cross a major release boundary
815 or several minor releases, or when several months have passed
816 on the -current branch).
818 Sometimes, obscure build problems are the result of environment
819 poisoning. This can happen because the make utility reads its
820 environment when searching for values for global variables.
821 To run your build attempts in an "environmental clean room",
822 prefix all make commands with 'env -i '. See the env(1) manual
823 page for more details.
825 When upgrading from one major version to another it is generally
826 best to upgrade to the latest code in the currently installed branch
827 first, then do an upgrade to the new branch. This is the best-tested
828 upgrade path, and has the highest probability of being successful.
829 Please try this approach before reporting problems with a major
834 If you are updating from a prior version of FreeBSD (even one just
835 a few days old), you should follow this procedure. It is the most
836 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
838 make kernel-toolchain
839 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
840 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
842 To test a kernel once
843 ---------------------
844 If you just want to boot a kernel once (because you are not sure
845 if it works, or if you want to boot a known bad kernel to provide
846 debugging information) run
847 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
848 nextboot -k testkernel
850 To just build a kernel when you know that it won't mess you up
851 --------------------------------------------------------------
852 This assumes you are already running a 5.X system. Replace
853 ${arch} with the architecture of your machine (e.g. "i386",
854 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
856 cd src/sys/${arch}/conf
857 config KERNEL_NAME_HERE
858 cd ../compile/KERNEL_NAME_HERE
863 If this fails, go to the "To build a kernel" section.
865 To rebuild everything and install it on the current system.
866 -----------------------------------------------------------
867 # Note: sometimes if you are running current you gotta do more than
868 # is listed here if you are upgrading from a really old current.
870 <make sure you have good level 0 dumps>
872 make kernel KERNCONF=YOUR_KERNEL_HERE
874 <reboot in single user> [3]
882 To cross-install current onto a separate partition
883 --------------------------------------------------
884 # In this approach we use a separate partition to hold
885 # current's root, 'usr', and 'var' directories. A partition
886 # holding "/", "/usr" and "/var" should be about 2GB in
889 <make sure you have good level 0 dumps>
892 make buildkernel KERNCONF=YOUR_KERNEL_HERE
893 <maybe newfs current's root partition>
894 <mount current's root partition on directory ${CURRENT_ROOT}>
895 make installworld DESTDIR=${CURRENT_ROOT}
896 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
897 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
898 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
899 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
900 <reboot into current>
901 <do a "native" rebuild/install as described in the previous section>
902 <maybe install compatibility libraries from src/lib/compat>
906 To upgrade in-place from 5.x-stable to current
907 ----------------------------------------------
908 <make sure you have good level 0 dumps>
910 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
912 <reboot in single user> [3]
919 Make sure that you've read the UPDATING file to understand the
920 tweaks to various things you need. At this point in the life
921 cycle of current, things change often and you are on your own
922 to cope. The defaults can also change, so please read ALL of
923 the UPDATING entries.
925 Also, if you are tracking -current, you must be subscribed to
926 freebsd-current@freebsd.org. Make sure that before you update
927 your sources that you have read and understood all the recent
928 messages there. If in doubt, please track -stable which has
931 [1] If you have third party modules, such as vmware, you
932 should disable them at this point so they don't crash your
935 [3] From the bootblocks, boot -s, and then do
940 adjkerntz -i # if CMOS is wall time
941 Also, when doing a major release upgrade, it is required that
942 you boot into single user mode to do the installworld.
944 [4] Note: This step is non-optional. Failure to do this step
945 can result in a significant reduction in the functionality of the
946 system. Attempting to do it by hand is not recommended and those
947 that pursue this avenue should read this file carefully, as well
948 as the archives of freebsd-current and freebsd-hackers mailing lists
949 for potential gotchas.
951 [5] Usually this step is a noop. However, from time to time
952 you may need to do this if you get unknown user in the following
953 step. It never hurts to do it all the time. You may need to
954 install a new mergemaster (cd src/usr.sbin/mergemaster && make
955 install) after the buildworld before this step if you last updated
956 from current before 20020224 or from -stable before 20020408.
958 [8] In order to have a kernel that can run the 4.x binaries
959 needed to do an installworld, you must include the COMPAT_FREEBSD4
960 option in your kernel. Failure to do so may leave you with a system
961 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
962 is required to run the 5.x binaries on more recent kernels.
964 Make sure that you merge any new devices from GENERIC since the
965 last time you updated your kernel config file.
967 [9] When checking out sources, you must include the -P flag to have
968 cvs prune empty directories.
970 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
971 "?=" instead of the "=" assignment operator, so that buildworld can
972 override the CPUTYPE if it needs to.
974 MAKEOBJDIRPREFIX must be defined in an environment variable, and
975 not on the command line, or in /etc/make.conf. buildworld will
976 warn if it is improperly defined.
979 This file contains a list, in reverse chronological order, of major
980 breakages in tracking -current. Not all things will be listed here,
981 and it only starts on October 16, 2004. Updating files can found in
982 previous releases if your system is older than this.
984 Copyright information:
986 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
988 Redistribution, publication, translation and use, with or without
989 modification, in full or in part, in any form or format of this
990 document are permitted without further permission from the author.
992 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
993 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
994 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
995 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
996 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
997 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
998 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
999 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1000 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1001 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1002 POSSIBILITY OF SUCH DAMAGE.
1004 If you find this document useful, and you want to, you may buy the
1007 Contact Warner Losh if you have any questions about your use of