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 20100106: p2 FreeBSD-SA-10:01.bind, FreeBSD-SA-10:02.ntpd,
19 FreeBSD-SA-10:03.zfs, FreeBSD-EN-10:01.freebsd
20 Fix BIND named(8) cache poisoning with DNSSEC validation.
23 Fix ntpd mode 7 denial of service. [SA-10:02]
25 Fix ZFS ZIL playback with insecure permissions. [SA-10:03]
27 Various FreeBSD 8.0-RELEASE improvements. [EN-10:01]
29 20091203: p1 FreeBSD-SA-09:15.ssl, FreeBSD-SA-09:16.rtld,
30 FreeBSD-SA-09:17.freebsd-update
31 Disable SSL renegotiation in order to protect against a serious
32 protocol flaw. [09:15]
34 Correctly handle failures from unsetenv resulting from a corrupt
35 environment in rtld-elf. [09:16]
37 Fix permissions in freebsd-update in order to prevent leakage of
38 sensitive files. [09:17]
44 802.11s D3.03 support was committed. This is incompatible with
45 the previous code, which was based on D3.0.
48 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
49 mount(8) and -a option for df(1) to see them.
52 Remove the option STOP_NMI. The default action is now to use NMI
53 only for KDB via the newly introduced function stop_cpus_hard()
54 and maintain stop_cpus() to just use a normal IPI_STOP on ia32
61 Bump the shared library version numbers for all libraries that
62 do not use symbol versioning as part of the 8.0-RELEASE cycle.
63 Bump __FreeBSD_version to 800105.
66 Due to changes in the implementation of virtual network stack
67 support, all network-related kernel modules must be recompiled.
68 As this change breaks the ABI, bump __FreeBSD_version to 800104.
71 The TOE interface to the TCP syncache has been modified to remove struct
72 tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. The
73 cxgb driver is the only TOE consumer affected by this change, and needs
74 to be recompiled along with the kernel. As this change breaks the ABI,
75 bump __FreeBSD_version to 800103.
78 Padding has been added to struct tcpcb, sackhint and tcpstat in
79 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
80 maintainig the ABI. However, this change breaks the ABI, so bump
81 __FreeBSD_version to 800102. User space tools that rely on the size of
82 any of these structs (e.g. sockstat) need to be recompiled.
85 The NFS_LEGACYRPC option has been removed along with the old
86 kernel RPC implementation that this option selected. Kernel
87 configurations may need to be adjusted.
90 The network interface device nodes at /dev/net/<interface> have
91 been removed. All ioctl operations can be performed the normal
92 way using routing sockets. The kqueue functionality can
93 generally be replaced with routing sockets.
96 The documentation from the FreeBSD Documentation Project
97 (Handbook, FAQ, etc.) is now installed via packages by
98 sysinstall(8) and under the /usr/local/share/doc/freebsd
99 directory instead of /usr/share/doc.
102 The ABI of various structures related to the SYSV IPC API have
103 been changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43
104 kernel options now all require COMPAT_FREEBSD7.
105 Bump __FreeBSD_version to 800100.
108 Layout of struct vnet has changed as routing related variables
109 were moved to their own Vimage module. Modules need to be
110 recompiled. Bump __FreeBSD_version to 800099.
113 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023
114 and 1024 respectively. As long as no more than 16 groups per
115 process are used, no changes should be visible. When more
116 than 16 groups are used, old binaries may fail if they call
117 getgroups() or getgrouplist() with statically sized storage.
118 Recompiling will work around this, but applications should be
119 modified to use dynamically allocated storage for group arrays
120 as POSIX.1-2008 does not cap an implementation's number of
121 supported groups at NGROUPS_MAX+1 as previous versions did.
123 NFS and portalfs mounts may also be affected as the list of
124 groups is truncated to 16. Users of NFS who use more than 16
125 groups, should take care that negative group permissions are not
126 used on the exported file systems as they will not be reliable
127 unless a GSSAPI based authentication method is used.
130 The compiling option ADAPTIVE_LOCKMGRS has been introduced.
131 This option compiles in the support for adaptive spinning for lockmgrs
132 which want to enable it. The lockinit() function now accepts the
133 flag LK_ADAPTIVE in order to make the lock object subject to
134 adaptive spinning when both held in write and read mode.
137 The layout of the structure returned by IEEE80211_IOC_STA_INFO
138 has changed. User applications that use this ioctl need to be
142 The layout of struct thread has changed. Kernel and modules
146 The layout of structs ifnet, domain, protosw and vnet_net has
147 changed. Kernel modules need to be rebuilt.
148 Bump __FreeBSD_version to 800097.
151 window(1) has been removed from the base system. It can now be
152 installed from ports. The port is called misc/window.
155 The way we are storing and accessing `routing table' entries
156 has changed. Programs reading the FIB, like netstat, need to
160 A new netisr implementation has been added for FreeBSD 8. Network
161 file system modules, such as igmp, ipdivert, and others, should be
163 Bump __FreeBSD_version to 800096.
166 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose
170 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
171 Bump __FreeBSD_version to 800094.
174 Add mnt_xflag field to 'struct mount'. File system modules
176 Bump __FreeBSD_version to 800093.
179 The compiling option ADAPTIVE_SX has been retired while it has been
180 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
181 The KPI for sx_init_flags() changes as accepting flags:
182 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag
183 has been introduced in order to handle the reversed logic.
184 Bump __FreeBSD_version to 800092.
187 Add support for hierarchical jails. Remove global securelevel.
188 Bump __FreeBSD_version to 800091.
191 The layout of struct vnet_net has changed, therefore modules
193 Bump __FreeBSD_version to 800090.
196 The newly imported zic(8) produces a new format in the
197 output. Please run tzsetup(8) to install the newly created
198 data to /etc/localtime.
201 The sysctl tree for the usb stack has renamed from hw.usb2.* to
202 hw.usb.* and is now consistent again with previous releases.
205 802.11 monitor mode support was revised and driver api's
206 were changed. Drivers dependent on net80211 now support
207 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No
208 user-visible data structures were changed but applications
209 that use DLT_IEEE802_11 may require changes.
210 Bump __FreeBSD_version to 800088.
213 The layout of the following structs has changed: sysctl_oid,
214 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
215 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
216 panics may be experienced. World rebuild is required for
217 correctly checking networking state from userland.
218 Bump __FreeBSD_version to 800085.
221 MLDv2 and Source-Specific Multicast (SSM) have been merged
222 to the IPv6 stack. VIMAGE hooks are in but not yet used.
223 The implementation of SSM within FreeBSD's IPv6 stack closely
224 follows the IPv4 implementation.
226 For kernel developers:
228 * The most important changes are that the ip6_output() and
229 ip6_input() paths no longer take the IN6_MULTI_LOCK,
230 and this lock has been downgraded to a non-recursive mutex.
232 * As with the changes to the IPv4 stack to support SSM, filtering
233 of inbound multicast traffic must now be performed by transport
234 protocols within the IPv6 stack. This does not apply to TCP and
235 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
237 * The KPIs used by IPv6 multicast are similar to those used by
238 the IPv4 stack, with the following differences:
239 * im6o_mc_filter() is analogous to imo_multicast_filter().
240 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
241 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
242 * IN6_LOOKUP_MULTI() has been deprecated and removed.
243 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
244 for MLDv1 have an additional 'timer' argument which is used to
245 jitter the initial membership report for the solicited-node
246 multicast membership on-link.
247 * This is not strictly needed for MLDv2, which already jitters
248 its report transmissions. However, the 'timer' argument is
249 preserved in case MLDv1 is active on the interface.
251 * The KAME linked-list based IPv6 membership implementation has
252 been refactored to use a vector similar to that used by the IPv4
254 Code which maintains a list of its own multicast memberships
255 internally, e.g. carp, has been updated to reflect the new
258 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
259 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
260 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
261 implementation constraint which needs to be addressed in HEAD.
263 For application developers:
265 * The changes are broadly similar to those made for the IPv4
268 * The use of IPv4 and IPv6 multicast socket options on the same
269 socket, using mapped addresses, HAS NOT been tested or supported.
271 * There are a number of issues with the implementation of various
272 IPv6 multicast APIs which need to be resolved in the API surface
273 before the implementation is fully compatible with KAME userland
274 use, and these are mostly to do with interface index treatment.
276 * The literature available discusses the use of either the delta / ASM
277 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
278 using setsourcefilter(3)/getsourcefilter(3). For more information
279 please refer to RFC 3768, 'Socket Interface Extensions for
280 Multicast Source Filters'.
282 * Applications which use the published RFC 3678 APIs should be fine.
284 For systems administrators:
286 * The mtest(8) utility has been refactored to support IPv6, in
287 addition to IPv4. Interface addresses are no longer accepted
288 as arguments, their names must be used instead. The utility
289 will map the interface name to its first IPv4 address as
290 returned by getifaddrs(3).
292 * The ifmcstat(8) utility has also been updated to print the MLDv2
293 endpoint state and source filter lists via sysctl(3).
295 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
296 loopback of IPv6 multicast datagrams by default; it defaults to 1
297 to preserve the existing behaviour. Disabling multicast loopback is
298 recommended for optimal system performance.
300 * The IPv6 MROUTING code has been changed to examine this sysctl
301 instead of attempting to perform a group lookup before looping
302 back forwarded datagrams.
304 Bump __FreeBSD_version to 800084.
307 Implement low-level Bluetooth HCI API.
308 Bump __FreeBSD_version to 800083.
311 The layout of struct malloc_type, used by modules to register new
312 memory allocation types, has changed. Most modules will need to
313 be rebuilt or panics may be experienced.
314 Bump __FreeBSD_version to 800081.
317 Anticipate overflowing inp_flags - add inp_flags2.
318 This changes most offsets in inpcb, so checking v4 connection
319 state will require a world rebuild.
320 Bump __FreeBSD_version to 800080.
323 Add an llentry to struct route and struct route_in6. Modules
324 embedding a struct route will need to be recompiled.
325 Bump __FreeBSD_version to 800079.
328 The size of rt_metrics_lite and by extension rtentry has changed.
329 Networking administration apps will need to be recompiled.
330 The route command now supports show as an alias for get, weighting
331 of routes, sticky and nostick flags to alter the behavior of stateful
333 Bump __FreeBSD_version to 800078.
336 Do not use Giant for kbdmux(4) locking. This is wrong and
337 apparently causing more problems than it solves. This will
338 re-open the issue where interrupt handlers may race with
339 kbdmux(4) in polling mode. Typical symptoms include (but
340 not limited to) duplicated and/or missing characters when
341 low level console functions (such as gets) are used while
342 interrupts are enabled (for example geli password prompt,
343 mountroot prompt etc.). Disabling kbdmux(4) may help.
346 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
347 kernel modules referencing any of the above need to be recompiled.
348 Bump __FreeBSD_version to 800075.
351 GEOM_PART has become the default partition slicer for storage devices,
352 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
353 introduces some changes:
355 MSDOS/EBR: the devices created from MSDOS extended partition entries
356 (EBR) can be named differently than with GEOM_MBR and are now symlinks
357 to devices with offset-based names. fstabs may need to be modified.
359 BSD: the "geometry does not match label" warning is harmless in most
360 cases but it points to problems in file system misalignment with
361 disk geometry. The "c" partition is now implicit, covers the whole
362 top-level drive and cannot be (mis)used by users.
364 General: Kernel dumps are now not allowed to be written to devices
365 whose partition types indicate they are meant to be used for file
366 systems (or, in case of MSDOS partitions, as something else than
369 Most of these changes date approximately from 200812.
372 The uscanner(4) driver has been removed from the kernel. This follows
373 Linux removing theirs in 2.6 and making libusb the default interface
377 The multicast forwarding code has been cleaned up. netstat(1)
378 only relies on KVM now for printing bandwidth upcall meters.
379 The IPv4 and IPv6 modules are split into ip_mroute_mod and
380 ip6_mroute_mod respectively. The config(5) options for statically
381 compiling this code remain the same, i.e. 'options MROUTING'.
384 Support for the IFF_NEEDSGIANT network interface flag has been
385 removed, which means that non-MPSAFE network device drivers are no
386 longer supported. In particular, if_ar, if_sr, and network device
387 drivers from the old (legacy) USB stack can no longer be built or
391 POSIX.1 Native Language Support (NLS) has been enabled in libc and
392 a bunch of new language catalog files have also been added.
393 This means that some common libc messages are now localized and
394 they depend on the LC_MESSAGES environmental variable.
397 The k8temp(4) driver has been renamed to amdtemp(4) since
398 support for K10 and K11 CPU families was added.
401 IGMPv3 and Source-Specific Multicast (SSM) have been merged
402 to the IPv4 stack. VIMAGE hooks are in but not yet used.
404 For kernel developers, the most important changes are that the
405 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
406 and this lock has been downgraded to a non-recursive mutex.
408 Transport protocols (UDP, Raw IP) are now responsible for filtering
409 inbound multicast traffic according to group membership and source
410 filters. The imo_multicast_filter() KPI exists for this purpose.
411 Transports which do not use multicast (SCTP, TCP) already reject
412 multicast by default. Forwarding and receive performance may improve
413 as a mutex acquisition is no longer needed in the ip_input()
414 low-level input path. in_addmulti() and in_delmulti() are shimmed
415 to new KPIs which exist to support SSM in-kernel.
417 For application developers, it is recommended that loopback of
418 multicast datagrams be disabled for best performance, as this
419 will still cause the lock to be taken for each looped-back
420 datagram transmission. The net.inet.ip.mcast.loop sysctl may
421 be tuned to 0 to disable loopback by default; it defaults to 1
422 to preserve the existing behaviour.
424 For systems administrators, to obtain best performance with
425 multicast reception and multiple groups, it is always recommended
426 that a card with a suitably precise hash filter is used. Hash
427 collisions will still result in the lock being taken within the
428 transport protocol input path to check group membership.
430 If deploying FreeBSD in an environment with IGMP snooping switches,
431 it is recommended that the net.inet.igmp.sendlocal sysctl remain
432 enabled; this forces 224.0.0.0/24 group membership to be announced
435 The size of 'struct igmpstat' has changed; netstat needs to be
436 recompiled to reflect this.
437 Bump __FreeBSD_version to 800070.
440 libusb20.so.1 is now installed as libusb.so.1 and the ports system
441 updated to use it. This requires a buildworld/installworld in order to
442 update the library and dependencies (usbconfig, etc). Its advisable to
443 rebuild all ports which uses libusb. More specific directions are given
444 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
445 libusb are no longer required and can be removed.
448 A workaround is committed to allow the creation of System V shared
449 memory segment of size > 2 GB on the 64-bit architectures.
450 Due to a limitation of the existing ABI, the shm_segsz member
451 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
452 wrong for large segments. Note that limits must be explicitly
453 raised to allow such segments to be created.
456 The layout of struct ifnet has changed, requiring a rebuild of all
457 network device driver modules.
460 The /dev handling for the new USB stack has changed, a
461 buildworld/installworld is required for libusb20.
464 The new USB2 stack has now been permanently moved in and all kernel and
465 module names reverted to their previous values (eg, usb, ehci, ohci,
466 ums, ...). The old usb stack can be compiled in by prefixing the name
467 with the letter 'o', the old usb modules have been removed.
468 Updating entry 20090216 for xorg and 20090215 for libmap may still
472 The rc.conf(5) option if_up_delay has been renamed to
473 defaultroute_delay to better reflect its purpose. If you have
474 customized this setting in /etc/rc.conf you need to update it to
478 xorg 7.4 wants to configure its input devices via hald which does not
479 yet work with USB2. If the keyboard/mouse does not work in xorg then
481 Option "AllowEmptyInput" "off"
482 to your ServerLayout section. This will cause X to use the configured
483 kbd and mouse sections from your xorg.conf.
486 The GENERIC kernels for all architectures now default to the new USB2
487 stack. No kernel config options or code have been removed so if a
488 problem arises please report it and optionally revert to the old USB
489 stack. If you are loading USB kernel modules or have a custom kernel
490 that includes GENERIC then ensure that usb names are also changed over,
491 eg uftdi -> usb2_serial_ftdi.
493 Older programs linked against the ports libusb 0.1 need to be
494 redirected to the new stack's libusb20. /etc/libmap.conf can
496 # Map old usb library to new one for usb2 stack
497 libusb-0.1.so.8 libusb20.so.1
500 The ichsmb(4) driver has been changed to require SMBus slave
501 addresses be left-justified (xxxxxxx0b) rather than right-justified.
502 All of the other SMBus controller drivers require left-justified
503 slave addresses, so this change makes all the drivers provide the
507 INET6 statistics (struct ip6stat) was updated.
508 netstat(1) needs to be recompiled.
511 NTFS has been removed from GENERIC kernel on amd64 to match
512 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
513 will load ntfs.ko module automatically when NTFS support is
514 actually needed, unless ntfs.ko is not installed or security
515 level prohibits loading kernel modules. If either is the case,
516 "options NTFS" has to be added into kernel config.
519 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
520 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
521 800061. User space tools that rely on the size of struct tcpcb in
522 tcp_var.h (e.g. sockstat) need to be recompiled.
525 ng_tty(4) module updated to match the new TTY subsystem.
526 Due to API change, user-level applications must be updated.
527 New API support added to mpd5 CVS and expected to be present
528 in next mpd5.3 release.
531 With __FreeBSD_version 800060 the makefs tool is part of
532 the base system (it was a port).
535 The afdata and ifnet locks have been changed from mutexes to
536 rwlocks, network modules will need to be re-compiled.
539 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
540 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
541 The new code reduced struct rtentry{} by 16 bytes on 32-bit
542 architecture and 40 bytes on 64-bit architecture. The userland
543 applications "arp" and "ndp" have been updated accordingly.
544 The output from "netstat -r" shows only routing entries and
545 none of the L2 information.
548 __FreeBSD_version 800057 marks the switchover from the
549 binary ath hal to source code. Users must add the line:
551 options AH_SUPPORT_AR5416
553 to their kernel config files when specifying:
557 The ath_hal module no longer exists; the code is now compiled
558 together with the driver in the ath module. It is now
559 possible to tailor chip support (i.e. reduce the set of chips
560 and thereby the code size); consult ath_hal(4) for details.
563 __FreeBSD_version 800054 adds memory barriers to
564 <machine/atomic.h>, new interfaces to ifnet to facilitate
565 multiple hardware transmit queues for cards that support
566 them, and a lock-less ring-buffer implementation to
567 enable drivers to more efficiently manage queueing of
571 A new version of ZFS (version 13) has been merged to -HEAD.
572 This version has zpool attribute "listsnapshots" off by
573 default, which means "zfs list" does not show snapshots,
574 and is the same as Solaris behavior.
577 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
580 The uhci, ohci, ehci and slhci USB Host controller drivers have
581 been put into separate modules. If you load the usb module
582 separately through loader.conf you will need to load the
583 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
584 controller add the following to loader.conf:
590 The ABI used by the PMC toolset has changed. Please keep
591 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
595 atapci kernel module now includes only generic PCI ATA
596 driver. AHCI driver moved to ataahci kernel module.
597 All vendor-specific code moved into separate kernel modules:
598 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
599 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
600 atamarvell, atamicron, atanational, atanetcell, atanvidia,
601 atapromise, ataserverworks, atasiliconimage, atasis, atavia
604 The TTY subsystem of the kernel has been replaced by a new
605 implementation, which provides better scalability and an
606 improved driver model. Most common drivers have been migrated to
607 the new TTY subsystem, while others have not. The following
608 drivers have not yet been ported to the new TTY layer:
611 cy, digi, rc, rp, sio
617 ng_h4, ng_tty, ppp, sl, snp
619 Adding these drivers to your kernel configuration file shall
620 cause compilation to fail.
623 ntpd has been upgraded to 4.2.4p5.
626 OpenSSH has been upgraded to 5.1p1.
628 For many years, FreeBSD's version of OpenSSH preferred DSA
629 over RSA for host and user authentication keys. With this
630 upgrade, we've switched to the vendor's default of RSA over
631 DSA. This may cause upgraded clients to warn about unknown
632 host keys even for previously known hosts. Users should
633 follow the usual procedure for verifying host keys before
634 accepting the RSA key.
636 This can be circumvented by setting the "HostKeyAlgorithms"
637 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
640 Please note that the sequence of keys offered for
641 authentication has been changed as well. You may want to
642 specify IdentityFile in a different order to revert this
646 The sio(4) driver has been removed from the i386 and amd64
647 kernel configuration files. This means uart(4) is now the
648 default serial port driver on those platforms as well.
650 To prevent collisions with the sio(4) driver, the uart(4) driver
651 uses different names for its device nodes. This means the
652 onboard serial port will now most likely be called "ttyu0"
653 instead of "ttyd0". You may need to reconfigure applications to
654 use the new device names.
656 When using the serial port as a boot console, be sure to update
657 /boot/device.hints and /etc/ttys before booting the new kernel.
658 If you forget to do so, you can still manually specify the hints
659 at the loader prompt:
661 set hint.uart.0.at="isa"
662 set hint.uart.0.port="0x3F8"
663 set hint.uart.0.flags="0x10"
664 set hint.uart.0.irq="4"
668 The gpt(8) utility has been removed. Use gpart(8) to partition
672 The version that Linuxulator emulates was changed from 2.4.2
673 to 2.6.16. If you experience any problems with Linux binaries
674 please try to set sysctl compat.linux.osrelease to 2.4.2 and
675 if it fixes the problem contact emulation mailing list.
678 ISDN4BSD (I4B) was removed from the src tree. You may need to
679 update a your kernel configuration and remove relevant entries.
682 I have checked in code to support multiple routing tables.
683 See the man pages setfib(1) and setfib(2).
684 This is a hopefully backwards compatible version,
685 but to make use of it you need to compile your kernel
686 with options ROUTETABLES=2 (or more up to 16).
689 The 802.11 wireless support was redone to enable multi-bss
690 operation on devices that are capable. The underlying device
691 is no longer used directly but instead wlanX devices are
692 cloned with ifconfig. This requires changes to rc.conf files.
694 ifconfig_ath0="WPA DHCP"
697 ifconfig_wlan0="WPA DHCP"
698 see rc.conf(5) for more details. In addition, mergemaster of
699 /etc/rc.d is highly recommended. Simultaneous update of userland
700 and kernel wouldn't hurt either.
702 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
703 modules were merged into the base wlan module. All references
704 to these modules (e.g. in kernel config files) must be removed.
707 psm(4) has gained write(2) support in native operation level.
708 Arbitrary commands can be written to /dev/psm%d and status can
709 be read back from it. Therefore, an application is responsible
710 for status validation and error recovery. It is a no-op in
711 other operation levels.
714 Support for KSE threading has been removed from the kernel. To
715 run legacy applications linked against KSE libmap.conf may
716 be used. The following libmap.conf may be used to ensure
717 compatibility with any prior release:
719 libpthread.so.1 libthr.so.1
720 libpthread.so.2 libthr.so.2
721 libkse.so.3 libthr.so.3
724 The layout of struct vmspace has changed. This affects libkvm
725 and any executables that link against libkvm and use the
726 kvm_getprocs() function. In particular, but not exclusively,
727 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
728 The effects are minimal, but it's advisable to upgrade world
732 The latest em driver no longer has support in it for the
733 82575 adapter, this is now moved to the igb driver. The
734 split was done to make new features that are incompatible
735 with older hardware easier to do.
738 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
739 likewise the kernel option is now GEOM_LINUX_LVM.
742 The default NFS mount mode has changed from UDP to TCP for
743 increased reliability. If you rely on (insecurely) NFS
744 mounting across a firewall you may need to update your
748 Belatedly note the addition of m_collapse for compacting
752 The fts(3) structures have been changed to use adequate
753 integer types for their members and so to be able to cope
754 with huge file trees. The old fts(3) ABI is preserved
755 through symbol versioning in libc, so third-party binaries
756 using fts(3) should still work, although they will not take
757 advantage of the extended types. At the same time, some
758 third-party software might fail to build after this change
759 due to unportable assumptions made in its source code about
760 fts(3) structure members. Such software should be fixed
761 by its vendor or, in the worst case, in the ports tree.
762 FreeBSD_version 800015 marks this change for the unlikely
763 case that a portable fix is impossible.
766 To upgrade to -current after this date, you must be running
767 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
768 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
771 The ADAPTIVE_GIANT kernel option has been retired because its
772 functionality is the default now.
775 The AT keyboard emulation of sunkbd(4) has been turned on
776 by default. In order to make the special symbols of the Sun
777 keyboards driven by sunkbd(4) work under X these now have
778 to be configured the same way as Sun USB keyboards driven
779 by ukbd(4) (which also does AT keyboard emulation), f.e.:
781 Option "XkbLayout" "us"
782 Option "XkbRules" "xorg"
783 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
786 It has been decided that it is desirable to provide ABI
787 backwards compatibility to the FreeBSD 4/5/6 versions of the
788 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
789 broken with the introduction of PCI domain support (see the
790 20070930 entry). Unfortunately, this required the ABI of
791 PCIOCGETCONF to be broken again in order to be able to
792 provide backwards compatibility to the old version of that
793 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
794 again. As for prominent ports this affects neither pciutils
795 nor xorg-server this time, the hal port needs to be rebuilt
799 The misnamed kthread_create() and friends have been renamed
800 to kproc_create() etc. Many of the callers already
802 I will return kthread_create() and friends in a while
803 with implementations that actually create threads, not procs.
804 Renaming corresponds with version 800002.
810 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
811 WITHOUT_LIBTHR are set.
814 The PCI code has been made aware of PCI domains. This means that
815 the location strings as used by pciconf(8) etc are now in the
816 following format: pci<domain>:<bus>:<device>[:<function>]. It
817 also means that consumers of <sys/pciio.h> potentially need to
818 be recompiled; this includes the hal and xorg-server ports.
821 The caching daemon (cached) was renamed to nscd. nscd.conf
822 configuration file should be used instead of cached.conf and
823 nscd_enable, nscd_pidfile and nscd_flags options should be used
824 instead of cached_enable, cached_pidfile and cached_flags in
828 The getfacl(1) utility now prints owning user and group name
829 instead of owning uid and gid in the three line comment header.
830 This is the same behavior as getfacl(1) on Solaris and Linux.
833 The new IPsec code is now compiled in using the IPSEC option. The
834 IPSEC option now requires "device crypto" be defined in your kernel
835 configuration. The FAST_IPSEC kernel option is now deprecated.
838 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
839 note the changed syntax - keep state is now on by default. Also
840 note the fact that ftp-proxy(8) has been changed from bottom up and
841 has been moved from libexec to usr/sbin. Changes in the ALTQ
842 handling also affect users of IPFW's ALTQ capabilities.
845 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
846 only IPsec supported by FreeBSD. The new IPsec stack
847 supports both IPv4 and IPv6. The kernel option will change
848 after the code changes have settled in. For now the kernel
849 option IPSEC is deprecated and FAST_IPSEC is the only option, that
850 will change after some settling time.
853 The wicontrol(8) utility has been removed from the base system. wi(4)
854 cards should be configured using ifconfig(8), see the man page for more
858 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
859 instead of the nve(4) driver. Please update your configuration
863 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
864 database if it is missing or older than the aliases file. If
865 desired, set the new rc.conf option sendmail_rebuild_aliases
866 to "YES" to restore that functionality.
869 The IPv4 multicast socket code has been considerably modified, and
870 moved to the file sys/netinet/in_mcast.c. Initial support for the
871 RFC 3678 Source-Specific Multicast Socket API has been added to
872 the IPv4 network stack.
874 Strict multicast and broadcast reception is now the default for
875 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
876 has now been removed.
878 The RFC 1724 hack for interface selection has been removed; the use
879 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
880 been added to replace it. Consumers such as routed will soon be
881 updated to reflect this.
883 These changes affect users who are running routed(8) or rdisc(8)
884 from the FreeBSD base system on point-to-point or unnumbered
888 The net80211 layer has changed significantly and all wireless
889 drivers that depend on it need to be recompiled. Further these
890 changes require that any program that interacts with the wireless
891 support in the kernel be recompiled; this includes: ifconfig,
892 wpa_supplicant, hostapd, and wlanstats. Users must also, for
893 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
894 if they use modules for wireless support. These modules implement
895 scanning support for station and ap modes, respectively. Failure
896 to load the appropriate module before marking a wireless interface
897 up will result in a message to the console and the device not
901 The pam_nologin(8) module ceases to provide an authentication
902 function and starts providing an account management function.
903 Consequent changes to /etc/pam.d should be brought in using
904 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
905 need manual editing as follows. Locate this line (or similar):
907 auth required pam_nologin.so no_warn
909 and change it according to this example:
911 account required pam_nologin.so no_warn
913 That is, the first word needs to be changed from "auth" to
914 "account". The new line can be moved to the account section
915 within the file for clarity. Not updating pam.conf(5) files
916 will result in nologin(5) ignored by the respective services.
919 The ether_ioctl() function has been synchronized with ioctl(2)
920 and ifnet.if_ioctl. Due to that, the size of one of its arguments
921 has changed on 64-bit architectures. All kernel modules using
922 ether_ioctl() need to be rebuilt on such architectures.
925 Improved INCLUDE_CONFIG_FILE support has been introduced to the
926 config(8) utility. In order to take advantage of this new
927 functionality, you are expected to recompile and install
928 src/usr.sbin/config. If you don't rebuild config(8), and your
929 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
930 build will be broken because of a missing "kernconfstring"
934 Symbol versioning is enabled by default. To disable it, use
935 option WITHOUT_SYMVER. It is not advisable to attempt to
936 disable symbol versioning once it is enabled; your installworld
937 will break because a symbol version-less libc will get installed
938 before the install tools. As a result, the old install tools,
939 which previously had symbol dependencies to FBSD_1.0, will fail
940 because the freshly installed libc will not have them.
942 The default threading library (providing "libpthread") has been
943 changed to libthr. If you wish to have libkse as your default,
944 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
947 The ABI breakage in sendmail(8)'s libmilter has been repaired
948 so it is no longer necessary to recompile mail filters (aka,
949 milters). If you recompiled mail filters after the 20070408
950 note, it is not necessary to recompile them again.
953 The new trunk(4) driver has been renamed to lagg(4) as it better
954 reflects its purpose. ifconfig will need to be recompiled.
957 sendmail(8) has been updated to version 8.14.1. Mail filters
958 (aka, milters) compiled against the libmilter included in the
959 base operating system should be recompiled.
962 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
963 In order to use them one must agree to the respective LICENSE in
964 share/doc/legal and define legal.intel_<name>.license_ack=1 via
965 loader.conf(5) or kenv(1). Make sure to deinstall the now
966 deprecated modules from the respective firmware ports.
969 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
970 were removed from FreeBSD's libc. These originally came from INRIA
971 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
972 deprecated in previous releases.
973 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
974 replace it as a more portable (and re-entrant) API.
977 To support interrupt filtering a modification to the newbus API
978 has occurred, ABI was broken and __FreeBSD_version was bumped
979 to 700031. Please make sure that your kernel and modules are in
981 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
984 The IPv6 multicast forwarding code may now be loaded into GENERIC
985 kernels by loading the ip_mroute.ko module. This is built into the
986 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
987 set; see src.conf(5) for more information.
990 The output of netstat -r has changed. Without -n, we now only
991 print a "network name" without the prefix length if the network
992 address and mask exactly match a Class A/B/C network, and an entry
993 exists in the nsswitch "networks" map.
994 With -n, we print the full unabbreviated CIDR network prefix in
995 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
996 This change is in preparation for changes such as equal-cost
997 multipath, and to more generally assist operational deployment
998 of FreeBSD as a modern IPv4 router.
1001 PIM has been turned on by default in the IPv4 multicast
1002 routing code. The kernel option 'PIM' has now been removed.
1003 PIM is now built by default if option 'MROUTING' is specified.
1004 It may now be loaded into GENERIC kernels by loading the
1005 ip_mroute.ko module.
1008 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
1009 has been removed. Its functionality may be achieved by explicitly
1010 configuring gif(4) interfaces and using the 'phyint' keyword in
1012 XORP does not support source-routed IPv4 multicast tunnels nor the
1013 integrated IPIP tunneling, therefore it is not affected by this
1014 change. The __FreeBSD_version macro has been bumped to 700030.
1017 Support for PCI Message Signalled Interrupts has been
1018 re-enabled in the bge driver, only for those chips which are
1019 believed to support it properly. If there are any problems,
1020 MSI can be disabled completely by setting the
1021 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
1025 Support for PCI Message Signalled Interrupts has been
1026 disabled again in the bge driver. Many revisions of the
1027 hardware fail to support it properly. Support can be
1028 re-enabled by removing the #define of BGE_DISABLE_MSI in
1029 "src/sys/dev/bge/if_bge.c".
1032 Support for PCI Message Signalled Interrupts has been added
1033 to the bge driver. If there are any problems, MSI can be
1034 disabled completely by setting the 'hw.pci.enable_msi' and
1035 'hw.pci.enable_msix' tunables to 0 in the loader.
1038 The removal of several facets of the experimental Threading
1039 system from the kernel means that the proc and thread structures
1040 have changed quite a bit. I suggest all kernel modules that might
1041 reference these structures be recompiled.. Especially the
1045 Sound infrastructure has been updated with various fixes and
1046 improvements. Most of the changes are pretty much transparent,
1047 with exceptions of followings:
1048 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
1049 moved to their own dev sysctl nodes, for example:
1050 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
1051 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
1052 own chardev in the form of "dsp%d.<function>%d", where <function>
1053 is p = playback, r = record and v = virtual, respectively. Users
1054 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
1055 This does not affect those who are using "/dev/dsp".
1058 geom(4)'s gmirror(8) class metadata structure has been
1059 rev'd from v3 to v4. If you update across this point and
1060 your metadata is converted for you, you will not be easily
1061 able to downgrade since the /boot/kernel.old/geom_mirror.ko
1062 kernel module will be unable to read the v4 metadata. You
1063 can resolve this by doing from the loader(8) prompt:
1065 set vfs.root.mountfrom="ufs:/dev/XXX"
1067 where XXX is the root slice of one of the disks that composed
1068 the mirror (i.e.: /dev/ad0s1a). You can then rebuild
1069 the array the same way you built it originally.
1072 The following binaries have been disconnected from the build:
1073 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
1074 and mount_std. The functionality of these programs has been
1075 moved into the mount program. For example, to mount a devfs
1076 filesystem, instead of using mount_devfs, use: "mount -t devfs".
1077 This does not affect entries in /etc/fstab, since entries in
1078 /etc/fstab are always processed with "mount -t fstype".
1081 Support for PCI Message Signalled Interrupts on i386 and amd64
1082 has been added to the kernel and various drivers will soon be
1083 updated to use MSI when it is available. If there are any problems,
1084 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
1085 and 'hw.pci.enable_msix' tunables to 0 in the loader.
1088 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
1089 The lockmgr object layout has been changed as a result of having
1090 a lock_object embedded in it. As a consequence all file system
1091 kernel modules must be re-compiled. The mutex profiling man page
1092 has not yet been updated to reflect this change.
1095 KSE in the kernel has now been made optional and turned on by
1096 default. Use 'nooption KSE' in your kernel config to turn it
1097 off. All kernel modules *must* be recompiled after this change.
1098 There-after, modules from a KSE kernel should be compatible with
1099 modules from a NOKSE kernel due to the temporary padding fields
1100 added to 'struct proc'.
1103 mrouted and its utilities have been removed from the base system.
1106 Some ioctl(2) command codes have changed. Full backward ABI
1107 compatibility is provided if the "options COMPAT_FREEBSD6" is
1108 present in the kernel configuration file. Make sure to add
1109 this option to your kernel config file, or recompile X.Org
1110 and the rest of ports; otherwise they may refuse to work.
1113 tcpslice has been removed from the base system.
1116 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
1117 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
1118 systat needs to be rebuilt.
1121 libpcap updated to v0.9.4 and tcpdump to v3.9.4
1124 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
1125 for IPFIREWALL_FORWARD is now as it was before when it was first
1126 committed and for years after. The behaviour is now ON.
1129 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
1130 Now it can decrypt files created from different architectures.
1131 Unfortunately, it is no longer able to decrypt a cipher text
1132 generated with an older version on 64 bit architectures.
1133 If you have such a file, you need old utility to decrypt it.
1136 The interface version of the i4b kernel part has changed. So
1137 after updating the kernel sources and compiling a new kernel,
1138 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
1139 be rebuilt, and vice versa.
1142 The XBOX kernel now defaults to the nfe(4) driver instead of
1143 the nve(4) driver. Please update your configuration
1147 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
1148 PCnet family of NICs has been removed. The new le(4) driver serves
1149 as an equivalent but cross-platform replacement with the pcn(4)
1150 driver still providing performance-optimized support for the subset
1151 of AMD Am79C971 PCnet-FAST and greater chips as before.
1154 The machdep.* sysctls and the adjkerntz utility have been
1155 modified a bit. The new adjkerntz utility uses the new
1156 sysctl names and sysctlbyname() calls, so it may be impossible
1157 to run an old /sbin/adjkerntz utility in single-user mode
1158 with a new kernel. Replace the `adjkerntz -i' step before
1159 `make installworld' with:
1161 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
1163 and proceed as usual with the rest of the installworld-stage
1164 steps. Otherwise, you risk installing binaries with their
1165 timestamp set several hours in the future, especially if
1166 you are running with local time set to GMT+X hours.
1169 The ip6fw utility has been removed. The behavior provided by
1170 ip6fw has been in ipfw2 for a good while and the rc.d scripts
1171 have been updated to deal with it. There are some rules that
1172 might not migrate cleanly. Use rc.firewall6 as a template to
1176 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
1177 attachments have been removed. Make sure to configure scc(4)
1178 on sparc64. Note also that by default puc(4) will use uart(4)
1179 and not sio(4) for serial ports because interrupt handling has
1180 been optimized for multi-port serial cards and only uart(4)
1181 implements the interface to support it.
1184 The scc(4) driver replaces puc(4) for Serial Communications
1185 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
1186 Z8530. On sparc64, it is advised to add scc(4) to the kernel
1187 configuration to make sure that the serial ports remain
1191 Most world/kernel related NO_* build options changed names.
1192 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
1193 after FreeBSD ports) and should be set in /etc/src.conf
1194 (the src.conf(5) manpage is provided). Full backwards
1195 compatibility is maintained for the time being though it's
1196 highly recommended to start moving old options out of the
1197 system-wide /etc/make.conf file into the new /etc/src.conf
1198 while also properly renaming them. More conversions will
1199 likely follow. Posting to current@:
1201 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
1204 The NETSMBCRYPTO kernel option has been retired because its
1205 functionality is always included in NETSMB and smbfs.ko now.
1208 The TDFX_LINUX kernel option was retired and replaced by the
1209 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
1210 kernel module. Loading it alone should suffice to get 3dfx support
1211 for Linux apps because it will pull in 3dfx.ko and linux.ko through
1215 The 'audit' group was added to support the new auditing functionality
1216 in the base system. Be sure to follow the directions for updating,
1217 including the requirement to run mergemaster -p.
1220 The kernel ABI to file system modules was changed on i386.
1221 Please make sure that your kernel and modules are in sync.
1224 This actually occured some time ago, but installing the kernel
1225 now also installs a bunch of symbol files for the kernel modules.
1226 This increases the size of /boot/kernel to about 67Mbytes. You
1227 will need twice this if you will eventually back this up to kernel.old
1228 on your next install.
1229 If you have a shortage of room in your root partition, you should add
1230 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
1231 to your /etc/make.conf.
1234 libc's malloc implementation has been replaced. This change has the
1235 potential to uncover application bugs that previously went unnoticed.
1236 See the malloc(3) manual page for more details.
1239 The generic netgraph(4) cookie has been changed. If you upgrade
1240 kernel passing this point, you also need to upgrade userland
1241 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
1244 si(4)'s device files now contain the unit number.
1245 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
1248 The kernel ABI was mostly destroyed due to a change in the size
1249 of struct lock_object which is nested in other structures such
1250 as mutexes which are nested in all sorts of other structures.
1251 Make sure your kernel and modules are in sync.
1254 The page coloring algorithm in the VM subsystem was converted
1255 from tuning with kernel options to autotuning. Please remove
1256 any PQ_* option except PQ_NOOPT from your kernel config.
1259 The net80211-related tools in the tools/tools/ath directory
1260 have been moved to tools/tools/net80211 and renamed with a
1261 "wlan" prefix. Scripts that use them should be adjusted
1265 Scripts in the local_startup directories (as defined in
1266 /etc/defaults/rc.conf) that have the new rc.d semantics will
1267 now be run as part of the base system rcorder. If there are
1268 errors or problems with one of these local scripts, it could
1269 cause boot problems. If you encounter such problems, boot in
1270 single user mode, remove that script from the */rc.d directory.
1271 Please report the problem to the port's maintainer, and the
1272 freebsd-ports@freebsd.org mailing list.
1275 The nodev mount option was deprecated in RELENG_6 (where it
1276 was a no-op), and is now unsupported. If you have nodev or dev listed
1277 in /etc/fstab, remove it, otherwise it will result in a mount error.
1280 ABI between ipfw(4) and ipfw(8) has been changed. You need
1281 to rebuild ipfw(8) when rebuilding kernel.
1284 rp(4)'s device files now contain the unit number.
1285 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
1288 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
1289 Its /etc/rc.conf.d configuration file has been `ppp' from
1290 the beginning, and hence there is no need to touch it.
1293 Now most modules get their build-time options from the kernel
1294 configuration file. A few modules still have fixed options
1295 due to their non-conformant implementation, but they will be
1296 corrected eventually. You may need to review the options of
1297 the modules in use, explicitly specify the non-default options
1298 in the kernel configuration file, and rebuild the kernel and
1302 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
1303 to turn polling(4) on your interfaces.
1306 The old bridge(4) implementation was retired. The new
1307 if_bridge(4) serves as a full functional replacement.
1310 The ai_addrlen of a struct addrinfo was changed to a socklen_t
1311 to conform to POSIX-2001. This change broke an ABI
1312 compatibility on 64 bit architecture. You have to recompile
1313 userland programs that use getaddrinfo(3) on 64 bit
1317 RELENG_6 branched here.
1320 The pccard_ifconfig rc.conf variable has been removed and a new
1321 variable, ifconfig_DEFAULT has been introduced. Unlike
1322 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
1323 do not have ifconfig_ifn entries rather than just those in
1324 removable_interfaces.
1327 Some previous versions of PAM have permitted the use of
1328 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
1329 to third party PAM modules in /usr/local/lib. A change has been
1330 made to require the use of absolute paths in order to avoid
1331 ambiguity and dependence on library path configuration, which may
1332 affect existing configurations.
1335 Major changes to network interface API. All drivers must be
1336 recompiled. Drivers not in the base system will need to be
1337 updated to the new APIs.
1340 Changes were made to kinfo_proc in sys/user.h. Please recompile
1341 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
1342 will not behave correctly.
1344 The API and ABI for hwpmc(4) have changed with the addition
1345 of sampling support. Please recompile lib/libpmc(3) and
1346 usr.sbin/{pmcstat,pmccontrol}.
1349 The OpenBSD dhclient was imported in place of the ISC dhclient
1350 and the network interface configuration scripts were updated
1351 accordingly. If you use DHCP to configure your interfaces, you
1352 must now run devd. Also, DNS updating was lost so you will need
1353 to find a workaround if you use this feature.
1355 The '_dhcp' user was added to support the OpenBSD dhclient. Be
1356 sure to run mergemaster -p (like you are supposed to do every time
1360 if_bridge was added to the tree. This has changed struct ifnet.
1361 Please recompile userland and all network related modules.
1364 The n_net of a struct netent was changed to an uint32_t, and
1365 1st argument of getnetbyaddr() was changed to an uint32_t, to
1366 conform to POSIX-2001. These changes broke an ABI
1367 compatibility on 64 bit architecture. With these changes,
1368 shlib major of libpcap was bumped. You have to recompile
1369 userland programs that use getnetbyaddr(3), getnetbyname(3),
1370 getnetent(3) and/or libpcap on 64 bit architecture.
1373 Kernel parsing of extra options on '#!' first lines of shell
1374 scripts has changed. Lines with multiple options likely will
1375 fail after this date. For full details, please see
1376 http://people.freebsd.org/~gad/Updating-20050528.txt
1379 The packet filter (pf) code has been updated to OpenBSD 3.7
1380 Please note the changed anchor syntax and the fact that
1381 authpf(8) now needs a mounted fdescfs(5) to function.
1384 The NO_MIXED_MODE kernel option has been removed from the i386
1385 amd64 platforms as its use has been superceded by the new local
1386 APIC timer code. Any kernel config files containing this option
1390 The on-disk format of LC_CTYPE files was changed to be machine
1391 independent. Please make sure NOT to use NO_CLEAN buildworld
1392 when crossing this point. Crossing this point also requires
1393 recompile or reinstall of all locale depended packages.
1396 The ifi_epoch member of struct if_data has been changed to
1397 contain the uptime at which the interface was created or the
1398 statistics zeroed rather then the wall clock time because
1399 wallclock time may go backwards. This should have no impact
1400 unless an snmp implementation is using this value (I know of
1401 none at this point.)
1404 The acpi_perf and acpi_throttle drivers are now part of the
1405 acpi(4) main module. They are no longer built separately.
1408 The layout of struct image_params has changed. You have to
1409 recompile all compatibility modules (linux, svr4, etc) for use
1410 with the new kernel.
1413 The p4tcc driver has been merged into cpufreq(4). This makes
1414 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
1415 compile in "device cpufreq" to restore this functionality.
1418 The responsibility of recomputing the file system summary of
1419 a SoftUpdates-enabled dirty volume has been transferred to the
1420 background fsck. A rebuild of fsck(8) utility is recommended
1421 if you have updated the kernel.
1423 To get the old behavior (recompute file system summary at mount
1424 time), you can set vfs.ffs.compute_summary_at_mount=1 before
1425 mounting the new volume.
1428 The cpufreq import is complete. As part of this, the sysctls for
1429 acpi(4) throttling have been removed. The power_profile script
1430 has been updated, so you can use performance/economy_cpu_freq in
1431 rc.conf(5) to set AC on/offline cpu frequencies.
1434 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
1435 requires recompiling libnetgraph and userland netgraph utilities.
1438 Support for abbreviated forms of a number of ipfw options is
1439 now deprecated. Warnings are printed to stderr indicating the
1440 correct full form when a match occurs. Some abbreviations may
1441 be supported at a later date based on user feedback. To be
1442 considered for support, abbreviations must be in use prior to
1443 this commit and unlikely to be confused with current key words.
1446 By a popular demand, a lot of NOFOO options were renamed
1447 to NO_FOO (see bsd.compat.mk for a full list). The old
1448 spellings are still supported, but will cause annoying
1449 warnings on stderr. Make sure you upgrade properly (see
1450 the COMMON ITEMS: section later in this file).
1453 Auto-loading of ancillary wlan modules such as wlan_wep has
1454 been temporarily disabled; you need to statically configure
1455 the modules you need into your kernel or explicitly load them
1456 prior to use. Specifically, if you intend to use WEP encryption
1457 with an 802.11 device load/configure wlan_wep; if you want to
1458 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
1459 and wlan_xauth as required.
1462 The behaviour of ppp(8) has changed slightly. If lqr is enabled
1463 (``enable lqr''), older versions would revert to LCP ECHO mode on
1464 negotiation failure. Now, ``enable echo'' is required for this
1465 behaviour. The ppp version number has been bumped to 3.4.2 to
1469 The wlan support has been updated to split the crypto support
1470 into separate modules. For static WEP you must configure the
1471 wlan_wep module in your system or build and install the module
1472 in place where it can be loaded (the kernel will auto-load
1473 the module when a wep key is configured).
1476 The ath driver has been updated to split the tx rate control
1477 algorithm into a separate module. You need to include either
1478 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
1481 Support for systems with an 80386 CPU has been removed. Please
1482 use FreeBSD 5.x or earlier on systems with an 80386.
1485 We have had a hack which would mount the root filesystem
1486 R/W if the device were named 'md*'. As part of the vnode
1487 work I'm doing I have had to remove this hack. People
1488 building systems which use preloaded MD root filesystems
1489 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
1490 their /etc/rc scripts.
1493 FreeBSD 5.3 shipped here.
1496 The size of struct tcpcb has changed again due to the removal
1497 of RFC1644 T/TCP. You have to recompile userland programs that
1498 read kmem for tcp sockets directly (netstat, sockstat, etc.)
1501 The size of struct tcpcb has changed. You have to recompile
1502 userland programs that read kmem for tcp sockets directly
1503 (netstat, sockstat, etc.)
1506 RELENG_5 branched here. For older entries, please see updating
1507 in the RELENG_5 branch.
1513 Avoid using make -j when upgrading. From time to time in the
1514 past there have been problems using -j with buildworld and/or
1515 installworld. This is especially true when upgrading between
1516 "distant" versions (eg one that cross a major release boundary
1517 or several minor releases, or when several months have passed
1518 on the -current branch).
1520 Sometimes, obscure build problems are the result of environment
1521 poisoning. This can happen because the make utility reads its
1522 environment when searching for values for global variables.
1523 To run your build attempts in an "environmental clean room",
1524 prefix all make commands with 'env -i '. See the env(1) manual
1525 page for more details.
1527 When upgrading from one major version to another it is generally
1528 best to upgrade to the latest code in the currently installed branch
1529 first, then do an upgrade to the new branch. This is the best-tested
1530 upgrade path, and has the highest probability of being successful.
1531 Please try this approach before reporting problems with a major
1536 If you are updating from a prior version of FreeBSD (even one just
1537 a few days old), you should follow this procedure. It is the most
1538 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
1540 make kernel-toolchain
1541 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
1542 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
1544 To test a kernel once
1545 ---------------------
1546 If you just want to boot a kernel once (because you are not sure
1547 if it works, or if you want to boot a known bad kernel to provide
1548 debugging information) run
1549 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
1550 nextboot -k testkernel
1552 To just build a kernel when you know that it won't mess you up
1553 --------------------------------------------------------------
1554 This assumes you are already running a 5.X system. Replace
1555 ${arch} with the architecture of your machine (e.g. "i386",
1556 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
1558 cd src/sys/${arch}/conf
1559 config KERNEL_NAME_HERE
1560 cd ../compile/KERNEL_NAME_HERE
1565 If this fails, go to the "To build a kernel" section.
1567 To rebuild everything and install it on the current system.
1568 -----------------------------------------------------------
1569 # Note: sometimes if you are running current you gotta do more than
1570 # is listed here if you are upgrading from a really old current.
1572 <make sure you have good level 0 dumps>
1574 make kernel KERNCONF=YOUR_KERNEL_HERE
1576 <reboot in single user> [3]
1584 To cross-install current onto a separate partition
1585 --------------------------------------------------
1586 # In this approach we use a separate partition to hold
1587 # current's root, 'usr', and 'var' directories. A partition
1588 # holding "/", "/usr" and "/var" should be about 2GB in
1591 <make sure you have good level 0 dumps>
1594 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1595 <maybe newfs current's root partition>
1596 <mount current's root partition on directory ${CURRENT_ROOT}>
1597 make installworld DESTDIR=${CURRENT_ROOT}
1598 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1599 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1600 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
1601 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1602 <reboot into current>
1603 <do a "native" rebuild/install as described in the previous section>
1604 <maybe install compatibility libraries from ports/misc/compat*>
1608 To upgrade in-place from 5.x-stable to current
1609 ----------------------------------------------
1610 <make sure you have good level 0 dumps>
1612 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
1614 <reboot in single user> [3]
1621 Make sure that you've read the UPDATING file to understand the
1622 tweaks to various things you need. At this point in the life
1623 cycle of current, things change often and you are on your own
1624 to cope. The defaults can also change, so please read ALL of
1625 the UPDATING entries.
1627 Also, if you are tracking -current, you must be subscribed to
1628 freebsd-current@freebsd.org. Make sure that before you update
1629 your sources that you have read and understood all the recent
1630 messages there. If in doubt, please track -stable which has
1631 much fewer pitfalls.
1633 [1] If you have third party modules, such as vmware, you
1634 should disable them at this point so they don't crash your
1637 [3] From the bootblocks, boot -s, and then do
1642 adjkerntz -i # if CMOS is wall time
1643 Also, when doing a major release upgrade, it is required that
1644 you boot into single user mode to do the installworld.
1646 [4] Note: This step is non-optional. Failure to do this step
1647 can result in a significant reduction in the functionality of the
1648 system. Attempting to do it by hand is not recommended and those
1649 that pursue this avenue should read this file carefully, as well
1650 as the archives of freebsd-current and freebsd-hackers mailing lists
1651 for potential gotchas.
1653 [5] Usually this step is a noop. However, from time to time
1654 you may need to do this if you get unknown user in the following
1655 step. It never hurts to do it all the time. You may need to
1656 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1657 install) after the buildworld before this step if you last updated
1658 from current before 20020224 or from -stable before 20020408.
1660 [8] In order to have a kernel that can run the 4.x binaries
1661 needed to do an installworld, you must include the COMPAT_FREEBSD4
1662 option in your kernel. Failure to do so may leave you with a system
1663 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
1664 is required to run the 5.x binaries on more recent kernels.
1666 Make sure that you merge any new devices from GENERIC since the
1667 last time you updated your kernel config file.
1669 [9] When checking out sources, you must include the -P flag to have
1670 cvs prune empty directories.
1672 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1673 "?=" instead of the "=" assignment operator, so that buildworld can
1674 override the CPUTYPE if it needs to.
1676 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1677 not on the command line, or in /etc/make.conf. buildworld will
1678 warn if it is improperly defined.
1681 This file contains a list, in reverse chronological order, of major
1682 breakages in tracking -current. Not all things will be listed here,
1683 and it only starts on October 16, 2004. Updating files can found in
1684 previous releases if your system is older than this.
1686 Copyright information:
1688 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
1690 Redistribution, publication, translation and use, with or without
1691 modification, in full or in part, in any form or format of this
1692 document are permitted without further permission from the author.
1694 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1695 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1696 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1697 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1698 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1699 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1700 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1701 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1702 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1703 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1704 POSSIBILITY OF SUCH DAMAGE.
1706 If you find this document useful, and you want to, you may buy the
1709 Contact Warner Losh if you have any questions about your use of