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 20101129: p6 FreeBSD-SA-10:10.openssl
19 Fix OpenSSL multiple vulnerabilities.
21 20100920: p5 FreeBSD-SA-10:08.bzip2
22 Fix an integer overflow in RLE length parsing when decompressing
25 20100713: p4 FreeBSD-SA-10:07.mbuf
26 Correctly copy the M_RDONLY flag when duplicating a reference
27 to an mbuf external buffer.
29 20100526: p3 FreeBSD-SA-10:04.jail, FreeBSD-SA-10:05.opie,
30 FreeBSD-SA-10:06.nfsclient
31 Change the current working directory to be inside the jail created by
32 the jail(8) command. [10:04]
34 Fix a one-NUL-byte buffer overflow in libopie. [10:05]
36 Correctly sanity-check a buffer length in nfs mount. [10:06]
38 20100106: p2 FreeBSD-SA-10:01.bind, FreeBSD-SA-10:02.ntpd,
39 FreeBSD-SA-10:03.zfs, FreeBSD-EN-10:01.freebsd
40 Fix BIND named(8) cache poisoning with DNSSEC validation.
43 Fix ntpd mode 7 denial of service. [SA-10:02]
45 Fix ZFS ZIL playback with insecure permissions. [SA-10:03]
47 Various FreeBSD 8.0-RELEASE improvements. [EN-10:01]
49 20091203: p1 FreeBSD-SA-09:15.ssl, FreeBSD-SA-09:16.rtld,
50 FreeBSD-SA-09:17.freebsd-update
51 Disable SSL renegotiation in order to protect against a serious
52 protocol flaw. [09:15]
54 Correctly handle failures from unsetenv resulting from a corrupt
55 environment in rtld-elf. [09:16]
57 Fix permissions in freebsd-update in order to prevent leakage of
58 sensitive files. [09:17]
64 802.11s D3.03 support was committed. This is incompatible with
65 the previous code, which was based on D3.0.
68 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
69 mount(8) and -a option for df(1) to see them.
72 Remove the option STOP_NMI. The default action is now to use NMI
73 only for KDB via the newly introduced function stop_cpus_hard()
74 and maintain stop_cpus() to just use a normal IPI_STOP on ia32
81 Bump the shared library version numbers for all libraries that
82 do not use symbol versioning as part of the 8.0-RELEASE cycle.
83 Bump __FreeBSD_version to 800105.
86 Due to changes in the implementation of virtual network stack
87 support, all network-related kernel modules must be recompiled.
88 As this change breaks the ABI, bump __FreeBSD_version to 800104.
91 The TOE interface to the TCP syncache has been modified to remove struct
92 tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. The
93 cxgb driver is the only TOE consumer affected by this change, and needs
94 to be recompiled along with the kernel. As this change breaks the ABI,
95 bump __FreeBSD_version to 800103.
98 Padding has been added to struct tcpcb, sackhint and tcpstat in
99 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
100 maintainig the ABI. However, this change breaks the ABI, so bump
101 __FreeBSD_version to 800102. User space tools that rely on the size of
102 any of these structs (e.g. sockstat) need to be recompiled.
105 The NFS_LEGACYRPC option has been removed along with the old
106 kernel RPC implementation that this option selected. Kernel
107 configurations may need to be adjusted.
110 The network interface device nodes at /dev/net/<interface> have
111 been removed. All ioctl operations can be performed the normal
112 way using routing sockets. The kqueue functionality can
113 generally be replaced with routing sockets.
116 The documentation from the FreeBSD Documentation Project
117 (Handbook, FAQ, etc.) is now installed via packages by
118 sysinstall(8) and under the /usr/local/share/doc/freebsd
119 directory instead of /usr/share/doc.
122 The ABI of various structures related to the SYSV IPC API have
123 been changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43
124 kernel options now all require COMPAT_FREEBSD7.
125 Bump __FreeBSD_version to 800100.
128 Layout of struct vnet has changed as routing related variables
129 were moved to their own Vimage module. Modules need to be
130 recompiled. Bump __FreeBSD_version to 800099.
133 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023
134 and 1024 respectively. As long as no more than 16 groups per
135 process are used, no changes should be visible. When more
136 than 16 groups are used, old binaries may fail if they call
137 getgroups() or getgrouplist() with statically sized storage.
138 Recompiling will work around this, but applications should be
139 modified to use dynamically allocated storage for group arrays
140 as POSIX.1-2008 does not cap an implementation's number of
141 supported groups at NGROUPS_MAX+1 as previous versions did.
143 NFS and portalfs mounts may also be affected as the list of
144 groups is truncated to 16. Users of NFS who use more than 16
145 groups, should take care that negative group permissions are not
146 used on the exported file systems as they will not be reliable
147 unless a GSSAPI based authentication method is used.
150 The compiling option ADAPTIVE_LOCKMGRS has been introduced.
151 This option compiles in the support for adaptive spinning for lockmgrs
152 which want to enable it. The lockinit() function now accepts the
153 flag LK_ADAPTIVE in order to make the lock object subject to
154 adaptive spinning when both held in write and read mode.
157 The layout of the structure returned by IEEE80211_IOC_STA_INFO
158 has changed. User applications that use this ioctl need to be
162 The layout of struct thread has changed. Kernel and modules
166 The layout of structs ifnet, domain, protosw and vnet_net has
167 changed. Kernel modules need to be rebuilt.
168 Bump __FreeBSD_version to 800097.
171 window(1) has been removed from the base system. It can now be
172 installed from ports. The port is called misc/window.
175 The way we are storing and accessing `routing table' entries
176 has changed. Programs reading the FIB, like netstat, need to
180 A new netisr implementation has been added for FreeBSD 8. Network
181 file system modules, such as igmp, ipdivert, and others, should be
183 Bump __FreeBSD_version to 800096.
186 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose
190 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
191 Bump __FreeBSD_version to 800094.
194 Add mnt_xflag field to 'struct mount'. File system modules
196 Bump __FreeBSD_version to 800093.
199 The compiling option ADAPTIVE_SX has been retired while it has been
200 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
201 The KPI for sx_init_flags() changes as accepting flags:
202 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag
203 has been introduced in order to handle the reversed logic.
204 Bump __FreeBSD_version to 800092.
207 Add support for hierarchical jails. Remove global securelevel.
208 Bump __FreeBSD_version to 800091.
211 The layout of struct vnet_net has changed, therefore modules
213 Bump __FreeBSD_version to 800090.
216 The newly imported zic(8) produces a new format in the
217 output. Please run tzsetup(8) to install the newly created
218 data to /etc/localtime.
221 The sysctl tree for the usb stack has renamed from hw.usb2.* to
222 hw.usb.* and is now consistent again with previous releases.
225 802.11 monitor mode support was revised and driver api's
226 were changed. Drivers dependent on net80211 now support
227 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No
228 user-visible data structures were changed but applications
229 that use DLT_IEEE802_11 may require changes.
230 Bump __FreeBSD_version to 800088.
233 The layout of the following structs has changed: sysctl_oid,
234 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
235 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
236 panics may be experienced. World rebuild is required for
237 correctly checking networking state from userland.
238 Bump __FreeBSD_version to 800085.
241 MLDv2 and Source-Specific Multicast (SSM) have been merged
242 to the IPv6 stack. VIMAGE hooks are in but not yet used.
243 The implementation of SSM within FreeBSD's IPv6 stack closely
244 follows the IPv4 implementation.
246 For kernel developers:
248 * The most important changes are that the ip6_output() and
249 ip6_input() paths no longer take the IN6_MULTI_LOCK,
250 and this lock has been downgraded to a non-recursive mutex.
252 * As with the changes to the IPv4 stack to support SSM, filtering
253 of inbound multicast traffic must now be performed by transport
254 protocols within the IPv6 stack. This does not apply to TCP and
255 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
257 * The KPIs used by IPv6 multicast are similar to those used by
258 the IPv4 stack, with the following differences:
259 * im6o_mc_filter() is analogous to imo_multicast_filter().
260 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
261 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
262 * IN6_LOOKUP_MULTI() has been deprecated and removed.
263 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
264 for MLDv1 have an additional 'timer' argument which is used to
265 jitter the initial membership report for the solicited-node
266 multicast membership on-link.
267 * This is not strictly needed for MLDv2, which already jitters
268 its report transmissions. However, the 'timer' argument is
269 preserved in case MLDv1 is active on the interface.
271 * The KAME linked-list based IPv6 membership implementation has
272 been refactored to use a vector similar to that used by the IPv4
274 Code which maintains a list of its own multicast memberships
275 internally, e.g. carp, has been updated to reflect the new
278 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
279 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
280 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
281 implementation constraint which needs to be addressed in HEAD.
283 For application developers:
285 * The changes are broadly similar to those made for the IPv4
288 * The use of IPv4 and IPv6 multicast socket options on the same
289 socket, using mapped addresses, HAS NOT been tested or supported.
291 * There are a number of issues with the implementation of various
292 IPv6 multicast APIs which need to be resolved in the API surface
293 before the implementation is fully compatible with KAME userland
294 use, and these are mostly to do with interface index treatment.
296 * The literature available discusses the use of either the delta / ASM
297 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
298 using setsourcefilter(3)/getsourcefilter(3). For more information
299 please refer to RFC 3768, 'Socket Interface Extensions for
300 Multicast Source Filters'.
302 * Applications which use the published RFC 3678 APIs should be fine.
304 For systems administrators:
306 * The mtest(8) utility has been refactored to support IPv6, in
307 addition to IPv4. Interface addresses are no longer accepted
308 as arguments, their names must be used instead. The utility
309 will map the interface name to its first IPv4 address as
310 returned by getifaddrs(3).
312 * The ifmcstat(8) utility has also been updated to print the MLDv2
313 endpoint state and source filter lists via sysctl(3).
315 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
316 loopback of IPv6 multicast datagrams by default; it defaults to 1
317 to preserve the existing behaviour. Disabling multicast loopback is
318 recommended for optimal system performance.
320 * The IPv6 MROUTING code has been changed to examine this sysctl
321 instead of attempting to perform a group lookup before looping
322 back forwarded datagrams.
324 Bump __FreeBSD_version to 800084.
327 Implement low-level Bluetooth HCI API.
328 Bump __FreeBSD_version to 800083.
331 The layout of struct malloc_type, used by modules to register new
332 memory allocation types, has changed. Most modules will need to
333 be rebuilt or panics may be experienced.
334 Bump __FreeBSD_version to 800081.
337 Anticipate overflowing inp_flags - add inp_flags2.
338 This changes most offsets in inpcb, so checking v4 connection
339 state will require a world rebuild.
340 Bump __FreeBSD_version to 800080.
343 Add an llentry to struct route and struct route_in6. Modules
344 embedding a struct route will need to be recompiled.
345 Bump __FreeBSD_version to 800079.
348 The size of rt_metrics_lite and by extension rtentry has changed.
349 Networking administration apps will need to be recompiled.
350 The route command now supports show as an alias for get, weighting
351 of routes, sticky and nostick flags to alter the behavior of stateful
353 Bump __FreeBSD_version to 800078.
356 Do not use Giant for kbdmux(4) locking. This is wrong and
357 apparently causing more problems than it solves. This will
358 re-open the issue where interrupt handlers may race with
359 kbdmux(4) in polling mode. Typical symptoms include (but
360 not limited to) duplicated and/or missing characters when
361 low level console functions (such as gets) are used while
362 interrupts are enabled (for example geli password prompt,
363 mountroot prompt etc.). Disabling kbdmux(4) may help.
366 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
367 kernel modules referencing any of the above need to be recompiled.
368 Bump __FreeBSD_version to 800075.
371 GEOM_PART has become the default partition slicer for storage devices,
372 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
373 introduces some changes:
375 MSDOS/EBR: the devices created from MSDOS extended partition entries
376 (EBR) can be named differently than with GEOM_MBR and are now symlinks
377 to devices with offset-based names. fstabs may need to be modified.
379 BSD: the "geometry does not match label" warning is harmless in most
380 cases but it points to problems in file system misalignment with
381 disk geometry. The "c" partition is now implicit, covers the whole
382 top-level drive and cannot be (mis)used by users.
384 General: Kernel dumps are now not allowed to be written to devices
385 whose partition types indicate they are meant to be used for file
386 systems (or, in case of MSDOS partitions, as something else than
389 Most of these changes date approximately from 200812.
392 The uscanner(4) driver has been removed from the kernel. This follows
393 Linux removing theirs in 2.6 and making libusb the default interface
397 The multicast forwarding code has been cleaned up. netstat(1)
398 only relies on KVM now for printing bandwidth upcall meters.
399 The IPv4 and IPv6 modules are split into ip_mroute_mod and
400 ip6_mroute_mod respectively. The config(5) options for statically
401 compiling this code remain the same, i.e. 'options MROUTING'.
404 Support for the IFF_NEEDSGIANT network interface flag has been
405 removed, which means that non-MPSAFE network device drivers are no
406 longer supported. In particular, if_ar, if_sr, and network device
407 drivers from the old (legacy) USB stack can no longer be built or
411 POSIX.1 Native Language Support (NLS) has been enabled in libc and
412 a bunch of new language catalog files have also been added.
413 This means that some common libc messages are now localized and
414 they depend on the LC_MESSAGES environmental variable.
417 The k8temp(4) driver has been renamed to amdtemp(4) since
418 support for K10 and K11 CPU families was added.
421 IGMPv3 and Source-Specific Multicast (SSM) have been merged
422 to the IPv4 stack. VIMAGE hooks are in but not yet used.
424 For kernel developers, the most important changes are that the
425 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
426 and this lock has been downgraded to a non-recursive mutex.
428 Transport protocols (UDP, Raw IP) are now responsible for filtering
429 inbound multicast traffic according to group membership and source
430 filters. The imo_multicast_filter() KPI exists for this purpose.
431 Transports which do not use multicast (SCTP, TCP) already reject
432 multicast by default. Forwarding and receive performance may improve
433 as a mutex acquisition is no longer needed in the ip_input()
434 low-level input path. in_addmulti() and in_delmulti() are shimmed
435 to new KPIs which exist to support SSM in-kernel.
437 For application developers, it is recommended that loopback of
438 multicast datagrams be disabled for best performance, as this
439 will still cause the lock to be taken for each looped-back
440 datagram transmission. The net.inet.ip.mcast.loop sysctl may
441 be tuned to 0 to disable loopback by default; it defaults to 1
442 to preserve the existing behaviour.
444 For systems administrators, to obtain best performance with
445 multicast reception and multiple groups, it is always recommended
446 that a card with a suitably precise hash filter is used. Hash
447 collisions will still result in the lock being taken within the
448 transport protocol input path to check group membership.
450 If deploying FreeBSD in an environment with IGMP snooping switches,
451 it is recommended that the net.inet.igmp.sendlocal sysctl remain
452 enabled; this forces 224.0.0.0/24 group membership to be announced
455 The size of 'struct igmpstat' has changed; netstat needs to be
456 recompiled to reflect this.
457 Bump __FreeBSD_version to 800070.
460 libusb20.so.1 is now installed as libusb.so.1 and the ports system
461 updated to use it. This requires a buildworld/installworld in order to
462 update the library and dependencies (usbconfig, etc). Its advisable to
463 rebuild all ports which uses libusb. More specific directions are given
464 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
465 libusb are no longer required and can be removed.
468 A workaround is committed to allow the creation of System V shared
469 memory segment of size > 2 GB on the 64-bit architectures.
470 Due to a limitation of the existing ABI, the shm_segsz member
471 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
472 wrong for large segments. Note that limits must be explicitly
473 raised to allow such segments to be created.
476 The layout of struct ifnet has changed, requiring a rebuild of all
477 network device driver modules.
480 The /dev handling for the new USB stack has changed, a
481 buildworld/installworld is required for libusb20.
484 The new USB2 stack has now been permanently moved in and all kernel and
485 module names reverted to their previous values (eg, usb, ehci, ohci,
486 ums, ...). The old usb stack can be compiled in by prefixing the name
487 with the letter 'o', the old usb modules have been removed.
488 Updating entry 20090216 for xorg and 20090215 for libmap may still
492 The rc.conf(5) option if_up_delay has been renamed to
493 defaultroute_delay to better reflect its purpose. If you have
494 customized this setting in /etc/rc.conf you need to update it to
498 xorg 7.4 wants to configure its input devices via hald which does not
499 yet work with USB2. If the keyboard/mouse does not work in xorg then
501 Option "AllowEmptyInput" "off"
502 to your ServerLayout section. This will cause X to use the configured
503 kbd and mouse sections from your xorg.conf.
506 The GENERIC kernels for all architectures now default to the new USB2
507 stack. No kernel config options or code have been removed so if a
508 problem arises please report it and optionally revert to the old USB
509 stack. If you are loading USB kernel modules or have a custom kernel
510 that includes GENERIC then ensure that usb names are also changed over,
511 eg uftdi -> usb2_serial_ftdi.
513 Older programs linked against the ports libusb 0.1 need to be
514 redirected to the new stack's libusb20. /etc/libmap.conf can
516 # Map old usb library to new one for usb2 stack
517 libusb-0.1.so.8 libusb20.so.1
520 The ichsmb(4) driver has been changed to require SMBus slave
521 addresses be left-justified (xxxxxxx0b) rather than right-justified.
522 All of the other SMBus controller drivers require left-justified
523 slave addresses, so this change makes all the drivers provide the
527 INET6 statistics (struct ip6stat) was updated.
528 netstat(1) needs to be recompiled.
531 NTFS has been removed from GENERIC kernel on amd64 to match
532 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
533 will load ntfs.ko module automatically when NTFS support is
534 actually needed, unless ntfs.ko is not installed or security
535 level prohibits loading kernel modules. If either is the case,
536 "options NTFS" has to be added into kernel config.
539 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
540 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
541 800061. User space tools that rely on the size of struct tcpcb in
542 tcp_var.h (e.g. sockstat) need to be recompiled.
545 ng_tty(4) module updated to match the new TTY subsystem.
546 Due to API change, user-level applications must be updated.
547 New API support added to mpd5 CVS and expected to be present
548 in next mpd5.3 release.
551 With __FreeBSD_version 800060 the makefs tool is part of
552 the base system (it was a port).
555 The afdata and ifnet locks have been changed from mutexes to
556 rwlocks, network modules will need to be re-compiled.
559 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
560 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
561 The new code reduced struct rtentry{} by 16 bytes on 32-bit
562 architecture and 40 bytes on 64-bit architecture. The userland
563 applications "arp" and "ndp" have been updated accordingly.
564 The output from "netstat -r" shows only routing entries and
565 none of the L2 information.
568 __FreeBSD_version 800057 marks the switchover from the
569 binary ath hal to source code. Users must add the line:
571 options AH_SUPPORT_AR5416
573 to their kernel config files when specifying:
577 The ath_hal module no longer exists; the code is now compiled
578 together with the driver in the ath module. It is now
579 possible to tailor chip support (i.e. reduce the set of chips
580 and thereby the code size); consult ath_hal(4) for details.
583 __FreeBSD_version 800054 adds memory barriers to
584 <machine/atomic.h>, new interfaces to ifnet to facilitate
585 multiple hardware transmit queues for cards that support
586 them, and a lock-less ring-buffer implementation to
587 enable drivers to more efficiently manage queueing of
591 A new version of ZFS (version 13) has been merged to -HEAD.
592 This version has zpool attribute "listsnapshots" off by
593 default, which means "zfs list" does not show snapshots,
594 and is the same as Solaris behavior.
597 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
600 The uhci, ohci, ehci and slhci USB Host controller drivers have
601 been put into separate modules. If you load the usb module
602 separately through loader.conf you will need to load the
603 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
604 controller add the following to loader.conf:
610 The ABI used by the PMC toolset has changed. Please keep
611 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
615 atapci kernel module now includes only generic PCI ATA
616 driver. AHCI driver moved to ataahci kernel module.
617 All vendor-specific code moved into separate kernel modules:
618 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
619 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
620 atamarvell, atamicron, atanational, atanetcell, atanvidia,
621 atapromise, ataserverworks, atasiliconimage, atasis, atavia
624 The TTY subsystem of the kernel has been replaced by a new
625 implementation, which provides better scalability and an
626 improved driver model. Most common drivers have been migrated to
627 the new TTY subsystem, while others have not. The following
628 drivers have not yet been ported to the new TTY layer:
631 cy, digi, rc, rp, sio
637 ng_h4, ng_tty, ppp, sl, snp
639 Adding these drivers to your kernel configuration file shall
640 cause compilation to fail.
643 ntpd has been upgraded to 4.2.4p5.
646 OpenSSH has been upgraded to 5.1p1.
648 For many years, FreeBSD's version of OpenSSH preferred DSA
649 over RSA for host and user authentication keys. With this
650 upgrade, we've switched to the vendor's default of RSA over
651 DSA. This may cause upgraded clients to warn about unknown
652 host keys even for previously known hosts. Users should
653 follow the usual procedure for verifying host keys before
654 accepting the RSA key.
656 This can be circumvented by setting the "HostKeyAlgorithms"
657 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
660 Please note that the sequence of keys offered for
661 authentication has been changed as well. You may want to
662 specify IdentityFile in a different order to revert this
666 The sio(4) driver has been removed from the i386 and amd64
667 kernel configuration files. This means uart(4) is now the
668 default serial port driver on those platforms as well.
670 To prevent collisions with the sio(4) driver, the uart(4) driver
671 uses different names for its device nodes. This means the
672 onboard serial port will now most likely be called "ttyu0"
673 instead of "ttyd0". You may need to reconfigure applications to
674 use the new device names.
676 When using the serial port as a boot console, be sure to update
677 /boot/device.hints and /etc/ttys before booting the new kernel.
678 If you forget to do so, you can still manually specify the hints
679 at the loader prompt:
681 set hint.uart.0.at="isa"
682 set hint.uart.0.port="0x3F8"
683 set hint.uart.0.flags="0x10"
684 set hint.uart.0.irq="4"
688 The gpt(8) utility has been removed. Use gpart(8) to partition
692 The version that Linuxulator emulates was changed from 2.4.2
693 to 2.6.16. If you experience any problems with Linux binaries
694 please try to set sysctl compat.linux.osrelease to 2.4.2 and
695 if it fixes the problem contact emulation mailing list.
698 ISDN4BSD (I4B) was removed from the src tree. You may need to
699 update a your kernel configuration and remove relevant entries.
702 I have checked in code to support multiple routing tables.
703 See the man pages setfib(1) and setfib(2).
704 This is a hopefully backwards compatible version,
705 but to make use of it you need to compile your kernel
706 with options ROUTETABLES=2 (or more up to 16).
709 The 802.11 wireless support was redone to enable multi-bss
710 operation on devices that are capable. The underlying device
711 is no longer used directly but instead wlanX devices are
712 cloned with ifconfig. This requires changes to rc.conf files.
714 ifconfig_ath0="WPA DHCP"
717 ifconfig_wlan0="WPA DHCP"
718 see rc.conf(5) for more details. In addition, mergemaster of
719 /etc/rc.d is highly recommended. Simultaneous update of userland
720 and kernel wouldn't hurt either.
722 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
723 modules were merged into the base wlan module. All references
724 to these modules (e.g. in kernel config files) must be removed.
727 psm(4) has gained write(2) support in native operation level.
728 Arbitrary commands can be written to /dev/psm%d and status can
729 be read back from it. Therefore, an application is responsible
730 for status validation and error recovery. It is a no-op in
731 other operation levels.
734 Support for KSE threading has been removed from the kernel. To
735 run legacy applications linked against KSE libmap.conf may
736 be used. The following libmap.conf may be used to ensure
737 compatibility with any prior release:
739 libpthread.so.1 libthr.so.1
740 libpthread.so.2 libthr.so.2
741 libkse.so.3 libthr.so.3
744 The layout of struct vmspace has changed. This affects libkvm
745 and any executables that link against libkvm and use the
746 kvm_getprocs() function. In particular, but not exclusively,
747 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
748 The effects are minimal, but it's advisable to upgrade world
752 The latest em driver no longer has support in it for the
753 82575 adapter, this is now moved to the igb driver. The
754 split was done to make new features that are incompatible
755 with older hardware easier to do.
758 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
759 likewise the kernel option is now GEOM_LINUX_LVM.
762 The default NFS mount mode has changed from UDP to TCP for
763 increased reliability. If you rely on (insecurely) NFS
764 mounting across a firewall you may need to update your
768 Belatedly note the addition of m_collapse for compacting
772 The fts(3) structures have been changed to use adequate
773 integer types for their members and so to be able to cope
774 with huge file trees. The old fts(3) ABI is preserved
775 through symbol versioning in libc, so third-party binaries
776 using fts(3) should still work, although they will not take
777 advantage of the extended types. At the same time, some
778 third-party software might fail to build after this change
779 due to unportable assumptions made in its source code about
780 fts(3) structure members. Such software should be fixed
781 by its vendor or, in the worst case, in the ports tree.
782 FreeBSD_version 800015 marks this change for the unlikely
783 case that a portable fix is impossible.
786 To upgrade to -current after this date, you must be running
787 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
788 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
791 The ADAPTIVE_GIANT kernel option has been retired because its
792 functionality is the default now.
795 The AT keyboard emulation of sunkbd(4) has been turned on
796 by default. In order to make the special symbols of the Sun
797 keyboards driven by sunkbd(4) work under X these now have
798 to be configured the same way as Sun USB keyboards driven
799 by ukbd(4) (which also does AT keyboard emulation), f.e.:
801 Option "XkbLayout" "us"
802 Option "XkbRules" "xorg"
803 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
806 It has been decided that it is desirable to provide ABI
807 backwards compatibility to the FreeBSD 4/5/6 versions of the
808 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
809 broken with the introduction of PCI domain support (see the
810 20070930 entry). Unfortunately, this required the ABI of
811 PCIOCGETCONF to be broken again in order to be able to
812 provide backwards compatibility to the old version of that
813 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
814 again. As for prominent ports this affects neither pciutils
815 nor xorg-server this time, the hal port needs to be rebuilt
819 The misnamed kthread_create() and friends have been renamed
820 to kproc_create() etc. Many of the callers already
822 I will return kthread_create() and friends in a while
823 with implementations that actually create threads, not procs.
824 Renaming corresponds with version 800002.
830 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
831 WITHOUT_LIBTHR are set.
834 The PCI code has been made aware of PCI domains. This means that
835 the location strings as used by pciconf(8) etc are now in the
836 following format: pci<domain>:<bus>:<device>[:<function>]. It
837 also means that consumers of <sys/pciio.h> potentially need to
838 be recompiled; this includes the hal and xorg-server ports.
841 The caching daemon (cached) was renamed to nscd. nscd.conf
842 configuration file should be used instead of cached.conf and
843 nscd_enable, nscd_pidfile and nscd_flags options should be used
844 instead of cached_enable, cached_pidfile and cached_flags in
848 The getfacl(1) utility now prints owning user and group name
849 instead of owning uid and gid in the three line comment header.
850 This is the same behavior as getfacl(1) on Solaris and Linux.
853 The new IPsec code is now compiled in using the IPSEC option. The
854 IPSEC option now requires "device crypto" be defined in your kernel
855 configuration. The FAST_IPSEC kernel option is now deprecated.
858 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
859 note the changed syntax - keep state is now on by default. Also
860 note the fact that ftp-proxy(8) has been changed from bottom up and
861 has been moved from libexec to usr/sbin. Changes in the ALTQ
862 handling also affect users of IPFW's ALTQ capabilities.
865 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
866 only IPsec supported by FreeBSD. The new IPsec stack
867 supports both IPv4 and IPv6. The kernel option will change
868 after the code changes have settled in. For now the kernel
869 option IPSEC is deprecated and FAST_IPSEC is the only option, that
870 will change after some settling time.
873 The wicontrol(8) utility has been removed from the base system. wi(4)
874 cards should be configured using ifconfig(8), see the man page for more
878 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
879 instead of the nve(4) driver. Please update your configuration
883 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
884 database if it is missing or older than the aliases file. If
885 desired, set the new rc.conf option sendmail_rebuild_aliases
886 to "YES" to restore that functionality.
889 The IPv4 multicast socket code has been considerably modified, and
890 moved to the file sys/netinet/in_mcast.c. Initial support for the
891 RFC 3678 Source-Specific Multicast Socket API has been added to
892 the IPv4 network stack.
894 Strict multicast and broadcast reception is now the default for
895 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
896 has now been removed.
898 The RFC 1724 hack for interface selection has been removed; the use
899 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
900 been added to replace it. Consumers such as routed will soon be
901 updated to reflect this.
903 These changes affect users who are running routed(8) or rdisc(8)
904 from the FreeBSD base system on point-to-point or unnumbered
908 The net80211 layer has changed significantly and all wireless
909 drivers that depend on it need to be recompiled. Further these
910 changes require that any program that interacts with the wireless
911 support in the kernel be recompiled; this includes: ifconfig,
912 wpa_supplicant, hostapd, and wlanstats. Users must also, for
913 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
914 if they use modules for wireless support. These modules implement
915 scanning support for station and ap modes, respectively. Failure
916 to load the appropriate module before marking a wireless interface
917 up will result in a message to the console and the device not
921 The pam_nologin(8) module ceases to provide an authentication
922 function and starts providing an account management function.
923 Consequent changes to /etc/pam.d should be brought in using
924 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
925 need manual editing as follows. Locate this line (or similar):
927 auth required pam_nologin.so no_warn
929 and change it according to this example:
931 account required pam_nologin.so no_warn
933 That is, the first word needs to be changed from "auth" to
934 "account". The new line can be moved to the account section
935 within the file for clarity. Not updating pam.conf(5) files
936 will result in nologin(5) ignored by the respective services.
939 The ether_ioctl() function has been synchronized with ioctl(2)
940 and ifnet.if_ioctl. Due to that, the size of one of its arguments
941 has changed on 64-bit architectures. All kernel modules using
942 ether_ioctl() need to be rebuilt on such architectures.
945 Improved INCLUDE_CONFIG_FILE support has been introduced to the
946 config(8) utility. In order to take advantage of this new
947 functionality, you are expected to recompile and install
948 src/usr.sbin/config. If you don't rebuild config(8), and your
949 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
950 build will be broken because of a missing "kernconfstring"
954 Symbol versioning is enabled by default. To disable it, use
955 option WITHOUT_SYMVER. It is not advisable to attempt to
956 disable symbol versioning once it is enabled; your installworld
957 will break because a symbol version-less libc will get installed
958 before the install tools. As a result, the old install tools,
959 which previously had symbol dependencies to FBSD_1.0, will fail
960 because the freshly installed libc will not have them.
962 The default threading library (providing "libpthread") has been
963 changed to libthr. If you wish to have libkse as your default,
964 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
967 The ABI breakage in sendmail(8)'s libmilter has been repaired
968 so it is no longer necessary to recompile mail filters (aka,
969 milters). If you recompiled mail filters after the 20070408
970 note, it is not necessary to recompile them again.
973 The new trunk(4) driver has been renamed to lagg(4) as it better
974 reflects its purpose. ifconfig will need to be recompiled.
977 sendmail(8) has been updated to version 8.14.1. Mail filters
978 (aka, milters) compiled against the libmilter included in the
979 base operating system should be recompiled.
982 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
983 In order to use them one must agree to the respective LICENSE in
984 share/doc/legal and define legal.intel_<name>.license_ack=1 via
985 loader.conf(5) or kenv(1). Make sure to deinstall the now
986 deprecated modules from the respective firmware ports.
989 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
990 were removed from FreeBSD's libc. These originally came from INRIA
991 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
992 deprecated in previous releases.
993 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
994 replace it as a more portable (and re-entrant) API.
997 To support interrupt filtering a modification to the newbus API
998 has occurred, ABI was broken and __FreeBSD_version was bumped
999 to 700031. Please make sure that your kernel and modules are in
1000 sync. For more info:
1001 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
1004 The IPv6 multicast forwarding code may now be loaded into GENERIC
1005 kernels by loading the ip_mroute.ko module. This is built into the
1006 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
1007 set; see src.conf(5) for more information.
1010 The output of netstat -r has changed. Without -n, we now only
1011 print a "network name" without the prefix length if the network
1012 address and mask exactly match a Class A/B/C network, and an entry
1013 exists in the nsswitch "networks" map.
1014 With -n, we print the full unabbreviated CIDR network prefix in
1015 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
1016 This change is in preparation for changes such as equal-cost
1017 multipath, and to more generally assist operational deployment
1018 of FreeBSD as a modern IPv4 router.
1021 PIM has been turned on by default in the IPv4 multicast
1022 routing code. The kernel option 'PIM' has now been removed.
1023 PIM is now built by default if option 'MROUTING' is specified.
1024 It may now be loaded into GENERIC kernels by loading the
1025 ip_mroute.ko module.
1028 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
1029 has been removed. Its functionality may be achieved by explicitly
1030 configuring gif(4) interfaces and using the 'phyint' keyword in
1032 XORP does not support source-routed IPv4 multicast tunnels nor the
1033 integrated IPIP tunneling, therefore it is not affected by this
1034 change. The __FreeBSD_version macro has been bumped to 700030.
1037 Support for PCI Message Signalled Interrupts has been
1038 re-enabled in the bge driver, only for those chips which are
1039 believed to support it properly. If there are any problems,
1040 MSI can be disabled completely by setting the
1041 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
1045 Support for PCI Message Signalled Interrupts has been
1046 disabled again in the bge driver. Many revisions of the
1047 hardware fail to support it properly. Support can be
1048 re-enabled by removing the #define of BGE_DISABLE_MSI in
1049 "src/sys/dev/bge/if_bge.c".
1052 Support for PCI Message Signalled Interrupts has been added
1053 to the bge driver. If there are any problems, MSI can be
1054 disabled completely by setting the 'hw.pci.enable_msi' and
1055 'hw.pci.enable_msix' tunables to 0 in the loader.
1058 The removal of several facets of the experimental Threading
1059 system from the kernel means that the proc and thread structures
1060 have changed quite a bit. I suggest all kernel modules that might
1061 reference these structures be recompiled.. Especially the
1065 Sound infrastructure has been updated with various fixes and
1066 improvements. Most of the changes are pretty much transparent,
1067 with exceptions of followings:
1068 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
1069 moved to their own dev sysctl nodes, for example:
1070 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
1071 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
1072 own chardev in the form of "dsp%d.<function>%d", where <function>
1073 is p = playback, r = record and v = virtual, respectively. Users
1074 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
1075 This does not affect those who are using "/dev/dsp".
1078 geom(4)'s gmirror(8) class metadata structure has been
1079 rev'd from v3 to v4. If you update across this point and
1080 your metadata is converted for you, you will not be easily
1081 able to downgrade since the /boot/kernel.old/geom_mirror.ko
1082 kernel module will be unable to read the v4 metadata. You
1083 can resolve this by doing from the loader(8) prompt:
1085 set vfs.root.mountfrom="ufs:/dev/XXX"
1087 where XXX is the root slice of one of the disks that composed
1088 the mirror (i.e.: /dev/ad0s1a). You can then rebuild
1089 the array the same way you built it originally.
1092 The following binaries have been disconnected from the build:
1093 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
1094 and mount_std. The functionality of these programs has been
1095 moved into the mount program. For example, to mount a devfs
1096 filesystem, instead of using mount_devfs, use: "mount -t devfs".
1097 This does not affect entries in /etc/fstab, since entries in
1098 /etc/fstab are always processed with "mount -t fstype".
1101 Support for PCI Message Signalled Interrupts on i386 and amd64
1102 has been added to the kernel and various drivers will soon be
1103 updated to use MSI when it is available. If there are any problems,
1104 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
1105 and 'hw.pci.enable_msix' tunables to 0 in the loader.
1108 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
1109 The lockmgr object layout has been changed as a result of having
1110 a lock_object embedded in it. As a consequence all file system
1111 kernel modules must be re-compiled. The mutex profiling man page
1112 has not yet been updated to reflect this change.
1115 KSE in the kernel has now been made optional and turned on by
1116 default. Use 'nooption KSE' in your kernel config to turn it
1117 off. All kernel modules *must* be recompiled after this change.
1118 There-after, modules from a KSE kernel should be compatible with
1119 modules from a NOKSE kernel due to the temporary padding fields
1120 added to 'struct proc'.
1123 mrouted and its utilities have been removed from the base system.
1126 Some ioctl(2) command codes have changed. Full backward ABI
1127 compatibility is provided if the "options COMPAT_FREEBSD6" is
1128 present in the kernel configuration file. Make sure to add
1129 this option to your kernel config file, or recompile X.Org
1130 and the rest of ports; otherwise they may refuse to work.
1133 tcpslice has been removed from the base system.
1136 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
1137 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
1138 systat needs to be rebuilt.
1141 libpcap updated to v0.9.4 and tcpdump to v3.9.4
1144 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
1145 for IPFIREWALL_FORWARD is now as it was before when it was first
1146 committed and for years after. The behaviour is now ON.
1149 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
1150 Now it can decrypt files created from different architectures.
1151 Unfortunately, it is no longer able to decrypt a cipher text
1152 generated with an older version on 64 bit architectures.
1153 If you have such a file, you need old utility to decrypt it.
1156 The interface version of the i4b kernel part has changed. So
1157 after updating the kernel sources and compiling a new kernel,
1158 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
1159 be rebuilt, and vice versa.
1162 The XBOX kernel now defaults to the nfe(4) driver instead of
1163 the nve(4) driver. Please update your configuration
1167 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
1168 PCnet family of NICs has been removed. The new le(4) driver serves
1169 as an equivalent but cross-platform replacement with the pcn(4)
1170 driver still providing performance-optimized support for the subset
1171 of AMD Am79C971 PCnet-FAST and greater chips as before.
1174 The machdep.* sysctls and the adjkerntz utility have been
1175 modified a bit. The new adjkerntz utility uses the new
1176 sysctl names and sysctlbyname() calls, so it may be impossible
1177 to run an old /sbin/adjkerntz utility in single-user mode
1178 with a new kernel. Replace the `adjkerntz -i' step before
1179 `make installworld' with:
1181 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
1183 and proceed as usual with the rest of the installworld-stage
1184 steps. Otherwise, you risk installing binaries with their
1185 timestamp set several hours in the future, especially if
1186 you are running with local time set to GMT+X hours.
1189 The ip6fw utility has been removed. The behavior provided by
1190 ip6fw has been in ipfw2 for a good while and the rc.d scripts
1191 have been updated to deal with it. There are some rules that
1192 might not migrate cleanly. Use rc.firewall6 as a template to
1196 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
1197 attachments have been removed. Make sure to configure scc(4)
1198 on sparc64. Note also that by default puc(4) will use uart(4)
1199 and not sio(4) for serial ports because interrupt handling has
1200 been optimized for multi-port serial cards and only uart(4)
1201 implements the interface to support it.
1204 The scc(4) driver replaces puc(4) for Serial Communications
1205 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
1206 Z8530. On sparc64, it is advised to add scc(4) to the kernel
1207 configuration to make sure that the serial ports remain
1211 Most world/kernel related NO_* build options changed names.
1212 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
1213 after FreeBSD ports) and should be set in /etc/src.conf
1214 (the src.conf(5) manpage is provided). Full backwards
1215 compatibility is maintained for the time being though it's
1216 highly recommended to start moving old options out of the
1217 system-wide /etc/make.conf file into the new /etc/src.conf
1218 while also properly renaming them. More conversions will
1219 likely follow. Posting to current@:
1221 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
1224 The NETSMBCRYPTO kernel option has been retired because its
1225 functionality is always included in NETSMB and smbfs.ko now.
1228 The TDFX_LINUX kernel option was retired and replaced by the
1229 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
1230 kernel module. Loading it alone should suffice to get 3dfx support
1231 for Linux apps because it will pull in 3dfx.ko and linux.ko through
1235 The 'audit' group was added to support the new auditing functionality
1236 in the base system. Be sure to follow the directions for updating,
1237 including the requirement to run mergemaster -p.
1240 The kernel ABI to file system modules was changed on i386.
1241 Please make sure that your kernel and modules are in sync.
1244 This actually occured some time ago, but installing the kernel
1245 now also installs a bunch of symbol files for the kernel modules.
1246 This increases the size of /boot/kernel to about 67Mbytes. You
1247 will need twice this if you will eventually back this up to kernel.old
1248 on your next install.
1249 If you have a shortage of room in your root partition, you should add
1250 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
1251 to your /etc/make.conf.
1254 libc's malloc implementation has been replaced. This change has the
1255 potential to uncover application bugs that previously went unnoticed.
1256 See the malloc(3) manual page for more details.
1259 The generic netgraph(4) cookie has been changed. If you upgrade
1260 kernel passing this point, you also need to upgrade userland
1261 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
1264 si(4)'s device files now contain the unit number.
1265 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
1268 The kernel ABI was mostly destroyed due to a change in the size
1269 of struct lock_object which is nested in other structures such
1270 as mutexes which are nested in all sorts of other structures.
1271 Make sure your kernel and modules are in sync.
1274 The page coloring algorithm in the VM subsystem was converted
1275 from tuning with kernel options to autotuning. Please remove
1276 any PQ_* option except PQ_NOOPT from your kernel config.
1279 The net80211-related tools in the tools/tools/ath directory
1280 have been moved to tools/tools/net80211 and renamed with a
1281 "wlan" prefix. Scripts that use them should be adjusted
1285 Scripts in the local_startup directories (as defined in
1286 /etc/defaults/rc.conf) that have the new rc.d semantics will
1287 now be run as part of the base system rcorder. If there are
1288 errors or problems with one of these local scripts, it could
1289 cause boot problems. If you encounter such problems, boot in
1290 single user mode, remove that script from the */rc.d directory.
1291 Please report the problem to the port's maintainer, and the
1292 freebsd-ports@freebsd.org mailing list.
1295 The nodev mount option was deprecated in RELENG_6 (where it
1296 was a no-op), and is now unsupported. If you have nodev or dev listed
1297 in /etc/fstab, remove it, otherwise it will result in a mount error.
1300 ABI between ipfw(4) and ipfw(8) has been changed. You need
1301 to rebuild ipfw(8) when rebuilding kernel.
1304 rp(4)'s device files now contain the unit number.
1305 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
1308 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
1309 Its /etc/rc.conf.d configuration file has been `ppp' from
1310 the beginning, and hence there is no need to touch it.
1313 Now most modules get their build-time options from the kernel
1314 configuration file. A few modules still have fixed options
1315 due to their non-conformant implementation, but they will be
1316 corrected eventually. You may need to review the options of
1317 the modules in use, explicitly specify the non-default options
1318 in the kernel configuration file, and rebuild the kernel and
1322 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
1323 to turn polling(4) on your interfaces.
1326 The old bridge(4) implementation was retired. The new
1327 if_bridge(4) serves as a full functional replacement.
1330 The ai_addrlen of a struct addrinfo was changed to a socklen_t
1331 to conform to POSIX-2001. This change broke an ABI
1332 compatibility on 64 bit architecture. You have to recompile
1333 userland programs that use getaddrinfo(3) on 64 bit
1337 RELENG_6 branched here.
1340 The pccard_ifconfig rc.conf variable has been removed and a new
1341 variable, ifconfig_DEFAULT has been introduced. Unlike
1342 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
1343 do not have ifconfig_ifn entries rather than just those in
1344 removable_interfaces.
1347 Some previous versions of PAM have permitted the use of
1348 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
1349 to third party PAM modules in /usr/local/lib. A change has been
1350 made to require the use of absolute paths in order to avoid
1351 ambiguity and dependence on library path configuration, which may
1352 affect existing configurations.
1355 Major changes to network interface API. All drivers must be
1356 recompiled. Drivers not in the base system will need to be
1357 updated to the new APIs.
1360 Changes were made to kinfo_proc in sys/user.h. Please recompile
1361 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
1362 will not behave correctly.
1364 The API and ABI for hwpmc(4) have changed with the addition
1365 of sampling support. Please recompile lib/libpmc(3) and
1366 usr.sbin/{pmcstat,pmccontrol}.
1369 The OpenBSD dhclient was imported in place of the ISC dhclient
1370 and the network interface configuration scripts were updated
1371 accordingly. If you use DHCP to configure your interfaces, you
1372 must now run devd. Also, DNS updating was lost so you will need
1373 to find a workaround if you use this feature.
1375 The '_dhcp' user was added to support the OpenBSD dhclient. Be
1376 sure to run mergemaster -p (like you are supposed to do every time
1380 if_bridge was added to the tree. This has changed struct ifnet.
1381 Please recompile userland and all network related modules.
1384 The n_net of a struct netent was changed to an uint32_t, and
1385 1st argument of getnetbyaddr() was changed to an uint32_t, to
1386 conform to POSIX-2001. These changes broke an ABI
1387 compatibility on 64 bit architecture. With these changes,
1388 shlib major of libpcap was bumped. You have to recompile
1389 userland programs that use getnetbyaddr(3), getnetbyname(3),
1390 getnetent(3) and/or libpcap on 64 bit architecture.
1393 Kernel parsing of extra options on '#!' first lines of shell
1394 scripts has changed. Lines with multiple options likely will
1395 fail after this date. For full details, please see
1396 http://people.freebsd.org/~gad/Updating-20050528.txt
1399 The packet filter (pf) code has been updated to OpenBSD 3.7
1400 Please note the changed anchor syntax and the fact that
1401 authpf(8) now needs a mounted fdescfs(5) to function.
1404 The NO_MIXED_MODE kernel option has been removed from the i386
1405 amd64 platforms as its use has been superceded by the new local
1406 APIC timer code. Any kernel config files containing this option
1410 The on-disk format of LC_CTYPE files was changed to be machine
1411 independent. Please make sure NOT to use NO_CLEAN buildworld
1412 when crossing this point. Crossing this point also requires
1413 recompile or reinstall of all locale depended packages.
1416 The ifi_epoch member of struct if_data has been changed to
1417 contain the uptime at which the interface was created or the
1418 statistics zeroed rather then the wall clock time because
1419 wallclock time may go backwards. This should have no impact
1420 unless an snmp implementation is using this value (I know of
1421 none at this point.)
1424 The acpi_perf and acpi_throttle drivers are now part of the
1425 acpi(4) main module. They are no longer built separately.
1428 The layout of struct image_params has changed. You have to
1429 recompile all compatibility modules (linux, svr4, etc) for use
1430 with the new kernel.
1433 The p4tcc driver has been merged into cpufreq(4). This makes
1434 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
1435 compile in "device cpufreq" to restore this functionality.
1438 The responsibility of recomputing the file system summary of
1439 a SoftUpdates-enabled dirty volume has been transferred to the
1440 background fsck. A rebuild of fsck(8) utility is recommended
1441 if you have updated the kernel.
1443 To get the old behavior (recompute file system summary at mount
1444 time), you can set vfs.ffs.compute_summary_at_mount=1 before
1445 mounting the new volume.
1448 The cpufreq import is complete. As part of this, the sysctls for
1449 acpi(4) throttling have been removed. The power_profile script
1450 has been updated, so you can use performance/economy_cpu_freq in
1451 rc.conf(5) to set AC on/offline cpu frequencies.
1454 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
1455 requires recompiling libnetgraph and userland netgraph utilities.
1458 Support for abbreviated forms of a number of ipfw options is
1459 now deprecated. Warnings are printed to stderr indicating the
1460 correct full form when a match occurs. Some abbreviations may
1461 be supported at a later date based on user feedback. To be
1462 considered for support, abbreviations must be in use prior to
1463 this commit and unlikely to be confused with current key words.
1466 By a popular demand, a lot of NOFOO options were renamed
1467 to NO_FOO (see bsd.compat.mk for a full list). The old
1468 spellings are still supported, but will cause annoying
1469 warnings on stderr. Make sure you upgrade properly (see
1470 the COMMON ITEMS: section later in this file).
1473 Auto-loading of ancillary wlan modules such as wlan_wep has
1474 been temporarily disabled; you need to statically configure
1475 the modules you need into your kernel or explicitly load them
1476 prior to use. Specifically, if you intend to use WEP encryption
1477 with an 802.11 device load/configure wlan_wep; if you want to
1478 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
1479 and wlan_xauth as required.
1482 The behaviour of ppp(8) has changed slightly. If lqr is enabled
1483 (``enable lqr''), older versions would revert to LCP ECHO mode on
1484 negotiation failure. Now, ``enable echo'' is required for this
1485 behaviour. The ppp version number has been bumped to 3.4.2 to
1489 The wlan support has been updated to split the crypto support
1490 into separate modules. For static WEP you must configure the
1491 wlan_wep module in your system or build and install the module
1492 in place where it can be loaded (the kernel will auto-load
1493 the module when a wep key is configured).
1496 The ath driver has been updated to split the tx rate control
1497 algorithm into a separate module. You need to include either
1498 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
1501 Support for systems with an 80386 CPU has been removed. Please
1502 use FreeBSD 5.x or earlier on systems with an 80386.
1505 We have had a hack which would mount the root filesystem
1506 R/W if the device were named 'md*'. As part of the vnode
1507 work I'm doing I have had to remove this hack. People
1508 building systems which use preloaded MD root filesystems
1509 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
1510 their /etc/rc scripts.
1513 FreeBSD 5.3 shipped here.
1516 The size of struct tcpcb has changed again due to the removal
1517 of RFC1644 T/TCP. You have to recompile userland programs that
1518 read kmem for tcp sockets directly (netstat, sockstat, etc.)
1521 The size of struct tcpcb has changed. You have to recompile
1522 userland programs that read kmem for tcp sockets directly
1523 (netstat, sockstat, etc.)
1526 RELENG_5 branched here. For older entries, please see updating
1527 in the RELENG_5 branch.
1533 Avoid using make -j when upgrading. From time to time in the
1534 past there have been problems using -j with buildworld and/or
1535 installworld. This is especially true when upgrading between
1536 "distant" versions (eg one that cross a major release boundary
1537 or several minor releases, or when several months have passed
1538 on the -current branch).
1540 Sometimes, obscure build problems are the result of environment
1541 poisoning. This can happen because the make utility reads its
1542 environment when searching for values for global variables.
1543 To run your build attempts in an "environmental clean room",
1544 prefix all make commands with 'env -i '. See the env(1) manual
1545 page for more details.
1547 When upgrading from one major version to another it is generally
1548 best to upgrade to the latest code in the currently installed branch
1549 first, then do an upgrade to the new branch. This is the best-tested
1550 upgrade path, and has the highest probability of being successful.
1551 Please try this approach before reporting problems with a major
1556 If you are updating from a prior version of FreeBSD (even one just
1557 a few days old), you should follow this procedure. It is the most
1558 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
1560 make kernel-toolchain
1561 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
1562 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
1564 To test a kernel once
1565 ---------------------
1566 If you just want to boot a kernel once (because you are not sure
1567 if it works, or if you want to boot a known bad kernel to provide
1568 debugging information) run
1569 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
1570 nextboot -k testkernel
1572 To just build a kernel when you know that it won't mess you up
1573 --------------------------------------------------------------
1574 This assumes you are already running a 5.X system. Replace
1575 ${arch} with the architecture of your machine (e.g. "i386",
1576 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
1578 cd src/sys/${arch}/conf
1579 config KERNEL_NAME_HERE
1580 cd ../compile/KERNEL_NAME_HERE
1585 If this fails, go to the "To build a kernel" section.
1587 To rebuild everything and install it on the current system.
1588 -----------------------------------------------------------
1589 # Note: sometimes if you are running current you gotta do more than
1590 # is listed here if you are upgrading from a really old current.
1592 <make sure you have good level 0 dumps>
1594 make kernel KERNCONF=YOUR_KERNEL_HERE
1596 <reboot in single user> [3]
1604 To cross-install current onto a separate partition
1605 --------------------------------------------------
1606 # In this approach we use a separate partition to hold
1607 # current's root, 'usr', and 'var' directories. A partition
1608 # holding "/", "/usr" and "/var" should be about 2GB in
1611 <make sure you have good level 0 dumps>
1614 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1615 <maybe newfs current's root partition>
1616 <mount current's root partition on directory ${CURRENT_ROOT}>
1617 make installworld DESTDIR=${CURRENT_ROOT}
1618 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1619 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1620 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
1621 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1622 <reboot into current>
1623 <do a "native" rebuild/install as described in the previous section>
1624 <maybe install compatibility libraries from ports/misc/compat*>
1628 To upgrade in-place from 5.x-stable to current
1629 ----------------------------------------------
1630 <make sure you have good level 0 dumps>
1632 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
1634 <reboot in single user> [3]
1641 Make sure that you've read the UPDATING file to understand the
1642 tweaks to various things you need. At this point in the life
1643 cycle of current, things change often and you are on your own
1644 to cope. The defaults can also change, so please read ALL of
1645 the UPDATING entries.
1647 Also, if you are tracking -current, you must be subscribed to
1648 freebsd-current@freebsd.org. Make sure that before you update
1649 your sources that you have read and understood all the recent
1650 messages there. If in doubt, please track -stable which has
1651 much fewer pitfalls.
1653 [1] If you have third party modules, such as vmware, you
1654 should disable them at this point so they don't crash your
1657 [3] From the bootblocks, boot -s, and then do
1662 adjkerntz -i # if CMOS is wall time
1663 Also, when doing a major release upgrade, it is required that
1664 you boot into single user mode to do the installworld.
1666 [4] Note: This step is non-optional. Failure to do this step
1667 can result in a significant reduction in the functionality of the
1668 system. Attempting to do it by hand is not recommended and those
1669 that pursue this avenue should read this file carefully, as well
1670 as the archives of freebsd-current and freebsd-hackers mailing lists
1671 for potential gotchas.
1673 [5] Usually this step is a noop. However, from time to time
1674 you may need to do this if you get unknown user in the following
1675 step. It never hurts to do it all the time. You may need to
1676 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1677 install) after the buildworld before this step if you last updated
1678 from current before 20020224 or from -stable before 20020408.
1680 [8] In order to have a kernel that can run the 4.x binaries
1681 needed to do an installworld, you must include the COMPAT_FREEBSD4
1682 option in your kernel. Failure to do so may leave you with a system
1683 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
1684 is required to run the 5.x binaries on more recent kernels.
1686 Make sure that you merge any new devices from GENERIC since the
1687 last time you updated your kernel config file.
1689 [9] When checking out sources, you must include the -P flag to have
1690 cvs prune empty directories.
1692 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1693 "?=" instead of the "=" assignment operator, so that buildworld can
1694 override the CPUTYPE if it needs to.
1696 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1697 not on the command line, or in /etc/make.conf. buildworld will
1698 warn if it is improperly defined.
1701 This file contains a list, in reverse chronological order, of major
1702 breakages in tracking -current. Not all things will be listed here,
1703 and it only starts on October 16, 2004. Updating files can found in
1704 previous releases if your system is older than this.
1706 Copyright information:
1708 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
1710 Redistribution, publication, translation and use, with or without
1711 modification, in full or in part, in any form or format of this
1712 document are permitted without further permission from the author.
1714 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1715 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1716 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1717 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1718 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1719 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1720 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1721 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1722 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1723 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1724 POSSIBILITY OF SUCH DAMAGE.
1726 If you find this document useful, and you want to, you may buy the
1729 Contact Warner Losh if you have any questions about your use of