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 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
27 kernel modules referencing any of the above need to be recompiled.
28 Bump __FreeBSD_version to 800075.
31 GEOM_PART has become the default partition slicer for storage devices,
32 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
33 introduces some changes:
35 MSDOS/EBR: the devices created from MSDOS extended partition entries
36 (EBR) can be named differently than with GEOM_MBR and are now symlinks
37 to devices with offset-based names. fstabs may need to be modified.
39 BSD: the "geometry does not match label" warning is harmless in most
40 cases but it points to problems in file system misalignment with
41 disk geometry. The "c" partition is now implicit, covers the whole
42 top-level drive and cannot be (mis)used by users.
44 General: Kernel dumps are now not allowed to be written to devices
45 whose partition types indicate they are meant to be used for file
46 systems (or, in case of MSDOS partitions, as something else than
49 Most of these changes date approximately from 200812.
52 The uscanner(4) driver has been removed from the kernel. This follows
53 Linux removing theirs in 2.6 and making libusb the default interface
57 The multicast forwarding code has been cleaned up. netstat(1)
58 only relies on KVM now for printing bandwidth upcall meters.
59 The IPv4 and IPv6 modules are split into ip_mroute_mod and
60 ip6_mroute_mod respectively. The config(5) options for statically
61 compiling this code remain the same, i.e. 'options MROUTING'.
64 Support for the IFF_NEEDSGIANT network interface flag has been
65 removed, which means that non-MPSAFE network device drivers are no
66 longer supported. In particular, if_ar, if_sr, and network device
67 drivers from the old (legacy) USB stack can no longer be built or
71 POSIX.1 Native Language Support (NLS) has been enabled in libc and
72 a bunch of new language catalog files have also been added.
73 This means that some common libc messages are now localized and
74 they depend on the LC_MESSAGES environmental variable.
77 The k8temp(4) driver has been renamed to amdtemp(4) since
78 support for K10 and K11 CPU families was added.
81 IGMPv3 and Source-Specific Multicast (SSM) have been merged
82 to the IPv4 stack. VIMAGE hooks are in but not yet used.
84 For kernel developers, the most important changes are that the
85 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
86 and this lock has been downgraded to a non-recursive mutex.
88 Transport protocols (UDP, Raw IP) are now responsible for filtering
89 inbound multicast traffic according to group membership and source
90 filters. The imo_multicast_filter() KPI exists for this purpose.
91 Transports which do not use multicast (SCTP, TCP) already reject
92 multicast by default. Forwarding and receive performance may improve
93 as a mutex acquisition is no longer needed in the ip_input()
94 low-level input path. in_addmulti() and in_delmulti() are shimmed
95 to new KPIs which exist to support SSM in-kernel.
97 For application developers, it is recommended that loopback of
98 multicast datagrams be disabled for best performance, as this
99 will still cause the lock to be taken for each looped-back
100 datagram transmission. The net.inet.ip.mcast.loop sysctl may
101 be tuned to 0 to disable loopback by default; it defaults to 1
102 to preserve the existing behaviour.
104 For systems administrators, to obtain best performance with
105 multicast reception and multiple groups, it is always recommended
106 that a card with a suitably precise hash filter is used. Hash
107 collisions will still result in the lock being taken within the
108 transport protocol input path to check group membership.
110 If deploying FreeBSD in an environment with IGMP snooping switches,
111 it is recommended that the net.inet.igmp.sendlocal sysctl remain
112 enabled; this forces 224.0.0.0/24 group membership to be announced
115 The size of 'struct igmpstat' has changed; netstat needs to be
116 recompiled to reflect this.
117 Bump __FreeBSD_version to 800070.
120 libusb20.so.1 is now installed as libusb.so.1 and the ports system
121 updated to use it. This requires a buildworld/installworld in order to
122 update the library and dependencies (usbconfig, etc). Its advisable to
123 rebuild all ports which uses libusb. More specific directions are given
124 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
125 libusb are no longer required and can be removed.
128 A workaround is committed to allow the creation of System V shared
129 memory segment of size > 2 GB on the 64-bit architectures.
130 Due to a limitation of the existing ABI, the shm_segsz member
131 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
132 wrong for large segments. Note that limits must be explicitely
133 raised to allow such segments to be created.
136 The layout of struct ifnet has changed, requiring a rebuild of all
137 network device driver modules.
140 The /dev handling for the new USB stack has changed, a
141 buildworld/installworld is required for libusb20.
144 The new USB2 stack has now been permanently moved in and all kernel and
145 module names reverted to their previous values (eg, usb, ehci, ohci,
146 ums, ...). The old usb stack can be compiled in by prefixing the name
147 with the letter 'o', the old usb modules have been removed.
148 Updating entry 20090216 for xorg and 20090215 for libmap may still
152 The rc.conf(5) option if_up_delay has been renamed to
153 defaultroute_delay to better reflect its purpose. If you have
154 customized this setting in /etc/rc.conf you need to update it to
158 xorg 7.4 wants to configure its input devices via hald which does not
159 yet work with USB2. If the keyboard/mouse does not work in xorg then
161 Option "AllowEmptyInput" "off"
162 to your ServerLayout section. This will cause X to use the configured
163 kbd and mouse sections from your xorg.conf.
166 The GENERIC kernels for all architectures now default to the new USB2
167 stack. No kernel config options or code have been removed so if a
168 problem arises please report it and optionally revert to the old USB
169 stack. If you are loading USB kernel modules or have a custom kernel
170 that includes GENERIC then ensure that usb names are also changed over,
171 eg uftdi -> usb2_serial_ftdi.
173 Older programs linked against the ports libusb 0.1 need to be
174 redirected to the new stack's libusb20. /etc/libmap.conf can
176 # Map old usb library to new one for usb2 stack
177 libusb-0.1.so.8 libusb20.so.1
180 The ichsmb(4) driver has been changed to require SMBus slave
181 addresses be left-justified (xxxxxxx0b) rather than right-justified.
182 All of the other SMBus controller drivers require left-justified
183 slave addresses, so this change makes all the drivers provide the
187 INET6 statistics (struct ip6stat) was updated.
188 netstat(1) needs to be recompiled.
191 NTFS has been removed from GENERIC kernel on amd64 to match
192 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
193 will load ntfs.ko module automatically when NTFS support is
194 actually needed, unless ntfs.ko is not installed or security
195 level prohibits loading kernel modules. If either is the case,
196 "options NTFS" has to be added into kernel config.
199 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
200 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
201 800061. User space tools that rely on the size of struct tcpcb in
202 tcp_var.h (e.g. sockstat) need to be recompiled.
205 ng_tty(4) module updated to match the new TTY subsystem.
206 Due to API change, user-level applications must be updated.
207 New API support added to mpd5 CVS and expected to be present
208 in next mpd5.3 release.
211 With __FreeBSD_version 800060 the makefs tool is part of
212 the base system (it was a port).
215 The afdata and ifnet locks have been changed from mutexes to
216 rwlocks, network modules will need to be re-compiled.
219 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
220 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
221 The new code reduced struct rtentry{} by 16 bytes on 32-bit
222 architecture and 40 bytes on 64-bit architecture. The userland
223 applications "arp" and "ndp" have been updated accordingly.
224 The output from "netstat -r" shows only routing entries and
225 none of the L2 information.
228 __FreeBSD_version 800057 marks the switchover from the
229 binary ath hal to source code. Users must add the line:
231 options AH_SUPPORT_AR5416
233 to their kernel config files when specifying:
237 The ath_hal module no longer exists; the code is now compiled
238 together with the driver in the ath module. It is now
239 possible to tailor chip support (i.e. reduce the set of chips
240 and thereby the code size); consult ath_hal(4) for details.
243 __FreeBSD_version 800054 adds memory barriers to
244 <machine/atomic.h>, new interfaces to ifnet to facilitate
245 multiple hardware transmit queues for cards that support
246 them, and a lock-less ring-buffer implementation to
247 enable drivers to more efficiently manage queueing of
251 A new version of ZFS (version 13) has been merged to -HEAD.
252 This version has zpool attribute "listsnapshots" off by
253 default, which means "zfs list" does not show snapshots,
254 and is the same as Solaris behavior.
257 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
260 The uhci, ohci, ehci and slhci USB Host controller drivers have
261 been put into separate modules. If you load the usb module
262 separately through loader.conf you will need to load the
263 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
264 controller add the following to loader.conf:
270 The ABI used by the PMC toolset has changed. Please keep
271 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
275 The TTY subsystem of the kernel has been replaced by a new
276 implementation, which provides better scalability and an
277 improved driver model. Most common drivers have been migrated to
278 the new TTY subsystem, while others have not. The following
279 drivers have not yet been ported to the new TTY layer:
282 cy, digi, rc, rp, sio
288 ng_h4, ng_tty, ppp, sl, snp
290 Adding these drivers to your kernel configuration file shall
291 cause compilation to fail.
294 ntpd has been upgraded to 4.2.4p5.
297 OpenSSH has been upgraded to 5.1p1.
299 For many years, FreeBSD's version of OpenSSH preferred DSA
300 over RSA for host and user authentication keys. With this
301 upgrade, we've switched to the vendor's default of RSA over
302 DSA. This may cause upgraded clients to warn about unknown
303 host keys even for previously known hosts. Users should
304 follow the usual procedure for verifying host keys before
305 accepting the RSA key.
307 This can be circumvented by setting the "HostKeyAlgorithms"
308 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
311 Please note that the sequence of keys offered for
312 authentication has been changed as well. You may want to
313 specify IdentityFile in a different order to revert this
317 The sio(4) driver has been removed from the i386 and amd64
318 kernel configuration files. This means uart(4) is now the
319 default serial port driver on those platforms as well.
321 To prevent collisions with the sio(4) driver, the uart(4) driver
322 uses different names for its device nodes. This means the
323 onboard serial port will now most likely be called "ttyu0"
324 instead of "ttyd0". You may need to reconfigure applications to
325 use the new device names.
327 When using the serial port as a boot console, be sure to update
328 /boot/device.hints and /etc/ttys before booting the new kernel.
329 If you forget to do so, you can still manually specify the hints
330 at the loader prompt:
332 set hint.uart.0.at="isa"
333 set hint.uart.0.port="0x3F8"
334 set hint.uart.0.flags="0x10"
335 set hint.uart.0.irq="4"
339 The gpt(8) utility has been removed. Use gpart(8) to partition
343 The version that Linuxulator emulates was changed from 2.4.2
344 to 2.6.16. If you experience any problems with Linux binaries
345 please try to set sysctl compat.linux.osrelease to 2.4.2 and
346 if it fixes the problem contact emulation mailing list.
349 ISDN4BSD (I4B) was removed from the src tree. You may need to
350 update a your kernel configuration and remove relevant entries.
353 I have checked in code to support multiple routing tables.
354 See the man pages setfib(1) and setfib(2).
355 This is a hopefully backwards compatible version,
356 but to make use of it you need to compile your kernel
357 with options ROUTETABLES=2 (or more up to 16).
360 The 802.11 wireless support was redone to enable multi-bss
361 operation on devices that are capable. The underlying device
362 is no longer used directly but instead wlanX devices are
363 cloned with ifconfig. This requires changes to rc.conf files.
365 ifconfig_ath0="WPA DHCP"
368 ifconfig_wlan0="WPA DHCP"
369 see rc.conf(5) for more details. In addition, mergemaster of
370 /etc/rc.d is highly recommended. Simultaneous update of userland
371 and kernel wouldn't hurt either.
373 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
374 modules were merged into the base wlan module. All references
375 to these modules (e.g. in kernel config files) must be removed.
378 psm(4) has gained write(2) support in native operation level.
379 Arbitrary commands can be written to /dev/psm%d and status can
380 be read back from it. Therefore, an application is responsible
381 for status validation and error recovery. It is a no-op in
382 other operation levels.
385 Support for KSE threading has been removed from the kernel. To
386 run legacy applications linked against KSE libmap.conf may
387 be used. The following libmap.conf may be used to ensure
388 compatibility with any prior release:
390 libpthread.so.1 libthr.so.1
391 libpthread.so.2 libthr.so.2
392 libkse.so.3 libthr.so.3
395 The layout of struct vmspace has changed. This affects libkvm
396 and any executables that link against libkvm and use the
397 kvm_getprocs() function. In particular, but not exclusively,
398 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
399 The effects are minimal, but it's advisable to upgrade world
403 The latest em driver no longer has support in it for the
404 82575 adapter, this is now moved to the igb driver. The
405 split was done to make new features that are incompatible
406 with older hardware easier to do.
409 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
410 likewise the kernel option is now GEOM_LINUX_LVM.
413 The default NFS mount mode has changed from UDP to TCP for
414 increased reliability. If you rely on (insecurely) NFS
415 mounting across a firewall you may need to update your
419 Belatedly note the addition of m_collapse for compacting
423 The fts(3) structures have been changed to use adequate
424 integer types for their members and so to be able to cope
425 with huge file trees. The old fts(3) ABI is preserved
426 through symbol versioning in libc, so third-party binaries
427 using fts(3) should still work, although they will not take
428 advantage of the extended types. At the same time, some
429 third-party software might fail to build after this change
430 due to unportable assumptions made in its source code about
431 fts(3) structure members. Such software should be fixed
432 by its vendor or, in the worst case, in the ports tree.
433 FreeBSD_version 800015 marks this change for the unlikely
434 case that a portable fix is impossible.
437 To upgrade to -current after this date, you must be running
438 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
439 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
442 The ADAPTIVE_GIANT kernel option has been retired because its
443 functionality is the default now.
446 The AT keyboard emulation of sunkbd(4) has been turned on
447 by default. In order to make the special symbols of the Sun
448 keyboards driven by sunkbd(4) work under X these now have
449 to be configured the same way as Sun USB keyboards driven
450 by ukbd(4) (which also does AT keyboard emulation), f.e.:
452 Option "XkbLayout" "us"
453 Option "XkbRules" "xorg"
454 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
457 It has been decided that it is desirable to provide ABI
458 backwards compatibility to the FreeBSD 4/5/6 versions of the
459 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
460 broken with the introduction of PCI domain support (see the
461 20070930 entry). Unfortunately, this required the ABI of
462 PCIOCGETCONF to be broken again in order to be able to
463 provide backwards compatibility to the old version of that
464 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
465 again. As for prominent ports this affects neither pciutils
466 nor xorg-server this time, the hal port needs to be rebuilt
470 The misnamed kthread_create() and friends have been renamed
471 to kproc_create() etc. Many of the callers already
473 I will return kthread_create() and friends in a while
474 with implementations that actually create threads, not procs.
475 Renaming corresponds with version 800002.
481 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
482 WITHOUT_LIBTHR are set.
485 The PCI code has been made aware of PCI domains. This means that
486 the location strings as used by pciconf(8) etc are now in the
487 following format: pci<domain>:<bus>:<device>[:<function>]. It
488 also means that consumers of <sys/pciio.h> potentially need to
489 be recompiled; this includes the hal and xorg-server ports.
492 The caching daemon (cached) was renamed to nscd. nscd.conf
493 configuration file should be used instead of cached.conf and
494 nscd_enable, nscd_pidfile and nscd_flags options should be used
495 instead of cached_enable, cached_pidfile and cached_flags in
499 The getfacl(1) utility now prints owning user and group name
500 instead of owning uid and gid in the three line comment header.
501 This is the same behavior as getfacl(1) on Solaris and Linux.
504 The new IPsec code is now compiled in using the IPSEC option. The
505 IPSEC option now requires "device crypto" be defined in your kernel
506 configuration. The FAST_IPSEC kernel option is now deprecated.
509 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
510 note the changed syntax - keep state is now on by default. Also
511 note the fact that ftp-proxy(8) has been changed from bottom up and
512 has been moved from libexec to usr/sbin. Changes in the ALTQ
513 handling also affect users of IPFW's ALTQ capabilities.
516 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
517 only IPsec supported by FreeBSD. The new IPsec stack
518 supports both IPv4 and IPv6. The kernel option will change
519 after the code changes have settled in. For now the kernel
520 option IPSEC is deprecated and FAST_IPSEC is the only option, that
521 will change after some settling time.
524 The wicontrol(8) utility has been removed from the base system. wi(4)
525 cards should be configured using ifconfig(8), see the man page for more
529 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
530 instead of the nve(4) driver. Please update your configuration
534 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
535 database if it is missing or older than the aliases file. If
536 desired, set the new rc.conf option sendmail_rebuild_aliases
537 to "YES" to restore that functionality.
540 The IPv4 multicast socket code has been considerably modified, and
541 moved to the file sys/netinet/in_mcast.c. Initial support for the
542 RFC 3678 Source-Specific Multicast Socket API has been added to
543 the IPv4 network stack.
545 Strict multicast and broadcast reception is now the default for
546 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
547 has now been removed.
549 The RFC 1724 hack for interface selection has been removed; the use
550 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
551 been added to replace it. Consumers such as routed will soon be
552 updated to reflect this.
554 These changes affect users who are running routed(8) or rdisc(8)
555 from the FreeBSD base system on point-to-point or unnumbered
559 The net80211 layer has changed significantly and all wireless
560 drivers that depend on it need to be recompiled. Further these
561 changes require that any program that interacts with the wireless
562 support in the kernel be recompiled; this includes: ifconfig,
563 wpa_supplicant, hostapd, and wlanstats. Users must also, for
564 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
565 if they use modules for wireless support. These modules implement
566 scanning support for station and ap modes, respectively. Failure
567 to load the appropriate module before marking a wireless interface
568 up will result in a message to the console and the device not
572 The pam_nologin(8) module ceases to provide an authentication
573 function and starts providing an account management function.
574 Consequent changes to /etc/pam.d should be brought in using
575 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
576 need manual editing as follows. Locate this line (or similar):
578 auth required pam_nologin.so no_warn
580 and change it according to this example:
582 account required pam_nologin.so no_warn
584 That is, the first word needs to be changed from "auth" to
585 "account". The new line can be moved to the account section
586 within the file for clarity. Not updating pam.conf(5) files
587 will result in nologin(5) ignored by the respective services.
590 The ether_ioctl() function has been synchronized with ioctl(2)
591 and ifnet.if_ioctl. Due to that, the size of one of its arguments
592 has changed on 64-bit architectures. All kernel modules using
593 ether_ioctl() need to be rebuilt on such architectures.
596 Improved INCLUDE_CONFIG_FILE support has been introduced to the
597 config(8) utility. In order to take advantage of this new
598 functionality, you are expected to recompile and install
599 src/usr.sbin/config. If you don't rebuild config(8), and your
600 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
601 build will be broken because of a missing "kernconfstring"
605 Symbol versioning is enabled by default. To disable it, use
606 option WITHOUT_SYMVER. It is not advisable to attempt to
607 disable symbol versioning once it is enabled; your installworld
608 will break because a symbol version-less libc will get installed
609 before the install tools. As a result, the old install tools,
610 which previously had symbol dependencies to FBSD_1.0, will fail
611 because the freshly installed libc will not have them.
613 The default threading library (providing "libpthread") has been
614 changed to libthr. If you wish to have libkse as your default,
615 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
618 The ABI breakage in sendmail(8)'s libmilter has been repaired
619 so it is no longer necessary to recompile mail filters (aka,
620 milters). If you recompiled mail filters after the 20070408
621 note, it is not necessary to recompile them again.
624 The new trunk(4) driver has been renamed to lagg(4) as it better
625 reflects its purpose. ifconfig will need to be recompiled.
628 sendmail(8) has been updated to version 8.14.1. Mail filters
629 (aka, milters) compiled against the libmilter included in the
630 base operating system should be recompiled.
633 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
634 In order to use them one must agree to the respective LICENSE in
635 share/doc/legal and define legal.intel_<name>.license_ack=1 via
636 loader.conf(5) or kenv(1). Make sure to deinstall the now
637 deprecated modules from the respective firmware ports.
640 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
641 were removed from FreeBSD's libc. These originally came from INRIA
642 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
643 deprecated in previous releases.
644 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
645 replace it as a more portable (and re-entrant) API.
648 To support interrupt filtering a modification to the newbus API
649 has occurred, ABI was broken and __FreeBSD_version was bumped
650 to 700031. Please make sure that your kernel and modules are in
652 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
655 The IPv6 multicast forwarding code may now be loaded into GENERIC
656 kernels by loading the ip_mroute.ko module. This is built into the
657 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
658 set; see src.conf(5) for more information.
661 The output of netstat -r has changed. Without -n, we now only
662 print a "network name" without the prefix length if the network
663 address and mask exactly match a Class A/B/C network, and an entry
664 exists in the nsswitch "networks" map.
665 With -n, we print the full unabbreviated CIDR network prefix in
666 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
667 This change is in preparation for changes such as equal-cost
668 multipath, and to more generally assist operational deployment
669 of FreeBSD as a modern IPv4 router.
672 PIM has been turned on by default in the IPv4 multicast
673 routing code. The kernel option 'PIM' has now been removed.
674 PIM is now built by default if option 'MROUTING' is specified.
675 It may now be loaded into GENERIC kernels by loading the
679 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
680 has been removed. Its functionality may be achieved by explicitly
681 configuring gif(4) interfaces and using the 'phyint' keyword in
683 XORP does not support source-routed IPv4 multicast tunnels nor the
684 integrated IPIP tunneling, therefore it is not affected by this
685 change. The __FreeBSD_version macro has been bumped to 700030.
688 Support for PCI Message Signalled Interrupts has been
689 re-enabled in the bge driver, only for those chips which are
690 believed to support it properly. If there are any problems,
691 MSI can be disabled completely by setting the
692 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
696 Support for PCI Message Signalled Interrupts has been
697 disabled again in the bge driver. Many revisions of the
698 hardware fail to support it properly. Support can be
699 re-enabled by removing the #define of BGE_DISABLE_MSI in
700 "src/sys/dev/bge/if_bge.c".
703 Support for PCI Message Signalled Interrupts has been added
704 to the bge driver. If there are any problems, MSI can be
705 disabled completely by setting the 'hw.pci.enable_msi' and
706 'hw.pci.enable_msix' tunables to 0 in the loader.
709 The removal of several facets of the experimental Threading
710 system from the kernel means that the proc and thread structures
711 have changed quite a bit. I suggest all kernel modules that might
712 reference these structures be recompiled.. Especially the
716 Sound infrastructure has been updated with various fixes and
717 improvements. Most of the changes are pretty much transparent,
718 with exceptions of followings:
719 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
720 moved to their own dev sysctl nodes, for example:
721 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
722 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
723 own chardev in the form of "dsp%d.<function>%d", where <function>
724 is p = playback, r = record and v = virtual, respectively. Users
725 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
726 This does not affect those who are using "/dev/dsp".
729 geom(4)'s gmirror(8) class metadata structure has been
730 rev'd from v3 to v4. If you update across this point and
731 your metadata is converted for you, you will not be easily
732 able to downgrade since the /boot/kernel.old/geom_mirror.ko
733 kernel module will be unable to read the v4 metadata. You
734 can resolve this by doing from the loader(8) prompt:
736 set vfs.root.mountfrom="ufs:/dev/XXX"
738 where XXX is the root slice of one of the disks that composed
739 the mirror (i.e.: /dev/ad0s1a). You can then rebuild
740 the array the same way you built it originally.
743 The following binaries have been disconnected from the build:
744 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
745 and mount_std. The functionality of these programs has been
746 moved into the mount program. For example, to mount a devfs
747 filesystem, instead of using mount_devfs, use: "mount -t devfs".
748 This does not affect entries in /etc/fstab, since entries in
749 /etc/fstab are always processed with "mount -t fstype".
752 Support for PCI Message Signalled Interrupts on i386 and amd64
753 has been added to the kernel and various drivers will soon be
754 updated to use MSI when it is available. If there are any problems,
755 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
756 and 'hw.pci.enable_msix' tunables to 0 in the loader.
759 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
760 The lockmgr object layout has been changed as a result of having
761 a lock_object embedded in it. As a consequence all file system
762 kernel modules must be re-compiled. The mutex profiling man page
763 has not yet been updated to reflect this change.
766 KSE in the kernel has now been made optional and turned on by
767 default. Use 'nooption KSE' in your kernel config to turn it
768 off. All kernel modules *must* be recompiled after this change.
769 There-after, modules from a KSE kernel should be compatible with
770 modules from a NOKSE kernel due to the temporary padding fields
771 added to 'struct proc'.
774 mrouted and its utilities have been removed from the base system.
777 Some ioctl(2) command codes have changed. Full backward ABI
778 compatibility is provided if the "options COMPAT_FREEBSD6" is
779 present in the kernel configuration file. Make sure to add
780 this option to your kernel config file, or recompile X.Org
781 and the rest of ports; otherwise they may refuse to work.
784 tcpslice has been removed from the base system.
787 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
788 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
789 systat needs to be rebuilt.
792 libpcap updated to v0.9.4 and tcpdump to v3.9.4
795 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
796 for IPFIREWALL_FORWARD is now as it was before when it was first
797 committed and for years after. The behaviour is now ON.
800 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
801 Now it can decrypt files created from different architectures.
802 Unfortunately, it is no longer able to decrypt a cipher text
803 generated with an older version on 64 bit architectures.
804 If you have such a file, you need old utility to decrypt it.
807 The interface version of the i4b kernel part has changed. So
808 after updating the kernel sources and compiling a new kernel,
809 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
810 be rebuilt, and vice versa.
813 The XBOX kernel now defaults to the nfe(4) driver instead of
814 the nve(4) driver. Please update your configuration
818 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
819 PCnet family of NICs has been removed. The new le(4) driver serves
820 as an equivalent but cross-platform replacement with the pcn(4)
821 driver still providing performance-optimized support for the subset
822 of AMD Am79C971 PCnet-FAST and greater chips as before.
825 The machdep.* sysctls and the adjkerntz utility have been
826 modified a bit. The new adjkerntz utility uses the new
827 sysctl names and sysctlbyname() calls, so it may be impossible
828 to run an old /sbin/adjkerntz utility in single-user mode
829 with a new kernel. Replace the `adjkerntz -i' step before
830 `make installworld' with:
832 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
834 and proceed as usual with the rest of the installworld-stage
835 steps. Otherwise, you risk installing binaries with their
836 timestamp set several hours in the future, especially if
837 you are running with local time set to GMT+X hours.
840 The ip6fw utility has been removed. The behavior provided by
841 ip6fw has been in ipfw2 for a good while and the rc.d scripts
842 have been updated to deal with it. There are some rules that
843 might not migrate cleanly. Use rc.firewall6 as a template to
847 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
848 attachments have been removed. Make sure to configure scc(4)
849 on sparc64. Note also that by default puc(4) will use uart(4)
850 and not sio(4) for serial ports because interrupt handling has
851 been optimized for multi-port serial cards and only uart(4)
852 implements the interface to support it.
855 The scc(4) driver replaces puc(4) for Serial Communications
856 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
857 Z8530. On sparc64, it is advised to add scc(4) to the kernel
858 configuration to make sure that the serial ports remain
862 Most world/kernel related NO_* build options changed names.
863 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
864 after FreeBSD ports) and should be set in /etc/src.conf
865 (the src.conf(5) manpage is provided). Full backwards
866 compatibility is maintained for the time being though it's
867 highly recommended to start moving old options out of the
868 system-wide /etc/make.conf file into the new /etc/src.conf
869 while also properly renaming them. More conversions will
870 likely follow. Posting to current@:
872 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
875 The NETSMBCRYPTO kernel option has been retired because its
876 functionality is always included in NETSMB and smbfs.ko now.
879 The TDFX_LINUX kernel option was retired and replaced by the
880 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
881 kernel module. Loading it alone should suffice to get 3dfx support
882 for Linux apps because it will pull in 3dfx.ko and linux.ko through
886 The 'audit' group was added to support the new auditing functionality
887 in the base system. Be sure to follow the directions for updating,
888 including the requirement to run mergemaster -p.
891 The kernel ABI to file system modules was changed on i386.
892 Please make sure that your kernel and modules are in sync.
895 This actually occured some time ago, but installing the kernel
896 now also installs a bunch of symbol files for the kernel modules.
897 This increases the size of /boot/kernel to about 67Mbytes. You
898 will need twice this if you will eventually back this up to kernel.old
899 on your next install.
900 If you have a shortage of room in your root partition, you should add
901 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
902 to your /etc/make.conf.
905 libc's malloc implementation has been replaced. This change has the
906 potential to uncover application bugs that previously went unnoticed.
907 See the malloc(3) manual page for more details.
910 The generic netgraph(4) cookie has been changed. If you upgrade
911 kernel passing this point, you also need to upgrade userland
912 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
915 si(4)'s device files now contain the unit number.
916 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
919 The kernel ABI was mostly destroyed due to a change in the size
920 of struct lock_object which is nested in other structures such
921 as mutexes which are nested in all sorts of other structures.
922 Make sure your kernel and modules are in sync.
925 The page coloring algorithm in the VM subsystem was converted
926 from tuning with kernel options to autotuning. Please remove
927 any PQ_* option except PQ_NOOPT from your kernel config.
930 The net80211-related tools in the tools/tools/ath directory
931 have been moved to tools/tools/net80211 and renamed with a
932 "wlan" prefix. Scripts that use them should be adjusted
936 Scripts in the local_startup directories (as defined in
937 /etc/defaults/rc.conf) that have the new rc.d semantics will
938 now be run as part of the base system rcorder. If there are
939 errors or problems with one of these local scripts, it could
940 cause boot problems. If you encounter such problems, boot in
941 single user mode, remove that script from the */rc.d directory.
942 Please report the problem to the port's maintainer, and the
943 freebsd-ports@freebsd.org mailing list.
946 The nodev mount option was deprecated in RELENG_6 (where it
947 was a no-op), and is now unsupported. If you have nodev or dev listed
948 in /etc/fstab, remove it, otherwise it will result in a mount error.
951 ABI between ipfw(4) and ipfw(8) has been changed. You need
952 to rebuild ipfw(8) when rebuilding kernel.
955 rp(4)'s device files now contain the unit number.
956 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
959 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
960 Its /etc/rc.conf.d configuration file has been `ppp' from
961 the beginning, and hence there is no need to touch it.
964 Now most modules get their build-time options from the kernel
965 configuration file. A few modules still have fixed options
966 due to their non-conformant implementation, but they will be
967 corrected eventually. You may need to review the options of
968 the modules in use, explicitly specify the non-default options
969 in the kernel configuration file, and rebuild the kernel and
973 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
974 to turn polling(4) on your interfaces.
977 The old bridge(4) implementation was retired. The new
978 if_bridge(4) serves as a full functional replacement.
981 The ai_addrlen of a struct addrinfo was changed to a socklen_t
982 to conform to POSIX-2001. This change broke an ABI
983 compatibility on 64 bit architecture. You have to recompile
984 userland programs that use getaddrinfo(3) on 64 bit
988 RELENG_6 branched here.
991 The pccard_ifconfig rc.conf variable has been removed and a new
992 variable, ifconfig_DEFAULT has been introduced. Unlike
993 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
994 do not have ifconfig_ifn entries rather than just those in
995 removable_interfaces.
998 Some previous versions of PAM have permitted the use of
999 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
1000 to third party PAM modules in /usr/local/lib. A change has been
1001 made to require the use of absolute paths in order to avoid
1002 ambiguity and dependence on library path configuration, which may
1003 affect existing configurations.
1006 Major changes to network interface API. All drivers must be
1007 recompiled. Drivers not in the base system will need to be
1008 updated to the new APIs.
1011 Changes were made to kinfo_proc in sys/user.h. Please recompile
1012 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
1013 will not behave correctly.
1015 The API and ABI for hwpmc(4) have changed with the addition
1016 of sampling support. Please recompile lib/libpmc(3) and
1017 usr.sbin/{pmcstat,pmccontrol}.
1020 The OpenBSD dhclient was imported in place of the ISC dhclient
1021 and the network interface configuration scripts were updated
1022 accordingly. If you use DHCP to configure your interfaces, you
1023 must now run devd. Also, DNS updating was lost so you will need
1024 to find a workaround if you use this feature.
1026 The '_dhcp' user was added to support the OpenBSD dhclient. Be
1027 sure to run mergemaster -p (like you are supposed to do every time
1031 if_bridge was added to the tree. This has changed struct ifnet.
1032 Please recompile userland and all network related modules.
1035 The n_net of a struct netent was changed to an uint32_t, and
1036 1st argument of getnetbyaddr() was changed to an uint32_t, to
1037 conform to POSIX-2001. These changes broke an ABI
1038 compatibility on 64 bit architecture. With these changes,
1039 shlib major of libpcap was bumped. You have to recompile
1040 userland programs that use getnetbyaddr(3), getnetbyname(3),
1041 getnetent(3) and/or libpcap on 64 bit architecture.
1044 Kernel parsing of extra options on '#!' first lines of shell
1045 scripts has changed. Lines with multiple options likely will
1046 fail after this date. For full details, please see
1047 http://people.freebsd.org/~gad/Updating-20050528.txt
1050 The packet filter (pf) code has been updated to OpenBSD 3.7
1051 Please note the changed anchor syntax and the fact that
1052 authpf(8) now needs a mounted fdescfs(5) to function.
1055 The NO_MIXED_MODE kernel option has been removed from the i386
1056 amd64 platforms as its use has been superceded by the new local
1057 APIC timer code. Any kernel config files containing this option
1061 The on-disk format of LC_CTYPE files was changed to be machine
1062 independent. Please make sure NOT to use NO_CLEAN buildworld
1063 when crossing this point. Crossing this point also requires
1064 recompile or reinstall of all locale depended packages.
1067 The ifi_epoch member of struct if_data has been changed to
1068 contain the uptime at which the interface was created or the
1069 statistics zeroed rather then the wall clock time because
1070 wallclock time may go backwards. This should have no impact
1071 unless an snmp implementation is using this value (I know of
1072 none at this point.)
1075 The acpi_perf and acpi_throttle drivers are now part of the
1076 acpi(4) main module. They are no longer built separately.
1079 The layout of struct image_params has changed. You have to
1080 recompile all compatibility modules (linux, svr4, etc) for use
1081 with the new kernel.
1084 The p4tcc driver has been merged into cpufreq(4). This makes
1085 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
1086 compile in "device cpufreq" to restore this functionality.
1089 The responsibility of recomputing the file system summary of
1090 a SoftUpdates-enabled dirty volume has been transferred to the
1091 background fsck. A rebuild of fsck(8) utility is recommended
1092 if you have updated the kernel.
1094 To get the old behavior (recompute file system summary at mount
1095 time), you can set vfs.ffs.compute_summary_at_mount=1 before
1096 mounting the new volume.
1099 The cpufreq import is complete. As part of this, the sysctls for
1100 acpi(4) throttling have been removed. The power_profile script
1101 has been updated, so you can use performance/economy_cpu_freq in
1102 rc.conf(5) to set AC on/offline cpu frequencies.
1105 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
1106 requires recompiling libnetgraph and userland netgraph utilities.
1109 Support for abbreviated forms of a number of ipfw options is
1110 now deprecated. Warnings are printed to stderr indicating the
1111 correct full form when a match occurs. Some abbreviations may
1112 be supported at a later date based on user feedback. To be
1113 considered for support, abbreviations must be in use prior to
1114 this commit and unlikely to be confused with current key words.
1117 By a popular demand, a lot of NOFOO options were renamed
1118 to NO_FOO (see bsd.compat.mk for a full list). The old
1119 spellings are still supported, but will cause annoying
1120 warnings on stderr. Make sure you upgrade properly (see
1121 the COMMON ITEMS: section later in this file).
1124 Auto-loading of ancillary wlan modules such as wlan_wep has
1125 been temporarily disabled; you need to statically configure
1126 the modules you need into your kernel or explicitly load them
1127 prior to use. Specifically, if you intend to use WEP encryption
1128 with an 802.11 device load/configure wlan_wep; if you want to
1129 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
1130 and wlan_xauth as required.
1133 The behaviour of ppp(8) has changed slightly. If lqr is enabled
1134 (``enable lqr''), older versions would revert to LCP ECHO mode on
1135 negotiation failure. Now, ``enable echo'' is required for this
1136 behaviour. The ppp version number has been bumped to 3.4.2 to
1140 The wlan support has been updated to split the crypto support
1141 into separate modules. For static WEP you must configure the
1142 wlan_wep module in your system or build and install the module
1143 in place where it can be loaded (the kernel will auto-load
1144 the module when a wep key is configured).
1147 The ath driver has been updated to split the tx rate control
1148 algorithm into a separate module. You need to include either
1149 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
1152 Support for systems with an 80386 CPU has been removed. Please
1153 use FreeBSD 5.x or earlier on systems with an 80386.
1156 We have had a hack which would mount the root filesystem
1157 R/W if the device were named 'md*'. As part of the vnode
1158 work I'm doing I have had to remove this hack. People
1159 building systems which use preloaded MD root filesystems
1160 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
1161 their /etc/rc scripts.
1164 FreeBSD 5.3 shipped here.
1167 The size of struct tcpcb has changed again due to the removal
1168 of RFC1644 T/TCP. You have to recompile userland programs that
1169 read kmem for tcp sockets directly (netstat, sockstat, etc.)
1172 The size of struct tcpcb has changed. You have to recompile
1173 userland programs that read kmem for tcp sockets directly
1174 (netstat, sockstat, etc.)
1177 RELENG_5 branched here. For older entries, please see updating
1178 in the RELENG_5 branch.
1184 Avoid using make -j when upgrading. From time to time in the
1185 past there have been problems using -j with buildworld and/or
1186 installworld. This is especially true when upgrading between
1187 "distant" versions (eg one that cross a major release boundary
1188 or several minor releases, or when several months have passed
1189 on the -current branch).
1191 Sometimes, obscure build problems are the result of environment
1192 poisoning. This can happen because the make utility reads its
1193 environment when searching for values for global variables.
1194 To run your build attempts in an "environmental clean room",
1195 prefix all make commands with 'env -i '. See the env(1) manual
1196 page for more details.
1198 When upgrading from one major version to another it is generally
1199 best to upgrade to the latest code in the currently installed branch
1200 first, then do an upgrade to the new branch. This is the best-tested
1201 upgrade path, and has the highest probability of being successful.
1202 Please try this approach before reporting problems with a major
1207 If you are updating from a prior version of FreeBSD (even one just
1208 a few days old), you should follow this procedure. It is the most
1209 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
1211 make kernel-toolchain
1212 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
1213 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
1215 To test a kernel once
1216 ---------------------
1217 If you just want to boot a kernel once (because you are not sure
1218 if it works, or if you want to boot a known bad kernel to provide
1219 debugging information) run
1220 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
1221 nextboot -k testkernel
1223 To just build a kernel when you know that it won't mess you up
1224 --------------------------------------------------------------
1225 This assumes you are already running a 5.X system. Replace
1226 ${arch} with the architecture of your machine (e.g. "i386",
1227 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
1229 cd src/sys/${arch}/conf
1230 config KERNEL_NAME_HERE
1231 cd ../compile/KERNEL_NAME_HERE
1236 If this fails, go to the "To build a kernel" section.
1238 To rebuild everything and install it on the current system.
1239 -----------------------------------------------------------
1240 # Note: sometimes if you are running current you gotta do more than
1241 # is listed here if you are upgrading from a really old current.
1243 <make sure you have good level 0 dumps>
1245 make kernel KERNCONF=YOUR_KERNEL_HERE
1247 <reboot in single user> [3]
1255 To cross-install current onto a separate partition
1256 --------------------------------------------------
1257 # In this approach we use a separate partition to hold
1258 # current's root, 'usr', and 'var' directories. A partition
1259 # holding "/", "/usr" and "/var" should be about 2GB in
1262 <make sure you have good level 0 dumps>
1265 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1266 <maybe newfs current's root partition>
1267 <mount current's root partition on directory ${CURRENT_ROOT}>
1268 make installworld DESTDIR=${CURRENT_ROOT}
1269 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1270 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1271 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
1272 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1273 <reboot into current>
1274 <do a "native" rebuild/install as described in the previous section>
1275 <maybe install compatibility libraries from ports/misc/compat*>
1279 To upgrade in-place from 5.x-stable to current
1280 ----------------------------------------------
1281 <make sure you have good level 0 dumps>
1283 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
1285 <reboot in single user> [3]
1292 Make sure that you've read the UPDATING file to understand the
1293 tweaks to various things you need. At this point in the life
1294 cycle of current, things change often and you are on your own
1295 to cope. The defaults can also change, so please read ALL of
1296 the UPDATING entries.
1298 Also, if you are tracking -current, you must be subscribed to
1299 freebsd-current@freebsd.org. Make sure that before you update
1300 your sources that you have read and understood all the recent
1301 messages there. If in doubt, please track -stable which has
1302 much fewer pitfalls.
1304 [1] If you have third party modules, such as vmware, you
1305 should disable them at this point so they don't crash your
1308 [3] From the bootblocks, boot -s, and then do
1313 adjkerntz -i # if CMOS is wall time
1314 Also, when doing a major release upgrade, it is required that
1315 you boot into single user mode to do the installworld.
1317 [4] Note: This step is non-optional. Failure to do this step
1318 can result in a significant reduction in the functionality of the
1319 system. Attempting to do it by hand is not recommended and those
1320 that pursue this avenue should read this file carefully, as well
1321 as the archives of freebsd-current and freebsd-hackers mailing lists
1322 for potential gotchas.
1324 [5] Usually this step is a noop. However, from time to time
1325 you may need to do this if you get unknown user in the following
1326 step. It never hurts to do it all the time. You may need to
1327 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1328 install) after the buildworld before this step if you last updated
1329 from current before 20020224 or from -stable before 20020408.
1331 [8] In order to have a kernel that can run the 4.x binaries
1332 needed to do an installworld, you must include the COMPAT_FREEBSD4
1333 option in your kernel. Failure to do so may leave you with a system
1334 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
1335 is required to run the 5.x binaries on more recent kernels.
1337 Make sure that you merge any new devices from GENERIC since the
1338 last time you updated your kernel config file.
1340 [9] When checking out sources, you must include the -P flag to have
1341 cvs prune empty directories.
1343 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1344 "?=" instead of the "=" assignment operator, so that buildworld can
1345 override the CPUTYPE if it needs to.
1347 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1348 not on the command line, or in /etc/make.conf. buildworld will
1349 warn if it is improperly defined.
1352 This file contains a list, in reverse chronological order, of major
1353 breakages in tracking -current. Not all things will be listed here,
1354 and it only starts on October 16, 2004. Updating files can found in
1355 previous releases if your system is older than this.
1357 Copyright information:
1359 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
1361 Redistribution, publication, translation and use, with or without
1362 modification, in full or in part, in any form or format of this
1363 document are permitted without further permission from the author.
1365 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1366 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1367 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1368 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1369 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1370 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1371 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1372 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1373 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1374 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1375 POSSIBILITY OF SUCH DAMAGE.
1377 If you find this document useful, and you want to, you may buy the
1380 Contact Warner Losh if you have any questions about your use of