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 ON IA64 OR SUN4V:
12 For ia64 the INVARIANTS and INVARIANT_SUPPORT kernel options
13 were left in the GENERIC kernel because the kernel does not
14 work properly without them. For sun4v all of the normal kernel
15 debugging tools present in HEAD were left in place because
16 sun4v support still needs work to become production ready.
18 20100526: p3 FreeBSD-SA-10:04.jail, FreeBSD-SA-10:05.opie,
19 FreeBSD-SA-10:06.nfsclient
20 Change the current working directory to be inside the jail created by
21 the jail(8) command. [10:04]
23 Fix a one-NUL-byte buffer overflow in libopie. [10:05]
25 Correctly sanity-check a buffer length in nfs mount. [10:06]
27 20100106: p2 FreeBSD-SA-10:01.bind, FreeBSD-SA-10:02.ntpd,
28 FreeBSD-SA-10:03.zfs, FreeBSD-EN-10:01.freebsd
29 Fix BIND named(8) cache poisoning with DNSSEC validation.
32 Fix ntpd mode 7 denial of service. [SA-10:02]
34 Fix ZFS ZIL playback with insecure permissions. [SA-10:03]
36 Various FreeBSD 8.0-RELEASE improvements. [EN-10:01]
38 20091203: p1 FreeBSD-SA-09:15.ssl, FreeBSD-SA-09:16.rtld,
39 FreeBSD-SA-09:17.freebsd-update
40 Disable SSL renegotiation in order to protect against a serious
41 protocol flaw. [09:15]
43 Correctly handle failures from unsetenv resulting from a corrupt
44 environment in rtld-elf. [09:16]
46 Fix permissions in freebsd-update in order to prevent leakage of
47 sensitive files. [09:17]
53 802.11s D3.03 support was committed. This is incompatible with
54 the previous code, which was based on D3.0.
57 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
58 mount(8) and -a option for df(1) to see them.
61 Remove the option STOP_NMI. The default action is now to use NMI
62 only for KDB via the newly introduced function stop_cpus_hard()
63 and maintain stop_cpus() to just use a normal IPI_STOP on ia32
70 Bump the shared library version numbers for all libraries that
71 do not use symbol versioning as part of the 8.0-RELEASE cycle.
72 Bump __FreeBSD_version to 800105.
75 Due to changes in the implementation of virtual network stack
76 support, all network-related kernel modules must be recompiled.
77 As this change breaks the ABI, bump __FreeBSD_version to 800104.
80 The TOE interface to the TCP syncache has been modified to remove struct
81 tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. The
82 cxgb driver is the only TOE consumer affected by this change, and needs
83 to be recompiled along with the kernel. As this change breaks the ABI,
84 bump __FreeBSD_version to 800103.
87 Padding has been added to struct tcpcb, sackhint and tcpstat in
88 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
89 maintainig the ABI. However, this change breaks the ABI, so bump
90 __FreeBSD_version to 800102. User space tools that rely on the size of
91 any of these structs (e.g. sockstat) need to be recompiled.
94 The NFS_LEGACYRPC option has been removed along with the old
95 kernel RPC implementation that this option selected. Kernel
96 configurations may need to be adjusted.
99 The network interface device nodes at /dev/net/<interface> have
100 been removed. All ioctl operations can be performed the normal
101 way using routing sockets. The kqueue functionality can
102 generally be replaced with routing sockets.
105 The documentation from the FreeBSD Documentation Project
106 (Handbook, FAQ, etc.) is now installed via packages by
107 sysinstall(8) and under the /usr/local/share/doc/freebsd
108 directory instead of /usr/share/doc.
111 The ABI of various structures related to the SYSV IPC API have
112 been changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43
113 kernel options now all require COMPAT_FREEBSD7.
114 Bump __FreeBSD_version to 800100.
117 Layout of struct vnet has changed as routing related variables
118 were moved to their own Vimage module. Modules need to be
119 recompiled. Bump __FreeBSD_version to 800099.
122 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023
123 and 1024 respectively. As long as no more than 16 groups per
124 process are used, no changes should be visible. When more
125 than 16 groups are used, old binaries may fail if they call
126 getgroups() or getgrouplist() with statically sized storage.
127 Recompiling will work around this, but applications should be
128 modified to use dynamically allocated storage for group arrays
129 as POSIX.1-2008 does not cap an implementation's number of
130 supported groups at NGROUPS_MAX+1 as previous versions did.
132 NFS and portalfs mounts may also be affected as the list of
133 groups is truncated to 16. Users of NFS who use more than 16
134 groups, should take care that negative group permissions are not
135 used on the exported file systems as they will not be reliable
136 unless a GSSAPI based authentication method is used.
139 The compiling option ADAPTIVE_LOCKMGRS has been introduced.
140 This option compiles in the support for adaptive spinning for lockmgrs
141 which want to enable it. The lockinit() function now accepts the
142 flag LK_ADAPTIVE in order to make the lock object subject to
143 adaptive spinning when both held in write and read mode.
146 The layout of the structure returned by IEEE80211_IOC_STA_INFO
147 has changed. User applications that use this ioctl need to be
151 The layout of struct thread has changed. Kernel and modules
155 The layout of structs ifnet, domain, protosw and vnet_net has
156 changed. Kernel modules need to be rebuilt.
157 Bump __FreeBSD_version to 800097.
160 window(1) has been removed from the base system. It can now be
161 installed from ports. The port is called misc/window.
164 The way we are storing and accessing `routing table' entries
165 has changed. Programs reading the FIB, like netstat, need to
169 A new netisr implementation has been added for FreeBSD 8. Network
170 file system modules, such as igmp, ipdivert, and others, should be
172 Bump __FreeBSD_version to 800096.
175 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose
179 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
180 Bump __FreeBSD_version to 800094.
183 Add mnt_xflag field to 'struct mount'. File system modules
185 Bump __FreeBSD_version to 800093.
188 The compiling option ADAPTIVE_SX has been retired while it has been
189 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
190 The KPI for sx_init_flags() changes as accepting flags:
191 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag
192 has been introduced in order to handle the reversed logic.
193 Bump __FreeBSD_version to 800092.
196 Add support for hierarchical jails. Remove global securelevel.
197 Bump __FreeBSD_version to 800091.
200 The layout of struct vnet_net has changed, therefore modules
202 Bump __FreeBSD_version to 800090.
205 The newly imported zic(8) produces a new format in the
206 output. Please run tzsetup(8) to install the newly created
207 data to /etc/localtime.
210 The sysctl tree for the usb stack has renamed from hw.usb2.* to
211 hw.usb.* and is now consistent again with previous releases.
214 802.11 monitor mode support was revised and driver api's
215 were changed. Drivers dependent on net80211 now support
216 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No
217 user-visible data structures were changed but applications
218 that use DLT_IEEE802_11 may require changes.
219 Bump __FreeBSD_version to 800088.
222 The layout of the following structs has changed: sysctl_oid,
223 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
224 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
225 panics may be experienced. World rebuild is required for
226 correctly checking networking state from userland.
227 Bump __FreeBSD_version to 800085.
230 MLDv2 and Source-Specific Multicast (SSM) have been merged
231 to the IPv6 stack. VIMAGE hooks are in but not yet used.
232 The implementation of SSM within FreeBSD's IPv6 stack closely
233 follows the IPv4 implementation.
235 For kernel developers:
237 * The most important changes are that the ip6_output() and
238 ip6_input() paths no longer take the IN6_MULTI_LOCK,
239 and this lock has been downgraded to a non-recursive mutex.
241 * As with the changes to the IPv4 stack to support SSM, filtering
242 of inbound multicast traffic must now be performed by transport
243 protocols within the IPv6 stack. This does not apply to TCP and
244 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
246 * The KPIs used by IPv6 multicast are similar to those used by
247 the IPv4 stack, with the following differences:
248 * im6o_mc_filter() is analogous to imo_multicast_filter().
249 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
250 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
251 * IN6_LOOKUP_MULTI() has been deprecated and removed.
252 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
253 for MLDv1 have an additional 'timer' argument which is used to
254 jitter the initial membership report for the solicited-node
255 multicast membership on-link.
256 * This is not strictly needed for MLDv2, which already jitters
257 its report transmissions. However, the 'timer' argument is
258 preserved in case MLDv1 is active on the interface.
260 * The KAME linked-list based IPv6 membership implementation has
261 been refactored to use a vector similar to that used by the IPv4
263 Code which maintains a list of its own multicast memberships
264 internally, e.g. carp, has been updated to reflect the new
267 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
268 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
269 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
270 implementation constraint which needs to be addressed in HEAD.
272 For application developers:
274 * The changes are broadly similar to those made for the IPv4
277 * The use of IPv4 and IPv6 multicast socket options on the same
278 socket, using mapped addresses, HAS NOT been tested or supported.
280 * There are a number of issues with the implementation of various
281 IPv6 multicast APIs which need to be resolved in the API surface
282 before the implementation is fully compatible with KAME userland
283 use, and these are mostly to do with interface index treatment.
285 * The literature available discusses the use of either the delta / ASM
286 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
287 using setsourcefilter(3)/getsourcefilter(3). For more information
288 please refer to RFC 3768, 'Socket Interface Extensions for
289 Multicast Source Filters'.
291 * Applications which use the published RFC 3678 APIs should be fine.
293 For systems administrators:
295 * The mtest(8) utility has been refactored to support IPv6, in
296 addition to IPv4. Interface addresses are no longer accepted
297 as arguments, their names must be used instead. The utility
298 will map the interface name to its first IPv4 address as
299 returned by getifaddrs(3).
301 * The ifmcstat(8) utility has also been updated to print the MLDv2
302 endpoint state and source filter lists via sysctl(3).
304 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
305 loopback of IPv6 multicast datagrams by default; it defaults to 1
306 to preserve the existing behaviour. Disabling multicast loopback is
307 recommended for optimal system performance.
309 * The IPv6 MROUTING code has been changed to examine this sysctl
310 instead of attempting to perform a group lookup before looping
311 back forwarded datagrams.
313 Bump __FreeBSD_version to 800084.
316 Implement low-level Bluetooth HCI API.
317 Bump __FreeBSD_version to 800083.
320 The layout of struct malloc_type, used by modules to register new
321 memory allocation types, has changed. Most modules will need to
322 be rebuilt or panics may be experienced.
323 Bump __FreeBSD_version to 800081.
326 Anticipate overflowing inp_flags - add inp_flags2.
327 This changes most offsets in inpcb, so checking v4 connection
328 state will require a world rebuild.
329 Bump __FreeBSD_version to 800080.
332 Add an llentry to struct route and struct route_in6. Modules
333 embedding a struct route will need to be recompiled.
334 Bump __FreeBSD_version to 800079.
337 The size of rt_metrics_lite and by extension rtentry has changed.
338 Networking administration apps will need to be recompiled.
339 The route command now supports show as an alias for get, weighting
340 of routes, sticky and nostick flags to alter the behavior of stateful
342 Bump __FreeBSD_version to 800078.
345 Do not use Giant for kbdmux(4) locking. This is wrong and
346 apparently causing more problems than it solves. This will
347 re-open the issue where interrupt handlers may race with
348 kbdmux(4) in polling mode. Typical symptoms include (but
349 not limited to) duplicated and/or missing characters when
350 low level console functions (such as gets) are used while
351 interrupts are enabled (for example geli password prompt,
352 mountroot prompt etc.). Disabling kbdmux(4) may help.
355 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
356 kernel modules referencing any of the above need to be recompiled.
357 Bump __FreeBSD_version to 800075.
360 GEOM_PART has become the default partition slicer for storage devices,
361 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
362 introduces some changes:
364 MSDOS/EBR: the devices created from MSDOS extended partition entries
365 (EBR) can be named differently than with GEOM_MBR and are now symlinks
366 to devices with offset-based names. fstabs may need to be modified.
368 BSD: the "geometry does not match label" warning is harmless in most
369 cases but it points to problems in file system misalignment with
370 disk geometry. The "c" partition is now implicit, covers the whole
371 top-level drive and cannot be (mis)used by users.
373 General: Kernel dumps are now not allowed to be written to devices
374 whose partition types indicate they are meant to be used for file
375 systems (or, in case of MSDOS partitions, as something else than
378 Most of these changes date approximately from 200812.
381 The uscanner(4) driver has been removed from the kernel. This follows
382 Linux removing theirs in 2.6 and making libusb the default interface
386 The multicast forwarding code has been cleaned up. netstat(1)
387 only relies on KVM now for printing bandwidth upcall meters.
388 The IPv4 and IPv6 modules are split into ip_mroute_mod and
389 ip6_mroute_mod respectively. The config(5) options for statically
390 compiling this code remain the same, i.e. 'options MROUTING'.
393 Support for the IFF_NEEDSGIANT network interface flag has been
394 removed, which means that non-MPSAFE network device drivers are no
395 longer supported. In particular, if_ar, if_sr, and network device
396 drivers from the old (legacy) USB stack can no longer be built or
400 POSIX.1 Native Language Support (NLS) has been enabled in libc and
401 a bunch of new language catalog files have also been added.
402 This means that some common libc messages are now localized and
403 they depend on the LC_MESSAGES environmental variable.
406 The k8temp(4) driver has been renamed to amdtemp(4) since
407 support for K10 and K11 CPU families was added.
410 IGMPv3 and Source-Specific Multicast (SSM) have been merged
411 to the IPv4 stack. VIMAGE hooks are in but not yet used.
413 For kernel developers, the most important changes are that the
414 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
415 and this lock has been downgraded to a non-recursive mutex.
417 Transport protocols (UDP, Raw IP) are now responsible for filtering
418 inbound multicast traffic according to group membership and source
419 filters. The imo_multicast_filter() KPI exists for this purpose.
420 Transports which do not use multicast (SCTP, TCP) already reject
421 multicast by default. Forwarding and receive performance may improve
422 as a mutex acquisition is no longer needed in the ip_input()
423 low-level input path. in_addmulti() and in_delmulti() are shimmed
424 to new KPIs which exist to support SSM in-kernel.
426 For application developers, it is recommended that loopback of
427 multicast datagrams be disabled for best performance, as this
428 will still cause the lock to be taken for each looped-back
429 datagram transmission. The net.inet.ip.mcast.loop sysctl may
430 be tuned to 0 to disable loopback by default; it defaults to 1
431 to preserve the existing behaviour.
433 For systems administrators, to obtain best performance with
434 multicast reception and multiple groups, it is always recommended
435 that a card with a suitably precise hash filter is used. Hash
436 collisions will still result in the lock being taken within the
437 transport protocol input path to check group membership.
439 If deploying FreeBSD in an environment with IGMP snooping switches,
440 it is recommended that the net.inet.igmp.sendlocal sysctl remain
441 enabled; this forces 224.0.0.0/24 group membership to be announced
444 The size of 'struct igmpstat' has changed; netstat needs to be
445 recompiled to reflect this.
446 Bump __FreeBSD_version to 800070.
449 libusb20.so.1 is now installed as libusb.so.1 and the ports system
450 updated to use it. This requires a buildworld/installworld in order to
451 update the library and dependencies (usbconfig, etc). Its advisable to
452 rebuild all ports which uses libusb. More specific directions are given
453 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
454 libusb are no longer required and can be removed.
457 A workaround is committed to allow the creation of System V shared
458 memory segment of size > 2 GB on the 64-bit architectures.
459 Due to a limitation of the existing ABI, the shm_segsz member
460 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
461 wrong for large segments. Note that limits must be explicitly
462 raised to allow such segments to be created.
465 The layout of struct ifnet has changed, requiring a rebuild of all
466 network device driver modules.
469 The /dev handling for the new USB stack has changed, a
470 buildworld/installworld is required for libusb20.
473 The new USB2 stack has now been permanently moved in and all kernel and
474 module names reverted to their previous values (eg, usb, ehci, ohci,
475 ums, ...). The old usb stack can be compiled in by prefixing the name
476 with the letter 'o', the old usb modules have been removed.
477 Updating entry 20090216 for xorg and 20090215 for libmap may still
481 The rc.conf(5) option if_up_delay has been renamed to
482 defaultroute_delay to better reflect its purpose. If you have
483 customized this setting in /etc/rc.conf you need to update it to
487 xorg 7.4 wants to configure its input devices via hald which does not
488 yet work with USB2. If the keyboard/mouse does not work in xorg then
490 Option "AllowEmptyInput" "off"
491 to your ServerLayout section. This will cause X to use the configured
492 kbd and mouse sections from your xorg.conf.
495 The GENERIC kernels for all architectures now default to the new USB2
496 stack. No kernel config options or code have been removed so if a
497 problem arises please report it and optionally revert to the old USB
498 stack. If you are loading USB kernel modules or have a custom kernel
499 that includes GENERIC then ensure that usb names are also changed over,
500 eg uftdi -> usb2_serial_ftdi.
502 Older programs linked against the ports libusb 0.1 need to be
503 redirected to the new stack's libusb20. /etc/libmap.conf can
505 # Map old usb library to new one for usb2 stack
506 libusb-0.1.so.8 libusb20.so.1
509 The ichsmb(4) driver has been changed to require SMBus slave
510 addresses be left-justified (xxxxxxx0b) rather than right-justified.
511 All of the other SMBus controller drivers require left-justified
512 slave addresses, so this change makes all the drivers provide the
516 INET6 statistics (struct ip6stat) was updated.
517 netstat(1) needs to be recompiled.
520 NTFS has been removed from GENERIC kernel on amd64 to match
521 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
522 will load ntfs.ko module automatically when NTFS support is
523 actually needed, unless ntfs.ko is not installed or security
524 level prohibits loading kernel modules. If either is the case,
525 "options NTFS" has to be added into kernel config.
528 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
529 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
530 800061. User space tools that rely on the size of struct tcpcb in
531 tcp_var.h (e.g. sockstat) need to be recompiled.
534 ng_tty(4) module updated to match the new TTY subsystem.
535 Due to API change, user-level applications must be updated.
536 New API support added to mpd5 CVS and expected to be present
537 in next mpd5.3 release.
540 With __FreeBSD_version 800060 the makefs tool is part of
541 the base system (it was a port).
544 The afdata and ifnet locks have been changed from mutexes to
545 rwlocks, network modules will need to be re-compiled.
548 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
549 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
550 The new code reduced struct rtentry{} by 16 bytes on 32-bit
551 architecture and 40 bytes on 64-bit architecture. The userland
552 applications "arp" and "ndp" have been updated accordingly.
553 The output from "netstat -r" shows only routing entries and
554 none of the L2 information.
557 __FreeBSD_version 800057 marks the switchover from the
558 binary ath hal to source code. Users must add the line:
560 options AH_SUPPORT_AR5416
562 to their kernel config files when specifying:
566 The ath_hal module no longer exists; the code is now compiled
567 together with the driver in the ath module. It is now
568 possible to tailor chip support (i.e. reduce the set of chips
569 and thereby the code size); consult ath_hal(4) for details.
572 __FreeBSD_version 800054 adds memory barriers to
573 <machine/atomic.h>, new interfaces to ifnet to facilitate
574 multiple hardware transmit queues for cards that support
575 them, and a lock-less ring-buffer implementation to
576 enable drivers to more efficiently manage queueing of
580 A new version of ZFS (version 13) has been merged to -HEAD.
581 This version has zpool attribute "listsnapshots" off by
582 default, which means "zfs list" does not show snapshots,
583 and is the same as Solaris behavior.
586 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
589 The uhci, ohci, ehci and slhci USB Host controller drivers have
590 been put into separate modules. If you load the usb module
591 separately through loader.conf you will need to load the
592 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
593 controller add the following to loader.conf:
599 The ABI used by the PMC toolset has changed. Please keep
600 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
604 atapci kernel module now includes only generic PCI ATA
605 driver. AHCI driver moved to ataahci kernel module.
606 All vendor-specific code moved into separate kernel modules:
607 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
608 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
609 atamarvell, atamicron, atanational, atanetcell, atanvidia,
610 atapromise, ataserverworks, atasiliconimage, atasis, atavia
613 The TTY subsystem of the kernel has been replaced by a new
614 implementation, which provides better scalability and an
615 improved driver model. Most common drivers have been migrated to
616 the new TTY subsystem, while others have not. The following
617 drivers have not yet been ported to the new TTY layer:
620 cy, digi, rc, rp, sio
626 ng_h4, ng_tty, ppp, sl, snp
628 Adding these drivers to your kernel configuration file shall
629 cause compilation to fail.
632 ntpd has been upgraded to 4.2.4p5.
635 OpenSSH has been upgraded to 5.1p1.
637 For many years, FreeBSD's version of OpenSSH preferred DSA
638 over RSA for host and user authentication keys. With this
639 upgrade, we've switched to the vendor's default of RSA over
640 DSA. This may cause upgraded clients to warn about unknown
641 host keys even for previously known hosts. Users should
642 follow the usual procedure for verifying host keys before
643 accepting the RSA key.
645 This can be circumvented by setting the "HostKeyAlgorithms"
646 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
649 Please note that the sequence of keys offered for
650 authentication has been changed as well. You may want to
651 specify IdentityFile in a different order to revert this
655 The sio(4) driver has been removed from the i386 and amd64
656 kernel configuration files. This means uart(4) is now the
657 default serial port driver on those platforms as well.
659 To prevent collisions with the sio(4) driver, the uart(4) driver
660 uses different names for its device nodes. This means the
661 onboard serial port will now most likely be called "ttyu0"
662 instead of "ttyd0". You may need to reconfigure applications to
663 use the new device names.
665 When using the serial port as a boot console, be sure to update
666 /boot/device.hints and /etc/ttys before booting the new kernel.
667 If you forget to do so, you can still manually specify the hints
668 at the loader prompt:
670 set hint.uart.0.at="isa"
671 set hint.uart.0.port="0x3F8"
672 set hint.uart.0.flags="0x10"
673 set hint.uart.0.irq="4"
677 The gpt(8) utility has been removed. Use gpart(8) to partition
681 The version that Linuxulator emulates was changed from 2.4.2
682 to 2.6.16. If you experience any problems with Linux binaries
683 please try to set sysctl compat.linux.osrelease to 2.4.2 and
684 if it fixes the problem contact emulation mailing list.
687 ISDN4BSD (I4B) was removed from the src tree. You may need to
688 update a your kernel configuration and remove relevant entries.
691 I have checked in code to support multiple routing tables.
692 See the man pages setfib(1) and setfib(2).
693 This is a hopefully backwards compatible version,
694 but to make use of it you need to compile your kernel
695 with options ROUTETABLES=2 (or more up to 16).
698 The 802.11 wireless support was redone to enable multi-bss
699 operation on devices that are capable. The underlying device
700 is no longer used directly but instead wlanX devices are
701 cloned with ifconfig. This requires changes to rc.conf files.
703 ifconfig_ath0="WPA DHCP"
706 ifconfig_wlan0="WPA DHCP"
707 see rc.conf(5) for more details. In addition, mergemaster of
708 /etc/rc.d is highly recommended. Simultaneous update of userland
709 and kernel wouldn't hurt either.
711 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
712 modules were merged into the base wlan module. All references
713 to these modules (e.g. in kernel config files) must be removed.
716 psm(4) has gained write(2) support in native operation level.
717 Arbitrary commands can be written to /dev/psm%d and status can
718 be read back from it. Therefore, an application is responsible
719 for status validation and error recovery. It is a no-op in
720 other operation levels.
723 Support for KSE threading has been removed from the kernel. To
724 run legacy applications linked against KSE libmap.conf may
725 be used. The following libmap.conf may be used to ensure
726 compatibility with any prior release:
728 libpthread.so.1 libthr.so.1
729 libpthread.so.2 libthr.so.2
730 libkse.so.3 libthr.so.3
733 The layout of struct vmspace has changed. This affects libkvm
734 and any executables that link against libkvm and use the
735 kvm_getprocs() function. In particular, but not exclusively,
736 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
737 The effects are minimal, but it's advisable to upgrade world
741 The latest em driver no longer has support in it for the
742 82575 adapter, this is now moved to the igb driver. The
743 split was done to make new features that are incompatible
744 with older hardware easier to do.
747 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
748 likewise the kernel option is now GEOM_LINUX_LVM.
751 The default NFS mount mode has changed from UDP to TCP for
752 increased reliability. If you rely on (insecurely) NFS
753 mounting across a firewall you may need to update your
757 Belatedly note the addition of m_collapse for compacting
761 The fts(3) structures have been changed to use adequate
762 integer types for their members and so to be able to cope
763 with huge file trees. The old fts(3) ABI is preserved
764 through symbol versioning in libc, so third-party binaries
765 using fts(3) should still work, although they will not take
766 advantage of the extended types. At the same time, some
767 third-party software might fail to build after this change
768 due to unportable assumptions made in its source code about
769 fts(3) structure members. Such software should be fixed
770 by its vendor or, in the worst case, in the ports tree.
771 FreeBSD_version 800015 marks this change for the unlikely
772 case that a portable fix is impossible.
775 To upgrade to -current after this date, you must be running
776 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
777 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
780 The ADAPTIVE_GIANT kernel option has been retired because its
781 functionality is the default now.
784 The AT keyboard emulation of sunkbd(4) has been turned on
785 by default. In order to make the special symbols of the Sun
786 keyboards driven by sunkbd(4) work under X these now have
787 to be configured the same way as Sun USB keyboards driven
788 by ukbd(4) (which also does AT keyboard emulation), f.e.:
790 Option "XkbLayout" "us"
791 Option "XkbRules" "xorg"
792 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
795 It has been decided that it is desirable to provide ABI
796 backwards compatibility to the FreeBSD 4/5/6 versions of the
797 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
798 broken with the introduction of PCI domain support (see the
799 20070930 entry). Unfortunately, this required the ABI of
800 PCIOCGETCONF to be broken again in order to be able to
801 provide backwards compatibility to the old version of that
802 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
803 again. As for prominent ports this affects neither pciutils
804 nor xorg-server this time, the hal port needs to be rebuilt
808 The misnamed kthread_create() and friends have been renamed
809 to kproc_create() etc. Many of the callers already
811 I will return kthread_create() and friends in a while
812 with implementations that actually create threads, not procs.
813 Renaming corresponds with version 800002.
819 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
820 WITHOUT_LIBTHR are set.
823 The PCI code has been made aware of PCI domains. This means that
824 the location strings as used by pciconf(8) etc are now in the
825 following format: pci<domain>:<bus>:<device>[:<function>]. It
826 also means that consumers of <sys/pciio.h> potentially need to
827 be recompiled; this includes the hal and xorg-server ports.
830 The caching daemon (cached) was renamed to nscd. nscd.conf
831 configuration file should be used instead of cached.conf and
832 nscd_enable, nscd_pidfile and nscd_flags options should be used
833 instead of cached_enable, cached_pidfile and cached_flags in
837 The getfacl(1) utility now prints owning user and group name
838 instead of owning uid and gid in the three line comment header.
839 This is the same behavior as getfacl(1) on Solaris and Linux.
842 The new IPsec code is now compiled in using the IPSEC option. The
843 IPSEC option now requires "device crypto" be defined in your kernel
844 configuration. The FAST_IPSEC kernel option is now deprecated.
847 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
848 note the changed syntax - keep state is now on by default. Also
849 note the fact that ftp-proxy(8) has been changed from bottom up and
850 has been moved from libexec to usr/sbin. Changes in the ALTQ
851 handling also affect users of IPFW's ALTQ capabilities.
854 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
855 only IPsec supported by FreeBSD. The new IPsec stack
856 supports both IPv4 and IPv6. The kernel option will change
857 after the code changes have settled in. For now the kernel
858 option IPSEC is deprecated and FAST_IPSEC is the only option, that
859 will change after some settling time.
862 The wicontrol(8) utility has been removed from the base system. wi(4)
863 cards should be configured using ifconfig(8), see the man page for more
867 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
868 instead of the nve(4) driver. Please update your configuration
872 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
873 database if it is missing or older than the aliases file. If
874 desired, set the new rc.conf option sendmail_rebuild_aliases
875 to "YES" to restore that functionality.
878 The IPv4 multicast socket code has been considerably modified, and
879 moved to the file sys/netinet/in_mcast.c. Initial support for the
880 RFC 3678 Source-Specific Multicast Socket API has been added to
881 the IPv4 network stack.
883 Strict multicast and broadcast reception is now the default for
884 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
885 has now been removed.
887 The RFC 1724 hack for interface selection has been removed; the use
888 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
889 been added to replace it. Consumers such as routed will soon be
890 updated to reflect this.
892 These changes affect users who are running routed(8) or rdisc(8)
893 from the FreeBSD base system on point-to-point or unnumbered
897 The net80211 layer has changed significantly and all wireless
898 drivers that depend on it need to be recompiled. Further these
899 changes require that any program that interacts with the wireless
900 support in the kernel be recompiled; this includes: ifconfig,
901 wpa_supplicant, hostapd, and wlanstats. Users must also, for
902 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
903 if they use modules for wireless support. These modules implement
904 scanning support for station and ap modes, respectively. Failure
905 to load the appropriate module before marking a wireless interface
906 up will result in a message to the console and the device not
910 The pam_nologin(8) module ceases to provide an authentication
911 function and starts providing an account management function.
912 Consequent changes to /etc/pam.d should be brought in using
913 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
914 need manual editing as follows. Locate this line (or similar):
916 auth required pam_nologin.so no_warn
918 and change it according to this example:
920 account required pam_nologin.so no_warn
922 That is, the first word needs to be changed from "auth" to
923 "account". The new line can be moved to the account section
924 within the file for clarity. Not updating pam.conf(5) files
925 will result in nologin(5) ignored by the respective services.
928 The ether_ioctl() function has been synchronized with ioctl(2)
929 and ifnet.if_ioctl. Due to that, the size of one of its arguments
930 has changed on 64-bit architectures. All kernel modules using
931 ether_ioctl() need to be rebuilt on such architectures.
934 Improved INCLUDE_CONFIG_FILE support has been introduced to the
935 config(8) utility. In order to take advantage of this new
936 functionality, you are expected to recompile and install
937 src/usr.sbin/config. If you don't rebuild config(8), and your
938 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
939 build will be broken because of a missing "kernconfstring"
943 Symbol versioning is enabled by default. To disable it, use
944 option WITHOUT_SYMVER. It is not advisable to attempt to
945 disable symbol versioning once it is enabled; your installworld
946 will break because a symbol version-less libc will get installed
947 before the install tools. As a result, the old install tools,
948 which previously had symbol dependencies to FBSD_1.0, will fail
949 because the freshly installed libc will not have them.
951 The default threading library (providing "libpthread") has been
952 changed to libthr. If you wish to have libkse as your default,
953 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
956 The ABI breakage in sendmail(8)'s libmilter has been repaired
957 so it is no longer necessary to recompile mail filters (aka,
958 milters). If you recompiled mail filters after the 20070408
959 note, it is not necessary to recompile them again.
962 The new trunk(4) driver has been renamed to lagg(4) as it better
963 reflects its purpose. ifconfig will need to be recompiled.
966 sendmail(8) has been updated to version 8.14.1. Mail filters
967 (aka, milters) compiled against the libmilter included in the
968 base operating system should be recompiled.
971 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
972 In order to use them one must agree to the respective LICENSE in
973 share/doc/legal and define legal.intel_<name>.license_ack=1 via
974 loader.conf(5) or kenv(1). Make sure to deinstall the now
975 deprecated modules from the respective firmware ports.
978 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
979 were removed from FreeBSD's libc. These originally came from INRIA
980 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
981 deprecated in previous releases.
982 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
983 replace it as a more portable (and re-entrant) API.
986 To support interrupt filtering a modification to the newbus API
987 has occurred, ABI was broken and __FreeBSD_version was bumped
988 to 700031. Please make sure that your kernel and modules are in
990 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
993 The IPv6 multicast forwarding code may now be loaded into GENERIC
994 kernels by loading the ip_mroute.ko module. This is built into the
995 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
996 set; see src.conf(5) for more information.
999 The output of netstat -r has changed. Without -n, we now only
1000 print a "network name" without the prefix length if the network
1001 address and mask exactly match a Class A/B/C network, and an entry
1002 exists in the nsswitch "networks" map.
1003 With -n, we print the full unabbreviated CIDR network prefix in
1004 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
1005 This change is in preparation for changes such as equal-cost
1006 multipath, and to more generally assist operational deployment
1007 of FreeBSD as a modern IPv4 router.
1010 PIM has been turned on by default in the IPv4 multicast
1011 routing code. The kernel option 'PIM' has now been removed.
1012 PIM is now built by default if option 'MROUTING' is specified.
1013 It may now be loaded into GENERIC kernels by loading the
1014 ip_mroute.ko module.
1017 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
1018 has been removed. Its functionality may be achieved by explicitly
1019 configuring gif(4) interfaces and using the 'phyint' keyword in
1021 XORP does not support source-routed IPv4 multicast tunnels nor the
1022 integrated IPIP tunneling, therefore it is not affected by this
1023 change. The __FreeBSD_version macro has been bumped to 700030.
1026 Support for PCI Message Signalled Interrupts has been
1027 re-enabled in the bge driver, only for those chips which are
1028 believed to support it properly. If there are any problems,
1029 MSI can be disabled completely by setting the
1030 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
1034 Support for PCI Message Signalled Interrupts has been
1035 disabled again in the bge driver. Many revisions of the
1036 hardware fail to support it properly. Support can be
1037 re-enabled by removing the #define of BGE_DISABLE_MSI in
1038 "src/sys/dev/bge/if_bge.c".
1041 Support for PCI Message Signalled Interrupts has been added
1042 to the bge driver. If there are any problems, MSI can be
1043 disabled completely by setting the 'hw.pci.enable_msi' and
1044 'hw.pci.enable_msix' tunables to 0 in the loader.
1047 The removal of several facets of the experimental Threading
1048 system from the kernel means that the proc and thread structures
1049 have changed quite a bit. I suggest all kernel modules that might
1050 reference these structures be recompiled.. Especially the
1054 Sound infrastructure has been updated with various fixes and
1055 improvements. Most of the changes are pretty much transparent,
1056 with exceptions of followings:
1057 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
1058 moved to their own dev sysctl nodes, for example:
1059 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
1060 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
1061 own chardev in the form of "dsp%d.<function>%d", where <function>
1062 is p = playback, r = record and v = virtual, respectively. Users
1063 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
1064 This does not affect those who are using "/dev/dsp".
1067 geom(4)'s gmirror(8) class metadata structure has been
1068 rev'd from v3 to v4. If you update across this point and
1069 your metadata is converted for you, you will not be easily
1070 able to downgrade since the /boot/kernel.old/geom_mirror.ko
1071 kernel module will be unable to read the v4 metadata. You
1072 can resolve this by doing from the loader(8) prompt:
1074 set vfs.root.mountfrom="ufs:/dev/XXX"
1076 where XXX is the root slice of one of the disks that composed
1077 the mirror (i.e.: /dev/ad0s1a). You can then rebuild
1078 the array the same way you built it originally.
1081 The following binaries have been disconnected from the build:
1082 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
1083 and mount_std. The functionality of these programs has been
1084 moved into the mount program. For example, to mount a devfs
1085 filesystem, instead of using mount_devfs, use: "mount -t devfs".
1086 This does not affect entries in /etc/fstab, since entries in
1087 /etc/fstab are always processed with "mount -t fstype".
1090 Support for PCI Message Signalled Interrupts on i386 and amd64
1091 has been added to the kernel and various drivers will soon be
1092 updated to use MSI when it is available. If there are any problems,
1093 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
1094 and 'hw.pci.enable_msix' tunables to 0 in the loader.
1097 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
1098 The lockmgr object layout has been changed as a result of having
1099 a lock_object embedded in it. As a consequence all file system
1100 kernel modules must be re-compiled. The mutex profiling man page
1101 has not yet been updated to reflect this change.
1104 KSE in the kernel has now been made optional and turned on by
1105 default. Use 'nooption KSE' in your kernel config to turn it
1106 off. All kernel modules *must* be recompiled after this change.
1107 There-after, modules from a KSE kernel should be compatible with
1108 modules from a NOKSE kernel due to the temporary padding fields
1109 added to 'struct proc'.
1112 mrouted and its utilities have been removed from the base system.
1115 Some ioctl(2) command codes have changed. Full backward ABI
1116 compatibility is provided if the "options COMPAT_FREEBSD6" is
1117 present in the kernel configuration file. Make sure to add
1118 this option to your kernel config file, or recompile X.Org
1119 and the rest of ports; otherwise they may refuse to work.
1122 tcpslice has been removed from the base system.
1125 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
1126 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
1127 systat needs to be rebuilt.
1130 libpcap updated to v0.9.4 and tcpdump to v3.9.4
1133 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
1134 for IPFIREWALL_FORWARD is now as it was before when it was first
1135 committed and for years after. The behaviour is now ON.
1138 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
1139 Now it can decrypt files created from different architectures.
1140 Unfortunately, it is no longer able to decrypt a cipher text
1141 generated with an older version on 64 bit architectures.
1142 If you have such a file, you need old utility to decrypt it.
1145 The interface version of the i4b kernel part has changed. So
1146 after updating the kernel sources and compiling a new kernel,
1147 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
1148 be rebuilt, and vice versa.
1151 The XBOX kernel now defaults to the nfe(4) driver instead of
1152 the nve(4) driver. Please update your configuration
1156 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
1157 PCnet family of NICs has been removed. The new le(4) driver serves
1158 as an equivalent but cross-platform replacement with the pcn(4)
1159 driver still providing performance-optimized support for the subset
1160 of AMD Am79C971 PCnet-FAST and greater chips as before.
1163 The machdep.* sysctls and the adjkerntz utility have been
1164 modified a bit. The new adjkerntz utility uses the new
1165 sysctl names and sysctlbyname() calls, so it may be impossible
1166 to run an old /sbin/adjkerntz utility in single-user mode
1167 with a new kernel. Replace the `adjkerntz -i' step before
1168 `make installworld' with:
1170 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
1172 and proceed as usual with the rest of the installworld-stage
1173 steps. Otherwise, you risk installing binaries with their
1174 timestamp set several hours in the future, especially if
1175 you are running with local time set to GMT+X hours.
1178 The ip6fw utility has been removed. The behavior provided by
1179 ip6fw has been in ipfw2 for a good while and the rc.d scripts
1180 have been updated to deal with it. There are some rules that
1181 might not migrate cleanly. Use rc.firewall6 as a template to
1185 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
1186 attachments have been removed. Make sure to configure scc(4)
1187 on sparc64. Note also that by default puc(4) will use uart(4)
1188 and not sio(4) for serial ports because interrupt handling has
1189 been optimized for multi-port serial cards and only uart(4)
1190 implements the interface to support it.
1193 The scc(4) driver replaces puc(4) for Serial Communications
1194 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
1195 Z8530. On sparc64, it is advised to add scc(4) to the kernel
1196 configuration to make sure that the serial ports remain
1200 Most world/kernel related NO_* build options changed names.
1201 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
1202 after FreeBSD ports) and should be set in /etc/src.conf
1203 (the src.conf(5) manpage is provided). Full backwards
1204 compatibility is maintained for the time being though it's
1205 highly recommended to start moving old options out of the
1206 system-wide /etc/make.conf file into the new /etc/src.conf
1207 while also properly renaming them. More conversions will
1208 likely follow. Posting to current@:
1210 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
1213 The NETSMBCRYPTO kernel option has been retired because its
1214 functionality is always included in NETSMB and smbfs.ko now.
1217 The TDFX_LINUX kernel option was retired and replaced by the
1218 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
1219 kernel module. Loading it alone should suffice to get 3dfx support
1220 for Linux apps because it will pull in 3dfx.ko and linux.ko through
1224 The 'audit' group was added to support the new auditing functionality
1225 in the base system. Be sure to follow the directions for updating,
1226 including the requirement to run mergemaster -p.
1229 The kernel ABI to file system modules was changed on i386.
1230 Please make sure that your kernel and modules are in sync.
1233 This actually occured some time ago, but installing the kernel
1234 now also installs a bunch of symbol files for the kernel modules.
1235 This increases the size of /boot/kernel to about 67Mbytes. You
1236 will need twice this if you will eventually back this up to kernel.old
1237 on your next install.
1238 If you have a shortage of room in your root partition, you should add
1239 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
1240 to your /etc/make.conf.
1243 libc's malloc implementation has been replaced. This change has the
1244 potential to uncover application bugs that previously went unnoticed.
1245 See the malloc(3) manual page for more details.
1248 The generic netgraph(4) cookie has been changed. If you upgrade
1249 kernel passing this point, you also need to upgrade userland
1250 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
1253 si(4)'s device files now contain the unit number.
1254 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
1257 The kernel ABI was mostly destroyed due to a change in the size
1258 of struct lock_object which is nested in other structures such
1259 as mutexes which are nested in all sorts of other structures.
1260 Make sure your kernel and modules are in sync.
1263 The page coloring algorithm in the VM subsystem was converted
1264 from tuning with kernel options to autotuning. Please remove
1265 any PQ_* option except PQ_NOOPT from your kernel config.
1268 The net80211-related tools in the tools/tools/ath directory
1269 have been moved to tools/tools/net80211 and renamed with a
1270 "wlan" prefix. Scripts that use them should be adjusted
1274 Scripts in the local_startup directories (as defined in
1275 /etc/defaults/rc.conf) that have the new rc.d semantics will
1276 now be run as part of the base system rcorder. If there are
1277 errors or problems with one of these local scripts, it could
1278 cause boot problems. If you encounter such problems, boot in
1279 single user mode, remove that script from the */rc.d directory.
1280 Please report the problem to the port's maintainer, and the
1281 freebsd-ports@freebsd.org mailing list.
1284 The nodev mount option was deprecated in RELENG_6 (where it
1285 was a no-op), and is now unsupported. If you have nodev or dev listed
1286 in /etc/fstab, remove it, otherwise it will result in a mount error.
1289 ABI between ipfw(4) and ipfw(8) has been changed. You need
1290 to rebuild ipfw(8) when rebuilding kernel.
1293 rp(4)'s device files now contain the unit number.
1294 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
1297 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
1298 Its /etc/rc.conf.d configuration file has been `ppp' from
1299 the beginning, and hence there is no need to touch it.
1302 Now most modules get their build-time options from the kernel
1303 configuration file. A few modules still have fixed options
1304 due to their non-conformant implementation, but they will be
1305 corrected eventually. You may need to review the options of
1306 the modules in use, explicitly specify the non-default options
1307 in the kernel configuration file, and rebuild the kernel and
1311 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
1312 to turn polling(4) on your interfaces.
1315 The old bridge(4) implementation was retired. The new
1316 if_bridge(4) serves as a full functional replacement.
1319 The ai_addrlen of a struct addrinfo was changed to a socklen_t
1320 to conform to POSIX-2001. This change broke an ABI
1321 compatibility on 64 bit architecture. You have to recompile
1322 userland programs that use getaddrinfo(3) on 64 bit
1326 RELENG_6 branched here.
1329 The pccard_ifconfig rc.conf variable has been removed and a new
1330 variable, ifconfig_DEFAULT has been introduced. Unlike
1331 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
1332 do not have ifconfig_ifn entries rather than just those in
1333 removable_interfaces.
1336 Some previous versions of PAM have permitted the use of
1337 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
1338 to third party PAM modules in /usr/local/lib. A change has been
1339 made to require the use of absolute paths in order to avoid
1340 ambiguity and dependence on library path configuration, which may
1341 affect existing configurations.
1344 Major changes to network interface API. All drivers must be
1345 recompiled. Drivers not in the base system will need to be
1346 updated to the new APIs.
1349 Changes were made to kinfo_proc in sys/user.h. Please recompile
1350 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
1351 will not behave correctly.
1353 The API and ABI for hwpmc(4) have changed with the addition
1354 of sampling support. Please recompile lib/libpmc(3) and
1355 usr.sbin/{pmcstat,pmccontrol}.
1358 The OpenBSD dhclient was imported in place of the ISC dhclient
1359 and the network interface configuration scripts were updated
1360 accordingly. If you use DHCP to configure your interfaces, you
1361 must now run devd. Also, DNS updating was lost so you will need
1362 to find a workaround if you use this feature.
1364 The '_dhcp' user was added to support the OpenBSD dhclient. Be
1365 sure to run mergemaster -p (like you are supposed to do every time
1369 if_bridge was added to the tree. This has changed struct ifnet.
1370 Please recompile userland and all network related modules.
1373 The n_net of a struct netent was changed to an uint32_t, and
1374 1st argument of getnetbyaddr() was changed to an uint32_t, to
1375 conform to POSIX-2001. These changes broke an ABI
1376 compatibility on 64 bit architecture. With these changes,
1377 shlib major of libpcap was bumped. You have to recompile
1378 userland programs that use getnetbyaddr(3), getnetbyname(3),
1379 getnetent(3) and/or libpcap on 64 bit architecture.
1382 Kernel parsing of extra options on '#!' first lines of shell
1383 scripts has changed. Lines with multiple options likely will
1384 fail after this date. For full details, please see
1385 http://people.freebsd.org/~gad/Updating-20050528.txt
1388 The packet filter (pf) code has been updated to OpenBSD 3.7
1389 Please note the changed anchor syntax and the fact that
1390 authpf(8) now needs a mounted fdescfs(5) to function.
1393 The NO_MIXED_MODE kernel option has been removed from the i386
1394 amd64 platforms as its use has been superceded by the new local
1395 APIC timer code. Any kernel config files containing this option
1399 The on-disk format of LC_CTYPE files was changed to be machine
1400 independent. Please make sure NOT to use NO_CLEAN buildworld
1401 when crossing this point. Crossing this point also requires
1402 recompile or reinstall of all locale depended packages.
1405 The ifi_epoch member of struct if_data has been changed to
1406 contain the uptime at which the interface was created or the
1407 statistics zeroed rather then the wall clock time because
1408 wallclock time may go backwards. This should have no impact
1409 unless an snmp implementation is using this value (I know of
1410 none at this point.)
1413 The acpi_perf and acpi_throttle drivers are now part of the
1414 acpi(4) main module. They are no longer built separately.
1417 The layout of struct image_params has changed. You have to
1418 recompile all compatibility modules (linux, svr4, etc) for use
1419 with the new kernel.
1422 The p4tcc driver has been merged into cpufreq(4). This makes
1423 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
1424 compile in "device cpufreq" to restore this functionality.
1427 The responsibility of recomputing the file system summary of
1428 a SoftUpdates-enabled dirty volume has been transferred to the
1429 background fsck. A rebuild of fsck(8) utility is recommended
1430 if you have updated the kernel.
1432 To get the old behavior (recompute file system summary at mount
1433 time), you can set vfs.ffs.compute_summary_at_mount=1 before
1434 mounting the new volume.
1437 The cpufreq import is complete. As part of this, the sysctls for
1438 acpi(4) throttling have been removed. The power_profile script
1439 has been updated, so you can use performance/economy_cpu_freq in
1440 rc.conf(5) to set AC on/offline cpu frequencies.
1443 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
1444 requires recompiling libnetgraph and userland netgraph utilities.
1447 Support for abbreviated forms of a number of ipfw options is
1448 now deprecated. Warnings are printed to stderr indicating the
1449 correct full form when a match occurs. Some abbreviations may
1450 be supported at a later date based on user feedback. To be
1451 considered for support, abbreviations must be in use prior to
1452 this commit and unlikely to be confused with current key words.
1455 By a popular demand, a lot of NOFOO options were renamed
1456 to NO_FOO (see bsd.compat.mk for a full list). The old
1457 spellings are still supported, but will cause annoying
1458 warnings on stderr. Make sure you upgrade properly (see
1459 the COMMON ITEMS: section later in this file).
1462 Auto-loading of ancillary wlan modules such as wlan_wep has
1463 been temporarily disabled; you need to statically configure
1464 the modules you need into your kernel or explicitly load them
1465 prior to use. Specifically, if you intend to use WEP encryption
1466 with an 802.11 device load/configure wlan_wep; if you want to
1467 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
1468 and wlan_xauth as required.
1471 The behaviour of ppp(8) has changed slightly. If lqr is enabled
1472 (``enable lqr''), older versions would revert to LCP ECHO mode on
1473 negotiation failure. Now, ``enable echo'' is required for this
1474 behaviour. The ppp version number has been bumped to 3.4.2 to
1478 The wlan support has been updated to split the crypto support
1479 into separate modules. For static WEP you must configure the
1480 wlan_wep module in your system or build and install the module
1481 in place where it can be loaded (the kernel will auto-load
1482 the module when a wep key is configured).
1485 The ath driver has been updated to split the tx rate control
1486 algorithm into a separate module. You need to include either
1487 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
1490 Support for systems with an 80386 CPU has been removed. Please
1491 use FreeBSD 5.x or earlier on systems with an 80386.
1494 We have had a hack which would mount the root filesystem
1495 R/W if the device were named 'md*'. As part of the vnode
1496 work I'm doing I have had to remove this hack. People
1497 building systems which use preloaded MD root filesystems
1498 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
1499 their /etc/rc scripts.
1502 FreeBSD 5.3 shipped here.
1505 The size of struct tcpcb has changed again due to the removal
1506 of RFC1644 T/TCP. You have to recompile userland programs that
1507 read kmem for tcp sockets directly (netstat, sockstat, etc.)
1510 The size of struct tcpcb has changed. You have to recompile
1511 userland programs that read kmem for tcp sockets directly
1512 (netstat, sockstat, etc.)
1515 RELENG_5 branched here. For older entries, please see updating
1516 in the RELENG_5 branch.
1522 Avoid using make -j when upgrading. From time to time in the
1523 past there have been problems using -j with buildworld and/or
1524 installworld. This is especially true when upgrading between
1525 "distant" versions (eg one that cross a major release boundary
1526 or several minor releases, or when several months have passed
1527 on the -current branch).
1529 Sometimes, obscure build problems are the result of environment
1530 poisoning. This can happen because the make utility reads its
1531 environment when searching for values for global variables.
1532 To run your build attempts in an "environmental clean room",
1533 prefix all make commands with 'env -i '. See the env(1) manual
1534 page for more details.
1536 When upgrading from one major version to another it is generally
1537 best to upgrade to the latest code in the currently installed branch
1538 first, then do an upgrade to the new branch. This is the best-tested
1539 upgrade path, and has the highest probability of being successful.
1540 Please try this approach before reporting problems with a major
1545 If you are updating from a prior version of FreeBSD (even one just
1546 a few days old), you should follow this procedure. It is the most
1547 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
1549 make kernel-toolchain
1550 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
1551 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
1553 To test a kernel once
1554 ---------------------
1555 If you just want to boot a kernel once (because you are not sure
1556 if it works, or if you want to boot a known bad kernel to provide
1557 debugging information) run
1558 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
1559 nextboot -k testkernel
1561 To just build a kernel when you know that it won't mess you up
1562 --------------------------------------------------------------
1563 This assumes you are already running a 5.X system. Replace
1564 ${arch} with the architecture of your machine (e.g. "i386",
1565 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
1567 cd src/sys/${arch}/conf
1568 config KERNEL_NAME_HERE
1569 cd ../compile/KERNEL_NAME_HERE
1574 If this fails, go to the "To build a kernel" section.
1576 To rebuild everything and install it on the current system.
1577 -----------------------------------------------------------
1578 # Note: sometimes if you are running current you gotta do more than
1579 # is listed here if you are upgrading from a really old current.
1581 <make sure you have good level 0 dumps>
1583 make kernel KERNCONF=YOUR_KERNEL_HERE
1585 <reboot in single user> [3]
1593 To cross-install current onto a separate partition
1594 --------------------------------------------------
1595 # In this approach we use a separate partition to hold
1596 # current's root, 'usr', and 'var' directories. A partition
1597 # holding "/", "/usr" and "/var" should be about 2GB in
1600 <make sure you have good level 0 dumps>
1603 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1604 <maybe newfs current's root partition>
1605 <mount current's root partition on directory ${CURRENT_ROOT}>
1606 make installworld DESTDIR=${CURRENT_ROOT}
1607 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1608 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1609 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
1610 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1611 <reboot into current>
1612 <do a "native" rebuild/install as described in the previous section>
1613 <maybe install compatibility libraries from ports/misc/compat*>
1617 To upgrade in-place from 5.x-stable to current
1618 ----------------------------------------------
1619 <make sure you have good level 0 dumps>
1621 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
1623 <reboot in single user> [3]
1630 Make sure that you've read the UPDATING file to understand the
1631 tweaks to various things you need. At this point in the life
1632 cycle of current, things change often and you are on your own
1633 to cope. The defaults can also change, so please read ALL of
1634 the UPDATING entries.
1636 Also, if you are tracking -current, you must be subscribed to
1637 freebsd-current@freebsd.org. Make sure that before you update
1638 your sources that you have read and understood all the recent
1639 messages there. If in doubt, please track -stable which has
1640 much fewer pitfalls.
1642 [1] If you have third party modules, such as vmware, you
1643 should disable them at this point so they don't crash your
1646 [3] From the bootblocks, boot -s, and then do
1651 adjkerntz -i # if CMOS is wall time
1652 Also, when doing a major release upgrade, it is required that
1653 you boot into single user mode to do the installworld.
1655 [4] Note: This step is non-optional. Failure to do this step
1656 can result in a significant reduction in the functionality of the
1657 system. Attempting to do it by hand is not recommended and those
1658 that pursue this avenue should read this file carefully, as well
1659 as the archives of freebsd-current and freebsd-hackers mailing lists
1660 for potential gotchas.
1662 [5] Usually this step is a noop. However, from time to time
1663 you may need to do this if you get unknown user in the following
1664 step. It never hurts to do it all the time. You may need to
1665 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1666 install) after the buildworld before this step if you last updated
1667 from current before 20020224 or from -stable before 20020408.
1669 [8] In order to have a kernel that can run the 4.x binaries
1670 needed to do an installworld, you must include the COMPAT_FREEBSD4
1671 option in your kernel. Failure to do so may leave you with a system
1672 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
1673 is required to run the 5.x binaries on more recent kernels.
1675 Make sure that you merge any new devices from GENERIC since the
1676 last time you updated your kernel config file.
1678 [9] When checking out sources, you must include the -P flag to have
1679 cvs prune empty directories.
1681 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1682 "?=" instead of the "=" assignment operator, so that buildworld can
1683 override the CPUTYPE if it needs to.
1685 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1686 not on the command line, or in /etc/make.conf. buildworld will
1687 warn if it is improperly defined.
1690 This file contains a list, in reverse chronological order, of major
1691 breakages in tracking -current. Not all things will be listed here,
1692 and it only starts on October 16, 2004. Updating files can found in
1693 previous releases if your system is older than this.
1695 Copyright information:
1697 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
1699 Redistribution, publication, translation and use, with or without
1700 modification, in full or in part, in any form or format of this
1701 document are permitted without further permission from the author.
1703 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1704 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1705 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1706 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1707 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1708 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1709 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1710 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1711 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1712 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1713 POSSIBILITY OF SUCH DAMAGE.
1715 If you find this document useful, and you want to, you may buy the
1718 Contact Warner Losh if you have any questions about your use of