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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
9 portupgrade.
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.)
25 20080820:
26 The TTY subsystem of the kernel has been replaced by a new
27 implementation, which provides better scalability and an
28 improved driver model. Most common drivers have been migrated to
29 the new TTY subsystem, while others have not. The following
30 drivers have not yet been ported to the new TTY layer:
32 PCI/ISA:
33 cy, digi, rc, rp, si, sio
35 USB:
36 ubser, ucycom, ufoma
38 Line disciplines:
39 ng_h4, ng_tty, ppp, sl, snp
41 Adding these drivers to your kernel configuration file shall
42 cause compilation to fail.
44 20080818:
45 ntpd has been upgraded to 4.2.4p5.
47 20080801:
48 OpenSSH has been upgraded to 5.1p1.
50 For many years, FreeBSD's version of OpenSSH preferred DSA
51 over RSA for host and user authentication keys. With this
52 upgrade, we've switched to the vendor's default of RSA over
53 DSA. This may cause upgraded clients to warn about unknown
54 host keys even for previously known hosts. Users should
55 follow the usual procedure for verifying host keys before
56 accepting the RSA key.
58 This can be circumvented by setting the "HostKeyAlgorithms"
59 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
60 command line.
62 20080713:
63 The sio(4) driver has been removed from the i386 and amd64
64 kernel configuration files. This means uart(4) is now the
65 default serial port driver on those platforms as well.
67 To prevent collisions with the sio(4) driver, the uart(4) driver
68 uses different names for its device nodes. This means the
69 onboard serial port will now most likely be called "ttyu0"
70 instead of "ttyd0". You may need to reconfigure applications to
71 use the new device names.
73 When using the serial port as a boot console, be sure to update
74 /boot/device.hints and /etc/ttys before booting the new kernel.
75 If you forget to do so, you can still manually specify the hints
76 at the loader prompt:
78 set hint.uart.0.at="isa"
79 set hint.uart.0.port="0x3F8"
80 set hint.uart.0.flags="0x10"
81 set hint.uart.0.irq="4"
82 boot -s
84 20080609:
85 The gpt(8) utility has been removed. Use gpart(8) to partition
86 disks instead.
88 20080603:
89 The version that Linuxulator emulates was changed from 2.4.2
90 to 2.6.16. If you experience any problems with Linux binaries
91 please try to set sysctl compat.linux.osrelease to 2.4.2 and
92 if it fixes the problem contact emulation mailing list.
94 20080525:
95 ISDN4BSD (I4B) was removed from the src tree. You may need to
96 update a your kernel configuration and remove relevant entries.
98 20080509:
99 I have checked in code to support multiple routing tables.
100 See the man pages setfib(1) and setfib(2).
101 This is a hopefully backwards compatible version,
102 but to make use of it you need to compile your kernel
103 with options ROUTETABLES=2 (or more up to 16).
105 20080420:
106 The 802.11 wireless support was redone to enable multi-bss
107 operation on devices that are capable. The underlying device
108 is no longer used directly but instead wlanX devices are
109 cloned with ifconfig. This requires changes to rc.conf files.
110 For example, change:
111 ifconfig_ath0="WPA DHCP"
112 to
113 wlans_ath0=wlan0
114 ifconfig_wlan0="WPA DHCP"
115 see rc.conf(5) for more details. In addition, mergemaster of
116 /etc/rc.d is highly recommended. Simultaneous update of userland
117 and kernel wouldn't hurt either.
119 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
120 modules were merged into the base wlan module. All references
121 to these modules (e.g. in kernel config files) must be removed.
123 20080408:
124 psm(4) has gained write(2) support in native operation level.
125 Arbitrary commands can be written to /dev/psm%d and status can
126 be read back from it. Therefore, an application is responsible
127 for status validation and error recovery. It is a no-op in
128 other operation levels.
130 20080312:
131 Support for KSE threading has been removed from the kernel. To
132 run legacy applications linked against KSE libmap.conf may
133 be used. The following libmap.conf may be used to ensure
134 compatibility with any prior release:
136 libpthread.so.1 libthr.so.1
137 libpthread.so.2 libthr.so.2
138 libkse.so.3 libthr.so.3
140 20080301:
141 The layout of struct vmspace has changed. This affects libkvm
142 and any executables that link against libkvm and use the
143 kvm_getprocs() function. In particular, but not exclusively,
144 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
145 The effects are minimal, but it's advisable to upgrade world
146 nonetheless.
148 20080229:
149 The latest em driver no longer has support in it for the
150 82575 adapter, this is now moved to the igb driver. The
151 split was done to make new features that are incompatible
152 with older hardware easier to do.
154 20080220:
155 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
156 likewise the kernel option is now GEOM_LINUX_LVM.
158 20080211:
159 The default NFS mount mode has changed from UDP to TCP for
160 increased reliability. If you rely on (insecurely) NFS
161 mounting across a firewall you may need to update your
162 firewall rules.
164 20080208:
165 Belatedly note the addition of m_collapse for compacting
166 mbuf chains.
168 20080126:
169 The fts(3) structures have been changed to use adequate
170 integer types for their members and so to be able to cope
171 with huge file trees. The old fts(3) ABI is preserved
172 through symbol versioning in libc, so third-party binaries
173 using fts(3) should still work, although they will not take
174 advantage of the extended types. At the same time, some
175 third-party software might fail to build after this change
176 due to unportable assumptions made in its source code about
177 fts(3) structure members. Such software should be fixed
178 by its vendor or, in the worst case, in the ports tree.
179 FreeBSD_version 800015 marks this change for the unlikely
180 case that a portable fix is impossible.
182 20080123:
183 To upgrade to -current after this date, you must be running
184 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
185 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
187 20071128:
188 The ADAPTIVE_GIANT kernel option has been retired because its
189 functionality is the default now.
191 20071118:
192 The AT keyboard emulation of sunkbd(4) has been turned on
193 by default. In order to make the special symbols of the Sun
194 keyboards driven by sunkbd(4) work under X these now have
195 to be configured the same way as Sun USB keyboards driven
196 by ukbd(4) (which also does AT keyboard emulation), f.e.:
198 Option "XkbLayout" "us"
199 Option "XkbRules" "xorg"
200 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
202 20071024:
203 It has been decided that it is desirable to provide ABI
204 backwards compatibility to the FreeBSD 4/5/6 versions of the
205 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
206 broken with the introduction of PCI domain support (see the
207 20070930 entry). Unfortunately, this required the ABI of
208 PCIOCGETCONF to be broken again in order to be able to
209 provide backwards compatibility to the old version of that
210 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
211 again. As for prominent ports this affects neither pciutils
212 nor xorg-server this time, the hal port needs to be rebuilt
213 however.
215 20071020:
216 The misnamed kthread_create() and friends have been renamed
217 to kproc_create() etc. Many of the callers already
218 used kproc_start()..
219 I will return kthread_create() and friends in a while
220 with implementations that actually create threads, not procs.
221 Renaming corresponds with version 800002.
223 20071010:
224 RELENG_7 branched.
226 20071009:
227 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
228 WITHOUT_LIBTHR are set.
230 20070930:
231 The PCI code has been made aware of PCI domains. This means that
232 the location strings as used by pciconf(8) etc are now in the
233 following format: pci<domain>:<bus>:<device>[:<function>]. It
234 also means that consumers of <sys/pciio.h> potentially need to
235 be recompiled; this includes the hal and xorg-server ports.
237 20070928:
238 The caching daemon (cached) was renamed to nscd. nscd.conf
239 configuration file should be used instead of cached.conf and
240 nscd_enable, nscd_pidfile and nscd_flags options should be used
241 instead of cached_enable, cached_pidfile and cached_flags in
242 rc.conf.
244 20070921:
245 The getfacl(1) utility now prints owning user and group name
246 instead of owning uid and gid in the three line comment header.
247 This is the same behavior as getfacl(1) on Solaris and Linux.
249 20070704:
250 The new IPsec code is now compiled in using the IPSEC option. The
251 IPSEC option now requires "device crypto" be defined in your kernel
252 configuration. The FAST_IPSEC kernel option is now deprecated.
254 20070702:
255 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
256 note the changed syntax - keep state is now on by default. Also
257 note the fact that ftp-proxy(8) has been changed from bottom up and
258 has been moved from libexec to usr/sbin. Changes in the ALTQ
259 handling also affect users of IPFW's ALTQ capabilities.
261 20070701:
262 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
263 only IPsec supported by FreeBSD. The new IPsec stack
264 supports both IPv4 and IPv6. The kernel option will change
265 after the code changes have settled in. For now the kernel
266 option IPSEC is deprecated and FAST_IPSEC is the only option, that
267 will change after some settling time.
269 20070701:
270 The wicontrol(8) utility has been removed from the base system. wi(4)
271 cards should be configured using ifconfig(8), see the man page for more
272 information.
274 20070612:
275 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
276 instead of the nve(4) driver. Please update your configuration
277 accordingly.
279 20070612:
280 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
281 database if it is missing or older than the aliases file. If
282 desired, set the new rc.conf option sendmail_rebuild_aliases
283 to "YES" to restore that functionality.
285 20070612:
286 The IPv4 multicast socket code has been considerably modified, and
287 moved to the file sys/netinet/in_mcast.c. Initial support for the
288 RFC 3678 Source-Specific Multicast Socket API has been added to
289 the IPv4 network stack.
291 Strict multicast and broadcast reception is now the default for
292 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
293 has now been removed.
295 The RFC 1724 hack for interface selection has been removed; the use
296 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
297 been added to replace it. Consumers such as routed will soon be
298 updated to reflect this.
300 These changes affect users who are running routed(8) or rdisc(8)
301 from the FreeBSD base system on point-to-point or unnumbered
302 interfaces.
304 20070610:
305 The net80211 layer has changed significantly and all wireless
306 drivers that depend on it need to be recompiled. Further these
307 changes require that any program that interacts with the wireless
308 support in the kernel be recompiled; this includes: ifconfig,
309 wpa_supplicant, hostapd, and wlanstats. Users must also, for
310 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
311 if they use modules for wireless support. These modules implement
312 scanning support for station and ap modes, respectively. Failure
313 to load the appropriate module before marking a wireless interface
314 up will result in a message to the console and the device not
315 operating properly.
317 20070610:
318 The pam_nologin(8) module ceases to provide an authentication
319 function and starts providing an account management function.
320 Consequent changes to /etc/pam.d should be brought in using
321 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
322 need manual editing as follows. Locate this line (or similar):
324 auth required pam_nologin.so no_warn
326 and change it according to this example:
328 account required pam_nologin.so no_warn
330 That is, the first word needs to be changed from "auth" to
331 "account". The new line can be moved to the account section
332 within the file for clarity. Not updating pam.conf(5) files
333 will result in nologin(5) ignored by the respective services.
335 20070529:
336 The ether_ioctl() function has been synchronized with ioctl(2)
337 and ifnet.if_ioctl. Due to that, the size of one of its arguments
338 has changed on 64-bit architectures. All kernel modules using
339 ether_ioctl() need to be rebuilt on such architectures.
341 20070516:
342 Improved INCLUDE_CONFIG_FILE support has been introduced to the
343 config(8) utility. In order to take advantage of this new
344 functionality, you are expected to recompile and install
345 src/usr.sbin/config. If you don't rebuild config(8), and your
346 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
347 build will be broken because of a missing "kernconfstring"
348 symbol.
350 20070513:
351 Symbol versioning is enabled by default. To disable it, use
352 option WITHOUT_SYMVER. It is not advisable to attempt to
353 disable symbol versioning once it is enabled; your installworld
354 will break because a symbol version-less libc will get installed
355 before the install tools. As a result, the old install tools,
356 which previously had symbol dependencies to FBSD_1.0, will fail
357 because the freshly installed libc will not have them.
359 The default threading library (providing "libpthread") has been
360 changed to libthr. If you wish to have libkse as your default,
361 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
363 20070423:
364 The ABI breakage in sendmail(8)'s libmilter has been repaired
365 so it is no longer necessary to recompile mail filters (aka,
366 milters). If you recompiled mail filters after the 20070408
367 note, it is not necessary to recompile them again.
369 20070417:
370 The new trunk(4) driver has been renamed to lagg(4) as it better
371 reflects its purpose. ifconfig will need to be recompiled.
373 20070408:
374 sendmail(8) has been updated to version 8.14.1. Mail filters
375 (aka, milters) compiled against the libmilter included in the
376 base operating system should be recompiled.
378 20070302:
379 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
380 In order to use them one must agree to the respective LICENSE in
381 share/doc/legal and define legal.intel_<name>.license_ack=1 via
382 loader.conf(5) or kenv(1). Make sure to deinstall the now
383 deprecated modules from the respective firmware ports.
385 20070228:
386 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
387 were removed from FreeBSD's libc. These originally came from INRIA
388 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
389 deprecated in previous releases.
390 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
391 replace it as a more portable (and re-entrant) API.
393 20070224:
394 To support interrupt filtering a modification to the newbus API
395 has occurred, ABI was broken and __FreeBSD_version was bumped
396 to 700031. Please make sure that your kernel and modules are in
397 sync. For more info:
398 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
400 20070224:
401 The IPv6 multicast forwarding code may now be loaded into GENERIC
402 kernels by loading the ip_mroute.ko module. This is built into the
403 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
404 set; see src.conf(5) for more information.
406 20070214:
407 The output of netstat -r has changed. Without -n, we now only
408 print a "network name" without the prefix length if the network
409 address and mask exactly match a Class A/B/C network, and an entry
410 exists in the nsswitch "networks" map.
411 With -n, we print the full unabbreviated CIDR network prefix in
412 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
413 This change is in preparation for changes such as equal-cost
414 multipath, and to more generally assist operational deployment
415 of FreeBSD as a modern IPv4 router.
417 20070210:
418 PIM has been turned on by default in the IPv4 multicast
419 routing code. The kernel option 'PIM' has now been removed.
420 PIM is now built by default if option 'MROUTING' is specified.
421 It may now be loaded into GENERIC kernels by loading the
422 ip_mroute.ko module.
424 20070207:
425 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
426 has been removed. Its functionality may be achieved by explicitly
427 configuring gif(4) interfaces and using the 'phyint' keyword in
428 mrouted.conf.
429 XORP does not support source-routed IPv4 multicast tunnels nor the
430 integrated IPIP tunneling, therefore it is not affected by this
431 change. The __FreeBSD_version macro has been bumped to 700030.
433 20061221:
434 Support for PCI Message Signalled Interrupts has been
435 re-enabled in the bge driver, only for those chips which are
436 believed to support it properly. If there are any problems,
437 MSI can be disabled completely by setting the
438 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
439 in the loader.
441 20061214:
442 Support for PCI Message Signalled Interrupts has been
443 disabled again in the bge driver. Many revisions of the
444 hardware fail to support it properly. Support can be
445 re-enabled by removing the #define of BGE_DISABLE_MSI in
446 "src/sys/dev/bge/if_bge.c".
448 20061214:
449 Support for PCI Message Signalled Interrupts has been added
450 to the bge driver. If there are any problems, MSI can be
451 disabled completely by setting the 'hw.pci.enable_msi' and
452 'hw.pci.enable_msix' tunables to 0 in the loader.
454 20061205:
455 The removal of several facets of the experimental Threading
456 system from the kernel means that the proc and thread structures
457 have changed quite a bit. I suggest all kernel modules that might
458 reference these structures be recompiled.. Especially the
459 linux module.
461 20061126:
462 Sound infrastructure has been updated with various fixes and
463 improvements. Most of the changes are pretty much transparent,
464 with exceptions of followings:
465 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
466 moved to their own dev sysctl nodes, for example:
467 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
468 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
469 own chardev in the form of "dsp%d.<function>%d", where <function>
470 is p = playback, r = record and v = virtual, respectively. Users
471 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
472 This does not affect those who are using "/dev/dsp".
474 20061122:
475 geom(4)'s gmirror(8) class metadata structure has been
476 rev'd from v3 to v4. If you update across this point and
477 your metadata is converted for you, you will not be easily
478 able to downgrade since the /boot/kernel.old/geom_mirror.ko
479 kernel module will be unable to read the v4 metadata. You
480 can resolve this by doing from the loader(8) prompt:
482 set vfs.root.mountfrom="ufs:/dev/XXX"
484 where XXX is the root slice of one of the disks that composed
485 the mirror (i.e.: /dev/ad0s1a). You can then rebuild
486 the array the same way you built it originally.
488 20061122:
489 The following binaries have been disconnected from the build:
490 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
491 and mount_std. The functionality of these programs has been
492 moved into the mount program. For example, to mount a devfs
493 filesystem, instead of using mount_devfs, use: "mount -t devfs".
494 This does not affect entries in /etc/fstab, since entries in
495 /etc/fstab are always processed with "mount -t fstype".
497 20061113:
498 Support for PCI Message Signalled Interrupts on i386 and amd64
499 has been added to the kernel and various drivers will soon be
500 updated to use MSI when it is available. If there are any problems,
501 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
502 and 'hw.pci.enable_msix' tunables to 0 in the loader.
504 20061110:
505 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
506 The lockmgr object layout has been changed as a result of having
507 a lock_object embedded in it. As a consequence all file system
508 kernel modules must be re-compiled. The mutex profiling man page
509 has not yet been updated to reflect this change.
511 20061026:
512 KSE in the kernel has now been made optional and turned on by
513 default. Use 'nooption KSE' in your kernel config to turn it
514 off. All kernel modules *must* be recompiled after this change.
515 There-after, modules from a KSE kernel should be compatible with
516 modules from a NOKSE kernel due to the temporary padding fields
517 added to 'struct proc'.
519 20060929:
520 mrouted and its utilities have been removed from the base system.
522 20060927:
523 Some ioctl(2) command codes have changed. Full backward ABI
524 compatibility is provided if the "options COMPAT_FREEBSD6" is
525 present in the kernel configuration file. Make sure to add
526 this option to your kernel config file, or recompile X.Org
527 and the rest of ports; otherwise they may refuse to work.
529 20060924:
530 tcpslice has been removed from the base system.
532 20060913:
533 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
534 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
535 systat needs to be rebuilt.
537 20060903:
538 libpcap updated to v0.9.4 and tcpdump to v3.9.4
540 20060816:
541 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
542 for IPFIREWALL_FORWARD is now as it was before when it was first
543 committed and for years after. The behaviour is now ON.
545 20060725:
546 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
547 Now it can decrypt files created from different architectures.
548 Unfortunately, it is no longer able to decrypt a cipher text
549 generated with an older version on 64 bit architectures.
550 If you have such a file, you need old utility to decrypt it.
552 20060709:
553 The interface version of the i4b kernel part has changed. So
554 after updating the kernel sources and compiling a new kernel,
555 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
556 be rebuilt, and vice versa.
558 20060627:
559 The XBOX kernel now defaults to the nfe(4) driver instead of
560 the nve(4) driver. Please update your configuration
561 accordingly.
563 20060514:
564 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
565 PCnet family of NICs has been removed. The new le(4) driver serves
566 as an equivalent but cross-platform replacement with the pcn(4)
567 driver still providing performance-optimized support for the subset
568 of AMD Am79C971 PCnet-FAST and greater chips as before.
570 20060511:
571 The machdep.* sysctls and the adjkerntz utility have been
572 modified a bit. The new adjkerntz utility uses the new
573 sysctl names and sysctlbyname() calls, so it may be impossible
574 to run an old /sbin/adjkerntz utility in single-user mode
575 with a new kernel. Replace the `adjkerntz -i' step before
576 `make installworld' with:
578 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
580 and proceed as usual with the rest of the installworld-stage
581 steps. Otherwise, you risk installing binaries with their
582 timestamp set several hours in the future, especially if
583 you are running with local time set to GMT+X hours.
585 20060412:
586 The ip6fw utility has been removed. The behavior provided by
587 ip6fw has been in ipfw2 for a good while and the rc.d scripts
588 have been updated to deal with it. There are some rules that
589 might not migrate cleanly. Use rc.firewall6 as a template to
590 rewrite rules.
592 20060428:
593 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
594 attachments have been removed. Make sure to configure scc(4)
595 on sparc64. Note also that by default puc(4) will use uart(4)
596 and not sio(4) for serial ports because interrupt handling has
597 been optimized for multi-port serial cards and only uart(4)
598 implements the interface to support it.
600 20060330:
601 The scc(4) driver replaces puc(4) for Serial Communications
602 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
603 Z8530. On sparc64, it is advised to add scc(4) to the kernel
604 configuration to make sure that the serial ports remain
605 functional.
607 20060317:
608 Most world/kernel related NO_* build options changed names.
609 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
610 after FreeBSD ports) and should be set in /etc/src.conf
611 (the src.conf(5) manpage is provided). Full backwards
612 compatibility is maintained for the time being though it's
613 highly recommended to start moving old options out of the
614 system-wide /etc/make.conf file into the new /etc/src.conf
615 while also properly renaming them. More conversions will
616 likely follow. Posting to current@:
618 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
620 20060305:
621 The NETSMBCRYPTO kernel option has been retired because its
622 functionality is always included in NETSMB and smbfs.ko now.
624 20060303:
625 The TDFX_LINUX kernel option was retired and replaced by the
626 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
627 kernel module. Loading it alone should suffice to get 3dfx support
628 for Linux apps because it will pull in 3dfx.ko and linux.ko through
629 its dependencies.
631 20060204:
632 The 'audit' group was added to support the new auditing functionality
633 in the base system. Be sure to follow the directions for updating,
634 including the requirement to run mergemaster -p.
636 20060201:
637 The kernel ABI to file system modules was changed on i386.
638 Please make sure that your kernel and modules are in sync.
640 20060118:
641 This actually occured some time ago, but installing the kernel
642 now also installs a bunch of symbol files for the kernel modules.
643 This increases the size of /boot/kernel to about 67Mbytes. You
644 will need twice this if you will eventually back this up to kernel.old
645 on your next install.
646 If you have a shortage of room in your root partition, you should add
647 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
648 to your /etc/make.conf.
650 20060113:
651 libc's malloc implementation has been replaced. This change has the
652 potential to uncover application bugs that previously went unnoticed.
653 See the malloc(3) manual page for more details.
655 20060112:
656 The generic netgraph(4) cookie has been changed. If you upgrade
657 kernel passing this point, you also need to upgrade userland
658 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
660 20060106:
661 si(4)'s device files now contain the unit number.
662 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
664 20060106:
665 The kernel ABI was mostly destroyed due to a change in the size
666 of struct lock_object which is nested in other structures such
667 as mutexes which are nested in all sorts of other structures.
668 Make sure your kernel and modules are in sync.
670 20051231:
671 The page coloring algorithm in the VM subsystem was converted
672 from tuning with kernel options to autotuning. Please remove
673 any PQ_* option except PQ_NOOPT from your kernel config.
675 20051211:
676 The net80211-related tools in the tools/tools/ath directory
677 have been moved to tools/tools/net80211 and renamed with a
678 "wlan" prefix. Scripts that use them should be adjusted
679 accordingly.
681 20051202:
682 Scripts in the local_startup directories (as defined in
683 /etc/defaults/rc.conf) that have the new rc.d semantics will
684 now be run as part of the base system rcorder. If there are
685 errors or problems with one of these local scripts, it could
686 cause boot problems. If you encounter such problems, boot in
687 single user mode, remove that script from the */rc.d directory.
688 Please report the problem to the port's maintainer, and the
689 freebsd-ports@freebsd.org mailing list.
691 20051129:
692 The nodev mount option was deprecated in RELENG_6 (where it
693 was a no-op), and is now unsupported. If you have nodev or dev listed
694 in /etc/fstab, remove it, otherwise it will result in a mount error.
696 20051129:
697 ABI between ipfw(4) and ipfw(8) has been changed. You need
698 to rebuild ipfw(8) when rebuilding kernel.
700 20051108:
701 rp(4)'s device files now contain the unit number.
702 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
704 20051029:
705 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
706 Its /etc/rc.conf.d configuration file has been `ppp' from
707 the beginning, and hence there is no need to touch it.
709 20051014:
710 Now most modules get their build-time options from the kernel
711 configuration file. A few modules still have fixed options
712 due to their non-conformant implementation, but they will be
713 corrected eventually. You may need to review the options of
714 the modules in use, explicitly specify the non-default options
715 in the kernel configuration file, and rebuild the kernel and
716 modules afterwards.
718 20051001:
719 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
720 to turn polling(4) on your interfaces.
722 20050927:
723 The old bridge(4) implementation was retired. The new
724 if_bridge(4) serves as a full functional replacement.
726 20050722:
727 The ai_addrlen of a struct addrinfo was changed to a socklen_t
728 to conform to POSIX-2001. This change broke an ABI
729 compatibility on 64 bit architecture. You have to recompile
730 userland programs that use getaddrinfo(3) on 64 bit
731 architecture.
733 20050711:
734 RELENG_6 branched here.
736 20050629:
737 The pccard_ifconfig rc.conf variable has been removed and a new
738 variable, ifconfig_DEFAULT has been introduced. Unlike
739 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
740 do not have ifconfig_ifn entries rather than just those in
741 removable_interfaces.
743 20050616:
744 Some previous versions of PAM have permitted the use of
745 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
746 to third party PAM modules in /usr/local/lib. A change has been
747 made to require the use of absolute paths in order to avoid
748 ambiguity and dependence on library path configuration, which may
749 affect existing configurations.
751 20050610:
752 Major changes to network interface API. All drivers must be
753 recompiled. Drivers not in the base system will need to be
754 updated to the new APIs.
756 20050609:
757 Changes were made to kinfo_proc in sys/user.h. Please recompile
758 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
759 will not behave correctly.
761 The API and ABI for hwpmc(4) have changed with the addition
762 of sampling support. Please recompile lib/libpmc(3) and
763 usr.sbin/{pmcstat,pmccontrol}.
765 20050606:
766 The OpenBSD dhclient was imported in place of the ISC dhclient
767 and the network interface configuration scripts were updated
768 accordingly. If you use DHCP to configure your interfaces, you
769 must now run devd. Also, DNS updating was lost so you will need
770 to find a workaround if you use this feature.
772 The '_dhcp' user was added to support the OpenBSD dhclient. Be
773 sure to run mergemaster -p (like you are supposed to do every time
774 anyway).
776 20050605:
777 if_bridge was added to the tree. This has changed struct ifnet.
778 Please recompile userland and all network related modules.
780 20050603:
781 The n_net of a struct netent was changed to an uint32_t, and
782 1st argument of getnetbyaddr() was changed to an uint32_t, to
783 conform to POSIX-2001. These changes broke an ABI
784 compatibility on 64 bit architecture. With these changes,
785 shlib major of libpcap was bumped. You have to recompile
786 userland programs that use getnetbyaddr(3), getnetbyname(3),
787 getnetent(3) and/or libpcap on 64 bit architecture.
789 20050528:
790 Kernel parsing of extra options on '#!' first lines of shell
791 scripts has changed. Lines with multiple options likely will
792 fail after this date. For full details, please see
793 http://people.freebsd.org/~gad/Updating-20050528.txt
795 20050503:
796 The packet filter (pf) code has been updated to OpenBSD 3.7
797 Please note the changed anchor syntax and the fact that
798 authpf(8) now needs a mounted fdescfs(5) to function.
800 20050415:
801 The NO_MIXED_MODE kernel option has been removed from the i386
802 amd64 platforms as its use has been superceded by the new local
803 APIC timer code. Any kernel config files containing this option
804 should be updated.
806 20050227:
807 The on-disk format of LC_CTYPE files was changed to be machine
808 independent. Please make sure NOT to use NO_CLEAN buildworld
809 when crossing this point. Crossing this point also requires
810 recompile or reinstall of all locale depended packages.
812 20050225:
813 The ifi_epoch member of struct if_data has been changed to
814 contain the uptime at which the interface was created or the
815 statistics zeroed rather then the wall clock time because
816 wallclock time may go backwards. This should have no impact
817 unless an snmp implementation is using this value (I know of
818 none at this point.)
820 20050224:
821 The acpi_perf and acpi_throttle drivers are now part of the
822 acpi(4) main module. They are no longer built separately.
824 20050223:
825 The layout of struct image_params has changed. You have to
826 recompile all compatibility modules (linux, svr4, etc) for use
827 with the new kernel.
829 20050223:
830 The p4tcc driver has been merged into cpufreq(4). This makes
831 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
832 compile in "device cpufreq" to restore this functionality.
834 20050220:
835 The responsibility of recomputing the file system summary of
836 a SoftUpdates-enabled dirty volume has been transferred to the
837 background fsck. A rebuild of fsck(8) utility is recommended
838 if you have updated the kernel.
840 To get the old behavior (recompute file system summary at mount
841 time), you can set vfs.ffs.compute_summary_at_mount=1 before
842 mounting the new volume.
844 20050206:
845 The cpufreq import is complete. As part of this, the sysctls for
846 acpi(4) throttling have been removed. The power_profile script
847 has been updated, so you can use performance/economy_cpu_freq in
848 rc.conf(5) to set AC on/offline cpu frequencies.
850 20050206:
851 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
852 requires recompiling libnetgraph and userland netgraph utilities.
854 20050114:
855 Support for abbreviated forms of a number of ipfw options is
856 now deprecated. Warnings are printed to stderr indicating the
857 correct full form when a match occurs. Some abbreviations may
858 be supported at a later date based on user feedback. To be
859 considered for support, abbreviations must be in use prior to
860 this commit and unlikely to be confused with current key words.
862 20041221:
863 By a popular demand, a lot of NOFOO options were renamed
864 to NO_FOO (see bsd.compat.mk for a full list). The old
865 spellings are still supported, but will cause annoying
866 warnings on stderr. Make sure you upgrade properly (see
867 the COMMON ITEMS: section later in this file).
869 20041219:
870 Auto-loading of ancillary wlan modules such as wlan_wep has
871 been temporarily disabled; you need to statically configure
872 the modules you need into your kernel or explicitly load them
873 prior to use. Specifically, if you intend to use WEP encryption
874 with an 802.11 device load/configure wlan_wep; if you want to
875 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
876 and wlan_xauth as required.
878 20041213:
879 The behaviour of ppp(8) has changed slightly. If lqr is enabled
880 (``enable lqr''), older versions would revert to LCP ECHO mode on
881 negotiation failure. Now, ``enable echo'' is required for this
882 behaviour. The ppp version number has been bumped to 3.4.2 to
883 reflect the change.
885 20041201:
886 The wlan support has been updated to split the crypto support
887 into separate modules. For static WEP you must configure the
888 wlan_wep module in your system or build and install the module
889 in place where it can be loaded (the kernel will auto-load
890 the module when a wep key is configured).
892 20041201:
893 The ath driver has been updated to split the tx rate control
894 algorithm into a separate module. You need to include either
895 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
897 20041116:
898 Support for systems with an 80386 CPU has been removed. Please
899 use FreeBSD 5.x or earlier on systems with an 80386.
901 20041110:
902 We have had a hack which would mount the root filesystem
903 R/W if the device were named 'md*'. As part of the vnode
904 work I'm doing I have had to remove this hack. People
905 building systems which use preloaded MD root filesystems
906 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
907 their /etc/rc scripts.
909 20041104:
910 FreeBSD 5.3 shipped here.
912 20041102:
913 The size of struct tcpcb has changed again due to the removal
914 of RFC1644 T/TCP. You have to recompile userland programs that
915 read kmem for tcp sockets directly (netstat, sockstat, etc.)
917 20041022:
918 The size of struct tcpcb has changed. You have to recompile
919 userland programs that read kmem for tcp sockets directly
920 (netstat, sockstat, etc.)
922 20041016:
923 RELENG_5 branched here. For older entries, please see updating
924 in the RELENG_5 branch.
926 COMMON ITEMS:
928 General Notes
929 -------------
930 Avoid using make -j when upgrading. From time to time in the
931 past there have been problems using -j with buildworld and/or
932 installworld. This is especially true when upgrading between
933 "distant" versions (eg one that cross a major release boundary
934 or several minor releases, or when several months have passed
935 on the -current branch).
937 Sometimes, obscure build problems are the result of environment
938 poisoning. This can happen because the make utility reads its
939 environment when searching for values for global variables.
940 To run your build attempts in an "environmental clean room",
941 prefix all make commands with 'env -i '. See the env(1) manual
942 page for more details.
944 When upgrading from one major version to another it is generally
945 best to upgrade to the latest code in the currently installed branch
946 first, then do an upgrade to the new branch. This is the best-tested
947 upgrade path, and has the highest probability of being successful.
948 Please try this approach before reporting problems with a major
949 version upgrade.
951 To build a kernel
952 -----------------
953 If you are updating from a prior version of FreeBSD (even one just
954 a few days old), you should follow this procedure. It is the most
955 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
957 make kernel-toolchain
958 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
959 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
961 To test a kernel once
962 ---------------------
963 If you just want to boot a kernel once (because you are not sure
964 if it works, or if you want to boot a known bad kernel to provide
965 debugging information) run
966 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
967 nextboot -k testkernel
969 To just build a kernel when you know that it won't mess you up
970 --------------------------------------------------------------
971 This assumes you are already running a 5.X system. Replace
972 ${arch} with the architecture of your machine (e.g. "i386",
973 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
975 cd src/sys/${arch}/conf
976 config KERNEL_NAME_HERE
977 cd ../compile/KERNEL_NAME_HERE
978 make depend
979 make
980 make install
982 If this fails, go to the "To build a kernel" section.
984 To rebuild everything and install it on the current system.
985 -----------------------------------------------------------
986 # Note: sometimes if you are running current you gotta do more than
987 # is listed here if you are upgrading from a really old current.
989 <make sure you have good level 0 dumps>
990 make buildworld
991 make kernel KERNCONF=YOUR_KERNEL_HERE
992 [1]
993 <reboot in single user> [3]
994 mergemaster -p [5]
995 make installworld
996 make delete-old
997 mergemaster [4]
998 <reboot>
1001 To cross-install current onto a separate partition
1002 --------------------------------------------------
1003 # In this approach we use a separate partition to hold
1004 # current's root, 'usr', and 'var' directories. A partition
1005 # holding "/", "/usr" and "/var" should be about 2GB in
1006 # size.
1008 <make sure you have good level 0 dumps>
1009 <boot into -stable>
1010 make buildworld
1011 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1012 <maybe newfs current's root partition>
1013 <mount current's root partition on directory ${CURRENT_ROOT}>
1014 make installworld DESTDIR=${CURRENT_ROOT}
1015 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1016 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1017 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
1018 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1019 <reboot into current>
1020 <do a "native" rebuild/install as described in the previous section>
1021 <maybe install compatibility libraries from src/lib/compat>
1022 <reboot>
1025 To upgrade in-place from 5.x-stable to current
1026 ----------------------------------------------
1027 <make sure you have good level 0 dumps>
1028 make buildworld [9]
1029 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
1030 [1]
1031 <reboot in single user> [3]
1032 mergemaster -p [5]
1033 make installworld
1034 make delete-old
1035 mergemaster -i [4]
1036 <reboot>
1038 Make sure that you've read the UPDATING file to understand the
1039 tweaks to various things you need. At this point in the life
1040 cycle of current, things change often and you are on your own
1041 to cope. The defaults can also change, so please read ALL of
1042 the UPDATING entries.
1044 Also, if you are tracking -current, you must be subscribed to
1045 freebsd-current@freebsd.org. Make sure that before you update
1046 your sources that you have read and understood all the recent
1047 messages there. If in doubt, please track -stable which has
1048 much fewer pitfalls.
1050 [1] If you have third party modules, such as vmware, you
1051 should disable them at this point so they don't crash your
1052 system on reboot.
1054 [3] From the bootblocks, boot -s, and then do
1055 fsck -p
1056 mount -u /
1057 mount -a
1058 cd src
1059 adjkerntz -i # if CMOS is wall time
1060 Also, when doing a major release upgrade, it is required that
1061 you boot into single user mode to do the installworld.
1063 [4] Note: This step is non-optional. Failure to do this step
1064 can result in a significant reduction in the functionality of the
1065 system. Attempting to do it by hand is not recommended and those
1066 that pursue this avenue should read this file carefully, as well
1067 as the archives of freebsd-current and freebsd-hackers mailing lists
1068 for potential gotchas.
1070 [5] Usually this step is a noop. However, from time to time
1071 you may need to do this if you get unknown user in the following
1072 step. It never hurts to do it all the time. You may need to
1073 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1074 install) after the buildworld before this step if you last updated
1075 from current before 20020224 or from -stable before 20020408.
1077 [8] In order to have a kernel that can run the 4.x binaries
1078 needed to do an installworld, you must include the COMPAT_FREEBSD4
1079 option in your kernel. Failure to do so may leave you with a system
1080 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
1081 is required to run the 5.x binaries on more recent kernels.
1083 Make sure that you merge any new devices from GENERIC since the
1084 last time you updated your kernel config file.
1086 [9] When checking out sources, you must include the -P flag to have
1087 cvs prune empty directories.
1089 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1090 "?=" instead of the "=" assignment operator, so that buildworld can
1091 override the CPUTYPE if it needs to.
1093 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1094 not on the command line, or in /etc/make.conf. buildworld will
1095 warn if it is improperly defined.
1096 FORMAT:
1098 This file contains a list, in reverse chronological order, of major
1099 breakages in tracking -current. Not all things will be listed here,
1100 and it only starts on October 16, 2004. Updating files can found in
1101 previous releases if your system is older than this.
1103 Copyright information:
1105 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
1107 Redistribution, publication, translation and use, with or without
1108 modification, in full or in part, in any form or format of this
1109 document are permitted without further permission from the author.
1111 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1112 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1113 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1114 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1115 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1116 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1117 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1118 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1119 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1120 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1121 POSSIBILITY OF SUCH DAMAGE.
1123 If you find this document useful, and you want to, you may buy the
1124 author a beer.
1126 Contact Warner Losh if you have any questions about your use of
1127 this document.
1129 $FreeBSD$