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 GEOM_PART has become the default partition slicer for storage devices,
27 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
28 introduces some changes:
30 MSDOS/EBR: the devices created from MSDOS extended partition entries
31 (EBR) can be named differently than with GEOM_MBR and are now symlinks
32 to devices with offset-based names. fstabs may need to be modified.
34 BSD: the "geometry does not match label" warning is harmless in most
35 cases but it points to problems in file system misalignment with
36 disk geometry. The "c" partition is now implicit, covers the whole
37 top-level drive and cannot be (mis)used by users.
39 General: Kernel dumps are now not allowed to be written to devices
40 whose partition types indicate they are meant to be used for file
41 systems (or, in case of MSDOS partitions, as something else than
44 Most of these changes date approximately from 200812.
47 The uscanner(4) driver has been removed from the kernel. This follows
48 Linux removing theirs in 2.6 and making libusb the default interface
52 The multicast forwarding code has been cleaned up. netstat(1)
53 only relies on KVM now for printing bandwidth upcall meters.
54 The IPv4 and IPv6 modules are split into ip_mroute_mod and
55 ip6_mroute_mod respectively. The config(5) options for statically
56 compiling this code remain the same, i.e. 'options MROUTING'.
59 Support for the IFF_NEEDSGIANT network interface flag has been
60 removed, which means that non-MPSAFE network device drivers are no
61 longer supported. In particular, if_ar, if_sr, and network device
62 drivers from the old (legacy) USB stack can no longer be built or
66 POSIX.1 Native Language Support (NLS) has been enabled in libc and
67 a bunch of new language catalog files have also been added.
68 This means that some common libc messages are now localized and
69 they depend on the LC_MESSAGES environmental variable.
72 The k8temp(4) driver has been renamed to amdtemp(4) since
73 support for K10 and K11 CPU families was added.
76 IGMPv3 and Source-Specific Multicast (SSM) have been merged
77 to the IPv4 stack. VIMAGE hooks are in but not yet used.
79 For kernel developers, the most important changes are that the
80 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
81 and this lock has been downgraded to a non-recursive mutex.
83 Transport protocols (UDP, Raw IP) are now responsible for filtering
84 inbound multicast traffic according to group membership and source
85 filters. The imo_multicast_filter() KPI exists for this purpose.
86 Transports which do not use multicast (SCTP, TCP) already reject
87 multicast by default. Forwarding and receive performance may improve
88 as a mutex acquisition is no longer needed in the ip_input()
89 low-level input path. in_addmulti() and in_delmulti() are shimmed
90 to new KPIs which exist to support SSM in-kernel.
92 For application developers, it is recommended that loopback of
93 multicast datagrams be disabled for best performance, as this
94 will still cause the lock to be taken for each looped-back
95 datagram transmission. The net.inet.ip.mcast.loop sysctl may
96 be tuned to 0 to disable loopback by default; it defaults to 1
97 to preserve the existing behaviour.
99 For systems administrators, to obtain best performance with
100 multicast reception and multiple groups, it is always recommended
101 that a card with a suitably precise hash filter is used. Hash
102 collisions will still result in the lock being taken within the
103 transport protocol input path to check group membership.
105 If deploying FreeBSD in an environment with IGMP snooping switches,
106 it is recommended that the net.inet.igmp.sendlocal sysctl remain
107 enabled; this forces 224.0.0.0/24 group membership to be announced
110 The size of 'struct igmpstat' has changed; netstat needs to be
111 recompiled to reflect this.
112 Bump __FreeBSD_version to 800070.
115 libusb20.so.1 is now installed as libusb.so.1 and the ports system
116 updated to use it. This requires a buildworld/installworld in order to
117 update the library and dependencies (usbconfig, etc). Its advisable to
118 rebuild all ports which uses libusb. More specific directions are given
119 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
120 libusb are no longer required and can be removed.
123 A workaround is committed to allow the creation of System V shared
124 memory segment of size > 2 GB on the 64-bit architectures.
125 Due to a limitation of the existing ABI, the shm_segsz member
126 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
127 wrong for large segments. Note that limits must be explicitely
128 raised to allow such segments to be created.
131 The layout of struct ifnet has changed, requiring a rebuild of all
132 network device driver modules.
135 The /dev handling for the new USB stack has changed, a
136 buildworld/installworld is required for libusb20.
139 The new USB2 stack has now been permanently moved in and all kernel and
140 module names reverted to their previous values (eg, usb, ehci, ohci,
141 ums, ...). The old usb stack can be compiled in by prefixing the name
142 with the letter 'o', the old usb modules have been removed.
143 Updating entry 20090216 for xorg and 20090215 for libmap may still
147 The rc.conf(5) option if_up_delay has been renamed to
148 defaultroute_delay to better reflect its purpose. If you have
149 customized this setting in /etc/rc.conf you need to update it to
153 xorg 7.4 wants to configure its input devices via hald which does not
154 yet work with USB2. If the keyboard/mouse does not work in xorg then
156 Option "AllowEmptyInput" "off"
157 to your ServerLayout section. This will cause X to use the configured
158 kbd and mouse sections from your xorg.conf.
161 The GENERIC kernels for all architectures now default to the new USB2
162 stack. No kernel config options or code have been removed so if a
163 problem arises please report it and optionally revert to the old USB
164 stack. If you are loading USB kernel modules or have a custom kernel
165 that includes GENERIC then ensure that usb names are also changed over,
166 eg uftdi -> usb2_serial_ftdi.
168 Older programs linked against the ports libusb 0.1 need to be
169 redirected to the new stack's libusb20. /etc/libmap.conf can
171 # Map old usb library to new one for usb2 stack
172 libusb-0.1.so.8 libusb20.so.1
175 The ichsmb(4) driver has been changed to require SMBus slave
176 addresses be left-justified (xxxxxxx0b) rather than right-justified.
177 All of the other SMBus controller drivers require left-justified
178 slave addresses, so this change makes all the drivers provide the
182 INET6 statistics (struct ip6stat) was updated.
183 netstat(1) needs to be recompiled.
186 NTFS has been removed from GENERIC kernel on amd64 to match
187 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
188 will load ntfs.ko module automatically when NTFS support is
189 actually needed, unless ntfs.ko is not installed or security
190 level prohibits loading kernel modules. If either is the case,
191 "options NTFS" has to be added into kernel config.
194 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
195 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
196 800061. User space tools that rely on the size of struct tcpcb in
197 tcp_var.h (e.g. sockstat) need to be recompiled.
200 ng_tty(4) module updated to match the new TTY subsystem.
201 Due to API change, user-level applications must be updated.
202 New API support added to mpd5 CVS and expected to be present
203 in next mpd5.3 release.
206 With __FreeBSD_version 800060 the makefs tool is part of
207 the base system (it was a port).
210 The afdata and ifnet locks have been changed from mutexes to
211 rwlocks, network modules will need to be re-compiled.
214 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
215 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
216 The new code reduced struct rtentry{} by 16 bytes on 32-bit
217 architecture and 40 bytes on 64-bit architecture. The userland
218 applications "arp" and "ndp" have been updated accordingly.
219 The output from "netstat -r" shows only routing entries and
220 none of the L2 information.
223 __FreeBSD_version 800057 marks the switchover from the
224 binary ath hal to source code. Users must add the line:
226 options AH_SUPPORT_AR5416
228 to their kernel config files when specifying:
232 The ath_hal module no longer exists; the code is now compiled
233 together with the driver in the ath module. It is now
234 possible to tailor chip support (i.e. reduce the set of chips
235 and thereby the code size); consult ath_hal(4) for details.
238 __FreeBSD_version 800054 adds memory barriers to
239 <machine/atomic.h>, new interfaces to ifnet to facilitate
240 multiple hardware transmit queues for cards that support
241 them, and a lock-less ring-buffer implementation to
242 enable drivers to more efficiently manage queueing of
246 A new version of ZFS (version 13) has been merged to -HEAD.
247 This version has zpool attribute "listsnapshots" off by
248 default, which means "zfs list" does not show snapshots,
249 and is the same as Solaris behavior.
252 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
255 The uhci, ohci, ehci and slhci USB Host controller drivers have
256 been put into separate modules. If you load the usb module
257 separately through loader.conf you will need to load the
258 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
259 controller add the following to loader.conf:
265 The ABI used by the PMC toolset has changed. Please keep
266 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
270 The TTY subsystem of the kernel has been replaced by a new
271 implementation, which provides better scalability and an
272 improved driver model. Most common drivers have been migrated to
273 the new TTY subsystem, while others have not. The following
274 drivers have not yet been ported to the new TTY layer:
277 cy, digi, rc, rp, sio
283 ng_h4, ng_tty, ppp, sl, snp
285 Adding these drivers to your kernel configuration file shall
286 cause compilation to fail.
289 ntpd has been upgraded to 4.2.4p5.
292 OpenSSH has been upgraded to 5.1p1.
294 For many years, FreeBSD's version of OpenSSH preferred DSA
295 over RSA for host and user authentication keys. With this
296 upgrade, we've switched to the vendor's default of RSA over
297 DSA. This may cause upgraded clients to warn about unknown
298 host keys even for previously known hosts. Users should
299 follow the usual procedure for verifying host keys before
300 accepting the RSA key.
302 This can be circumvented by setting the "HostKeyAlgorithms"
303 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
306 Please note that the sequence of keys offered for
307 authentication has been changed as well. You may want to
308 specify IdentityFile in a different order to revert this
312 The sio(4) driver has been removed from the i386 and amd64
313 kernel configuration files. This means uart(4) is now the
314 default serial port driver on those platforms as well.
316 To prevent collisions with the sio(4) driver, the uart(4) driver
317 uses different names for its device nodes. This means the
318 onboard serial port will now most likely be called "ttyu0"
319 instead of "ttyd0". You may need to reconfigure applications to
320 use the new device names.
322 When using the serial port as a boot console, be sure to update
323 /boot/device.hints and /etc/ttys before booting the new kernel.
324 If you forget to do so, you can still manually specify the hints
325 at the loader prompt:
327 set hint.uart.0.at="isa"
328 set hint.uart.0.port="0x3F8"
329 set hint.uart.0.flags="0x10"
330 set hint.uart.0.irq="4"
334 The gpt(8) utility has been removed. Use gpart(8) to partition
338 The version that Linuxulator emulates was changed from 2.4.2
339 to 2.6.16. If you experience any problems with Linux binaries
340 please try to set sysctl compat.linux.osrelease to 2.4.2 and
341 if it fixes the problem contact emulation mailing list.
344 ISDN4BSD (I4B) was removed from the src tree. You may need to
345 update a your kernel configuration and remove relevant entries.
348 I have checked in code to support multiple routing tables.
349 See the man pages setfib(1) and setfib(2).
350 This is a hopefully backwards compatible version,
351 but to make use of it you need to compile your kernel
352 with options ROUTETABLES=2 (or more up to 16).
355 The 802.11 wireless support was redone to enable multi-bss
356 operation on devices that are capable. The underlying device
357 is no longer used directly but instead wlanX devices are
358 cloned with ifconfig. This requires changes to rc.conf files.
360 ifconfig_ath0="WPA DHCP"
363 ifconfig_wlan0="WPA DHCP"
364 see rc.conf(5) for more details. In addition, mergemaster of
365 /etc/rc.d is highly recommended. Simultaneous update of userland
366 and kernel wouldn't hurt either.
368 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
369 modules were merged into the base wlan module. All references
370 to these modules (e.g. in kernel config files) must be removed.
373 psm(4) has gained write(2) support in native operation level.
374 Arbitrary commands can be written to /dev/psm%d and status can
375 be read back from it. Therefore, an application is responsible
376 for status validation and error recovery. It is a no-op in
377 other operation levels.
380 Support for KSE threading has been removed from the kernel. To
381 run legacy applications linked against KSE libmap.conf may
382 be used. The following libmap.conf may be used to ensure
383 compatibility with any prior release:
385 libpthread.so.1 libthr.so.1
386 libpthread.so.2 libthr.so.2
387 libkse.so.3 libthr.so.3
390 The layout of struct vmspace has changed. This affects libkvm
391 and any executables that link against libkvm and use the
392 kvm_getprocs() function. In particular, but not exclusively,
393 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
394 The effects are minimal, but it's advisable to upgrade world
398 The latest em driver no longer has support in it for the
399 82575 adapter, this is now moved to the igb driver. The
400 split was done to make new features that are incompatible
401 with older hardware easier to do.
404 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
405 likewise the kernel option is now GEOM_LINUX_LVM.
408 The default NFS mount mode has changed from UDP to TCP for
409 increased reliability. If you rely on (insecurely) NFS
410 mounting across a firewall you may need to update your
414 Belatedly note the addition of m_collapse for compacting
418 The fts(3) structures have been changed to use adequate
419 integer types for their members and so to be able to cope
420 with huge file trees. The old fts(3) ABI is preserved
421 through symbol versioning in libc, so third-party binaries
422 using fts(3) should still work, although they will not take
423 advantage of the extended types. At the same time, some
424 third-party software might fail to build after this change
425 due to unportable assumptions made in its source code about
426 fts(3) structure members. Such software should be fixed
427 by its vendor or, in the worst case, in the ports tree.
428 FreeBSD_version 800015 marks this change for the unlikely
429 case that a portable fix is impossible.
432 To upgrade to -current after this date, you must be running
433 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
434 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
437 The ADAPTIVE_GIANT kernel option has been retired because its
438 functionality is the default now.
441 The AT keyboard emulation of sunkbd(4) has been turned on
442 by default. In order to make the special symbols of the Sun
443 keyboards driven by sunkbd(4) work under X these now have
444 to be configured the same way as Sun USB keyboards driven
445 by ukbd(4) (which also does AT keyboard emulation), f.e.:
447 Option "XkbLayout" "us"
448 Option "XkbRules" "xorg"
449 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
452 It has been decided that it is desirable to provide ABI
453 backwards compatibility to the FreeBSD 4/5/6 versions of the
454 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
455 broken with the introduction of PCI domain support (see the
456 20070930 entry). Unfortunately, this required the ABI of
457 PCIOCGETCONF to be broken again in order to be able to
458 provide backwards compatibility to the old version of that
459 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
460 again. As for prominent ports this affects neither pciutils
461 nor xorg-server this time, the hal port needs to be rebuilt
465 The misnamed kthread_create() and friends have been renamed
466 to kproc_create() etc. Many of the callers already
468 I will return kthread_create() and friends in a while
469 with implementations that actually create threads, not procs.
470 Renaming corresponds with version 800002.
476 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
477 WITHOUT_LIBTHR are set.
480 The PCI code has been made aware of PCI domains. This means that
481 the location strings as used by pciconf(8) etc are now in the
482 following format: pci<domain>:<bus>:<device>[:<function>]. It
483 also means that consumers of <sys/pciio.h> potentially need to
484 be recompiled; this includes the hal and xorg-server ports.
487 The caching daemon (cached) was renamed to nscd. nscd.conf
488 configuration file should be used instead of cached.conf and
489 nscd_enable, nscd_pidfile and nscd_flags options should be used
490 instead of cached_enable, cached_pidfile and cached_flags in
494 The getfacl(1) utility now prints owning user and group name
495 instead of owning uid and gid in the three line comment header.
496 This is the same behavior as getfacl(1) on Solaris and Linux.
499 The new IPsec code is now compiled in using the IPSEC option. The
500 IPSEC option now requires "device crypto" be defined in your kernel
501 configuration. The FAST_IPSEC kernel option is now deprecated.
504 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
505 note the changed syntax - keep state is now on by default. Also
506 note the fact that ftp-proxy(8) has been changed from bottom up and
507 has been moved from libexec to usr/sbin. Changes in the ALTQ
508 handling also affect users of IPFW's ALTQ capabilities.
511 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
512 only IPsec supported by FreeBSD. The new IPsec stack
513 supports both IPv4 and IPv6. The kernel option will change
514 after the code changes have settled in. For now the kernel
515 option IPSEC is deprecated and FAST_IPSEC is the only option, that
516 will change after some settling time.
519 The wicontrol(8) utility has been removed from the base system. wi(4)
520 cards should be configured using ifconfig(8), see the man page for more
524 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
525 instead of the nve(4) driver. Please update your configuration
529 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
530 database if it is missing or older than the aliases file. If
531 desired, set the new rc.conf option sendmail_rebuild_aliases
532 to "YES" to restore that functionality.
535 The IPv4 multicast socket code has been considerably modified, and
536 moved to the file sys/netinet/in_mcast.c. Initial support for the
537 RFC 3678 Source-Specific Multicast Socket API has been added to
538 the IPv4 network stack.
540 Strict multicast and broadcast reception is now the default for
541 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
542 has now been removed.
544 The RFC 1724 hack for interface selection has been removed; the use
545 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
546 been added to replace it. Consumers such as routed will soon be
547 updated to reflect this.
549 These changes affect users who are running routed(8) or rdisc(8)
550 from the FreeBSD base system on point-to-point or unnumbered
554 The net80211 layer has changed significantly and all wireless
555 drivers that depend on it need to be recompiled. Further these
556 changes require that any program that interacts with the wireless
557 support in the kernel be recompiled; this includes: ifconfig,
558 wpa_supplicant, hostapd, and wlanstats. Users must also, for
559 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
560 if they use modules for wireless support. These modules implement
561 scanning support for station and ap modes, respectively. Failure
562 to load the appropriate module before marking a wireless interface
563 up will result in a message to the console and the device not
567 The pam_nologin(8) module ceases to provide an authentication
568 function and starts providing an account management function.
569 Consequent changes to /etc/pam.d should be brought in using
570 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
571 need manual editing as follows. Locate this line (or similar):
573 auth required pam_nologin.so no_warn
575 and change it according to this example:
577 account required pam_nologin.so no_warn
579 That is, the first word needs to be changed from "auth" to
580 "account". The new line can be moved to the account section
581 within the file for clarity. Not updating pam.conf(5) files
582 will result in nologin(5) ignored by the respective services.
585 The ether_ioctl() function has been synchronized with ioctl(2)
586 and ifnet.if_ioctl. Due to that, the size of one of its arguments
587 has changed on 64-bit architectures. All kernel modules using
588 ether_ioctl() need to be rebuilt on such architectures.
591 Improved INCLUDE_CONFIG_FILE support has been introduced to the
592 config(8) utility. In order to take advantage of this new
593 functionality, you are expected to recompile and install
594 src/usr.sbin/config. If you don't rebuild config(8), and your
595 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
596 build will be broken because of a missing "kernconfstring"
600 Symbol versioning is enabled by default. To disable it, use
601 option WITHOUT_SYMVER. It is not advisable to attempt to
602 disable symbol versioning once it is enabled; your installworld
603 will break because a symbol version-less libc will get installed
604 before the install tools. As a result, the old install tools,
605 which previously had symbol dependencies to FBSD_1.0, will fail
606 because the freshly installed libc will not have them.
608 The default threading library (providing "libpthread") has been
609 changed to libthr. If you wish to have libkse as your default,
610 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
613 The ABI breakage in sendmail(8)'s libmilter has been repaired
614 so it is no longer necessary to recompile mail filters (aka,
615 milters). If you recompiled mail filters after the 20070408
616 note, it is not necessary to recompile them again.
619 The new trunk(4) driver has been renamed to lagg(4) as it better
620 reflects its purpose. ifconfig will need to be recompiled.
623 sendmail(8) has been updated to version 8.14.1. Mail filters
624 (aka, milters) compiled against the libmilter included in the
625 base operating system should be recompiled.
628 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
629 In order to use them one must agree to the respective LICENSE in
630 share/doc/legal and define legal.intel_<name>.license_ack=1 via
631 loader.conf(5) or kenv(1). Make sure to deinstall the now
632 deprecated modules from the respective firmware ports.
635 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
636 were removed from FreeBSD's libc. These originally came from INRIA
637 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
638 deprecated in previous releases.
639 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
640 replace it as a more portable (and re-entrant) API.
643 To support interrupt filtering a modification to the newbus API
644 has occurred, ABI was broken and __FreeBSD_version was bumped
645 to 700031. Please make sure that your kernel and modules are in
647 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
650 The IPv6 multicast forwarding code may now be loaded into GENERIC
651 kernels by loading the ip_mroute.ko module. This is built into the
652 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
653 set; see src.conf(5) for more information.
656 The output of netstat -r has changed. Without -n, we now only
657 print a "network name" without the prefix length if the network
658 address and mask exactly match a Class A/B/C network, and an entry
659 exists in the nsswitch "networks" map.
660 With -n, we print the full unabbreviated CIDR network prefix in
661 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
662 This change is in preparation for changes such as equal-cost
663 multipath, and to more generally assist operational deployment
664 of FreeBSD as a modern IPv4 router.
667 PIM has been turned on by default in the IPv4 multicast
668 routing code. The kernel option 'PIM' has now been removed.
669 PIM is now built by default if option 'MROUTING' is specified.
670 It may now be loaded into GENERIC kernels by loading the
674 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
675 has been removed. Its functionality may be achieved by explicitly
676 configuring gif(4) interfaces and using the 'phyint' keyword in
678 XORP does not support source-routed IPv4 multicast tunnels nor the
679 integrated IPIP tunneling, therefore it is not affected by this
680 change. The __FreeBSD_version macro has been bumped to 700030.
683 Support for PCI Message Signalled Interrupts has been
684 re-enabled in the bge driver, only for those chips which are
685 believed to support it properly. If there are any problems,
686 MSI can be disabled completely by setting the
687 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
691 Support for PCI Message Signalled Interrupts has been
692 disabled again in the bge driver. Many revisions of the
693 hardware fail to support it properly. Support can be
694 re-enabled by removing the #define of BGE_DISABLE_MSI in
695 "src/sys/dev/bge/if_bge.c".
698 Support for PCI Message Signalled Interrupts has been added
699 to the bge driver. If there are any problems, MSI can be
700 disabled completely by setting the 'hw.pci.enable_msi' and
701 'hw.pci.enable_msix' tunables to 0 in the loader.
704 The removal of several facets of the experimental Threading
705 system from the kernel means that the proc and thread structures
706 have changed quite a bit. I suggest all kernel modules that might
707 reference these structures be recompiled.. Especially the
711 Sound infrastructure has been updated with various fixes and
712 improvements. Most of the changes are pretty much transparent,
713 with exceptions of followings:
714 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
715 moved to their own dev sysctl nodes, for example:
716 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
717 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
718 own chardev in the form of "dsp%d.<function>%d", where <function>
719 is p = playback, r = record and v = virtual, respectively. Users
720 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
721 This does not affect those who are using "/dev/dsp".
724 geom(4)'s gmirror(8) class metadata structure has been
725 rev'd from v3 to v4. If you update across this point and
726 your metadata is converted for you, you will not be easily
727 able to downgrade since the /boot/kernel.old/geom_mirror.ko
728 kernel module will be unable to read the v4 metadata. You
729 can resolve this by doing from the loader(8) prompt:
731 set vfs.root.mountfrom="ufs:/dev/XXX"
733 where XXX is the root slice of one of the disks that composed
734 the mirror (i.e.: /dev/ad0s1a). You can then rebuild
735 the array the same way you built it originally.
738 The following binaries have been disconnected from the build:
739 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
740 and mount_std. The functionality of these programs has been
741 moved into the mount program. For example, to mount a devfs
742 filesystem, instead of using mount_devfs, use: "mount -t devfs".
743 This does not affect entries in /etc/fstab, since entries in
744 /etc/fstab are always processed with "mount -t fstype".
747 Support for PCI Message Signalled Interrupts on i386 and amd64
748 has been added to the kernel and various drivers will soon be
749 updated to use MSI when it is available. If there are any problems,
750 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
751 and 'hw.pci.enable_msix' tunables to 0 in the loader.
754 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
755 The lockmgr object layout has been changed as a result of having
756 a lock_object embedded in it. As a consequence all file system
757 kernel modules must be re-compiled. The mutex profiling man page
758 has not yet been updated to reflect this change.
761 KSE in the kernel has now been made optional and turned on by
762 default. Use 'nooption KSE' in your kernel config to turn it
763 off. All kernel modules *must* be recompiled after this change.
764 There-after, modules from a KSE kernel should be compatible with
765 modules from a NOKSE kernel due to the temporary padding fields
766 added to 'struct proc'.
769 mrouted and its utilities have been removed from the base system.
772 Some ioctl(2) command codes have changed. Full backward ABI
773 compatibility is provided if the "options COMPAT_FREEBSD6" is
774 present in the kernel configuration file. Make sure to add
775 this option to your kernel config file, or recompile X.Org
776 and the rest of ports; otherwise they may refuse to work.
779 tcpslice has been removed from the base system.
782 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
783 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
784 systat needs to be rebuilt.
787 libpcap updated to v0.9.4 and tcpdump to v3.9.4
790 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
791 for IPFIREWALL_FORWARD is now as it was before when it was first
792 committed and for years after. The behaviour is now ON.
795 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
796 Now it can decrypt files created from different architectures.
797 Unfortunately, it is no longer able to decrypt a cipher text
798 generated with an older version on 64 bit architectures.
799 If you have such a file, you need old utility to decrypt it.
802 The interface version of the i4b kernel part has changed. So
803 after updating the kernel sources and compiling a new kernel,
804 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
805 be rebuilt, and vice versa.
808 The XBOX kernel now defaults to the nfe(4) driver instead of
809 the nve(4) driver. Please update your configuration
813 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
814 PCnet family of NICs has been removed. The new le(4) driver serves
815 as an equivalent but cross-platform replacement with the pcn(4)
816 driver still providing performance-optimized support for the subset
817 of AMD Am79C971 PCnet-FAST and greater chips as before.
820 The machdep.* sysctls and the adjkerntz utility have been
821 modified a bit. The new adjkerntz utility uses the new
822 sysctl names and sysctlbyname() calls, so it may be impossible
823 to run an old /sbin/adjkerntz utility in single-user mode
824 with a new kernel. Replace the `adjkerntz -i' step before
825 `make installworld' with:
827 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
829 and proceed as usual with the rest of the installworld-stage
830 steps. Otherwise, you risk installing binaries with their
831 timestamp set several hours in the future, especially if
832 you are running with local time set to GMT+X hours.
835 The ip6fw utility has been removed. The behavior provided by
836 ip6fw has been in ipfw2 for a good while and the rc.d scripts
837 have been updated to deal with it. There are some rules that
838 might not migrate cleanly. Use rc.firewall6 as a template to
842 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
843 attachments have been removed. Make sure to configure scc(4)
844 on sparc64. Note also that by default puc(4) will use uart(4)
845 and not sio(4) for serial ports because interrupt handling has
846 been optimized for multi-port serial cards and only uart(4)
847 implements the interface to support it.
850 The scc(4) driver replaces puc(4) for Serial Communications
851 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
852 Z8530. On sparc64, it is advised to add scc(4) to the kernel
853 configuration to make sure that the serial ports remain
857 Most world/kernel related NO_* build options changed names.
858 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
859 after FreeBSD ports) and should be set in /etc/src.conf
860 (the src.conf(5) manpage is provided). Full backwards
861 compatibility is maintained for the time being though it's
862 highly recommended to start moving old options out of the
863 system-wide /etc/make.conf file into the new /etc/src.conf
864 while also properly renaming them. More conversions will
865 likely follow. Posting to current@:
867 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
870 The NETSMBCRYPTO kernel option has been retired because its
871 functionality is always included in NETSMB and smbfs.ko now.
874 The TDFX_LINUX kernel option was retired and replaced by the
875 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
876 kernel module. Loading it alone should suffice to get 3dfx support
877 for Linux apps because it will pull in 3dfx.ko and linux.ko through
881 The 'audit' group was added to support the new auditing functionality
882 in the base system. Be sure to follow the directions for updating,
883 including the requirement to run mergemaster -p.
886 The kernel ABI to file system modules was changed on i386.
887 Please make sure that your kernel and modules are in sync.
890 This actually occured some time ago, but installing the kernel
891 now also installs a bunch of symbol files for the kernel modules.
892 This increases the size of /boot/kernel to about 67Mbytes. You
893 will need twice this if you will eventually back this up to kernel.old
894 on your next install.
895 If you have a shortage of room in your root partition, you should add
896 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
897 to your /etc/make.conf.
900 libc's malloc implementation has been replaced. This change has the
901 potential to uncover application bugs that previously went unnoticed.
902 See the malloc(3) manual page for more details.
905 The generic netgraph(4) cookie has been changed. If you upgrade
906 kernel passing this point, you also need to upgrade userland
907 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
910 si(4)'s device files now contain the unit number.
911 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
914 The kernel ABI was mostly destroyed due to a change in the size
915 of struct lock_object which is nested in other structures such
916 as mutexes which are nested in all sorts of other structures.
917 Make sure your kernel and modules are in sync.
920 The page coloring algorithm in the VM subsystem was converted
921 from tuning with kernel options to autotuning. Please remove
922 any PQ_* option except PQ_NOOPT from your kernel config.
925 The net80211-related tools in the tools/tools/ath directory
926 have been moved to tools/tools/net80211 and renamed with a
927 "wlan" prefix. Scripts that use them should be adjusted
931 Scripts in the local_startup directories (as defined in
932 /etc/defaults/rc.conf) that have the new rc.d semantics will
933 now be run as part of the base system rcorder. If there are
934 errors or problems with one of these local scripts, it could
935 cause boot problems. If you encounter such problems, boot in
936 single user mode, remove that script from the */rc.d directory.
937 Please report the problem to the port's maintainer, and the
938 freebsd-ports@freebsd.org mailing list.
941 The nodev mount option was deprecated in RELENG_6 (where it
942 was a no-op), and is now unsupported. If you have nodev or dev listed
943 in /etc/fstab, remove it, otherwise it will result in a mount error.
946 ABI between ipfw(4) and ipfw(8) has been changed. You need
947 to rebuild ipfw(8) when rebuilding kernel.
950 rp(4)'s device files now contain the unit number.
951 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
954 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
955 Its /etc/rc.conf.d configuration file has been `ppp' from
956 the beginning, and hence there is no need to touch it.
959 Now most modules get their build-time options from the kernel
960 configuration file. A few modules still have fixed options
961 due to their non-conformant implementation, but they will be
962 corrected eventually. You may need to review the options of
963 the modules in use, explicitly specify the non-default options
964 in the kernel configuration file, and rebuild the kernel and
968 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
969 to turn polling(4) on your interfaces.
972 The old bridge(4) implementation was retired. The new
973 if_bridge(4) serves as a full functional replacement.
976 The ai_addrlen of a struct addrinfo was changed to a socklen_t
977 to conform to POSIX-2001. This change broke an ABI
978 compatibility on 64 bit architecture. You have to recompile
979 userland programs that use getaddrinfo(3) on 64 bit
983 RELENG_6 branched here.
986 The pccard_ifconfig rc.conf variable has been removed and a new
987 variable, ifconfig_DEFAULT has been introduced. Unlike
988 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
989 do not have ifconfig_ifn entries rather than just those in
990 removable_interfaces.
993 Some previous versions of PAM have permitted the use of
994 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
995 to third party PAM modules in /usr/local/lib. A change has been
996 made to require the use of absolute paths in order to avoid
997 ambiguity and dependence on library path configuration, which may
998 affect existing configurations.
1001 Major changes to network interface API. All drivers must be
1002 recompiled. Drivers not in the base system will need to be
1003 updated to the new APIs.
1006 Changes were made to kinfo_proc in sys/user.h. Please recompile
1007 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
1008 will not behave correctly.
1010 The API and ABI for hwpmc(4) have changed with the addition
1011 of sampling support. Please recompile lib/libpmc(3) and
1012 usr.sbin/{pmcstat,pmccontrol}.
1015 The OpenBSD dhclient was imported in place of the ISC dhclient
1016 and the network interface configuration scripts were updated
1017 accordingly. If you use DHCP to configure your interfaces, you
1018 must now run devd. Also, DNS updating was lost so you will need
1019 to find a workaround if you use this feature.
1021 The '_dhcp' user was added to support the OpenBSD dhclient. Be
1022 sure to run mergemaster -p (like you are supposed to do every time
1026 if_bridge was added to the tree. This has changed struct ifnet.
1027 Please recompile userland and all network related modules.
1030 The n_net of a struct netent was changed to an uint32_t, and
1031 1st argument of getnetbyaddr() was changed to an uint32_t, to
1032 conform to POSIX-2001. These changes broke an ABI
1033 compatibility on 64 bit architecture. With these changes,
1034 shlib major of libpcap was bumped. You have to recompile
1035 userland programs that use getnetbyaddr(3), getnetbyname(3),
1036 getnetent(3) and/or libpcap on 64 bit architecture.
1039 Kernel parsing of extra options on '#!' first lines of shell
1040 scripts has changed. Lines with multiple options likely will
1041 fail after this date. For full details, please see
1042 http://people.freebsd.org/~gad/Updating-20050528.txt
1045 The packet filter (pf) code has been updated to OpenBSD 3.7
1046 Please note the changed anchor syntax and the fact that
1047 authpf(8) now needs a mounted fdescfs(5) to function.
1050 The NO_MIXED_MODE kernel option has been removed from the i386
1051 amd64 platforms as its use has been superceded by the new local
1052 APIC timer code. Any kernel config files containing this option
1056 The on-disk format of LC_CTYPE files was changed to be machine
1057 independent. Please make sure NOT to use NO_CLEAN buildworld
1058 when crossing this point. Crossing this point also requires
1059 recompile or reinstall of all locale depended packages.
1062 The ifi_epoch member of struct if_data has been changed to
1063 contain the uptime at which the interface was created or the
1064 statistics zeroed rather then the wall clock time because
1065 wallclock time may go backwards. This should have no impact
1066 unless an snmp implementation is using this value (I know of
1067 none at this point.)
1070 The acpi_perf and acpi_throttle drivers are now part of the
1071 acpi(4) main module. They are no longer built separately.
1074 The layout of struct image_params has changed. You have to
1075 recompile all compatibility modules (linux, svr4, etc) for use
1076 with the new kernel.
1079 The p4tcc driver has been merged into cpufreq(4). This makes
1080 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
1081 compile in "device cpufreq" to restore this functionality.
1084 The responsibility of recomputing the file system summary of
1085 a SoftUpdates-enabled dirty volume has been transferred to the
1086 background fsck. A rebuild of fsck(8) utility is recommended
1087 if you have updated the kernel.
1089 To get the old behavior (recompute file system summary at mount
1090 time), you can set vfs.ffs.compute_summary_at_mount=1 before
1091 mounting the new volume.
1094 The cpufreq import is complete. As part of this, the sysctls for
1095 acpi(4) throttling have been removed. The power_profile script
1096 has been updated, so you can use performance/economy_cpu_freq in
1097 rc.conf(5) to set AC on/offline cpu frequencies.
1100 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
1101 requires recompiling libnetgraph and userland netgraph utilities.
1104 Support for abbreviated forms of a number of ipfw options is
1105 now deprecated. Warnings are printed to stderr indicating the
1106 correct full form when a match occurs. Some abbreviations may
1107 be supported at a later date based on user feedback. To be
1108 considered for support, abbreviations must be in use prior to
1109 this commit and unlikely to be confused with current key words.
1112 By a popular demand, a lot of NOFOO options were renamed
1113 to NO_FOO (see bsd.compat.mk for a full list). The old
1114 spellings are still supported, but will cause annoying
1115 warnings on stderr. Make sure you upgrade properly (see
1116 the COMMON ITEMS: section later in this file).
1119 Auto-loading of ancillary wlan modules such as wlan_wep has
1120 been temporarily disabled; you need to statically configure
1121 the modules you need into your kernel or explicitly load them
1122 prior to use. Specifically, if you intend to use WEP encryption
1123 with an 802.11 device load/configure wlan_wep; if you want to
1124 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
1125 and wlan_xauth as required.
1128 The behaviour of ppp(8) has changed slightly. If lqr is enabled
1129 (``enable lqr''), older versions would revert to LCP ECHO mode on
1130 negotiation failure. Now, ``enable echo'' is required for this
1131 behaviour. The ppp version number has been bumped to 3.4.2 to
1135 The wlan support has been updated to split the crypto support
1136 into separate modules. For static WEP you must configure the
1137 wlan_wep module in your system or build and install the module
1138 in place where it can be loaded (the kernel will auto-load
1139 the module when a wep key is configured).
1142 The ath driver has been updated to split the tx rate control
1143 algorithm into a separate module. You need to include either
1144 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
1147 Support for systems with an 80386 CPU has been removed. Please
1148 use FreeBSD 5.x or earlier on systems with an 80386.
1151 We have had a hack which would mount the root filesystem
1152 R/W if the device were named 'md*'. As part of the vnode
1153 work I'm doing I have had to remove this hack. People
1154 building systems which use preloaded MD root filesystems
1155 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
1156 their /etc/rc scripts.
1159 FreeBSD 5.3 shipped here.
1162 The size of struct tcpcb has changed again due to the removal
1163 of RFC1644 T/TCP. You have to recompile userland programs that
1164 read kmem for tcp sockets directly (netstat, sockstat, etc.)
1167 The size of struct tcpcb has changed. You have to recompile
1168 userland programs that read kmem for tcp sockets directly
1169 (netstat, sockstat, etc.)
1172 RELENG_5 branched here. For older entries, please see updating
1173 in the RELENG_5 branch.
1179 Avoid using make -j when upgrading. From time to time in the
1180 past there have been problems using -j with buildworld and/or
1181 installworld. This is especially true when upgrading between
1182 "distant" versions (eg one that cross a major release boundary
1183 or several minor releases, or when several months have passed
1184 on the -current branch).
1186 Sometimes, obscure build problems are the result of environment
1187 poisoning. This can happen because the make utility reads its
1188 environment when searching for values for global variables.
1189 To run your build attempts in an "environmental clean room",
1190 prefix all make commands with 'env -i '. See the env(1) manual
1191 page for more details.
1193 When upgrading from one major version to another it is generally
1194 best to upgrade to the latest code in the currently installed branch
1195 first, then do an upgrade to the new branch. This is the best-tested
1196 upgrade path, and has the highest probability of being successful.
1197 Please try this approach before reporting problems with a major
1202 If you are updating from a prior version of FreeBSD (even one just
1203 a few days old), you should follow this procedure. It is the most
1204 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
1206 make kernel-toolchain
1207 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
1208 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
1210 To test a kernel once
1211 ---------------------
1212 If you just want to boot a kernel once (because you are not sure
1213 if it works, or if you want to boot a known bad kernel to provide
1214 debugging information) run
1215 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
1216 nextboot -k testkernel
1218 To just build a kernel when you know that it won't mess you up
1219 --------------------------------------------------------------
1220 This assumes you are already running a 5.X system. Replace
1221 ${arch} with the architecture of your machine (e.g. "i386",
1222 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
1224 cd src/sys/${arch}/conf
1225 config KERNEL_NAME_HERE
1226 cd ../compile/KERNEL_NAME_HERE
1231 If this fails, go to the "To build a kernel" section.
1233 To rebuild everything and install it on the current system.
1234 -----------------------------------------------------------
1235 # Note: sometimes if you are running current you gotta do more than
1236 # is listed here if you are upgrading from a really old current.
1238 <make sure you have good level 0 dumps>
1240 make kernel KERNCONF=YOUR_KERNEL_HERE
1242 <reboot in single user> [3]
1250 To cross-install current onto a separate partition
1251 --------------------------------------------------
1252 # In this approach we use a separate partition to hold
1253 # current's root, 'usr', and 'var' directories. A partition
1254 # holding "/", "/usr" and "/var" should be about 2GB in
1257 <make sure you have good level 0 dumps>
1260 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1261 <maybe newfs current's root partition>
1262 <mount current's root partition on directory ${CURRENT_ROOT}>
1263 make installworld DESTDIR=${CURRENT_ROOT}
1264 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1265 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1266 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
1267 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1268 <reboot into current>
1269 <do a "native" rebuild/install as described in the previous section>
1270 <maybe install compatibility libraries from ports/misc/compat*>
1274 To upgrade in-place from 5.x-stable to current
1275 ----------------------------------------------
1276 <make sure you have good level 0 dumps>
1278 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
1280 <reboot in single user> [3]
1287 Make sure that you've read the UPDATING file to understand the
1288 tweaks to various things you need. At this point in the life
1289 cycle of current, things change often and you are on your own
1290 to cope. The defaults can also change, so please read ALL of
1291 the UPDATING entries.
1293 Also, if you are tracking -current, you must be subscribed to
1294 freebsd-current@freebsd.org. Make sure that before you update
1295 your sources that you have read and understood all the recent
1296 messages there. If in doubt, please track -stable which has
1297 much fewer pitfalls.
1299 [1] If you have third party modules, such as vmware, you
1300 should disable them at this point so they don't crash your
1303 [3] From the bootblocks, boot -s, and then do
1308 adjkerntz -i # if CMOS is wall time
1309 Also, when doing a major release upgrade, it is required that
1310 you boot into single user mode to do the installworld.
1312 [4] Note: This step is non-optional. Failure to do this step
1313 can result in a significant reduction in the functionality of the
1314 system. Attempting to do it by hand is not recommended and those
1315 that pursue this avenue should read this file carefully, as well
1316 as the archives of freebsd-current and freebsd-hackers mailing lists
1317 for potential gotchas.
1319 [5] Usually this step is a noop. However, from time to time
1320 you may need to do this if you get unknown user in the following
1321 step. It never hurts to do it all the time. You may need to
1322 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1323 install) after the buildworld before this step if you last updated
1324 from current before 20020224 or from -stable before 20020408.
1326 [8] In order to have a kernel that can run the 4.x binaries
1327 needed to do an installworld, you must include the COMPAT_FREEBSD4
1328 option in your kernel. Failure to do so may leave you with a system
1329 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
1330 is required to run the 5.x binaries on more recent kernels.
1332 Make sure that you merge any new devices from GENERIC since the
1333 last time you updated your kernel config file.
1335 [9] When checking out sources, you must include the -P flag to have
1336 cvs prune empty directories.
1338 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1339 "?=" instead of the "=" assignment operator, so that buildworld can
1340 override the CPUTYPE if it needs to.
1342 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1343 not on the command line, or in /etc/make.conf. buildworld will
1344 warn if it is improperly defined.
1347 This file contains a list, in reverse chronological order, of major
1348 breakages in tracking -current. Not all things will be listed here,
1349 and it only starts on October 16, 2004. Updating files can found in
1350 previous releases if your system is older than this.
1352 Copyright information:
1354 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
1356 Redistribution, publication, translation and use, with or without
1357 modification, in full or in part, in any form or format of this
1358 document are permitted without further permission from the author.
1360 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1361 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1362 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1363 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1364 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1365 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1366 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1367 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1368 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1369 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1370 POSSIBILITY OF SUCH DAMAGE.
1372 If you find this document useful, and you want to, you may buy the
1375 Contact Warner Losh if you have any questions about your use of