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 20111004: p6 FreeBSD-SA-11:05.unix (revised)
19 Fix a bug in UNIX socket handling in the linux emulator which was
20 exposed by the security fix in FreeBSD-SA-11:05.unix.
22 20110928: p5 FreeBSD-SA-11:04.compress, FreeBSD-SA-11:05.unix
23 Fix handling of corrupt compress(1)ed data. [11:04]
25 Add missing length checks on unix socket addresses. [11:05]
27 20110528: p4 FreeBSD-SA-11:02.bind
28 Fix BIND remote DoS with large RRSIG RRsets and negative
31 20110420: p3 FreeBSD-SA-11:01.mountd
32 Fix CIDR parsing bug in mountd ACLs.
34 20101129: p2 FreeBSD-SA-10:10.openssl
35 Fix OpenSSL multiple vulnerabilities.
37 20100920: p1 FreeBSD-SA-10:08.bzip2
38 Fix an integer overflow in RLE length parsing when decompressing
44 20100713: FreeBSD-SA-10:07.mbuf
45 Correctly copy the M_RDONLY flag when duplicating a reference
46 to an mbuf external buffer.
49 The config(8) command has been updated to maintain compatibility
50 with config files from 8.0-RELEASE. You will need a new version
51 of config to build kernels (this version can be used from 8.0-RELEASE
52 forward). The buildworld target will generate it, so following
53 the instructions in this file for updating will work glitch-free.
54 Merely doing a make buildkernel without first doing a make buildworld
55 (or kernel-toolchain), or attempting to build a kernel using
56 traidtional methods will generate a config version warning, indicating
60 The rc.firewall and rc.firewall6 were unified, and
61 rc.firewall6 and rc.d/ip6fw were removed.
62 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc
63 variables are obsoleted. Instead, the following new rc
64 variables are added to rc.d/ipfw:
66 firewall_client_net_ipv6, firewall_simple_iif_ipv6,
67 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6,
68 firewall_simple_onet_ipv6
70 The meanings correspond to the relevant IPv4 variables.
73 COMPAT_IA32 has been added as an alias for COMPAT_FREEBSD32. A new
74 version of config(8) is required. The error message when you hit this
75 condition is confusing (COMPAT_FREEBSD32 duplicate option), when it
76 should really say "your config is too old to compile this new kernel."
79 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32
80 to allow 32-bit compatibility on non-x86 platforms. All kernel
81 configurations on amd64 and ia64 platforms using these options must
82 be modified accordingly.
85 Introduce the kernel thread "deadlock resolver" (which can be enabled
86 via the DEADLKRES option, see NOTES for more details) and the
87 sleepq_type() function for sleepqueues.
93 802.11s D3.03 support was committed. This is incompatible with
94 the previous code, which was based on D3.0.
97 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
98 mount(8) and -a option for df(1) to see them.
101 Remove the option STOP_NMI. The default action is now to use NMI
102 only for KDB via the newly introduced function stop_cpus_hard()
103 and maintain stop_cpus() to just use a normal IPI_STOP on ia32
110 Bump the shared library version numbers for all libraries that
111 do not use symbol versioning as part of the 8.0-RELEASE cycle.
112 Bump __FreeBSD_version to 800105.
115 Due to changes in the implementation of virtual network stack
116 support, all network-related kernel modules must be recompiled.
117 As this change breaks the ABI, bump __FreeBSD_version to 800104.
120 The TOE interface to the TCP syncache has been modified to remove struct
121 tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. The
122 cxgb driver is the only TOE consumer affected by this change, and needs
123 to be recompiled along with the kernel. As this change breaks the ABI,
124 bump __FreeBSD_version to 800103.
127 Padding has been added to struct tcpcb, sackhint and tcpstat in
128 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
129 maintainig the ABI. However, this change breaks the ABI, so bump
130 __FreeBSD_version to 800102. User space tools that rely on the size of
131 any of these structs (e.g. sockstat) need to be recompiled.
134 The NFS_LEGACYRPC option has been removed along with the old
135 kernel RPC implementation that this option selected. Kernel
136 configurations may need to be adjusted.
139 The network interface device nodes at /dev/net/<interface> have
140 been removed. All ioctl operations can be performed the normal
141 way using routing sockets. The kqueue functionality can
142 generally be replaced with routing sockets.
145 The documentation from the FreeBSD Documentation Project
146 (Handbook, FAQ, etc.) is now installed via packages by
147 sysinstall(8) and under the /usr/local/share/doc/freebsd
148 directory instead of /usr/share/doc.
151 The ABI of various structures related to the SYSV IPC API have
152 been changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43
153 kernel options now all require COMPAT_FREEBSD7.
154 Bump __FreeBSD_version to 800100.
157 Layout of struct vnet has changed as routing related variables
158 were moved to their own Vimage module. Modules need to be
159 recompiled. Bump __FreeBSD_version to 800099.
162 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023
163 and 1024 respectively. As long as no more than 16 groups per
164 process are used, no changes should be visible. When more
165 than 16 groups are used, old binaries may fail if they call
166 getgroups() or getgrouplist() with statically sized storage.
167 Recompiling will work around this, but applications should be
168 modified to use dynamically allocated storage for group arrays
169 as POSIX.1-2008 does not cap an implementation's number of
170 supported groups at NGROUPS_MAX+1 as previous versions did.
172 NFS and portalfs mounts may also be affected as the list of
173 groups is truncated to 16. Users of NFS who use more than 16
174 groups, should take care that negative group permissions are not
175 used on the exported file systems as they will not be reliable
176 unless a GSSAPI based authentication method is used.
179 The compiling option ADAPTIVE_LOCKMGRS has been introduced.
180 This option compiles in the support for adaptive spinning for lockmgrs
181 which want to enable it. The lockinit() function now accepts the
182 flag LK_ADAPTIVE in order to make the lock object subject to
183 adaptive spinning when both held in write and read mode.
186 The layout of the structure returned by IEEE80211_IOC_STA_INFO
187 has changed. User applications that use this ioctl need to be
191 The layout of struct thread has changed. Kernel and modules
195 The layout of structs ifnet, domain, protosw and vnet_net has
196 changed. Kernel modules need to be rebuilt.
197 Bump __FreeBSD_version to 800097.
200 window(1) has been removed from the base system. It can now be
201 installed from ports. The port is called misc/window.
204 The way we are storing and accessing `routing table' entries
205 has changed. Programs reading the FIB, like netstat, need to
209 A new netisr implementation has been added for FreeBSD 8. Network
210 file system modules, such as igmp, ipdivert, and others, should be
212 Bump __FreeBSD_version to 800096.
215 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose
219 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
220 Bump __FreeBSD_version to 800094.
223 Add mnt_xflag field to 'struct mount'. File system modules
225 Bump __FreeBSD_version to 800093.
228 The compiling option ADAPTIVE_SX has been retired while it has been
229 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
230 The KPI for sx_init_flags() changes as accepting flags:
231 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag
232 has been introduced in order to handle the reversed logic.
233 Bump __FreeBSD_version to 800092.
236 Add support for hierarchical jails. Remove global securelevel.
237 Bump __FreeBSD_version to 800091.
240 The layout of struct vnet_net has changed, therefore modules
242 Bump __FreeBSD_version to 800090.
245 The newly imported zic(8) produces a new format in the
246 output. Please run tzsetup(8) to install the newly created
247 data to /etc/localtime.
250 The sysctl tree for the usb stack has renamed from hw.usb2.* to
251 hw.usb.* and is now consistent again with previous releases.
254 802.11 monitor mode support was revised and driver api's
255 were changed. Drivers dependent on net80211 now support
256 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No
257 user-visible data structures were changed but applications
258 that use DLT_IEEE802_11 may require changes.
259 Bump __FreeBSD_version to 800088.
262 The layout of the following structs has changed: sysctl_oid,
263 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
264 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
265 panics may be experienced. World rebuild is required for
266 correctly checking networking state from userland.
267 Bump __FreeBSD_version to 800085.
270 MLDv2 and Source-Specific Multicast (SSM) have been merged
271 to the IPv6 stack. VIMAGE hooks are in but not yet used.
272 The implementation of SSM within FreeBSD's IPv6 stack closely
273 follows the IPv4 implementation.
275 For kernel developers:
277 * The most important changes are that the ip6_output() and
278 ip6_input() paths no longer take the IN6_MULTI_LOCK,
279 and this lock has been downgraded to a non-recursive mutex.
281 * As with the changes to the IPv4 stack to support SSM, filtering
282 of inbound multicast traffic must now be performed by transport
283 protocols within the IPv6 stack. This does not apply to TCP and
284 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
286 * The KPIs used by IPv6 multicast are similar to those used by
287 the IPv4 stack, with the following differences:
288 * im6o_mc_filter() is analogous to imo_multicast_filter().
289 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
290 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
291 * IN6_LOOKUP_MULTI() has been deprecated and removed.
292 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
293 for MLDv1 have an additional 'timer' argument which is used to
294 jitter the initial membership report for the solicited-node
295 multicast membership on-link.
296 * This is not strictly needed for MLDv2, which already jitters
297 its report transmissions. However, the 'timer' argument is
298 preserved in case MLDv1 is active on the interface.
300 * The KAME linked-list based IPv6 membership implementation has
301 been refactored to use a vector similar to that used by the IPv4
303 Code which maintains a list of its own multicast memberships
304 internally, e.g. carp, has been updated to reflect the new
307 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
308 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
309 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
310 implementation constraint which needs to be addressed in HEAD.
312 For application developers:
314 * The changes are broadly similar to those made for the IPv4
317 * The use of IPv4 and IPv6 multicast socket options on the same
318 socket, using mapped addresses, HAS NOT been tested or supported.
320 * There are a number of issues with the implementation of various
321 IPv6 multicast APIs which need to be resolved in the API surface
322 before the implementation is fully compatible with KAME userland
323 use, and these are mostly to do with interface index treatment.
325 * The literature available discusses the use of either the delta / ASM
326 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
327 using setsourcefilter(3)/getsourcefilter(3). For more information
328 please refer to RFC 3768, 'Socket Interface Extensions for
329 Multicast Source Filters'.
331 * Applications which use the published RFC 3678 APIs should be fine.
333 For systems administrators:
335 * The mtest(8) utility has been refactored to support IPv6, in
336 addition to IPv4. Interface addresses are no longer accepted
337 as arguments, their names must be used instead. The utility
338 will map the interface name to its first IPv4 address as
339 returned by getifaddrs(3).
341 * The ifmcstat(8) utility has also been updated to print the MLDv2
342 endpoint state and source filter lists via sysctl(3).
344 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
345 loopback of IPv6 multicast datagrams by default; it defaults to 1
346 to preserve the existing behaviour. Disabling multicast loopback is
347 recommended for optimal system performance.
349 * The IPv6 MROUTING code has been changed to examine this sysctl
350 instead of attempting to perform a group lookup before looping
351 back forwarded datagrams.
353 Bump __FreeBSD_version to 800084.
356 Implement low-level Bluetooth HCI API.
357 Bump __FreeBSD_version to 800083.
360 The layout of struct malloc_type, used by modules to register new
361 memory allocation types, has changed. Most modules will need to
362 be rebuilt or panics may be experienced.
363 Bump __FreeBSD_version to 800081.
366 Anticipate overflowing inp_flags - add inp_flags2.
367 This changes most offsets in inpcb, so checking v4 connection
368 state will require a world rebuild.
369 Bump __FreeBSD_version to 800080.
372 Add an llentry to struct route and struct route_in6. Modules
373 embedding a struct route will need to be recompiled.
374 Bump __FreeBSD_version to 800079.
377 The size of rt_metrics_lite and by extension rtentry has changed.
378 Networking administration apps will need to be recompiled.
379 The route command now supports show as an alias for get, weighting
380 of routes, sticky and nostick flags to alter the behavior of stateful
382 Bump __FreeBSD_version to 800078.
385 Do not use Giant for kbdmux(4) locking. This is wrong and
386 apparently causing more problems than it solves. This will
387 re-open the issue where interrupt handlers may race with
388 kbdmux(4) in polling mode. Typical symptoms include (but
389 not limited to) duplicated and/or missing characters when
390 low level console functions (such as gets) are used while
391 interrupts are enabled (for example geli password prompt,
392 mountroot prompt etc.). Disabling kbdmux(4) may help.
395 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
396 kernel modules referencing any of the above need to be recompiled.
397 Bump __FreeBSD_version to 800075.
400 GEOM_PART has become the default partition slicer for storage devices,
401 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
402 introduces some changes:
404 MSDOS/EBR: the devices created from MSDOS extended partition entries
405 (EBR) can be named differently than with GEOM_MBR and are now symlinks
406 to devices with offset-based names. fstabs may need to be modified.
408 BSD: the "geometry does not match label" warning is harmless in most
409 cases but it points to problems in file system misalignment with
410 disk geometry. The "c" partition is now implicit, covers the whole
411 top-level drive and cannot be (mis)used by users.
413 General: Kernel dumps are now not allowed to be written to devices
414 whose partition types indicate they are meant to be used for file
415 systems (or, in case of MSDOS partitions, as something else than
418 Most of these changes date approximately from 200812.
421 The uscanner(4) driver has been removed from the kernel. This follows
422 Linux removing theirs in 2.6 and making libusb the default interface
426 The multicast forwarding code has been cleaned up. netstat(1)
427 only relies on KVM now for printing bandwidth upcall meters.
428 The IPv4 and IPv6 modules are split into ip_mroute_mod and
429 ip6_mroute_mod respectively. The config(5) options for statically
430 compiling this code remain the same, i.e. 'options MROUTING'.
433 Support for the IFF_NEEDSGIANT network interface flag has been
434 removed, which means that non-MPSAFE network device drivers are no
435 longer supported. In particular, if_ar, if_sr, and network device
436 drivers from the old (legacy) USB stack can no longer be built or
440 POSIX.1 Native Language Support (NLS) has been enabled in libc and
441 a bunch of new language catalog files have also been added.
442 This means that some common libc messages are now localized and
443 they depend on the LC_MESSAGES environmental variable.
446 The k8temp(4) driver has been renamed to amdtemp(4) since
447 support for K10 and K11 CPU families was added.
450 IGMPv3 and Source-Specific Multicast (SSM) have been merged
451 to the IPv4 stack. VIMAGE hooks are in but not yet used.
453 For kernel developers, the most important changes are that the
454 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
455 and this lock has been downgraded to a non-recursive mutex.
457 Transport protocols (UDP, Raw IP) are now responsible for filtering
458 inbound multicast traffic according to group membership and source
459 filters. The imo_multicast_filter() KPI exists for this purpose.
460 Transports which do not use multicast (SCTP, TCP) already reject
461 multicast by default. Forwarding and receive performance may improve
462 as a mutex acquisition is no longer needed in the ip_input()
463 low-level input path. in_addmulti() and in_delmulti() are shimmed
464 to new KPIs which exist to support SSM in-kernel.
466 For application developers, it is recommended that loopback of
467 multicast datagrams be disabled for best performance, as this
468 will still cause the lock to be taken for each looped-back
469 datagram transmission. The net.inet.ip.mcast.loop sysctl may
470 be tuned to 0 to disable loopback by default; it defaults to 1
471 to preserve the existing behaviour.
473 For systems administrators, to obtain best performance with
474 multicast reception and multiple groups, it is always recommended
475 that a card with a suitably precise hash filter is used. Hash
476 collisions will still result in the lock being taken within the
477 transport protocol input path to check group membership.
479 If deploying FreeBSD in an environment with IGMP snooping switches,
480 it is recommended that the net.inet.igmp.sendlocal sysctl remain
481 enabled; this forces 224.0.0.0/24 group membership to be announced
484 The size of 'struct igmpstat' has changed; netstat needs to be
485 recompiled to reflect this.
486 Bump __FreeBSD_version to 800070.
489 libusb20.so.1 is now installed as libusb.so.1 and the ports system
490 updated to use it. This requires a buildworld/installworld in order to
491 update the library and dependencies (usbconfig, etc). Its advisable to
492 rebuild all ports which uses libusb. More specific directions are given
493 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
494 libusb are no longer required and can be removed.
497 A workaround is committed to allow the creation of System V shared
498 memory segment of size > 2 GB on the 64-bit architectures.
499 Due to a limitation of the existing ABI, the shm_segsz member
500 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
501 wrong for large segments. Note that limits must be explicitly
502 raised to allow such segments to be created.
505 The layout of struct ifnet has changed, requiring a rebuild of all
506 network device driver modules.
509 The /dev handling for the new USB stack has changed, a
510 buildworld/installworld is required for libusb20.
513 The new USB2 stack has now been permanently moved in and all kernel and
514 module names reverted to their previous values (eg, usb, ehci, ohci,
515 ums, ...). The old usb stack can be compiled in by prefixing the name
516 with the letter 'o', the old usb modules have been removed.
517 Updating entry 20090216 for xorg and 20090215 for libmap may still
521 The rc.conf(5) option if_up_delay has been renamed to
522 defaultroute_delay to better reflect its purpose. If you have
523 customized this setting in /etc/rc.conf you need to update it to
527 xorg 7.4 wants to configure its input devices via hald which does not
528 yet work with USB2. If the keyboard/mouse does not work in xorg then
530 Option "AllowEmptyInput" "off"
531 to your ServerLayout section. This will cause X to use the configured
532 kbd and mouse sections from your xorg.conf.
535 The GENERIC kernels for all architectures now default to the new USB2
536 stack. No kernel config options or code have been removed so if a
537 problem arises please report it and optionally revert to the old USB
538 stack. If you are loading USB kernel modules or have a custom kernel
539 that includes GENERIC then ensure that usb names are also changed over,
540 eg uftdi -> usb2_serial_ftdi.
542 Older programs linked against the ports libusb 0.1 need to be
543 redirected to the new stack's libusb20. /etc/libmap.conf can
545 # Map old usb library to new one for usb2 stack
546 libusb-0.1.so.8 libusb20.so.1
549 All USB ethernet devices now attach as interfaces under the name ueN
550 (eg. ue0). This is to provide a predictable name as vendors often
551 change usb chipsets in a product without notice.
554 The ichsmb(4) driver has been changed to require SMBus slave
555 addresses be left-justified (xxxxxxx0b) rather than right-justified.
556 All of the other SMBus controller drivers require left-justified
557 slave addresses, so this change makes all the drivers provide the
561 INET6 statistics (struct ip6stat) was updated.
562 netstat(1) needs to be recompiled.
565 NTFS has been removed from GENERIC kernel on amd64 to match
566 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
567 will load ntfs.ko module automatically when NTFS support is
568 actually needed, unless ntfs.ko is not installed or security
569 level prohibits loading kernel modules. If either is the case,
570 "options NTFS" has to be added into kernel config.
573 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
574 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
575 800061. User space tools that rely on the size of struct tcpcb in
576 tcp_var.h (e.g. sockstat) need to be recompiled.
579 ng_tty(4) module updated to match the new TTY subsystem.
580 Due to API change, user-level applications must be updated.
581 New API support added to mpd5 CVS and expected to be present
582 in next mpd5.3 release.
585 With __FreeBSD_version 800060 the makefs tool is part of
586 the base system (it was a port).
589 The afdata and ifnet locks have been changed from mutexes to
590 rwlocks, network modules will need to be re-compiled.
593 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
594 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
595 The new code reduced struct rtentry{} by 16 bytes on 32-bit
596 architecture and 40 bytes on 64-bit architecture. The userland
597 applications "arp" and "ndp" have been updated accordingly.
598 The output from "netstat -r" shows only routing entries and
599 none of the L2 information.
602 __FreeBSD_version 800057 marks the switchover from the
603 binary ath hal to source code. Users must add the line:
605 options AH_SUPPORT_AR5416
607 to their kernel config files when specifying:
611 The ath_hal module no longer exists; the code is now compiled
612 together with the driver in the ath module. It is now
613 possible to tailor chip support (i.e. reduce the set of chips
614 and thereby the code size); consult ath_hal(4) for details.
617 __FreeBSD_version 800054 adds memory barriers to
618 <machine/atomic.h>, new interfaces to ifnet to facilitate
619 multiple hardware transmit queues for cards that support
620 them, and a lock-less ring-buffer implementation to
621 enable drivers to more efficiently manage queueing of
625 A new version of ZFS (version 13) has been merged to -HEAD.
626 This version has zpool attribute "listsnapshots" off by
627 default, which means "zfs list" does not show snapshots,
628 and is the same as Solaris behavior.
631 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
634 The uhci, ohci, ehci and slhci USB Host controller drivers have
635 been put into separate modules. If you load the usb module
636 separately through loader.conf you will need to load the
637 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
638 controller add the following to loader.conf:
644 The ABI used by the PMC toolset has changed. Please keep
645 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
649 atapci kernel module now includes only generic PCI ATA
650 driver. AHCI driver moved to ataahci kernel module.
651 All vendor-specific code moved into separate kernel modules:
652 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
653 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
654 atamarvell, atamicron, atanational, atanetcell, atanvidia,
655 atapromise, ataserverworks, atasiliconimage, atasis, atavia
658 The TTY subsystem of the kernel has been replaced by a new
659 implementation, which provides better scalability and an
660 improved driver model. Most common drivers have been migrated to
661 the new TTY subsystem, while others have not. The following
662 drivers have not yet been ported to the new TTY layer:
665 cy, digi, rc, rp, sio
671 ng_h4, ng_tty, ppp, sl, snp
673 Adding these drivers to your kernel configuration file shall
674 cause compilation to fail.
677 ntpd has been upgraded to 4.2.4p5.
680 OpenSSH has been upgraded to 5.1p1.
682 For many years, FreeBSD's version of OpenSSH preferred DSA
683 over RSA for host and user authentication keys. With this
684 upgrade, we've switched to the vendor's default of RSA over
685 DSA. This may cause upgraded clients to warn about unknown
686 host keys even for previously known hosts. Users should
687 follow the usual procedure for verifying host keys before
688 accepting the RSA key.
690 This can be circumvented by setting the "HostKeyAlgorithms"
691 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
694 Please note that the sequence of keys offered for
695 authentication has been changed as well. You may want to
696 specify IdentityFile in a different order to revert this
700 The sio(4) driver has been removed from the i386 and amd64
701 kernel configuration files. This means uart(4) is now the
702 default serial port driver on those platforms as well.
704 To prevent collisions with the sio(4) driver, the uart(4) driver
705 uses different names for its device nodes. This means the
706 onboard serial port will now most likely be called "ttyu0"
707 instead of "ttyd0". You may need to reconfigure applications to
708 use the new device names.
710 When using the serial port as a boot console, be sure to update
711 /boot/device.hints and /etc/ttys before booting the new kernel.
712 If you forget to do so, you can still manually specify the hints
713 at the loader prompt:
715 set hint.uart.0.at="isa"
716 set hint.uart.0.port="0x3F8"
717 set hint.uart.0.flags="0x10"
718 set hint.uart.0.irq="4"
722 The gpt(8) utility has been removed. Use gpart(8) to partition
726 The version that Linuxulator emulates was changed from 2.4.2
727 to 2.6.16. If you experience any problems with Linux binaries
728 please try to set sysctl compat.linux.osrelease to 2.4.2 and
729 if it fixes the problem contact emulation mailing list.
732 ISDN4BSD (I4B) was removed from the src tree. You may need to
733 update a your kernel configuration and remove relevant entries.
736 I have checked in code to support multiple routing tables.
737 See the man pages setfib(1) and setfib(2).
738 This is a hopefully backwards compatible version,
739 but to make use of it you need to compile your kernel
740 with options ROUTETABLES=2 (or more up to 16).
743 The 802.11 wireless support was redone to enable multi-bss
744 operation on devices that are capable. The underlying device
745 is no longer used directly but instead wlanX devices are
746 cloned with ifconfig. This requires changes to rc.conf files.
748 ifconfig_ath0="WPA DHCP"
751 ifconfig_wlan0="WPA DHCP"
752 see rc.conf(5) for more details. In addition, mergemaster of
753 /etc/rc.d is highly recommended. Simultaneous update of userland
754 and kernel wouldn't hurt either.
756 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
757 modules were merged into the base wlan module. All references
758 to these modules (e.g. in kernel config files) must be removed.
761 psm(4) has gained write(2) support in native operation level.
762 Arbitrary commands can be written to /dev/psm%d and status can
763 be read back from it. Therefore, an application is responsible
764 for status validation and error recovery. It is a no-op in
765 other operation levels.
768 Support for KSE threading has been removed from the kernel. To
769 run legacy applications linked against KSE libmap.conf may
770 be used. The following libmap.conf may be used to ensure
771 compatibility with any prior release:
773 libpthread.so.1 libthr.so.1
774 libpthread.so.2 libthr.so.2
775 libkse.so.3 libthr.so.3
778 The layout of struct vmspace has changed. This affects libkvm
779 and any executables that link against libkvm and use the
780 kvm_getprocs() function. In particular, but not exclusively,
781 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
782 The effects are minimal, but it's advisable to upgrade world
786 The latest em driver no longer has support in it for the
787 82575 adapter, this is now moved to the igb driver. The
788 split was done to make new features that are incompatible
789 with older hardware easier to do.
792 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
793 likewise the kernel option is now GEOM_LINUX_LVM.
796 The default NFS mount mode has changed from UDP to TCP for
797 increased reliability. If you rely on (insecurely) NFS
798 mounting across a firewall you may need to update your
802 Belatedly note the addition of m_collapse for compacting
806 The fts(3) structures have been changed to use adequate
807 integer types for their members and so to be able to cope
808 with huge file trees. The old fts(3) ABI is preserved
809 through symbol versioning in libc, so third-party binaries
810 using fts(3) should still work, although they will not take
811 advantage of the extended types. At the same time, some
812 third-party software might fail to build after this change
813 due to unportable assumptions made in its source code about
814 fts(3) structure members. Such software should be fixed
815 by its vendor or, in the worst case, in the ports tree.
816 FreeBSD_version 800015 marks this change for the unlikely
817 case that a portable fix is impossible.
820 To upgrade to -current after this date, you must be running
821 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
822 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
825 The ADAPTIVE_GIANT kernel option has been retired because its
826 functionality is the default now.
829 The AT keyboard emulation of sunkbd(4) has been turned on
830 by default. In order to make the special symbols of the Sun
831 keyboards driven by sunkbd(4) work under X these now have
832 to be configured the same way as Sun USB keyboards driven
833 by ukbd(4) (which also does AT keyboard emulation), f.e.:
835 Option "XkbLayout" "us"
836 Option "XkbRules" "xorg"
837 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
840 It has been decided that it is desirable to provide ABI
841 backwards compatibility to the FreeBSD 4/5/6 versions of the
842 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
843 broken with the introduction of PCI domain support (see the
844 20070930 entry). Unfortunately, this required the ABI of
845 PCIOCGETCONF to be broken again in order to be able to
846 provide backwards compatibility to the old version of that
847 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
848 again. As for prominent ports this affects neither pciutils
849 nor xorg-server this time, the hal port needs to be rebuilt
853 The misnamed kthread_create() and friends have been renamed
854 to kproc_create() etc. Many of the callers already
856 I will return kthread_create() and friends in a while
857 with implementations that actually create threads, not procs.
858 Renaming corresponds with version 800002.
864 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
865 WITHOUT_LIBTHR are set.
868 The PCI code has been made aware of PCI domains. This means that
869 the location strings as used by pciconf(8) etc are now in the
870 following format: pci<domain>:<bus>:<device>[:<function>]. It
871 also means that consumers of <sys/pciio.h> potentially need to
872 be recompiled; this includes the hal and xorg-server ports.
875 The caching daemon (cached) was renamed to nscd. nscd.conf
876 configuration file should be used instead of cached.conf and
877 nscd_enable, nscd_pidfile and nscd_flags options should be used
878 instead of cached_enable, cached_pidfile and cached_flags in
882 The getfacl(1) utility now prints owning user and group name
883 instead of owning uid and gid in the three line comment header.
884 This is the same behavior as getfacl(1) on Solaris and Linux.
887 The new IPsec code is now compiled in using the IPSEC option. The
888 IPSEC option now requires "device crypto" be defined in your kernel
889 configuration. The FAST_IPSEC kernel option is now deprecated.
892 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
893 note the changed syntax - keep state is now on by default. Also
894 note the fact that ftp-proxy(8) has been changed from bottom up and
895 has been moved from libexec to usr/sbin. Changes in the ALTQ
896 handling also affect users of IPFW's ALTQ capabilities.
899 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
900 only IPsec supported by FreeBSD. The new IPsec stack
901 supports both IPv4 and IPv6. The kernel option will change
902 after the code changes have settled in. For now the kernel
903 option IPSEC is deprecated and FAST_IPSEC is the only option, that
904 will change after some settling time.
907 The wicontrol(8) utility has been removed from the base system. wi(4)
908 cards should be configured using ifconfig(8), see the man page for more
912 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
913 instead of the nve(4) driver. Please update your configuration
917 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
918 database if it is missing or older than the aliases file. If
919 desired, set the new rc.conf option sendmail_rebuild_aliases
920 to "YES" to restore that functionality.
923 The IPv4 multicast socket code has been considerably modified, and
924 moved to the file sys/netinet/in_mcast.c. Initial support for the
925 RFC 3678 Source-Specific Multicast Socket API has been added to
926 the IPv4 network stack.
928 Strict multicast and broadcast reception is now the default for
929 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
930 has now been removed.
932 The RFC 1724 hack for interface selection has been removed; the use
933 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
934 been added to replace it. Consumers such as routed will soon be
935 updated to reflect this.
937 These changes affect users who are running routed(8) or rdisc(8)
938 from the FreeBSD base system on point-to-point or unnumbered
942 The net80211 layer has changed significantly and all wireless
943 drivers that depend on it need to be recompiled. Further these
944 changes require that any program that interacts with the wireless
945 support in the kernel be recompiled; this includes: ifconfig,
946 wpa_supplicant, hostapd, and wlanstats. Users must also, for
947 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
948 if they use modules for wireless support. These modules implement
949 scanning support for station and ap modes, respectively. Failure
950 to load the appropriate module before marking a wireless interface
951 up will result in a message to the console and the device not
955 The pam_nologin(8) module ceases to provide an authentication
956 function and starts providing an account management function.
957 Consequent changes to /etc/pam.d should be brought in using
958 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
959 need manual editing as follows. Locate this line (or similar):
961 auth required pam_nologin.so no_warn
963 and change it according to this example:
965 account required pam_nologin.so no_warn
967 That is, the first word needs to be changed from "auth" to
968 "account". The new line can be moved to the account section
969 within the file for clarity. Not updating pam.conf(5) files
970 will result in nologin(5) ignored by the respective services.
973 The ether_ioctl() function has been synchronized with ioctl(2)
974 and ifnet.if_ioctl. Due to that, the size of one of its arguments
975 has changed on 64-bit architectures. All kernel modules using
976 ether_ioctl() need to be rebuilt on such architectures.
979 Improved INCLUDE_CONFIG_FILE support has been introduced to the
980 config(8) utility. In order to take advantage of this new
981 functionality, you are expected to recompile and install
982 src/usr.sbin/config. If you don't rebuild config(8), and your
983 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
984 build will be broken because of a missing "kernconfstring"
988 Symbol versioning is enabled by default. To disable it, use
989 option WITHOUT_SYMVER. It is not advisable to attempt to
990 disable symbol versioning once it is enabled; your installworld
991 will break because a symbol version-less libc will get installed
992 before the install tools. As a result, the old install tools,
993 which previously had symbol dependencies to FBSD_1.0, will fail
994 because the freshly installed libc will not have them.
996 The default threading library (providing "libpthread") has been
997 changed to libthr. If you wish to have libkse as your default,
998 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
1001 The ABI breakage in sendmail(8)'s libmilter has been repaired
1002 so it is no longer necessary to recompile mail filters (aka,
1003 milters). If you recompiled mail filters after the 20070408
1004 note, it is not necessary to recompile them again.
1007 The new trunk(4) driver has been renamed to lagg(4) as it better
1008 reflects its purpose. ifconfig will need to be recompiled.
1011 sendmail(8) has been updated to version 8.14.1. Mail filters
1012 (aka, milters) compiled against the libmilter included in the
1013 base operating system should be recompiled.
1016 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
1017 In order to use them one must agree to the respective LICENSE in
1018 share/doc/legal and define legal.intel_<name>.license_ack=1 via
1019 loader.conf(5) or kenv(1). Make sure to deinstall the now
1020 deprecated modules from the respective firmware ports.
1023 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
1024 were removed from FreeBSD's libc. These originally came from INRIA
1025 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
1026 deprecated in previous releases.
1027 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
1028 replace it as a more portable (and re-entrant) API.
1031 To support interrupt filtering a modification to the newbus API
1032 has occurred, ABI was broken and __FreeBSD_version was bumped
1033 to 700031. Please make sure that your kernel and modules are in
1034 sync. For more info:
1035 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
1038 The IPv6 multicast forwarding code may now be loaded into GENERIC
1039 kernels by loading the ip_mroute.ko module. This is built into the
1040 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
1041 set; see src.conf(5) for more information.
1044 The output of netstat -r has changed. Without -n, we now only
1045 print a "network name" without the prefix length if the network
1046 address and mask exactly match a Class A/B/C network, and an entry
1047 exists in the nsswitch "networks" map.
1048 With -n, we print the full unabbreviated CIDR network prefix in
1049 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
1050 This change is in preparation for changes such as equal-cost
1051 multipath, and to more generally assist operational deployment
1052 of FreeBSD as a modern IPv4 router.
1055 PIM has been turned on by default in the IPv4 multicast
1056 routing code. The kernel option 'PIM' has now been removed.
1057 PIM is now built by default if option 'MROUTING' is specified.
1058 It may now be loaded into GENERIC kernels by loading the
1059 ip_mroute.ko module.
1062 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
1063 has been removed. Its functionality may be achieved by explicitly
1064 configuring gif(4) interfaces and using the 'phyint' keyword in
1066 XORP does not support source-routed IPv4 multicast tunnels nor the
1067 integrated IPIP tunneling, therefore it is not affected by this
1068 change. The __FreeBSD_version macro has been bumped to 700030.
1071 Support for PCI Message Signalled Interrupts has been
1072 re-enabled in the bge driver, only for those chips which are
1073 believed to support it properly. If there are any problems,
1074 MSI can be disabled completely by setting the
1075 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
1079 Support for PCI Message Signalled Interrupts has been
1080 disabled again in the bge driver. Many revisions of the
1081 hardware fail to support it properly. Support can be
1082 re-enabled by removing the #define of BGE_DISABLE_MSI in
1083 "src/sys/dev/bge/if_bge.c".
1086 Support for PCI Message Signalled Interrupts has been added
1087 to the bge driver. If there are any problems, MSI can be
1088 disabled completely by setting the 'hw.pci.enable_msi' and
1089 'hw.pci.enable_msix' tunables to 0 in the loader.
1092 The removal of several facets of the experimental Threading
1093 system from the kernel means that the proc and thread structures
1094 have changed quite a bit. I suggest all kernel modules that might
1095 reference these structures be recompiled.. Especially the
1099 Sound infrastructure has been updated with various fixes and
1100 improvements. Most of the changes are pretty much transparent,
1101 with exceptions of followings:
1102 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
1103 moved to their own dev sysctl nodes, for example:
1104 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
1105 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
1106 own chardev in the form of "dsp%d.<function>%d", where <function>
1107 is p = playback, r = record and v = virtual, respectively. Users
1108 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
1109 This does not affect those who are using "/dev/dsp".
1112 geom(4)'s gmirror(8) class metadata structure has been
1113 rev'd from v3 to v4. If you update across this point and
1114 your metadata is converted for you, you will not be easily
1115 able to downgrade since the /boot/kernel.old/geom_mirror.ko
1116 kernel module will be unable to read the v4 metadata. You
1117 can resolve this by doing from the loader(8) prompt:
1119 set vfs.root.mountfrom="ufs:/dev/XXX"
1121 where XXX is the root slice of one of the disks that composed
1122 the mirror (i.e.: /dev/ad0s1a). You can then rebuild
1123 the array the same way you built it originally.
1126 The following binaries have been disconnected from the build:
1127 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
1128 and mount_std. The functionality of these programs has been
1129 moved into the mount program. For example, to mount a devfs
1130 filesystem, instead of using mount_devfs, use: "mount -t devfs".
1131 This does not affect entries in /etc/fstab, since entries in
1132 /etc/fstab are always processed with "mount -t fstype".
1135 Support for PCI Message Signalled Interrupts on i386 and amd64
1136 has been added to the kernel and various drivers will soon be
1137 updated to use MSI when it is available. If there are any problems,
1138 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
1139 and 'hw.pci.enable_msix' tunables to 0 in the loader.
1142 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
1143 The lockmgr object layout has been changed as a result of having
1144 a lock_object embedded in it. As a consequence all file system
1145 kernel modules must be re-compiled. The mutex profiling man page
1146 has not yet been updated to reflect this change.
1149 KSE in the kernel has now been made optional and turned on by
1150 default. Use 'nooption KSE' in your kernel config to turn it
1151 off. All kernel modules *must* be recompiled after this change.
1152 There-after, modules from a KSE kernel should be compatible with
1153 modules from a NOKSE kernel due to the temporary padding fields
1154 added to 'struct proc'.
1157 mrouted and its utilities have been removed from the base system.
1160 Some ioctl(2) command codes have changed. Full backward ABI
1161 compatibility is provided if the "options COMPAT_FREEBSD6" is
1162 present in the kernel configuration file. Make sure to add
1163 this option to your kernel config file, or recompile X.Org
1164 and the rest of ports; otherwise they may refuse to work.
1167 tcpslice has been removed from the base system.
1170 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
1171 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
1172 systat needs to be rebuilt.
1175 libpcap updated to v0.9.4 and tcpdump to v3.9.4
1178 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
1179 for IPFIREWALL_FORWARD is now as it was before when it was first
1180 committed and for years after. The behaviour is now ON.
1183 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
1184 Now it can decrypt files created from different architectures.
1185 Unfortunately, it is no longer able to decrypt a cipher text
1186 generated with an older version on 64 bit architectures.
1187 If you have such a file, you need old utility to decrypt it.
1190 The interface version of the i4b kernel part has changed. So
1191 after updating the kernel sources and compiling a new kernel,
1192 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
1193 be rebuilt, and vice versa.
1196 The XBOX kernel now defaults to the nfe(4) driver instead of
1197 the nve(4) driver. Please update your configuration
1201 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
1202 PCnet family of NICs has been removed. The new le(4) driver serves
1203 as an equivalent but cross-platform replacement with the pcn(4)
1204 driver still providing performance-optimized support for the subset
1205 of AMD Am79C971 PCnet-FAST and greater chips as before.
1208 The machdep.* sysctls and the adjkerntz utility have been
1209 modified a bit. The new adjkerntz utility uses the new
1210 sysctl names and sysctlbyname() calls, so it may be impossible
1211 to run an old /sbin/adjkerntz utility in single-user mode
1212 with a new kernel. Replace the `adjkerntz -i' step before
1213 `make installworld' with:
1215 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
1217 and proceed as usual with the rest of the installworld-stage
1218 steps. Otherwise, you risk installing binaries with their
1219 timestamp set several hours in the future, especially if
1220 you are running with local time set to GMT+X hours.
1223 The ip6fw utility has been removed. The behavior provided by
1224 ip6fw has been in ipfw2 for a good while and the rc.d scripts
1225 have been updated to deal with it. There are some rules that
1226 might not migrate cleanly. Use rc.firewall6 as a template to
1230 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
1231 attachments have been removed. Make sure to configure scc(4)
1232 on sparc64. Note also that by default puc(4) will use uart(4)
1233 and not sio(4) for serial ports because interrupt handling has
1234 been optimized for multi-port serial cards and only uart(4)
1235 implements the interface to support it.
1238 The scc(4) driver replaces puc(4) for Serial Communications
1239 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
1240 Z8530. On sparc64, it is advised to add scc(4) to the kernel
1241 configuration to make sure that the serial ports remain
1245 Most world/kernel related NO_* build options changed names.
1246 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
1247 after FreeBSD ports) and should be set in /etc/src.conf
1248 (the src.conf(5) manpage is provided). Full backwards
1249 compatibility is maintained for the time being though it's
1250 highly recommended to start moving old options out of the
1251 system-wide /etc/make.conf file into the new /etc/src.conf
1252 while also properly renaming them. More conversions will
1253 likely follow. Posting to current@:
1255 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
1258 The NETSMBCRYPTO kernel option has been retired because its
1259 functionality is always included in NETSMB and smbfs.ko now.
1262 The TDFX_LINUX kernel option was retired and replaced by the
1263 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
1264 kernel module. Loading it alone should suffice to get 3dfx support
1265 for Linux apps because it will pull in 3dfx.ko and linux.ko through
1269 The 'audit' group was added to support the new auditing functionality
1270 in the base system. Be sure to follow the directions for updating,
1271 including the requirement to run mergemaster -p.
1274 The kernel ABI to file system modules was changed on i386.
1275 Please make sure that your kernel and modules are in sync.
1278 This actually occured some time ago, but installing the kernel
1279 now also installs a bunch of symbol files for the kernel modules.
1280 This increases the size of /boot/kernel to about 67Mbytes. You
1281 will need twice this if you will eventually back this up to kernel.old
1282 on your next install.
1283 If you have a shortage of room in your root partition, you should add
1284 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
1285 to your /etc/make.conf.
1288 libc's malloc implementation has been replaced. This change has the
1289 potential to uncover application bugs that previously went unnoticed.
1290 See the malloc(3) manual page for more details.
1293 The generic netgraph(4) cookie has been changed. If you upgrade
1294 kernel passing this point, you also need to upgrade userland
1295 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
1298 si(4)'s device files now contain the unit number.
1299 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
1302 The kernel ABI was mostly destroyed due to a change in the size
1303 of struct lock_object which is nested in other structures such
1304 as mutexes which are nested in all sorts of other structures.
1305 Make sure your kernel and modules are in sync.
1308 The page coloring algorithm in the VM subsystem was converted
1309 from tuning with kernel options to autotuning. Please remove
1310 any PQ_* option except PQ_NOOPT from your kernel config.
1313 The net80211-related tools in the tools/tools/ath directory
1314 have been moved to tools/tools/net80211 and renamed with a
1315 "wlan" prefix. Scripts that use them should be adjusted
1319 Scripts in the local_startup directories (as defined in
1320 /etc/defaults/rc.conf) that have the new rc.d semantics will
1321 now be run as part of the base system rcorder. If there are
1322 errors or problems with one of these local scripts, it could
1323 cause boot problems. If you encounter such problems, boot in
1324 single user mode, remove that script from the */rc.d directory.
1325 Please report the problem to the port's maintainer, and the
1326 freebsd-ports@freebsd.org mailing list.
1329 The nodev mount option was deprecated in RELENG_6 (where it
1330 was a no-op), and is now unsupported. If you have nodev or dev listed
1331 in /etc/fstab, remove it, otherwise it will result in a mount error.
1334 ABI between ipfw(4) and ipfw(8) has been changed. You need
1335 to rebuild ipfw(8) when rebuilding kernel.
1338 rp(4)'s device files now contain the unit number.
1339 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
1342 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
1343 Its /etc/rc.conf.d configuration file has been `ppp' from
1344 the beginning, and hence there is no need to touch it.
1347 Now most modules get their build-time options from the kernel
1348 configuration file. A few modules still have fixed options
1349 due to their non-conformant implementation, but they will be
1350 corrected eventually. You may need to review the options of
1351 the modules in use, explicitly specify the non-default options
1352 in the kernel configuration file, and rebuild the kernel and
1356 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
1357 to turn polling(4) on your interfaces.
1360 The old bridge(4) implementation was retired. The new
1361 if_bridge(4) serves as a full functional replacement.
1364 The ai_addrlen of a struct addrinfo was changed to a socklen_t
1365 to conform to POSIX-2001. This change broke an ABI
1366 compatibility on 64 bit architecture. You have to recompile
1367 userland programs that use getaddrinfo(3) on 64 bit
1371 RELENG_6 branched here.
1374 The pccard_ifconfig rc.conf variable has been removed and a new
1375 variable, ifconfig_DEFAULT has been introduced. Unlike
1376 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
1377 do not have ifconfig_ifn entries rather than just those in
1378 removable_interfaces.
1381 Some previous versions of PAM have permitted the use of
1382 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
1383 to third party PAM modules in /usr/local/lib. A change has been
1384 made to require the use of absolute paths in order to avoid
1385 ambiguity and dependence on library path configuration, which may
1386 affect existing configurations.
1389 Major changes to network interface API. All drivers must be
1390 recompiled. Drivers not in the base system will need to be
1391 updated to the new APIs.
1394 Changes were made to kinfo_proc in sys/user.h. Please recompile
1395 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
1396 will not behave correctly.
1398 The API and ABI for hwpmc(4) have changed with the addition
1399 of sampling support. Please recompile lib/libpmc(3) and
1400 usr.sbin/{pmcstat,pmccontrol}.
1403 The OpenBSD dhclient was imported in place of the ISC dhclient
1404 and the network interface configuration scripts were updated
1405 accordingly. If you use DHCP to configure your interfaces, you
1406 must now run devd. Also, DNS updating was lost so you will need
1407 to find a workaround if you use this feature.
1409 The '_dhcp' user was added to support the OpenBSD dhclient. Be
1410 sure to run mergemaster -p (like you are supposed to do every time
1414 if_bridge was added to the tree. This has changed struct ifnet.
1415 Please recompile userland and all network related modules.
1418 The n_net of a struct netent was changed to an uint32_t, and
1419 1st argument of getnetbyaddr() was changed to an uint32_t, to
1420 conform to POSIX-2001. These changes broke an ABI
1421 compatibility on 64 bit architecture. With these changes,
1422 shlib major of libpcap was bumped. You have to recompile
1423 userland programs that use getnetbyaddr(3), getnetbyname(3),
1424 getnetent(3) and/or libpcap on 64 bit architecture.
1427 Kernel parsing of extra options on '#!' first lines of shell
1428 scripts has changed. Lines with multiple options likely will
1429 fail after this date. For full details, please see
1430 http://people.freebsd.org/~gad/Updating-20050528.txt
1433 The packet filter (pf) code has been updated to OpenBSD 3.7
1434 Please note the changed anchor syntax and the fact that
1435 authpf(8) now needs a mounted fdescfs(5) to function.
1438 The NO_MIXED_MODE kernel option has been removed from the i386
1439 amd64 platforms as its use has been superceded by the new local
1440 APIC timer code. Any kernel config files containing this option
1444 The on-disk format of LC_CTYPE files was changed to be machine
1445 independent. Please make sure NOT to use NO_CLEAN buildworld
1446 when crossing this point. Crossing this point also requires
1447 recompile or reinstall of all locale depended packages.
1450 The ifi_epoch member of struct if_data has been changed to
1451 contain the uptime at which the interface was created or the
1452 statistics zeroed rather then the wall clock time because
1453 wallclock time may go backwards. This should have no impact
1454 unless an snmp implementation is using this value (I know of
1455 none at this point.)
1458 The acpi_perf and acpi_throttle drivers are now part of the
1459 acpi(4) main module. They are no longer built separately.
1462 The layout of struct image_params has changed. You have to
1463 recompile all compatibility modules (linux, svr4, etc) for use
1464 with the new kernel.
1467 The p4tcc driver has been merged into cpufreq(4). This makes
1468 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
1469 compile in "device cpufreq" to restore this functionality.
1472 The responsibility of recomputing the file system summary of
1473 a SoftUpdates-enabled dirty volume has been transferred to the
1474 background fsck. A rebuild of fsck(8) utility is recommended
1475 if you have updated the kernel.
1477 To get the old behavior (recompute file system summary at mount
1478 time), you can set vfs.ffs.compute_summary_at_mount=1 before
1479 mounting the new volume.
1482 The cpufreq import is complete. As part of this, the sysctls for
1483 acpi(4) throttling have been removed. The power_profile script
1484 has been updated, so you can use performance/economy_cpu_freq in
1485 rc.conf(5) to set AC on/offline cpu frequencies.
1488 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
1489 requires recompiling libnetgraph and userland netgraph utilities.
1492 Support for abbreviated forms of a number of ipfw options is
1493 now deprecated. Warnings are printed to stderr indicating the
1494 correct full form when a match occurs. Some abbreviations may
1495 be supported at a later date based on user feedback. To be
1496 considered for support, abbreviations must be in use prior to
1497 this commit and unlikely to be confused with current key words.
1500 By a popular demand, a lot of NOFOO options were renamed
1501 to NO_FOO (see bsd.compat.mk for a full list). The old
1502 spellings are still supported, but will cause annoying
1503 warnings on stderr. Make sure you upgrade properly (see
1504 the COMMON ITEMS: section later in this file).
1507 Auto-loading of ancillary wlan modules such as wlan_wep has
1508 been temporarily disabled; you need to statically configure
1509 the modules you need into your kernel or explicitly load them
1510 prior to use. Specifically, if you intend to use WEP encryption
1511 with an 802.11 device load/configure wlan_wep; if you want to
1512 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
1513 and wlan_xauth as required.
1516 The behaviour of ppp(8) has changed slightly. If lqr is enabled
1517 (``enable lqr''), older versions would revert to LCP ECHO mode on
1518 negotiation failure. Now, ``enable echo'' is required for this
1519 behaviour. The ppp version number has been bumped to 3.4.2 to
1523 The wlan support has been updated to split the crypto support
1524 into separate modules. For static WEP you must configure the
1525 wlan_wep module in your system or build and install the module
1526 in place where it can be loaded (the kernel will auto-load
1527 the module when a wep key is configured).
1530 The ath driver has been updated to split the tx rate control
1531 algorithm into a separate module. You need to include either
1532 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
1535 Support for systems with an 80386 CPU has been removed. Please
1536 use FreeBSD 5.x or earlier on systems with an 80386.
1539 We have had a hack which would mount the root filesystem
1540 R/W if the device were named 'md*'. As part of the vnode
1541 work I'm doing I have had to remove this hack. People
1542 building systems which use preloaded MD root filesystems
1543 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
1544 their /etc/rc scripts.
1547 FreeBSD 5.3 shipped here.
1550 The size of struct tcpcb has changed again due to the removal
1551 of RFC1644 T/TCP. You have to recompile userland programs that
1552 read kmem for tcp sockets directly (netstat, sockstat, etc.)
1555 The size of struct tcpcb has changed. You have to recompile
1556 userland programs that read kmem for tcp sockets directly
1557 (netstat, sockstat, etc.)
1560 RELENG_5 branched here. For older entries, please see updating
1561 in the RELENG_5 branch.
1567 Avoid using make -j when upgrading. From time to time in the
1568 past there have been problems using -j with buildworld and/or
1569 installworld. This is especially true when upgrading between
1570 "distant" versions (eg one that cross a major release boundary
1571 or several minor releases, or when several months have passed
1572 on the -current branch).
1574 Sometimes, obscure build problems are the result of environment
1575 poisoning. This can happen because the make utility reads its
1576 environment when searching for values for global variables.
1577 To run your build attempts in an "environmental clean room",
1578 prefix all make commands with 'env -i '. See the env(1) manual
1579 page for more details.
1581 When upgrading from one major version to another it is generally
1582 best to upgrade to the latest code in the currently installed branch
1583 first, then do an upgrade to the new branch. This is the best-tested
1584 upgrade path, and has the highest probability of being successful.
1585 Please try this approach before reporting problems with a major
1590 If you are updating from a prior version of FreeBSD (even one just
1591 a few days old), you should follow this procedure. It is the most
1592 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
1594 make kernel-toolchain
1595 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
1596 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
1598 To test a kernel once
1599 ---------------------
1600 If you just want to boot a kernel once (because you are not sure
1601 if it works, or if you want to boot a known bad kernel to provide
1602 debugging information) run
1603 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
1604 nextboot -k testkernel
1606 To just build a kernel when you know that it won't mess you up
1607 --------------------------------------------------------------
1608 This assumes you are already running a 5.X system. Replace
1609 ${arch} with the architecture of your machine (e.g. "i386",
1610 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
1612 cd src/sys/${arch}/conf
1613 config KERNEL_NAME_HERE
1614 cd ../compile/KERNEL_NAME_HERE
1619 If this fails, go to the "To build a kernel" section.
1621 To rebuild everything and install it on the current system.
1622 -----------------------------------------------------------
1623 # Note: sometimes if you are running current you gotta do more than
1624 # is listed here if you are upgrading from a really old current.
1626 <make sure you have good level 0 dumps>
1628 make kernel KERNCONF=YOUR_KERNEL_HERE
1630 <reboot in single user> [3]
1638 To cross-install current onto a separate partition
1639 --------------------------------------------------
1640 # In this approach we use a separate partition to hold
1641 # current's root, 'usr', and 'var' directories. A partition
1642 # holding "/", "/usr" and "/var" should be about 2GB in
1645 <make sure you have good level 0 dumps>
1648 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1649 <maybe newfs current's root partition>
1650 <mount current's root partition on directory ${CURRENT_ROOT}>
1651 make installworld DESTDIR=${CURRENT_ROOT}
1652 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1653 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1654 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
1655 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1656 <reboot into current>
1657 <do a "native" rebuild/install as described in the previous section>
1658 <maybe install compatibility libraries from ports/misc/compat*>
1662 To upgrade in-place from 5.x-stable to current
1663 ----------------------------------------------
1664 <make sure you have good level 0 dumps>
1666 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
1668 <reboot in single user> [3]
1675 Make sure that you've read the UPDATING file to understand the
1676 tweaks to various things you need. At this point in the life
1677 cycle of current, things change often and you are on your own
1678 to cope. The defaults can also change, so please read ALL of
1679 the UPDATING entries.
1681 Also, if you are tracking -current, you must be subscribed to
1682 freebsd-current@freebsd.org. Make sure that before you update
1683 your sources that you have read and understood all the recent
1684 messages there. If in doubt, please track -stable which has
1685 much fewer pitfalls.
1687 [1] If you have third party modules, such as vmware, you
1688 should disable them at this point so they don't crash your
1691 [3] From the bootblocks, boot -s, and then do
1696 adjkerntz -i # if CMOS is wall time
1697 Also, when doing a major release upgrade, it is required that
1698 you boot into single user mode to do the installworld.
1700 [4] Note: This step is non-optional. Failure to do this step
1701 can result in a significant reduction in the functionality of the
1702 system. Attempting to do it by hand is not recommended and those
1703 that pursue this avenue should read this file carefully, as well
1704 as the archives of freebsd-current and freebsd-hackers mailing lists
1705 for potential gotchas.
1707 [5] Usually this step is a noop. However, from time to time
1708 you may need to do this if you get unknown user in the following
1709 step. It never hurts to do it all the time. You may need to
1710 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1711 install) after the buildworld before this step if you last updated
1712 from current before 20020224 or from -stable before 20020408.
1714 [8] In order to have a kernel that can run the 4.x binaries
1715 needed to do an installworld, you must include the COMPAT_FREEBSD4
1716 option in your kernel. Failure to do so may leave you with a system
1717 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
1718 is required to run the 5.x binaries on more recent kernels.
1720 Make sure that you merge any new devices from GENERIC since the
1721 last time you updated your kernel config file.
1723 [9] When checking out sources, you must include the -P flag to have
1724 cvs prune empty directories.
1726 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1727 "?=" instead of the "=" assignment operator, so that buildworld can
1728 override the CPUTYPE if it needs to.
1730 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1731 not on the command line, or in /etc/make.conf. buildworld will
1732 warn if it is improperly defined.
1735 This file contains a list, in reverse chronological order, of major
1736 breakages in tracking -current. Not all things will be listed here,
1737 and it only starts on October 16, 2004. Updating files can found in
1738 previous releases if your system is older than this.
1740 Copyright information:
1742 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
1744 Redistribution, publication, translation and use, with or without
1745 modification, in full or in part, in any form or format of this
1746 document are permitted without further permission from the author.
1748 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1749 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1750 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1751 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1752 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1753 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1754 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1755 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1756 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1757 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1758 POSSIBILITY OF SUCH DAMAGE.
1760 If you find this document useful, and you want to, you may buy the
1763 Contact Warner Losh if you have any questions about your use of