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 20110928: p5 FreeBSD-SA-11:04.compress, FreeBSD-SA-11:05.unix
19 Fix handling of corrupt compress(1)ed data. [11:04]
21 Add missing length checks on unix socket addresses. [11:05]
23 20110528: p4 FreeBSD-SA-11:02.bind
24 Fix BIND remote DoS with large RRSIG RRsets and negative
27 20110420: p3 FreeBSD-SA-11:01.mountd
28 Fix CIDR parsing bug in mountd ACLs.
30 20101129: p2 FreeBSD-SA-10:10.openssl
31 Fix OpenSSL multiple vulnerabilities.
33 20100920: p1 FreeBSD-SA-10:08.bzip2
34 Fix an integer overflow in RLE length parsing when decompressing
40 20100713: FreeBSD-SA-10:07.mbuf
41 Correctly copy the M_RDONLY flag when duplicating a reference
42 to an mbuf external buffer.
45 The config(8) command has been updated to maintain compatibility
46 with config files from 8.0-RELEASE. You will need a new version
47 of config to build kernels (this version can be used from 8.0-RELEASE
48 forward). The buildworld target will generate it, so following
49 the instructions in this file for updating will work glitch-free.
50 Merely doing a make buildkernel without first doing a make buildworld
51 (or kernel-toolchain), or attempting to build a kernel using
52 traidtional methods will generate a config version warning, indicating
56 The rc.firewall and rc.firewall6 were unified, and
57 rc.firewall6 and rc.d/ip6fw were removed.
58 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc
59 variables are obsoleted. Instead, the following new rc
60 variables are added to rc.d/ipfw:
62 firewall_client_net_ipv6, firewall_simple_iif_ipv6,
63 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6,
64 firewall_simple_onet_ipv6
66 The meanings correspond to the relevant IPv4 variables.
69 COMPAT_IA32 has been added as an alias for COMPAT_FREEBSD32. A new
70 version of config(8) is required. The error message when you hit this
71 condition is confusing (COMPAT_FREEBSD32 duplicate option), when it
72 should really say "your config is too old to compile this new kernel."
75 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32
76 to allow 32-bit compatibility on non-x86 platforms. All kernel
77 configurations on amd64 and ia64 platforms using these options must
78 be modified accordingly.
81 Introduce the kernel thread "deadlock resolver" (which can be enabled
82 via the DEADLKRES option, see NOTES for more details) and the
83 sleepq_type() function for sleepqueues.
89 802.11s D3.03 support was committed. This is incompatible with
90 the previous code, which was based on D3.0.
93 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
94 mount(8) and -a option for df(1) to see them.
97 Remove the option STOP_NMI. The default action is now to use NMI
98 only for KDB via the newly introduced function stop_cpus_hard()
99 and maintain stop_cpus() to just use a normal IPI_STOP on ia32
106 Bump the shared library version numbers for all libraries that
107 do not use symbol versioning as part of the 8.0-RELEASE cycle.
108 Bump __FreeBSD_version to 800105.
111 Due to changes in the implementation of virtual network stack
112 support, all network-related kernel modules must be recompiled.
113 As this change breaks the ABI, bump __FreeBSD_version to 800104.
116 The TOE interface to the TCP syncache has been modified to remove struct
117 tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. The
118 cxgb driver is the only TOE consumer affected by this change, and needs
119 to be recompiled along with the kernel. As this change breaks the ABI,
120 bump __FreeBSD_version to 800103.
123 Padding has been added to struct tcpcb, sackhint and tcpstat in
124 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
125 maintainig the ABI. However, this change breaks the ABI, so bump
126 __FreeBSD_version to 800102. User space tools that rely on the size of
127 any of these structs (e.g. sockstat) need to be recompiled.
130 The NFS_LEGACYRPC option has been removed along with the old
131 kernel RPC implementation that this option selected. Kernel
132 configurations may need to be adjusted.
135 The network interface device nodes at /dev/net/<interface> have
136 been removed. All ioctl operations can be performed the normal
137 way using routing sockets. The kqueue functionality can
138 generally be replaced with routing sockets.
141 The documentation from the FreeBSD Documentation Project
142 (Handbook, FAQ, etc.) is now installed via packages by
143 sysinstall(8) and under the /usr/local/share/doc/freebsd
144 directory instead of /usr/share/doc.
147 The ABI of various structures related to the SYSV IPC API have
148 been changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43
149 kernel options now all require COMPAT_FREEBSD7.
150 Bump __FreeBSD_version to 800100.
153 Layout of struct vnet has changed as routing related variables
154 were moved to their own Vimage module. Modules need to be
155 recompiled. Bump __FreeBSD_version to 800099.
158 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023
159 and 1024 respectively. As long as no more than 16 groups per
160 process are used, no changes should be visible. When more
161 than 16 groups are used, old binaries may fail if they call
162 getgroups() or getgrouplist() with statically sized storage.
163 Recompiling will work around this, but applications should be
164 modified to use dynamically allocated storage for group arrays
165 as POSIX.1-2008 does not cap an implementation's number of
166 supported groups at NGROUPS_MAX+1 as previous versions did.
168 NFS and portalfs mounts may also be affected as the list of
169 groups is truncated to 16. Users of NFS who use more than 16
170 groups, should take care that negative group permissions are not
171 used on the exported file systems as they will not be reliable
172 unless a GSSAPI based authentication method is used.
175 The compiling option ADAPTIVE_LOCKMGRS has been introduced.
176 This option compiles in the support for adaptive spinning for lockmgrs
177 which want to enable it. The lockinit() function now accepts the
178 flag LK_ADAPTIVE in order to make the lock object subject to
179 adaptive spinning when both held in write and read mode.
182 The layout of the structure returned by IEEE80211_IOC_STA_INFO
183 has changed. User applications that use this ioctl need to be
187 The layout of struct thread has changed. Kernel and modules
191 The layout of structs ifnet, domain, protosw and vnet_net has
192 changed. Kernel modules need to be rebuilt.
193 Bump __FreeBSD_version to 800097.
196 window(1) has been removed from the base system. It can now be
197 installed from ports. The port is called misc/window.
200 The way we are storing and accessing `routing table' entries
201 has changed. Programs reading the FIB, like netstat, need to
205 A new netisr implementation has been added for FreeBSD 8. Network
206 file system modules, such as igmp, ipdivert, and others, should be
208 Bump __FreeBSD_version to 800096.
211 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose
215 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
216 Bump __FreeBSD_version to 800094.
219 Add mnt_xflag field to 'struct mount'. File system modules
221 Bump __FreeBSD_version to 800093.
224 The compiling option ADAPTIVE_SX has been retired while it has been
225 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
226 The KPI for sx_init_flags() changes as accepting flags:
227 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag
228 has been introduced in order to handle the reversed logic.
229 Bump __FreeBSD_version to 800092.
232 Add support for hierarchical jails. Remove global securelevel.
233 Bump __FreeBSD_version to 800091.
236 The layout of struct vnet_net has changed, therefore modules
238 Bump __FreeBSD_version to 800090.
241 The newly imported zic(8) produces a new format in the
242 output. Please run tzsetup(8) to install the newly created
243 data to /etc/localtime.
246 The sysctl tree for the usb stack has renamed from hw.usb2.* to
247 hw.usb.* and is now consistent again with previous releases.
250 802.11 monitor mode support was revised and driver api's
251 were changed. Drivers dependent on net80211 now support
252 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No
253 user-visible data structures were changed but applications
254 that use DLT_IEEE802_11 may require changes.
255 Bump __FreeBSD_version to 800088.
258 The layout of the following structs has changed: sysctl_oid,
259 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
260 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
261 panics may be experienced. World rebuild is required for
262 correctly checking networking state from userland.
263 Bump __FreeBSD_version to 800085.
266 MLDv2 and Source-Specific Multicast (SSM) have been merged
267 to the IPv6 stack. VIMAGE hooks are in but not yet used.
268 The implementation of SSM within FreeBSD's IPv6 stack closely
269 follows the IPv4 implementation.
271 For kernel developers:
273 * The most important changes are that the ip6_output() and
274 ip6_input() paths no longer take the IN6_MULTI_LOCK,
275 and this lock has been downgraded to a non-recursive mutex.
277 * As with the changes to the IPv4 stack to support SSM, filtering
278 of inbound multicast traffic must now be performed by transport
279 protocols within the IPv6 stack. This does not apply to TCP and
280 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
282 * The KPIs used by IPv6 multicast are similar to those used by
283 the IPv4 stack, with the following differences:
284 * im6o_mc_filter() is analogous to imo_multicast_filter().
285 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
286 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
287 * IN6_LOOKUP_MULTI() has been deprecated and removed.
288 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
289 for MLDv1 have an additional 'timer' argument which is used to
290 jitter the initial membership report for the solicited-node
291 multicast membership on-link.
292 * This is not strictly needed for MLDv2, which already jitters
293 its report transmissions. However, the 'timer' argument is
294 preserved in case MLDv1 is active on the interface.
296 * The KAME linked-list based IPv6 membership implementation has
297 been refactored to use a vector similar to that used by the IPv4
299 Code which maintains a list of its own multicast memberships
300 internally, e.g. carp, has been updated to reflect the new
303 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
304 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
305 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
306 implementation constraint which needs to be addressed in HEAD.
308 For application developers:
310 * The changes are broadly similar to those made for the IPv4
313 * The use of IPv4 and IPv6 multicast socket options on the same
314 socket, using mapped addresses, HAS NOT been tested or supported.
316 * There are a number of issues with the implementation of various
317 IPv6 multicast APIs which need to be resolved in the API surface
318 before the implementation is fully compatible with KAME userland
319 use, and these are mostly to do with interface index treatment.
321 * The literature available discusses the use of either the delta / ASM
322 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
323 using setsourcefilter(3)/getsourcefilter(3). For more information
324 please refer to RFC 3768, 'Socket Interface Extensions for
325 Multicast Source Filters'.
327 * Applications which use the published RFC 3678 APIs should be fine.
329 For systems administrators:
331 * The mtest(8) utility has been refactored to support IPv6, in
332 addition to IPv4. Interface addresses are no longer accepted
333 as arguments, their names must be used instead. The utility
334 will map the interface name to its first IPv4 address as
335 returned by getifaddrs(3).
337 * The ifmcstat(8) utility has also been updated to print the MLDv2
338 endpoint state and source filter lists via sysctl(3).
340 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
341 loopback of IPv6 multicast datagrams by default; it defaults to 1
342 to preserve the existing behaviour. Disabling multicast loopback is
343 recommended for optimal system performance.
345 * The IPv6 MROUTING code has been changed to examine this sysctl
346 instead of attempting to perform a group lookup before looping
347 back forwarded datagrams.
349 Bump __FreeBSD_version to 800084.
352 Implement low-level Bluetooth HCI API.
353 Bump __FreeBSD_version to 800083.
356 The layout of struct malloc_type, used by modules to register new
357 memory allocation types, has changed. Most modules will need to
358 be rebuilt or panics may be experienced.
359 Bump __FreeBSD_version to 800081.
362 Anticipate overflowing inp_flags - add inp_flags2.
363 This changes most offsets in inpcb, so checking v4 connection
364 state will require a world rebuild.
365 Bump __FreeBSD_version to 800080.
368 Add an llentry to struct route and struct route_in6. Modules
369 embedding a struct route will need to be recompiled.
370 Bump __FreeBSD_version to 800079.
373 The size of rt_metrics_lite and by extension rtentry has changed.
374 Networking administration apps will need to be recompiled.
375 The route command now supports show as an alias for get, weighting
376 of routes, sticky and nostick flags to alter the behavior of stateful
378 Bump __FreeBSD_version to 800078.
381 Do not use Giant for kbdmux(4) locking. This is wrong and
382 apparently causing more problems than it solves. This will
383 re-open the issue where interrupt handlers may race with
384 kbdmux(4) in polling mode. Typical symptoms include (but
385 not limited to) duplicated and/or missing characters when
386 low level console functions (such as gets) are used while
387 interrupts are enabled (for example geli password prompt,
388 mountroot prompt etc.). Disabling kbdmux(4) may help.
391 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
392 kernel modules referencing any of the above need to be recompiled.
393 Bump __FreeBSD_version to 800075.
396 GEOM_PART has become the default partition slicer for storage devices,
397 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
398 introduces some changes:
400 MSDOS/EBR: the devices created from MSDOS extended partition entries
401 (EBR) can be named differently than with GEOM_MBR and are now symlinks
402 to devices with offset-based names. fstabs may need to be modified.
404 BSD: the "geometry does not match label" warning is harmless in most
405 cases but it points to problems in file system misalignment with
406 disk geometry. The "c" partition is now implicit, covers the whole
407 top-level drive and cannot be (mis)used by users.
409 General: Kernel dumps are now not allowed to be written to devices
410 whose partition types indicate they are meant to be used for file
411 systems (or, in case of MSDOS partitions, as something else than
414 Most of these changes date approximately from 200812.
417 The uscanner(4) driver has been removed from the kernel. This follows
418 Linux removing theirs in 2.6 and making libusb the default interface
422 The multicast forwarding code has been cleaned up. netstat(1)
423 only relies on KVM now for printing bandwidth upcall meters.
424 The IPv4 and IPv6 modules are split into ip_mroute_mod and
425 ip6_mroute_mod respectively. The config(5) options for statically
426 compiling this code remain the same, i.e. 'options MROUTING'.
429 Support for the IFF_NEEDSGIANT network interface flag has been
430 removed, which means that non-MPSAFE network device drivers are no
431 longer supported. In particular, if_ar, if_sr, and network device
432 drivers from the old (legacy) USB stack can no longer be built or
436 POSIX.1 Native Language Support (NLS) has been enabled in libc and
437 a bunch of new language catalog files have also been added.
438 This means that some common libc messages are now localized and
439 they depend on the LC_MESSAGES environmental variable.
442 The k8temp(4) driver has been renamed to amdtemp(4) since
443 support for K10 and K11 CPU families was added.
446 IGMPv3 and Source-Specific Multicast (SSM) have been merged
447 to the IPv4 stack. VIMAGE hooks are in but not yet used.
449 For kernel developers, the most important changes are that the
450 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
451 and this lock has been downgraded to a non-recursive mutex.
453 Transport protocols (UDP, Raw IP) are now responsible for filtering
454 inbound multicast traffic according to group membership and source
455 filters. The imo_multicast_filter() KPI exists for this purpose.
456 Transports which do not use multicast (SCTP, TCP) already reject
457 multicast by default. Forwarding and receive performance may improve
458 as a mutex acquisition is no longer needed in the ip_input()
459 low-level input path. in_addmulti() and in_delmulti() are shimmed
460 to new KPIs which exist to support SSM in-kernel.
462 For application developers, it is recommended that loopback of
463 multicast datagrams be disabled for best performance, as this
464 will still cause the lock to be taken for each looped-back
465 datagram transmission. The net.inet.ip.mcast.loop sysctl may
466 be tuned to 0 to disable loopback by default; it defaults to 1
467 to preserve the existing behaviour.
469 For systems administrators, to obtain best performance with
470 multicast reception and multiple groups, it is always recommended
471 that a card with a suitably precise hash filter is used. Hash
472 collisions will still result in the lock being taken within the
473 transport protocol input path to check group membership.
475 If deploying FreeBSD in an environment with IGMP snooping switches,
476 it is recommended that the net.inet.igmp.sendlocal sysctl remain
477 enabled; this forces 224.0.0.0/24 group membership to be announced
480 The size of 'struct igmpstat' has changed; netstat needs to be
481 recompiled to reflect this.
482 Bump __FreeBSD_version to 800070.
485 libusb20.so.1 is now installed as libusb.so.1 and the ports system
486 updated to use it. This requires a buildworld/installworld in order to
487 update the library and dependencies (usbconfig, etc). Its advisable to
488 rebuild all ports which uses libusb. More specific directions are given
489 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
490 libusb are no longer required and can be removed.
493 A workaround is committed to allow the creation of System V shared
494 memory segment of size > 2 GB on the 64-bit architectures.
495 Due to a limitation of the existing ABI, the shm_segsz member
496 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
497 wrong for large segments. Note that limits must be explicitly
498 raised to allow such segments to be created.
501 The layout of struct ifnet has changed, requiring a rebuild of all
502 network device driver modules.
505 The /dev handling for the new USB stack has changed, a
506 buildworld/installworld is required for libusb20.
509 The new USB2 stack has now been permanently moved in and all kernel and
510 module names reverted to their previous values (eg, usb, ehci, ohci,
511 ums, ...). The old usb stack can be compiled in by prefixing the name
512 with the letter 'o', the old usb modules have been removed.
513 Updating entry 20090216 for xorg and 20090215 for libmap may still
517 The rc.conf(5) option if_up_delay has been renamed to
518 defaultroute_delay to better reflect its purpose. If you have
519 customized this setting in /etc/rc.conf you need to update it to
523 xorg 7.4 wants to configure its input devices via hald which does not
524 yet work with USB2. If the keyboard/mouse does not work in xorg then
526 Option "AllowEmptyInput" "off"
527 to your ServerLayout section. This will cause X to use the configured
528 kbd and mouse sections from your xorg.conf.
531 The GENERIC kernels for all architectures now default to the new USB2
532 stack. No kernel config options or code have been removed so if a
533 problem arises please report it and optionally revert to the old USB
534 stack. If you are loading USB kernel modules or have a custom kernel
535 that includes GENERIC then ensure that usb names are also changed over,
536 eg uftdi -> usb2_serial_ftdi.
538 Older programs linked against the ports libusb 0.1 need to be
539 redirected to the new stack's libusb20. /etc/libmap.conf can
541 # Map old usb library to new one for usb2 stack
542 libusb-0.1.so.8 libusb20.so.1
545 All USB ethernet devices now attach as interfaces under the name ueN
546 (eg. ue0). This is to provide a predictable name as vendors often
547 change usb chipsets in a product without notice.
550 The ichsmb(4) driver has been changed to require SMBus slave
551 addresses be left-justified (xxxxxxx0b) rather than right-justified.
552 All of the other SMBus controller drivers require left-justified
553 slave addresses, so this change makes all the drivers provide the
557 INET6 statistics (struct ip6stat) was updated.
558 netstat(1) needs to be recompiled.
561 NTFS has been removed from GENERIC kernel on amd64 to match
562 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
563 will load ntfs.ko module automatically when NTFS support is
564 actually needed, unless ntfs.ko is not installed or security
565 level prohibits loading kernel modules. If either is the case,
566 "options NTFS" has to be added into kernel config.
569 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
570 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
571 800061. User space tools that rely on the size of struct tcpcb in
572 tcp_var.h (e.g. sockstat) need to be recompiled.
575 ng_tty(4) module updated to match the new TTY subsystem.
576 Due to API change, user-level applications must be updated.
577 New API support added to mpd5 CVS and expected to be present
578 in next mpd5.3 release.
581 With __FreeBSD_version 800060 the makefs tool is part of
582 the base system (it was a port).
585 The afdata and ifnet locks have been changed from mutexes to
586 rwlocks, network modules will need to be re-compiled.
589 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
590 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
591 The new code reduced struct rtentry{} by 16 bytes on 32-bit
592 architecture and 40 bytes on 64-bit architecture. The userland
593 applications "arp" and "ndp" have been updated accordingly.
594 The output from "netstat -r" shows only routing entries and
595 none of the L2 information.
598 __FreeBSD_version 800057 marks the switchover from the
599 binary ath hal to source code. Users must add the line:
601 options AH_SUPPORT_AR5416
603 to their kernel config files when specifying:
607 The ath_hal module no longer exists; the code is now compiled
608 together with the driver in the ath module. It is now
609 possible to tailor chip support (i.e. reduce the set of chips
610 and thereby the code size); consult ath_hal(4) for details.
613 __FreeBSD_version 800054 adds memory barriers to
614 <machine/atomic.h>, new interfaces to ifnet to facilitate
615 multiple hardware transmit queues for cards that support
616 them, and a lock-less ring-buffer implementation to
617 enable drivers to more efficiently manage queueing of
621 A new version of ZFS (version 13) has been merged to -HEAD.
622 This version has zpool attribute "listsnapshots" off by
623 default, which means "zfs list" does not show snapshots,
624 and is the same as Solaris behavior.
627 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
630 The uhci, ohci, ehci and slhci USB Host controller drivers have
631 been put into separate modules. If you load the usb module
632 separately through loader.conf you will need to load the
633 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
634 controller add the following to loader.conf:
640 The ABI used by the PMC toolset has changed. Please keep
641 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
645 atapci kernel module now includes only generic PCI ATA
646 driver. AHCI driver moved to ataahci kernel module.
647 All vendor-specific code moved into separate kernel modules:
648 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
649 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
650 atamarvell, atamicron, atanational, atanetcell, atanvidia,
651 atapromise, ataserverworks, atasiliconimage, atasis, atavia
654 The TTY subsystem of the kernel has been replaced by a new
655 implementation, which provides better scalability and an
656 improved driver model. Most common drivers have been migrated to
657 the new TTY subsystem, while others have not. The following
658 drivers have not yet been ported to the new TTY layer:
661 cy, digi, rc, rp, sio
667 ng_h4, ng_tty, ppp, sl, snp
669 Adding these drivers to your kernel configuration file shall
670 cause compilation to fail.
673 ntpd has been upgraded to 4.2.4p5.
676 OpenSSH has been upgraded to 5.1p1.
678 For many years, FreeBSD's version of OpenSSH preferred DSA
679 over RSA for host and user authentication keys. With this
680 upgrade, we've switched to the vendor's default of RSA over
681 DSA. This may cause upgraded clients to warn about unknown
682 host keys even for previously known hosts. Users should
683 follow the usual procedure for verifying host keys before
684 accepting the RSA key.
686 This can be circumvented by setting the "HostKeyAlgorithms"
687 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
690 Please note that the sequence of keys offered for
691 authentication has been changed as well. You may want to
692 specify IdentityFile in a different order to revert this
696 The sio(4) driver has been removed from the i386 and amd64
697 kernel configuration files. This means uart(4) is now the
698 default serial port driver on those platforms as well.
700 To prevent collisions with the sio(4) driver, the uart(4) driver
701 uses different names for its device nodes. This means the
702 onboard serial port will now most likely be called "ttyu0"
703 instead of "ttyd0". You may need to reconfigure applications to
704 use the new device names.
706 When using the serial port as a boot console, be sure to update
707 /boot/device.hints and /etc/ttys before booting the new kernel.
708 If you forget to do so, you can still manually specify the hints
709 at the loader prompt:
711 set hint.uart.0.at="isa"
712 set hint.uart.0.port="0x3F8"
713 set hint.uart.0.flags="0x10"
714 set hint.uart.0.irq="4"
718 The gpt(8) utility has been removed. Use gpart(8) to partition
722 The version that Linuxulator emulates was changed from 2.4.2
723 to 2.6.16. If you experience any problems with Linux binaries
724 please try to set sysctl compat.linux.osrelease to 2.4.2 and
725 if it fixes the problem contact emulation mailing list.
728 ISDN4BSD (I4B) was removed from the src tree. You may need to
729 update a your kernel configuration and remove relevant entries.
732 I have checked in code to support multiple routing tables.
733 See the man pages setfib(1) and setfib(2).
734 This is a hopefully backwards compatible version,
735 but to make use of it you need to compile your kernel
736 with options ROUTETABLES=2 (or more up to 16).
739 The 802.11 wireless support was redone to enable multi-bss
740 operation on devices that are capable. The underlying device
741 is no longer used directly but instead wlanX devices are
742 cloned with ifconfig. This requires changes to rc.conf files.
744 ifconfig_ath0="WPA DHCP"
747 ifconfig_wlan0="WPA DHCP"
748 see rc.conf(5) for more details. In addition, mergemaster of
749 /etc/rc.d is highly recommended. Simultaneous update of userland
750 and kernel wouldn't hurt either.
752 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
753 modules were merged into the base wlan module. All references
754 to these modules (e.g. in kernel config files) must be removed.
757 psm(4) has gained write(2) support in native operation level.
758 Arbitrary commands can be written to /dev/psm%d and status can
759 be read back from it. Therefore, an application is responsible
760 for status validation and error recovery. It is a no-op in
761 other operation levels.
764 Support for KSE threading has been removed from the kernel. To
765 run legacy applications linked against KSE libmap.conf may
766 be used. The following libmap.conf may be used to ensure
767 compatibility with any prior release:
769 libpthread.so.1 libthr.so.1
770 libpthread.so.2 libthr.so.2
771 libkse.so.3 libthr.so.3
774 The layout of struct vmspace has changed. This affects libkvm
775 and any executables that link against libkvm and use the
776 kvm_getprocs() function. In particular, but not exclusively,
777 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
778 The effects are minimal, but it's advisable to upgrade world
782 The latest em driver no longer has support in it for the
783 82575 adapter, this is now moved to the igb driver. The
784 split was done to make new features that are incompatible
785 with older hardware easier to do.
788 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
789 likewise the kernel option is now GEOM_LINUX_LVM.
792 The default NFS mount mode has changed from UDP to TCP for
793 increased reliability. If you rely on (insecurely) NFS
794 mounting across a firewall you may need to update your
798 Belatedly note the addition of m_collapse for compacting
802 The fts(3) structures have been changed to use adequate
803 integer types for their members and so to be able to cope
804 with huge file trees. The old fts(3) ABI is preserved
805 through symbol versioning in libc, so third-party binaries
806 using fts(3) should still work, although they will not take
807 advantage of the extended types. At the same time, some
808 third-party software might fail to build after this change
809 due to unportable assumptions made in its source code about
810 fts(3) structure members. Such software should be fixed
811 by its vendor or, in the worst case, in the ports tree.
812 FreeBSD_version 800015 marks this change for the unlikely
813 case that a portable fix is impossible.
816 To upgrade to -current after this date, you must be running
817 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
818 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
821 The ADAPTIVE_GIANT kernel option has been retired because its
822 functionality is the default now.
825 The AT keyboard emulation of sunkbd(4) has been turned on
826 by default. In order to make the special symbols of the Sun
827 keyboards driven by sunkbd(4) work under X these now have
828 to be configured the same way as Sun USB keyboards driven
829 by ukbd(4) (which also does AT keyboard emulation), f.e.:
831 Option "XkbLayout" "us"
832 Option "XkbRules" "xorg"
833 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
836 It has been decided that it is desirable to provide ABI
837 backwards compatibility to the FreeBSD 4/5/6 versions of the
838 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
839 broken with the introduction of PCI domain support (see the
840 20070930 entry). Unfortunately, this required the ABI of
841 PCIOCGETCONF to be broken again in order to be able to
842 provide backwards compatibility to the old version of that
843 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
844 again. As for prominent ports this affects neither pciutils
845 nor xorg-server this time, the hal port needs to be rebuilt
849 The misnamed kthread_create() and friends have been renamed
850 to kproc_create() etc. Many of the callers already
852 I will return kthread_create() and friends in a while
853 with implementations that actually create threads, not procs.
854 Renaming corresponds with version 800002.
860 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
861 WITHOUT_LIBTHR are set.
864 The PCI code has been made aware of PCI domains. This means that
865 the location strings as used by pciconf(8) etc are now in the
866 following format: pci<domain>:<bus>:<device>[:<function>]. It
867 also means that consumers of <sys/pciio.h> potentially need to
868 be recompiled; this includes the hal and xorg-server ports.
871 The caching daemon (cached) was renamed to nscd. nscd.conf
872 configuration file should be used instead of cached.conf and
873 nscd_enable, nscd_pidfile and nscd_flags options should be used
874 instead of cached_enable, cached_pidfile and cached_flags in
878 The getfacl(1) utility now prints owning user and group name
879 instead of owning uid and gid in the three line comment header.
880 This is the same behavior as getfacl(1) on Solaris and Linux.
883 The new IPsec code is now compiled in using the IPSEC option. The
884 IPSEC option now requires "device crypto" be defined in your kernel
885 configuration. The FAST_IPSEC kernel option is now deprecated.
888 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
889 note the changed syntax - keep state is now on by default. Also
890 note the fact that ftp-proxy(8) has been changed from bottom up and
891 has been moved from libexec to usr/sbin. Changes in the ALTQ
892 handling also affect users of IPFW's ALTQ capabilities.
895 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
896 only IPsec supported by FreeBSD. The new IPsec stack
897 supports both IPv4 and IPv6. The kernel option will change
898 after the code changes have settled in. For now the kernel
899 option IPSEC is deprecated and FAST_IPSEC is the only option, that
900 will change after some settling time.
903 The wicontrol(8) utility has been removed from the base system. wi(4)
904 cards should be configured using ifconfig(8), see the man page for more
908 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
909 instead of the nve(4) driver. Please update your configuration
913 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
914 database if it is missing or older than the aliases file. If
915 desired, set the new rc.conf option sendmail_rebuild_aliases
916 to "YES" to restore that functionality.
919 The IPv4 multicast socket code has been considerably modified, and
920 moved to the file sys/netinet/in_mcast.c. Initial support for the
921 RFC 3678 Source-Specific Multicast Socket API has been added to
922 the IPv4 network stack.
924 Strict multicast and broadcast reception is now the default for
925 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
926 has now been removed.
928 The RFC 1724 hack for interface selection has been removed; the use
929 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
930 been added to replace it. Consumers such as routed will soon be
931 updated to reflect this.
933 These changes affect users who are running routed(8) or rdisc(8)
934 from the FreeBSD base system on point-to-point or unnumbered
938 The net80211 layer has changed significantly and all wireless
939 drivers that depend on it need to be recompiled. Further these
940 changes require that any program that interacts with the wireless
941 support in the kernel be recompiled; this includes: ifconfig,
942 wpa_supplicant, hostapd, and wlanstats. Users must also, for
943 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
944 if they use modules for wireless support. These modules implement
945 scanning support for station and ap modes, respectively. Failure
946 to load the appropriate module before marking a wireless interface
947 up will result in a message to the console and the device not
951 The pam_nologin(8) module ceases to provide an authentication
952 function and starts providing an account management function.
953 Consequent changes to /etc/pam.d should be brought in using
954 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
955 need manual editing as follows. Locate this line (or similar):
957 auth required pam_nologin.so no_warn
959 and change it according to this example:
961 account required pam_nologin.so no_warn
963 That is, the first word needs to be changed from "auth" to
964 "account". The new line can be moved to the account section
965 within the file for clarity. Not updating pam.conf(5) files
966 will result in nologin(5) ignored by the respective services.
969 The ether_ioctl() function has been synchronized with ioctl(2)
970 and ifnet.if_ioctl. Due to that, the size of one of its arguments
971 has changed on 64-bit architectures. All kernel modules using
972 ether_ioctl() need to be rebuilt on such architectures.
975 Improved INCLUDE_CONFIG_FILE support has been introduced to the
976 config(8) utility. In order to take advantage of this new
977 functionality, you are expected to recompile and install
978 src/usr.sbin/config. If you don't rebuild config(8), and your
979 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
980 build will be broken because of a missing "kernconfstring"
984 Symbol versioning is enabled by default. To disable it, use
985 option WITHOUT_SYMVER. It is not advisable to attempt to
986 disable symbol versioning once it is enabled; your installworld
987 will break because a symbol version-less libc will get installed
988 before the install tools. As a result, the old install tools,
989 which previously had symbol dependencies to FBSD_1.0, will fail
990 because the freshly installed libc will not have them.
992 The default threading library (providing "libpthread") has been
993 changed to libthr. If you wish to have libkse as your default,
994 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
997 The ABI breakage in sendmail(8)'s libmilter has been repaired
998 so it is no longer necessary to recompile mail filters (aka,
999 milters). If you recompiled mail filters after the 20070408
1000 note, it is not necessary to recompile them again.
1003 The new trunk(4) driver has been renamed to lagg(4) as it better
1004 reflects its purpose. ifconfig will need to be recompiled.
1007 sendmail(8) has been updated to version 8.14.1. Mail filters
1008 (aka, milters) compiled against the libmilter included in the
1009 base operating system should be recompiled.
1012 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
1013 In order to use them one must agree to the respective LICENSE in
1014 share/doc/legal and define legal.intel_<name>.license_ack=1 via
1015 loader.conf(5) or kenv(1). Make sure to deinstall the now
1016 deprecated modules from the respective firmware ports.
1019 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
1020 were removed from FreeBSD's libc. These originally came from INRIA
1021 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
1022 deprecated in previous releases.
1023 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
1024 replace it as a more portable (and re-entrant) API.
1027 To support interrupt filtering a modification to the newbus API
1028 has occurred, ABI was broken and __FreeBSD_version was bumped
1029 to 700031. Please make sure that your kernel and modules are in
1030 sync. For more info:
1031 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
1034 The IPv6 multicast forwarding code may now be loaded into GENERIC
1035 kernels by loading the ip_mroute.ko module. This is built into the
1036 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
1037 set; see src.conf(5) for more information.
1040 The output of netstat -r has changed. Without -n, we now only
1041 print a "network name" without the prefix length if the network
1042 address and mask exactly match a Class A/B/C network, and an entry
1043 exists in the nsswitch "networks" map.
1044 With -n, we print the full unabbreviated CIDR network prefix in
1045 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
1046 This change is in preparation for changes such as equal-cost
1047 multipath, and to more generally assist operational deployment
1048 of FreeBSD as a modern IPv4 router.
1051 PIM has been turned on by default in the IPv4 multicast
1052 routing code. The kernel option 'PIM' has now been removed.
1053 PIM is now built by default if option 'MROUTING' is specified.
1054 It may now be loaded into GENERIC kernels by loading the
1055 ip_mroute.ko module.
1058 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
1059 has been removed. Its functionality may be achieved by explicitly
1060 configuring gif(4) interfaces and using the 'phyint' keyword in
1062 XORP does not support source-routed IPv4 multicast tunnels nor the
1063 integrated IPIP tunneling, therefore it is not affected by this
1064 change. The __FreeBSD_version macro has been bumped to 700030.
1067 Support for PCI Message Signalled Interrupts has been
1068 re-enabled in the bge driver, only for those chips which are
1069 believed to support it properly. If there are any problems,
1070 MSI can be disabled completely by setting the
1071 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
1075 Support for PCI Message Signalled Interrupts has been
1076 disabled again in the bge driver. Many revisions of the
1077 hardware fail to support it properly. Support can be
1078 re-enabled by removing the #define of BGE_DISABLE_MSI in
1079 "src/sys/dev/bge/if_bge.c".
1082 Support for PCI Message Signalled Interrupts has been added
1083 to the bge driver. If there are any problems, MSI can be
1084 disabled completely by setting the 'hw.pci.enable_msi' and
1085 'hw.pci.enable_msix' tunables to 0 in the loader.
1088 The removal of several facets of the experimental Threading
1089 system from the kernel means that the proc and thread structures
1090 have changed quite a bit. I suggest all kernel modules that might
1091 reference these structures be recompiled.. Especially the
1095 Sound infrastructure has been updated with various fixes and
1096 improvements. Most of the changes are pretty much transparent,
1097 with exceptions of followings:
1098 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
1099 moved to their own dev sysctl nodes, for example:
1100 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
1101 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
1102 own chardev in the form of "dsp%d.<function>%d", where <function>
1103 is p = playback, r = record and v = virtual, respectively. Users
1104 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
1105 This does not affect those who are using "/dev/dsp".
1108 geom(4)'s gmirror(8) class metadata structure has been
1109 rev'd from v3 to v4. If you update across this point and
1110 your metadata is converted for you, you will not be easily
1111 able to downgrade since the /boot/kernel.old/geom_mirror.ko
1112 kernel module will be unable to read the v4 metadata. You
1113 can resolve this by doing from the loader(8) prompt:
1115 set vfs.root.mountfrom="ufs:/dev/XXX"
1117 where XXX is the root slice of one of the disks that composed
1118 the mirror (i.e.: /dev/ad0s1a). You can then rebuild
1119 the array the same way you built it originally.
1122 The following binaries have been disconnected from the build:
1123 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
1124 and mount_std. The functionality of these programs has been
1125 moved into the mount program. For example, to mount a devfs
1126 filesystem, instead of using mount_devfs, use: "mount -t devfs".
1127 This does not affect entries in /etc/fstab, since entries in
1128 /etc/fstab are always processed with "mount -t fstype".
1131 Support for PCI Message Signalled Interrupts on i386 and amd64
1132 has been added to the kernel and various drivers will soon be
1133 updated to use MSI when it is available. If there are any problems,
1134 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
1135 and 'hw.pci.enable_msix' tunables to 0 in the loader.
1138 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
1139 The lockmgr object layout has been changed as a result of having
1140 a lock_object embedded in it. As a consequence all file system
1141 kernel modules must be re-compiled. The mutex profiling man page
1142 has not yet been updated to reflect this change.
1145 KSE in the kernel has now been made optional and turned on by
1146 default. Use 'nooption KSE' in your kernel config to turn it
1147 off. All kernel modules *must* be recompiled after this change.
1148 There-after, modules from a KSE kernel should be compatible with
1149 modules from a NOKSE kernel due to the temporary padding fields
1150 added to 'struct proc'.
1153 mrouted and its utilities have been removed from the base system.
1156 Some ioctl(2) command codes have changed. Full backward ABI
1157 compatibility is provided if the "options COMPAT_FREEBSD6" is
1158 present in the kernel configuration file. Make sure to add
1159 this option to your kernel config file, or recompile X.Org
1160 and the rest of ports; otherwise they may refuse to work.
1163 tcpslice has been removed from the base system.
1166 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
1167 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
1168 systat needs to be rebuilt.
1171 libpcap updated to v0.9.4 and tcpdump to v3.9.4
1174 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
1175 for IPFIREWALL_FORWARD is now as it was before when it was first
1176 committed and for years after. The behaviour is now ON.
1179 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
1180 Now it can decrypt files created from different architectures.
1181 Unfortunately, it is no longer able to decrypt a cipher text
1182 generated with an older version on 64 bit architectures.
1183 If you have such a file, you need old utility to decrypt it.
1186 The interface version of the i4b kernel part has changed. So
1187 after updating the kernel sources and compiling a new kernel,
1188 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
1189 be rebuilt, and vice versa.
1192 The XBOX kernel now defaults to the nfe(4) driver instead of
1193 the nve(4) driver. Please update your configuration
1197 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
1198 PCnet family of NICs has been removed. The new le(4) driver serves
1199 as an equivalent but cross-platform replacement with the pcn(4)
1200 driver still providing performance-optimized support for the subset
1201 of AMD Am79C971 PCnet-FAST and greater chips as before.
1204 The machdep.* sysctls and the adjkerntz utility have been
1205 modified a bit. The new adjkerntz utility uses the new
1206 sysctl names and sysctlbyname() calls, so it may be impossible
1207 to run an old /sbin/adjkerntz utility in single-user mode
1208 with a new kernel. Replace the `adjkerntz -i' step before
1209 `make installworld' with:
1211 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
1213 and proceed as usual with the rest of the installworld-stage
1214 steps. Otherwise, you risk installing binaries with their
1215 timestamp set several hours in the future, especially if
1216 you are running with local time set to GMT+X hours.
1219 The ip6fw utility has been removed. The behavior provided by
1220 ip6fw has been in ipfw2 for a good while and the rc.d scripts
1221 have been updated to deal with it. There are some rules that
1222 might not migrate cleanly. Use rc.firewall6 as a template to
1226 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
1227 attachments have been removed. Make sure to configure scc(4)
1228 on sparc64. Note also that by default puc(4) will use uart(4)
1229 and not sio(4) for serial ports because interrupt handling has
1230 been optimized for multi-port serial cards and only uart(4)
1231 implements the interface to support it.
1234 The scc(4) driver replaces puc(4) for Serial Communications
1235 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
1236 Z8530. On sparc64, it is advised to add scc(4) to the kernel
1237 configuration to make sure that the serial ports remain
1241 Most world/kernel related NO_* build options changed names.
1242 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
1243 after FreeBSD ports) and should be set in /etc/src.conf
1244 (the src.conf(5) manpage is provided). Full backwards
1245 compatibility is maintained for the time being though it's
1246 highly recommended to start moving old options out of the
1247 system-wide /etc/make.conf file into the new /etc/src.conf
1248 while also properly renaming them. More conversions will
1249 likely follow. Posting to current@:
1251 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
1254 The NETSMBCRYPTO kernel option has been retired because its
1255 functionality is always included in NETSMB and smbfs.ko now.
1258 The TDFX_LINUX kernel option was retired and replaced by the
1259 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
1260 kernel module. Loading it alone should suffice to get 3dfx support
1261 for Linux apps because it will pull in 3dfx.ko and linux.ko through
1265 The 'audit' group was added to support the new auditing functionality
1266 in the base system. Be sure to follow the directions for updating,
1267 including the requirement to run mergemaster -p.
1270 The kernel ABI to file system modules was changed on i386.
1271 Please make sure that your kernel and modules are in sync.
1274 This actually occured some time ago, but installing the kernel
1275 now also installs a bunch of symbol files for the kernel modules.
1276 This increases the size of /boot/kernel to about 67Mbytes. You
1277 will need twice this if you will eventually back this up to kernel.old
1278 on your next install.
1279 If you have a shortage of room in your root partition, you should add
1280 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
1281 to your /etc/make.conf.
1284 libc's malloc implementation has been replaced. This change has the
1285 potential to uncover application bugs that previously went unnoticed.
1286 See the malloc(3) manual page for more details.
1289 The generic netgraph(4) cookie has been changed. If you upgrade
1290 kernel passing this point, you also need to upgrade userland
1291 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
1294 si(4)'s device files now contain the unit number.
1295 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
1298 The kernel ABI was mostly destroyed due to a change in the size
1299 of struct lock_object which is nested in other structures such
1300 as mutexes which are nested in all sorts of other structures.
1301 Make sure your kernel and modules are in sync.
1304 The page coloring algorithm in the VM subsystem was converted
1305 from tuning with kernel options to autotuning. Please remove
1306 any PQ_* option except PQ_NOOPT from your kernel config.
1309 The net80211-related tools in the tools/tools/ath directory
1310 have been moved to tools/tools/net80211 and renamed with a
1311 "wlan" prefix. Scripts that use them should be adjusted
1315 Scripts in the local_startup directories (as defined in
1316 /etc/defaults/rc.conf) that have the new rc.d semantics will
1317 now be run as part of the base system rcorder. If there are
1318 errors or problems with one of these local scripts, it could
1319 cause boot problems. If you encounter such problems, boot in
1320 single user mode, remove that script from the */rc.d directory.
1321 Please report the problem to the port's maintainer, and the
1322 freebsd-ports@freebsd.org mailing list.
1325 The nodev mount option was deprecated in RELENG_6 (where it
1326 was a no-op), and is now unsupported. If you have nodev or dev listed
1327 in /etc/fstab, remove it, otherwise it will result in a mount error.
1330 ABI between ipfw(4) and ipfw(8) has been changed. You need
1331 to rebuild ipfw(8) when rebuilding kernel.
1334 rp(4)'s device files now contain the unit number.
1335 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
1338 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
1339 Its /etc/rc.conf.d configuration file has been `ppp' from
1340 the beginning, and hence there is no need to touch it.
1343 Now most modules get their build-time options from the kernel
1344 configuration file. A few modules still have fixed options
1345 due to their non-conformant implementation, but they will be
1346 corrected eventually. You may need to review the options of
1347 the modules in use, explicitly specify the non-default options
1348 in the kernel configuration file, and rebuild the kernel and
1352 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
1353 to turn polling(4) on your interfaces.
1356 The old bridge(4) implementation was retired. The new
1357 if_bridge(4) serves as a full functional replacement.
1360 The ai_addrlen of a struct addrinfo was changed to a socklen_t
1361 to conform to POSIX-2001. This change broke an ABI
1362 compatibility on 64 bit architecture. You have to recompile
1363 userland programs that use getaddrinfo(3) on 64 bit
1367 RELENG_6 branched here.
1370 The pccard_ifconfig rc.conf variable has been removed and a new
1371 variable, ifconfig_DEFAULT has been introduced. Unlike
1372 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
1373 do not have ifconfig_ifn entries rather than just those in
1374 removable_interfaces.
1377 Some previous versions of PAM have permitted the use of
1378 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
1379 to third party PAM modules in /usr/local/lib. A change has been
1380 made to require the use of absolute paths in order to avoid
1381 ambiguity and dependence on library path configuration, which may
1382 affect existing configurations.
1385 Major changes to network interface API. All drivers must be
1386 recompiled. Drivers not in the base system will need to be
1387 updated to the new APIs.
1390 Changes were made to kinfo_proc in sys/user.h. Please recompile
1391 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
1392 will not behave correctly.
1394 The API and ABI for hwpmc(4) have changed with the addition
1395 of sampling support. Please recompile lib/libpmc(3) and
1396 usr.sbin/{pmcstat,pmccontrol}.
1399 The OpenBSD dhclient was imported in place of the ISC dhclient
1400 and the network interface configuration scripts were updated
1401 accordingly. If you use DHCP to configure your interfaces, you
1402 must now run devd. Also, DNS updating was lost so you will need
1403 to find a workaround if you use this feature.
1405 The '_dhcp' user was added to support the OpenBSD dhclient. Be
1406 sure to run mergemaster -p (like you are supposed to do every time
1410 if_bridge was added to the tree. This has changed struct ifnet.
1411 Please recompile userland and all network related modules.
1414 The n_net of a struct netent was changed to an uint32_t, and
1415 1st argument of getnetbyaddr() was changed to an uint32_t, to
1416 conform to POSIX-2001. These changes broke an ABI
1417 compatibility on 64 bit architecture. With these changes,
1418 shlib major of libpcap was bumped. You have to recompile
1419 userland programs that use getnetbyaddr(3), getnetbyname(3),
1420 getnetent(3) and/or libpcap on 64 bit architecture.
1423 Kernel parsing of extra options on '#!' first lines of shell
1424 scripts has changed. Lines with multiple options likely will
1425 fail after this date. For full details, please see
1426 http://people.freebsd.org/~gad/Updating-20050528.txt
1429 The packet filter (pf) code has been updated to OpenBSD 3.7
1430 Please note the changed anchor syntax and the fact that
1431 authpf(8) now needs a mounted fdescfs(5) to function.
1434 The NO_MIXED_MODE kernel option has been removed from the i386
1435 amd64 platforms as its use has been superceded by the new local
1436 APIC timer code. Any kernel config files containing this option
1440 The on-disk format of LC_CTYPE files was changed to be machine
1441 independent. Please make sure NOT to use NO_CLEAN buildworld
1442 when crossing this point. Crossing this point also requires
1443 recompile or reinstall of all locale depended packages.
1446 The ifi_epoch member of struct if_data has been changed to
1447 contain the uptime at which the interface was created or the
1448 statistics zeroed rather then the wall clock time because
1449 wallclock time may go backwards. This should have no impact
1450 unless an snmp implementation is using this value (I know of
1451 none at this point.)
1454 The acpi_perf and acpi_throttle drivers are now part of the
1455 acpi(4) main module. They are no longer built separately.
1458 The layout of struct image_params has changed. You have to
1459 recompile all compatibility modules (linux, svr4, etc) for use
1460 with the new kernel.
1463 The p4tcc driver has been merged into cpufreq(4). This makes
1464 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
1465 compile in "device cpufreq" to restore this functionality.
1468 The responsibility of recomputing the file system summary of
1469 a SoftUpdates-enabled dirty volume has been transferred to the
1470 background fsck. A rebuild of fsck(8) utility is recommended
1471 if you have updated the kernel.
1473 To get the old behavior (recompute file system summary at mount
1474 time), you can set vfs.ffs.compute_summary_at_mount=1 before
1475 mounting the new volume.
1478 The cpufreq import is complete. As part of this, the sysctls for
1479 acpi(4) throttling have been removed. The power_profile script
1480 has been updated, so you can use performance/economy_cpu_freq in
1481 rc.conf(5) to set AC on/offline cpu frequencies.
1484 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
1485 requires recompiling libnetgraph and userland netgraph utilities.
1488 Support for abbreviated forms of a number of ipfw options is
1489 now deprecated. Warnings are printed to stderr indicating the
1490 correct full form when a match occurs. Some abbreviations may
1491 be supported at a later date based on user feedback. To be
1492 considered for support, abbreviations must be in use prior to
1493 this commit and unlikely to be confused with current key words.
1496 By a popular demand, a lot of NOFOO options were renamed
1497 to NO_FOO (see bsd.compat.mk for a full list). The old
1498 spellings are still supported, but will cause annoying
1499 warnings on stderr. Make sure you upgrade properly (see
1500 the COMMON ITEMS: section later in this file).
1503 Auto-loading of ancillary wlan modules such as wlan_wep has
1504 been temporarily disabled; you need to statically configure
1505 the modules you need into your kernel or explicitly load them
1506 prior to use. Specifically, if you intend to use WEP encryption
1507 with an 802.11 device load/configure wlan_wep; if you want to
1508 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
1509 and wlan_xauth as required.
1512 The behaviour of ppp(8) has changed slightly. If lqr is enabled
1513 (``enable lqr''), older versions would revert to LCP ECHO mode on
1514 negotiation failure. Now, ``enable echo'' is required for this
1515 behaviour. The ppp version number has been bumped to 3.4.2 to
1519 The wlan support has been updated to split the crypto support
1520 into separate modules. For static WEP you must configure the
1521 wlan_wep module in your system or build and install the module
1522 in place where it can be loaded (the kernel will auto-load
1523 the module when a wep key is configured).
1526 The ath driver has been updated to split the tx rate control
1527 algorithm into a separate module. You need to include either
1528 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
1531 Support for systems with an 80386 CPU has been removed. Please
1532 use FreeBSD 5.x or earlier on systems with an 80386.
1535 We have had a hack which would mount the root filesystem
1536 R/W if the device were named 'md*'. As part of the vnode
1537 work I'm doing I have had to remove this hack. People
1538 building systems which use preloaded MD root filesystems
1539 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
1540 their /etc/rc scripts.
1543 FreeBSD 5.3 shipped here.
1546 The size of struct tcpcb has changed again due to the removal
1547 of RFC1644 T/TCP. You have to recompile userland programs that
1548 read kmem for tcp sockets directly (netstat, sockstat, etc.)
1551 The size of struct tcpcb has changed. You have to recompile
1552 userland programs that read kmem for tcp sockets directly
1553 (netstat, sockstat, etc.)
1556 RELENG_5 branched here. For older entries, please see updating
1557 in the RELENG_5 branch.
1563 Avoid using make -j when upgrading. From time to time in the
1564 past there have been problems using -j with buildworld and/or
1565 installworld. This is especially true when upgrading between
1566 "distant" versions (eg one that cross a major release boundary
1567 or several minor releases, or when several months have passed
1568 on the -current branch).
1570 Sometimes, obscure build problems are the result of environment
1571 poisoning. This can happen because the make utility reads its
1572 environment when searching for values for global variables.
1573 To run your build attempts in an "environmental clean room",
1574 prefix all make commands with 'env -i '. See the env(1) manual
1575 page for more details.
1577 When upgrading from one major version to another it is generally
1578 best to upgrade to the latest code in the currently installed branch
1579 first, then do an upgrade to the new branch. This is the best-tested
1580 upgrade path, and has the highest probability of being successful.
1581 Please try this approach before reporting problems with a major
1586 If you are updating from a prior version of FreeBSD (even one just
1587 a few days old), you should follow this procedure. It is the most
1588 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
1590 make kernel-toolchain
1591 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
1592 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
1594 To test a kernel once
1595 ---------------------
1596 If you just want to boot a kernel once (because you are not sure
1597 if it works, or if you want to boot a known bad kernel to provide
1598 debugging information) run
1599 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
1600 nextboot -k testkernel
1602 To just build a kernel when you know that it won't mess you up
1603 --------------------------------------------------------------
1604 This assumes you are already running a 5.X system. Replace
1605 ${arch} with the architecture of your machine (e.g. "i386",
1606 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
1608 cd src/sys/${arch}/conf
1609 config KERNEL_NAME_HERE
1610 cd ../compile/KERNEL_NAME_HERE
1615 If this fails, go to the "To build a kernel" section.
1617 To rebuild everything and install it on the current system.
1618 -----------------------------------------------------------
1619 # Note: sometimes if you are running current you gotta do more than
1620 # is listed here if you are upgrading from a really old current.
1622 <make sure you have good level 0 dumps>
1624 make kernel KERNCONF=YOUR_KERNEL_HERE
1626 <reboot in single user> [3]
1634 To cross-install current onto a separate partition
1635 --------------------------------------------------
1636 # In this approach we use a separate partition to hold
1637 # current's root, 'usr', and 'var' directories. A partition
1638 # holding "/", "/usr" and "/var" should be about 2GB in
1641 <make sure you have good level 0 dumps>
1644 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1645 <maybe newfs current's root partition>
1646 <mount current's root partition on directory ${CURRENT_ROOT}>
1647 make installworld DESTDIR=${CURRENT_ROOT}
1648 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1649 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1650 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
1651 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1652 <reboot into current>
1653 <do a "native" rebuild/install as described in the previous section>
1654 <maybe install compatibility libraries from ports/misc/compat*>
1658 To upgrade in-place from 5.x-stable to current
1659 ----------------------------------------------
1660 <make sure you have good level 0 dumps>
1662 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
1664 <reboot in single user> [3]
1671 Make sure that you've read the UPDATING file to understand the
1672 tweaks to various things you need. At this point in the life
1673 cycle of current, things change often and you are on your own
1674 to cope. The defaults can also change, so please read ALL of
1675 the UPDATING entries.
1677 Also, if you are tracking -current, you must be subscribed to
1678 freebsd-current@freebsd.org. Make sure that before you update
1679 your sources that you have read and understood all the recent
1680 messages there. If in doubt, please track -stable which has
1681 much fewer pitfalls.
1683 [1] If you have third party modules, such as vmware, you
1684 should disable them at this point so they don't crash your
1687 [3] From the bootblocks, boot -s, and then do
1692 adjkerntz -i # if CMOS is wall time
1693 Also, when doing a major release upgrade, it is required that
1694 you boot into single user mode to do the installworld.
1696 [4] Note: This step is non-optional. Failure to do this step
1697 can result in a significant reduction in the functionality of the
1698 system. Attempting to do it by hand is not recommended and those
1699 that pursue this avenue should read this file carefully, as well
1700 as the archives of freebsd-current and freebsd-hackers mailing lists
1701 for potential gotchas.
1703 [5] Usually this step is a noop. However, from time to time
1704 you may need to do this if you get unknown user in the following
1705 step. It never hurts to do it all the time. You may need to
1706 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1707 install) after the buildworld before this step if you last updated
1708 from current before 20020224 or from -stable before 20020408.
1710 [8] In order to have a kernel that can run the 4.x binaries
1711 needed to do an installworld, you must include the COMPAT_FREEBSD4
1712 option in your kernel. Failure to do so may leave you with a system
1713 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
1714 is required to run the 5.x binaries on more recent kernels.
1716 Make sure that you merge any new devices from GENERIC since the
1717 last time you updated your kernel config file.
1719 [9] When checking out sources, you must include the -P flag to have
1720 cvs prune empty directories.
1722 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1723 "?=" instead of the "=" assignment operator, so that buildworld can
1724 override the CPUTYPE if it needs to.
1726 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1727 not on the command line, or in /etc/make.conf. buildworld will
1728 warn if it is improperly defined.
1731 This file contains a list, in reverse chronological order, of major
1732 breakages in tracking -current. Not all things will be listed here,
1733 and it only starts on October 16, 2004. Updating files can found in
1734 previous releases if your system is older than this.
1736 Copyright information:
1738 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
1740 Redistribution, publication, translation and use, with or without
1741 modification, in full or in part, in any form or format of this
1742 document are permitted without further permission from the author.
1744 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1745 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1746 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1747 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1748 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1749 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1750 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1751 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1752 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1753 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1754 POSSIBILITY OF SUCH DAMAGE.
1756 If you find this document useful, and you want to, you may buy the
1759 Contact Warner Losh if you have any questions about your use of