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: p3 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: p2 FreeBSD-SA-11:02.bind
24 Fix BIND remote DoS with large RRSIG RRsets and negative
27 20110420: p1 FreeBSD-SA-11:01.mountd
28 Fix CIDR parsing bug in mountd ACLs.
34 New version of minidump format for amd64 architecture was
35 introduced in r215872. To analyze vmcore files produced by
36 kernels at or after this version you will need updated userland,
37 libkvm actually, that is able to handle the new version.
40 A workaround for a fixed ld bug has been removed in kernel code,
41 so make sure that your system ld is built from sources after
42 revision 211583 from 2010-08-21 (r210245 from 2010-07-19 if
43 building stable/8 kernel on head, r211584 from 2010-08-21 for
44 stable/7). A symptom of incorrect ld version is
45 different addresses for set_pcpu section and __start_set_pcpu
46 symbol in kernel and/or modules.
49 A new version of ZFS (version 15) has been merged.
50 This version uses a python library for the following subcommands:
51 zfs allow, zfs unallow, zfs groupspace, zfs userspace.
52 For full functionality of these commands the following port must
53 be installed: sysutils/py-zfs
59 The config(8) command has been updated to maintain compatibility
60 with config files from 8.0-RELEASE. You will need a new version
61 of config to build kernels (this version can be used from 8.0-RELEASE
62 forward). The buildworld target will generate it, so following
63 the instructions in this file for updating will work glitch-free.
64 Merely doing a make buildkernel without first doing a make buildworld
65 (or kernel-toolchain), or attempting to build a kernel using
66 traidtional methods will generate a config version warning, indicating
70 The rc.firewall and rc.firewall6 were unified, and
71 rc.firewall6 and rc.d/ip6fw were removed.
72 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc
73 variables are obsoleted. Instead, the following new rc
74 variables are added to rc.d/ipfw:
76 firewall_client_net_ipv6, firewall_simple_iif_ipv6,
77 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6,
78 firewall_simple_onet_ipv6
80 The meanings correspond to the relevant IPv4 variables.
83 COMPAT_IA32 has been added as an alias for COMPAT_FREEBSD32. A new
84 version of config(8) is required. The error message when you hit this
85 condition is confusing (COMPAT_FREEBSD32 duplicate option), when it
86 should really say "your config is too old to compile this new kernel."
89 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32
90 to allow 32-bit compatibility on non-x86 platforms. All kernel
91 configurations on amd64 and ia64 platforms using these options must
92 be modified accordingly.
95 Introduce the kernel thread "deadlock resolver" (which can be enabled
96 via the DEADLKRES option, see NOTES for more details) and the
97 sleepq_type() function for sleepqueues.
103 802.11s D3.03 support was committed. This is incompatible with
104 the previous code, which was based on D3.0.
107 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
108 mount(8) and -a option for df(1) to see them.
111 Remove the option STOP_NMI. The default action is now to use NMI
112 only for KDB via the newly introduced function stop_cpus_hard()
113 and maintain stop_cpus() to just use a normal IPI_STOP on ia32
120 Bump the shared library version numbers for all libraries that
121 do not use symbol versioning as part of the 8.0-RELEASE cycle.
122 Bump __FreeBSD_version to 800105.
125 Due to changes in the implementation of virtual network stack
126 support, all network-related kernel modules must be recompiled.
127 As this change breaks the ABI, bump __FreeBSD_version to 800104.
130 The TOE interface to the TCP syncache has been modified to remove struct
131 tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. The
132 cxgb driver is the only TOE consumer affected by this change, and needs
133 to be recompiled along with the kernel. As this change breaks the ABI,
134 bump __FreeBSD_version to 800103.
137 Padding has been added to struct tcpcb, sackhint and tcpstat in
138 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
139 maintainig the ABI. However, this change breaks the ABI, so bump
140 __FreeBSD_version to 800102. User space tools that rely on the size of
141 any of these structs (e.g. sockstat) need to be recompiled.
144 The NFS_LEGACYRPC option has been removed along with the old
145 kernel RPC implementation that this option selected. Kernel
146 configurations may need to be adjusted.
149 The network interface device nodes at /dev/net/<interface> have
150 been removed. All ioctl operations can be performed the normal
151 way using routing sockets. The kqueue functionality can
152 generally be replaced with routing sockets.
155 The documentation from the FreeBSD Documentation Project
156 (Handbook, FAQ, etc.) is now installed via packages by
157 sysinstall(8) and under the /usr/local/share/doc/freebsd
158 directory instead of /usr/share/doc.
161 The ABI of various structures related to the SYSV IPC API have
162 been changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43
163 kernel options now all require COMPAT_FREEBSD7.
164 Bump __FreeBSD_version to 800100.
167 Layout of struct vnet has changed as routing related variables
168 were moved to their own Vimage module. Modules need to be
169 recompiled. Bump __FreeBSD_version to 800099.
172 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023
173 and 1024 respectively. As long as no more than 16 groups per
174 process are used, no changes should be visible. When more
175 than 16 groups are used, old binaries may fail if they call
176 getgroups() or getgrouplist() with statically sized storage.
177 Recompiling will work around this, but applications should be
178 modified to use dynamically allocated storage for group arrays
179 as POSIX.1-2008 does not cap an implementation's number of
180 supported groups at NGROUPS_MAX+1 as previous versions did.
182 NFS and portalfs mounts may also be affected as the list of
183 groups is truncated to 16. Users of NFS who use more than 16
184 groups, should take care that negative group permissions are not
185 used on the exported file systems as they will not be reliable
186 unless a GSSAPI based authentication method is used.
189 The compiling option ADAPTIVE_LOCKMGRS has been introduced.
190 This option compiles in the support for adaptive spinning for lockmgrs
191 which want to enable it. The lockinit() function now accepts the
192 flag LK_ADAPTIVE in order to make the lock object subject to
193 adaptive spinning when both held in write and read mode.
196 The layout of the structure returned by IEEE80211_IOC_STA_INFO
197 has changed. User applications that use this ioctl need to be
201 The layout of struct thread has changed. Kernel and modules
205 The layout of structs ifnet, domain, protosw and vnet_net has
206 changed. Kernel modules need to be rebuilt.
207 Bump __FreeBSD_version to 800097.
210 window(1) has been removed from the base system. It can now be
211 installed from ports. The port is called misc/window.
214 The way we are storing and accessing `routing table' entries
215 has changed. Programs reading the FIB, like netstat, need to
219 A new netisr implementation has been added for FreeBSD 8. Network
220 file system modules, such as igmp, ipdivert, and others, should be
222 Bump __FreeBSD_version to 800096.
225 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose
229 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
230 Bump __FreeBSD_version to 800094.
233 Add mnt_xflag field to 'struct mount'. File system modules
235 Bump __FreeBSD_version to 800093.
238 The compiling option ADAPTIVE_SX has been retired while it has been
239 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
240 The KPI for sx_init_flags() changes as accepting flags:
241 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag
242 has been introduced in order to handle the reversed logic.
243 Bump __FreeBSD_version to 800092.
246 Add support for hierarchical jails. Remove global securelevel.
247 Bump __FreeBSD_version to 800091.
250 The layout of struct vnet_net has changed, therefore modules
252 Bump __FreeBSD_version to 800090.
255 The newly imported zic(8) produces a new format in the
256 output. Please run tzsetup(8) to install the newly created
257 data to /etc/localtime.
260 The sysctl tree for the usb stack has renamed from hw.usb2.* to
261 hw.usb.* and is now consistent again with previous releases.
264 802.11 monitor mode support was revised and driver api's
265 were changed. Drivers dependent on net80211 now support
266 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No
267 user-visible data structures were changed but applications
268 that use DLT_IEEE802_11 may require changes.
269 Bump __FreeBSD_version to 800088.
272 The layout of the following structs has changed: sysctl_oid,
273 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
274 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
275 panics may be experienced. World rebuild is required for
276 correctly checking networking state from userland.
277 Bump __FreeBSD_version to 800085.
280 MLDv2 and Source-Specific Multicast (SSM) have been merged
281 to the IPv6 stack. VIMAGE hooks are in but not yet used.
282 The implementation of SSM within FreeBSD's IPv6 stack closely
283 follows the IPv4 implementation.
285 For kernel developers:
287 * The most important changes are that the ip6_output() and
288 ip6_input() paths no longer take the IN6_MULTI_LOCK,
289 and this lock has been downgraded to a non-recursive mutex.
291 * As with the changes to the IPv4 stack to support SSM, filtering
292 of inbound multicast traffic must now be performed by transport
293 protocols within the IPv6 stack. This does not apply to TCP and
294 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
296 * The KPIs used by IPv6 multicast are similar to those used by
297 the IPv4 stack, with the following differences:
298 * im6o_mc_filter() is analogous to imo_multicast_filter().
299 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
300 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
301 * IN6_LOOKUP_MULTI() has been deprecated and removed.
302 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
303 for MLDv1 have an additional 'timer' argument which is used to
304 jitter the initial membership report for the solicited-node
305 multicast membership on-link.
306 * This is not strictly needed for MLDv2, which already jitters
307 its report transmissions. However, the 'timer' argument is
308 preserved in case MLDv1 is active on the interface.
310 * The KAME linked-list based IPv6 membership implementation has
311 been refactored to use a vector similar to that used by the IPv4
313 Code which maintains a list of its own multicast memberships
314 internally, e.g. carp, has been updated to reflect the new
317 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
318 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
319 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
320 implementation constraint which needs to be addressed in HEAD.
322 For application developers:
324 * The changes are broadly similar to those made for the IPv4
327 * The use of IPv4 and IPv6 multicast socket options on the same
328 socket, using mapped addresses, HAS NOT been tested or supported.
330 * There are a number of issues with the implementation of various
331 IPv6 multicast APIs which need to be resolved in the API surface
332 before the implementation is fully compatible with KAME userland
333 use, and these are mostly to do with interface index treatment.
335 * The literature available discusses the use of either the delta / ASM
336 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
337 using setsourcefilter(3)/getsourcefilter(3). For more information
338 please refer to RFC 3768, 'Socket Interface Extensions for
339 Multicast Source Filters'.
341 * Applications which use the published RFC 3678 APIs should be fine.
343 For systems administrators:
345 * The mtest(8) utility has been refactored to support IPv6, in
346 addition to IPv4. Interface addresses are no longer accepted
347 as arguments, their names must be used instead. The utility
348 will map the interface name to its first IPv4 address as
349 returned by getifaddrs(3).
351 * The ifmcstat(8) utility has also been updated to print the MLDv2
352 endpoint state and source filter lists via sysctl(3).
354 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
355 loopback of IPv6 multicast datagrams by default; it defaults to 1
356 to preserve the existing behaviour. Disabling multicast loopback is
357 recommended for optimal system performance.
359 * The IPv6 MROUTING code has been changed to examine this sysctl
360 instead of attempting to perform a group lookup before looping
361 back forwarded datagrams.
363 Bump __FreeBSD_version to 800084.
366 Implement low-level Bluetooth HCI API.
367 Bump __FreeBSD_version to 800083.
370 The layout of struct malloc_type, used by modules to register new
371 memory allocation types, has changed. Most modules will need to
372 be rebuilt or panics may be experienced.
373 Bump __FreeBSD_version to 800081.
376 Anticipate overflowing inp_flags - add inp_flags2.
377 This changes most offsets in inpcb, so checking v4 connection
378 state will require a world rebuild.
379 Bump __FreeBSD_version to 800080.
382 Add an llentry to struct route and struct route_in6. Modules
383 embedding a struct route will need to be recompiled.
384 Bump __FreeBSD_version to 800079.
387 The size of rt_metrics_lite and by extension rtentry has changed.
388 Networking administration apps will need to be recompiled.
389 The route command now supports show as an alias for get, weighting
390 of routes, sticky and nostick flags to alter the behavior of stateful
392 Bump __FreeBSD_version to 800078.
395 Do not use Giant for kbdmux(4) locking. This is wrong and
396 apparently causing more problems than it solves. This will
397 re-open the issue where interrupt handlers may race with
398 kbdmux(4) in polling mode. Typical symptoms include (but
399 not limited to) duplicated and/or missing characters when
400 low level console functions (such as gets) are used while
401 interrupts are enabled (for example geli password prompt,
402 mountroot prompt etc.). Disabling kbdmux(4) may help.
405 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
406 kernel modules referencing any of the above need to be recompiled.
407 Bump __FreeBSD_version to 800075.
410 GEOM_PART has become the default partition slicer for storage devices,
411 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
412 introduces some changes:
414 MSDOS/EBR: the devices created from MSDOS extended partition entries
415 (EBR) can be named differently than with GEOM_MBR and are now symlinks
416 to devices with offset-based names. fstabs may need to be modified.
418 BSD: the "geometry does not match label" warning is harmless in most
419 cases but it points to problems in file system misalignment with
420 disk geometry. The "c" partition is now implicit, covers the whole
421 top-level drive and cannot be (mis)used by users.
423 General: Kernel dumps are now not allowed to be written to devices
424 whose partition types indicate they are meant to be used for file
425 systems (or, in case of MSDOS partitions, as something else than
428 Most of these changes date approximately from 200812.
431 The uscanner(4) driver has been removed from the kernel. This follows
432 Linux removing theirs in 2.6 and making libusb the default interface
436 The multicast forwarding code has been cleaned up. netstat(1)
437 only relies on KVM now for printing bandwidth upcall meters.
438 The IPv4 and IPv6 modules are split into ip_mroute_mod and
439 ip6_mroute_mod respectively. The config(5) options for statically
440 compiling this code remain the same, i.e. 'options MROUTING'.
443 Support for the IFF_NEEDSGIANT network interface flag has been
444 removed, which means that non-MPSAFE network device drivers are no
445 longer supported. In particular, if_ar, if_sr, and network device
446 drivers from the old (legacy) USB stack can no longer be built or
450 POSIX.1 Native Language Support (NLS) has been enabled in libc and
451 a bunch of new language catalog files have also been added.
452 This means that some common libc messages are now localized and
453 they depend on the LC_MESSAGES environmental variable.
456 The k8temp(4) driver has been renamed to amdtemp(4) since
457 support for K10 and K11 CPU families was added.
460 IGMPv3 and Source-Specific Multicast (SSM) have been merged
461 to the IPv4 stack. VIMAGE hooks are in but not yet used.
463 For kernel developers, the most important changes are that the
464 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
465 and this lock has been downgraded to a non-recursive mutex.
467 Transport protocols (UDP, Raw IP) are now responsible for filtering
468 inbound multicast traffic according to group membership and source
469 filters. The imo_multicast_filter() KPI exists for this purpose.
470 Transports which do not use multicast (SCTP, TCP) already reject
471 multicast by default. Forwarding and receive performance may improve
472 as a mutex acquisition is no longer needed in the ip_input()
473 low-level input path. in_addmulti() and in_delmulti() are shimmed
474 to new KPIs which exist to support SSM in-kernel.
476 For application developers, it is recommended that loopback of
477 multicast datagrams be disabled for best performance, as this
478 will still cause the lock to be taken for each looped-back
479 datagram transmission. The net.inet.ip.mcast.loop sysctl may
480 be tuned to 0 to disable loopback by default; it defaults to 1
481 to preserve the existing behaviour.
483 For systems administrators, to obtain best performance with
484 multicast reception and multiple groups, it is always recommended
485 that a card with a suitably precise hash filter is used. Hash
486 collisions will still result in the lock being taken within the
487 transport protocol input path to check group membership.
489 If deploying FreeBSD in an environment with IGMP snooping switches,
490 it is recommended that the net.inet.igmp.sendlocal sysctl remain
491 enabled; this forces 224.0.0.0/24 group membership to be announced
494 The size of 'struct igmpstat' has changed; netstat needs to be
495 recompiled to reflect this.
496 Bump __FreeBSD_version to 800070.
499 libusb20.so.1 is now installed as libusb.so.1 and the ports system
500 updated to use it. This requires a buildworld/installworld in order to
501 update the library and dependencies (usbconfig, etc). Its advisable to
502 rebuild all ports which uses libusb. More specific directions are given
503 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
504 libusb are no longer required and can be removed.
507 A workaround is committed to allow the creation of System V shared
508 memory segment of size > 2 GB on the 64-bit architectures.
509 Due to a limitation of the existing ABI, the shm_segsz member
510 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
511 wrong for large segments. Note that limits must be explicitly
512 raised to allow such segments to be created.
515 The layout of struct ifnet has changed, requiring a rebuild of all
516 network device driver modules.
519 The /dev handling for the new USB stack has changed, a
520 buildworld/installworld is required for libusb20.
523 The new USB2 stack has now been permanently moved in and all kernel and
524 module names reverted to their previous values (eg, usb, ehci, ohci,
525 ums, ...). The old usb stack can be compiled in by prefixing the name
526 with the letter 'o', the old usb modules have been removed.
527 Updating entry 20090216 for xorg and 20090215 for libmap may still
531 The rc.conf(5) option if_up_delay has been renamed to
532 defaultroute_delay to better reflect its purpose. If you have
533 customized this setting in /etc/rc.conf you need to update it to
537 xorg 7.4 wants to configure its input devices via hald which does not
538 yet work with USB2. If the keyboard/mouse does not work in xorg then
540 Option "AllowEmptyInput" "off"
541 to your ServerLayout section. This will cause X to use the configured
542 kbd and mouse sections from your xorg.conf.
545 The GENERIC kernels for all architectures now default to the new USB2
546 stack. No kernel config options or code have been removed so if a
547 problem arises please report it and optionally revert to the old USB
548 stack. If you are loading USB kernel modules or have a custom kernel
549 that includes GENERIC then ensure that usb names are also changed over,
550 eg uftdi -> usb2_serial_ftdi.
552 Older programs linked against the ports libusb 0.1 need to be
553 redirected to the new stack's libusb20. /etc/libmap.conf can
555 # Map old usb library to new one for usb2 stack
556 libusb-0.1.so.8 libusb20.so.1
559 All USB ethernet devices now attach as interfaces under the name ueN
560 (eg. ue0). This is to provide a predictable name as vendors often
561 change usb chipsets in a product without notice.
564 The ichsmb(4) driver has been changed to require SMBus slave
565 addresses be left-justified (xxxxxxx0b) rather than right-justified.
566 All of the other SMBus controller drivers require left-justified
567 slave addresses, so this change makes all the drivers provide the
571 INET6 statistics (struct ip6stat) was updated.
572 netstat(1) needs to be recompiled.
575 NTFS has been removed from GENERIC kernel on amd64 to match
576 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
577 will load ntfs.ko module automatically when NTFS support is
578 actually needed, unless ntfs.ko is not installed or security
579 level prohibits loading kernel modules. If either is the case,
580 "options NTFS" has to be added into kernel config.
583 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
584 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
585 800061. User space tools that rely on the size of struct tcpcb in
586 tcp_var.h (e.g. sockstat) need to be recompiled.
589 ng_tty(4) module updated to match the new TTY subsystem.
590 Due to API change, user-level applications must be updated.
591 New API support added to mpd5 CVS and expected to be present
592 in next mpd5.3 release.
595 With __FreeBSD_version 800060 the makefs tool is part of
596 the base system (it was a port).
599 The afdata and ifnet locks have been changed from mutexes to
600 rwlocks, network modules will need to be re-compiled.
603 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
604 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
605 The new code reduced struct rtentry{} by 16 bytes on 32-bit
606 architecture and 40 bytes on 64-bit architecture. The userland
607 applications "arp" and "ndp" have been updated accordingly.
608 The output from "netstat -r" shows only routing entries and
609 none of the L2 information.
612 __FreeBSD_version 800057 marks the switchover from the
613 binary ath hal to source code. Users must add the line:
615 options AH_SUPPORT_AR5416
617 to their kernel config files when specifying:
621 The ath_hal module no longer exists; the code is now compiled
622 together with the driver in the ath module. It is now
623 possible to tailor chip support (i.e. reduce the set of chips
624 and thereby the code size); consult ath_hal(4) for details.
627 __FreeBSD_version 800054 adds memory barriers to
628 <machine/atomic.h>, new interfaces to ifnet to facilitate
629 multiple hardware transmit queues for cards that support
630 them, and a lock-less ring-buffer implementation to
631 enable drivers to more efficiently manage queueing of
635 A new version of ZFS (version 13) has been merged to -HEAD.
636 This version has zpool attribute "listsnapshots" off by
637 default, which means "zfs list" does not show snapshots,
638 and is the same as Solaris behavior.
641 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
644 The uhci, ohci, ehci and slhci USB Host controller drivers have
645 been put into separate modules. If you load the usb module
646 separately through loader.conf you will need to load the
647 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
648 controller add the following to loader.conf:
654 The ABI used by the PMC toolset has changed. Please keep
655 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
659 atapci kernel module now includes only generic PCI ATA
660 driver. AHCI driver moved to ataahci kernel module.
661 All vendor-specific code moved into separate kernel modules:
662 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
663 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
664 atamarvell, atamicron, atanational, atanetcell, atanvidia,
665 atapromise, ataserverworks, atasiliconimage, atasis, atavia
668 The TTY subsystem of the kernel has been replaced by a new
669 implementation, which provides better scalability and an
670 improved driver model. Most common drivers have been migrated to
671 the new TTY subsystem, while others have not. The following
672 drivers have not yet been ported to the new TTY layer:
675 cy, digi, rc, rp, sio
681 ng_h4, ng_tty, ppp, sl, snp
683 Adding these drivers to your kernel configuration file shall
684 cause compilation to fail.
687 ntpd has been upgraded to 4.2.4p5.
690 OpenSSH has been upgraded to 5.1p1.
692 For many years, FreeBSD's version of OpenSSH preferred DSA
693 over RSA for host and user authentication keys. With this
694 upgrade, we've switched to the vendor's default of RSA over
695 DSA. This may cause upgraded clients to warn about unknown
696 host keys even for previously known hosts. Users should
697 follow the usual procedure for verifying host keys before
698 accepting the RSA key.
700 This can be circumvented by setting the "HostKeyAlgorithms"
701 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
704 Please note that the sequence of keys offered for
705 authentication has been changed as well. You may want to
706 specify IdentityFile in a different order to revert this
710 The sio(4) driver has been removed from the i386 and amd64
711 kernel configuration files. This means uart(4) is now the
712 default serial port driver on those platforms as well.
714 To prevent collisions with the sio(4) driver, the uart(4) driver
715 uses different names for its device nodes. This means the
716 onboard serial port will now most likely be called "ttyu0"
717 instead of "ttyd0". You may need to reconfigure applications to
718 use the new device names.
720 When using the serial port as a boot console, be sure to update
721 /boot/device.hints and /etc/ttys before booting the new kernel.
722 If you forget to do so, you can still manually specify the hints
723 at the loader prompt:
725 set hint.uart.0.at="isa"
726 set hint.uart.0.port="0x3F8"
727 set hint.uart.0.flags="0x10"
728 set hint.uart.0.irq="4"
732 The gpt(8) utility has been removed. Use gpart(8) to partition
736 The version that Linuxulator emulates was changed from 2.4.2
737 to 2.6.16. If you experience any problems with Linux binaries
738 please try to set sysctl compat.linux.osrelease to 2.4.2 and
739 if it fixes the problem contact emulation mailing list.
742 ISDN4BSD (I4B) was removed from the src tree. You may need to
743 update a your kernel configuration and remove relevant entries.
746 I have checked in code to support multiple routing tables.
747 See the man pages setfib(1) and setfib(2).
748 This is a hopefully backwards compatible version,
749 but to make use of it you need to compile your kernel
750 with options ROUTETABLES=2 (or more up to 16).
753 The 802.11 wireless support was redone to enable multi-bss
754 operation on devices that are capable. The underlying device
755 is no longer used directly but instead wlanX devices are
756 cloned with ifconfig. This requires changes to rc.conf files.
758 ifconfig_ath0="WPA DHCP"
761 ifconfig_wlan0="WPA DHCP"
762 see rc.conf(5) for more details. In addition, mergemaster of
763 /etc/rc.d is highly recommended. Simultaneous update of userland
764 and kernel wouldn't hurt either.
766 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
767 modules were merged into the base wlan module. All references
768 to these modules (e.g. in kernel config files) must be removed.
771 psm(4) has gained write(2) support in native operation level.
772 Arbitrary commands can be written to /dev/psm%d and status can
773 be read back from it. Therefore, an application is responsible
774 for status validation and error recovery. It is a no-op in
775 other operation levels.
778 Support for KSE threading has been removed from the kernel. To
779 run legacy applications linked against KSE libmap.conf may
780 be used. The following libmap.conf may be used to ensure
781 compatibility with any prior release:
783 libpthread.so.1 libthr.so.1
784 libpthread.so.2 libthr.so.2
785 libkse.so.3 libthr.so.3
788 The layout of struct vmspace has changed. This affects libkvm
789 and any executables that link against libkvm and use the
790 kvm_getprocs() function. In particular, but not exclusively,
791 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
792 The effects are minimal, but it's advisable to upgrade world
796 The latest em driver no longer has support in it for the
797 82575 adapter, this is now moved to the igb driver. The
798 split was done to make new features that are incompatible
799 with older hardware easier to do.
802 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
803 likewise the kernel option is now GEOM_LINUX_LVM.
806 The default NFS mount mode has changed from UDP to TCP for
807 increased reliability. If you rely on (insecurely) NFS
808 mounting across a firewall you may need to update your
812 Belatedly note the addition of m_collapse for compacting
816 The fts(3) structures have been changed to use adequate
817 integer types for their members and so to be able to cope
818 with huge file trees. The old fts(3) ABI is preserved
819 through symbol versioning in libc, so third-party binaries
820 using fts(3) should still work, although they will not take
821 advantage of the extended types. At the same time, some
822 third-party software might fail to build after this change
823 due to unportable assumptions made in its source code about
824 fts(3) structure members. Such software should be fixed
825 by its vendor or, in the worst case, in the ports tree.
826 FreeBSD_version 800015 marks this change for the unlikely
827 case that a portable fix is impossible.
830 To upgrade to -current after this date, you must be running
831 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
832 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
835 The ADAPTIVE_GIANT kernel option has been retired because its
836 functionality is the default now.
839 The AT keyboard emulation of sunkbd(4) has been turned on
840 by default. In order to make the special symbols of the Sun
841 keyboards driven by sunkbd(4) work under X these now have
842 to be configured the same way as Sun USB keyboards driven
843 by ukbd(4) (which also does AT keyboard emulation), f.e.:
845 Option "XkbLayout" "us"
846 Option "XkbRules" "xorg"
847 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
850 It has been decided that it is desirable to provide ABI
851 backwards compatibility to the FreeBSD 4/5/6 versions of the
852 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
853 broken with the introduction of PCI domain support (see the
854 20070930 entry). Unfortunately, this required the ABI of
855 PCIOCGETCONF to be broken again in order to be able to
856 provide backwards compatibility to the old version of that
857 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
858 again. As for prominent ports this affects neither pciutils
859 nor xorg-server this time, the hal port needs to be rebuilt
863 The misnamed kthread_create() and friends have been renamed
864 to kproc_create() etc. Many of the callers already
866 I will return kthread_create() and friends in a while
867 with implementations that actually create threads, not procs.
868 Renaming corresponds with version 800002.
874 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
875 WITHOUT_LIBTHR are set.
878 The PCI code has been made aware of PCI domains. This means that
879 the location strings as used by pciconf(8) etc are now in the
880 following format: pci<domain>:<bus>:<device>[:<function>]. It
881 also means that consumers of <sys/pciio.h> potentially need to
882 be recompiled; this includes the hal and xorg-server ports.
885 The caching daemon (cached) was renamed to nscd. nscd.conf
886 configuration file should be used instead of cached.conf and
887 nscd_enable, nscd_pidfile and nscd_flags options should be used
888 instead of cached_enable, cached_pidfile and cached_flags in
892 The getfacl(1) utility now prints owning user and group name
893 instead of owning uid and gid in the three line comment header.
894 This is the same behavior as getfacl(1) on Solaris and Linux.
897 The new IPsec code is now compiled in using the IPSEC option. The
898 IPSEC option now requires "device crypto" be defined in your kernel
899 configuration. The FAST_IPSEC kernel option is now deprecated.
902 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
903 note the changed syntax - keep state is now on by default. Also
904 note the fact that ftp-proxy(8) has been changed from bottom up and
905 has been moved from libexec to usr/sbin. Changes in the ALTQ
906 handling also affect users of IPFW's ALTQ capabilities.
909 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
910 only IPsec supported by FreeBSD. The new IPsec stack
911 supports both IPv4 and IPv6. The kernel option will change
912 after the code changes have settled in. For now the kernel
913 option IPSEC is deprecated and FAST_IPSEC is the only option, that
914 will change after some settling time.
917 The wicontrol(8) utility has been removed from the base system. wi(4)
918 cards should be configured using ifconfig(8), see the man page for more
922 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
923 instead of the nve(4) driver. Please update your configuration
927 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
928 database if it is missing or older than the aliases file. If
929 desired, set the new rc.conf option sendmail_rebuild_aliases
930 to "YES" to restore that functionality.
933 The IPv4 multicast socket code has been considerably modified, and
934 moved to the file sys/netinet/in_mcast.c. Initial support for the
935 RFC 3678 Source-Specific Multicast Socket API has been added to
936 the IPv4 network stack.
938 Strict multicast and broadcast reception is now the default for
939 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
940 has now been removed.
942 The RFC 1724 hack for interface selection has been removed; the use
943 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
944 been added to replace it. Consumers such as routed will soon be
945 updated to reflect this.
947 These changes affect users who are running routed(8) or rdisc(8)
948 from the FreeBSD base system on point-to-point or unnumbered
952 The net80211 layer has changed significantly and all wireless
953 drivers that depend on it need to be recompiled. Further these
954 changes require that any program that interacts with the wireless
955 support in the kernel be recompiled; this includes: ifconfig,
956 wpa_supplicant, hostapd, and wlanstats. Users must also, for
957 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
958 if they use modules for wireless support. These modules implement
959 scanning support for station and ap modes, respectively. Failure
960 to load the appropriate module before marking a wireless interface
961 up will result in a message to the console and the device not
965 The pam_nologin(8) module ceases to provide an authentication
966 function and starts providing an account management function.
967 Consequent changes to /etc/pam.d should be brought in using
968 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
969 need manual editing as follows. Locate this line (or similar):
971 auth required pam_nologin.so no_warn
973 and change it according to this example:
975 account required pam_nologin.so no_warn
977 That is, the first word needs to be changed from "auth" to
978 "account". The new line can be moved to the account section
979 within the file for clarity. Not updating pam.conf(5) files
980 will result in nologin(5) ignored by the respective services.
983 The ether_ioctl() function has been synchronized with ioctl(2)
984 and ifnet.if_ioctl. Due to that, the size of one of its arguments
985 has changed on 64-bit architectures. All kernel modules using
986 ether_ioctl() need to be rebuilt on such architectures.
989 Improved INCLUDE_CONFIG_FILE support has been introduced to the
990 config(8) utility. In order to take advantage of this new
991 functionality, you are expected to recompile and install
992 src/usr.sbin/config. If you don't rebuild config(8), and your
993 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
994 build will be broken because of a missing "kernconfstring"
998 Symbol versioning is enabled by default. To disable it, use
999 option WITHOUT_SYMVER. It is not advisable to attempt to
1000 disable symbol versioning once it is enabled; your installworld
1001 will break because a symbol version-less libc will get installed
1002 before the install tools. As a result, the old install tools,
1003 which previously had symbol dependencies to FBSD_1.0, will fail
1004 because the freshly installed libc will not have them.
1006 The default threading library (providing "libpthread") has been
1007 changed to libthr. If you wish to have libkse as your default,
1008 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
1011 The ABI breakage in sendmail(8)'s libmilter has been repaired
1012 so it is no longer necessary to recompile mail filters (aka,
1013 milters). If you recompiled mail filters after the 20070408
1014 note, it is not necessary to recompile them again.
1017 The new trunk(4) driver has been renamed to lagg(4) as it better
1018 reflects its purpose. ifconfig will need to be recompiled.
1021 sendmail(8) has been updated to version 8.14.1. Mail filters
1022 (aka, milters) compiled against the libmilter included in the
1023 base operating system should be recompiled.
1026 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
1027 In order to use them one must agree to the respective LICENSE in
1028 share/doc/legal and define legal.intel_<name>.license_ack=1 via
1029 loader.conf(5) or kenv(1). Make sure to deinstall the now
1030 deprecated modules from the respective firmware ports.
1033 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
1034 were removed from FreeBSD's libc. These originally came from INRIA
1035 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
1036 deprecated in previous releases.
1037 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
1038 replace it as a more portable (and re-entrant) API.
1041 To support interrupt filtering a modification to the newbus API
1042 has occurred, ABI was broken and __FreeBSD_version was bumped
1043 to 700031. Please make sure that your kernel and modules are in
1044 sync. For more info:
1045 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
1048 The IPv6 multicast forwarding code may now be loaded into GENERIC
1049 kernels by loading the ip_mroute.ko module. This is built into the
1050 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
1051 set; see src.conf(5) for more information.
1054 The output of netstat -r has changed. Without -n, we now only
1055 print a "network name" without the prefix length if the network
1056 address and mask exactly match a Class A/B/C network, and an entry
1057 exists in the nsswitch "networks" map.
1058 With -n, we print the full unabbreviated CIDR network prefix in
1059 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
1060 This change is in preparation for changes such as equal-cost
1061 multipath, and to more generally assist operational deployment
1062 of FreeBSD as a modern IPv4 router.
1065 PIM has been turned on by default in the IPv4 multicast
1066 routing code. The kernel option 'PIM' has now been removed.
1067 PIM is now built by default if option 'MROUTING' is specified.
1068 It may now be loaded into GENERIC kernels by loading the
1069 ip_mroute.ko module.
1072 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
1073 has been removed. Its functionality may be achieved by explicitly
1074 configuring gif(4) interfaces and using the 'phyint' keyword in
1076 XORP does not support source-routed IPv4 multicast tunnels nor the
1077 integrated IPIP tunneling, therefore it is not affected by this
1078 change. The __FreeBSD_version macro has been bumped to 700030.
1081 Support for PCI Message Signalled Interrupts has been
1082 re-enabled in the bge driver, only for those chips which are
1083 believed to support it properly. If there are any problems,
1084 MSI can be disabled completely by setting the
1085 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
1089 Support for PCI Message Signalled Interrupts has been
1090 disabled again in the bge driver. Many revisions of the
1091 hardware fail to support it properly. Support can be
1092 re-enabled by removing the #define of BGE_DISABLE_MSI in
1093 "src/sys/dev/bge/if_bge.c".
1096 Support for PCI Message Signalled Interrupts has been added
1097 to the bge driver. If there are any problems, MSI can be
1098 disabled completely by setting the 'hw.pci.enable_msi' and
1099 'hw.pci.enable_msix' tunables to 0 in the loader.
1102 The removal of several facets of the experimental Threading
1103 system from the kernel means that the proc and thread structures
1104 have changed quite a bit. I suggest all kernel modules that might
1105 reference these structures be recompiled.. Especially the
1109 Sound infrastructure has been updated with various fixes and
1110 improvements. Most of the changes are pretty much transparent,
1111 with exceptions of followings:
1112 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
1113 moved to their own dev sysctl nodes, for example:
1114 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
1115 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
1116 own chardev in the form of "dsp%d.<function>%d", where <function>
1117 is p = playback, r = record and v = virtual, respectively. Users
1118 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
1119 This does not affect those who are using "/dev/dsp".
1122 geom(4)'s gmirror(8) class metadata structure has been
1123 rev'd from v3 to v4. If you update across this point and
1124 your metadata is converted for you, you will not be easily
1125 able to downgrade since the /boot/kernel.old/geom_mirror.ko
1126 kernel module will be unable to read the v4 metadata. You
1127 can resolve this by doing from the loader(8) prompt:
1129 set vfs.root.mountfrom="ufs:/dev/XXX"
1131 where XXX is the root slice of one of the disks that composed
1132 the mirror (i.e.: /dev/ad0s1a). You can then rebuild
1133 the array the same way you built it originally.
1136 The following binaries have been disconnected from the build:
1137 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
1138 and mount_std. The functionality of these programs has been
1139 moved into the mount program. For example, to mount a devfs
1140 filesystem, instead of using mount_devfs, use: "mount -t devfs".
1141 This does not affect entries in /etc/fstab, since entries in
1142 /etc/fstab are always processed with "mount -t fstype".
1145 Support for PCI Message Signalled Interrupts on i386 and amd64
1146 has been added to the kernel and various drivers will soon be
1147 updated to use MSI when it is available. If there are any problems,
1148 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
1149 and 'hw.pci.enable_msix' tunables to 0 in the loader.
1152 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
1153 The lockmgr object layout has been changed as a result of having
1154 a lock_object embedded in it. As a consequence all file system
1155 kernel modules must be re-compiled. The mutex profiling man page
1156 has not yet been updated to reflect this change.
1159 KSE in the kernel has now been made optional and turned on by
1160 default. Use 'nooption KSE' in your kernel config to turn it
1161 off. All kernel modules *must* be recompiled after this change.
1162 There-after, modules from a KSE kernel should be compatible with
1163 modules from a NOKSE kernel due to the temporary padding fields
1164 added to 'struct proc'.
1167 mrouted and its utilities have been removed from the base system.
1170 Some ioctl(2) command codes have changed. Full backward ABI
1171 compatibility is provided if the "options COMPAT_FREEBSD6" is
1172 present in the kernel configuration file. Make sure to add
1173 this option to your kernel config file, or recompile X.Org
1174 and the rest of ports; otherwise they may refuse to work.
1177 tcpslice has been removed from the base system.
1180 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
1181 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
1182 systat needs to be rebuilt.
1185 libpcap updated to v0.9.4 and tcpdump to v3.9.4
1188 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
1189 for IPFIREWALL_FORWARD is now as it was before when it was first
1190 committed and for years after. The behaviour is now ON.
1193 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
1194 Now it can decrypt files created from different architectures.
1195 Unfortunately, it is no longer able to decrypt a cipher text
1196 generated with an older version on 64 bit architectures.
1197 If you have such a file, you need old utility to decrypt it.
1200 The interface version of the i4b kernel part has changed. So
1201 after updating the kernel sources and compiling a new kernel,
1202 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
1203 be rebuilt, and vice versa.
1206 The XBOX kernel now defaults to the nfe(4) driver instead of
1207 the nve(4) driver. Please update your configuration
1211 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
1212 PCnet family of NICs has been removed. The new le(4) driver serves
1213 as an equivalent but cross-platform replacement with the pcn(4)
1214 driver still providing performance-optimized support for the subset
1215 of AMD Am79C971 PCnet-FAST and greater chips as before.
1218 The machdep.* sysctls and the adjkerntz utility have been
1219 modified a bit. The new adjkerntz utility uses the new
1220 sysctl names and sysctlbyname() calls, so it may be impossible
1221 to run an old /sbin/adjkerntz utility in single-user mode
1222 with a new kernel. Replace the `adjkerntz -i' step before
1223 `make installworld' with:
1225 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
1227 and proceed as usual with the rest of the installworld-stage
1228 steps. Otherwise, you risk installing binaries with their
1229 timestamp set several hours in the future, especially if
1230 you are running with local time set to GMT+X hours.
1233 The ip6fw utility has been removed. The behavior provided by
1234 ip6fw has been in ipfw2 for a good while and the rc.d scripts
1235 have been updated to deal with it. There are some rules that
1236 might not migrate cleanly. Use rc.firewall6 as a template to
1240 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
1241 attachments have been removed. Make sure to configure scc(4)
1242 on sparc64. Note also that by default puc(4) will use uart(4)
1243 and not sio(4) for serial ports because interrupt handling has
1244 been optimized for multi-port serial cards and only uart(4)
1245 implements the interface to support it.
1248 The scc(4) driver replaces puc(4) for Serial Communications
1249 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
1250 Z8530. On sparc64, it is advised to add scc(4) to the kernel
1251 configuration to make sure that the serial ports remain
1255 Most world/kernel related NO_* build options changed names.
1256 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
1257 after FreeBSD ports) and should be set in /etc/src.conf
1258 (the src.conf(5) manpage is provided). Full backwards
1259 compatibility is maintained for the time being though it's
1260 highly recommended to start moving old options out of the
1261 system-wide /etc/make.conf file into the new /etc/src.conf
1262 while also properly renaming them. More conversions will
1263 likely follow. Posting to current@:
1265 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
1268 The NETSMBCRYPTO kernel option has been retired because its
1269 functionality is always included in NETSMB and smbfs.ko now.
1272 The TDFX_LINUX kernel option was retired and replaced by the
1273 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
1274 kernel module. Loading it alone should suffice to get 3dfx support
1275 for Linux apps because it will pull in 3dfx.ko and linux.ko through
1279 The 'audit' group was added to support the new auditing functionality
1280 in the base system. Be sure to follow the directions for updating,
1281 including the requirement to run mergemaster -p.
1284 The kernel ABI to file system modules was changed on i386.
1285 Please make sure that your kernel and modules are in sync.
1288 This actually occured some time ago, but installing the kernel
1289 now also installs a bunch of symbol files for the kernel modules.
1290 This increases the size of /boot/kernel to about 67Mbytes. You
1291 will need twice this if you will eventually back this up to kernel.old
1292 on your next install.
1293 If you have a shortage of room in your root partition, you should add
1294 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
1295 to your /etc/make.conf.
1298 libc's malloc implementation has been replaced. This change has the
1299 potential to uncover application bugs that previously went unnoticed.
1300 See the malloc(3) manual page for more details.
1303 The generic netgraph(4) cookie has been changed. If you upgrade
1304 kernel passing this point, you also need to upgrade userland
1305 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
1308 si(4)'s device files now contain the unit number.
1309 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
1312 The kernel ABI was mostly destroyed due to a change in the size
1313 of struct lock_object which is nested in other structures such
1314 as mutexes which are nested in all sorts of other structures.
1315 Make sure your kernel and modules are in sync.
1318 The page coloring algorithm in the VM subsystem was converted
1319 from tuning with kernel options to autotuning. Please remove
1320 any PQ_* option except PQ_NOOPT from your kernel config.
1323 The net80211-related tools in the tools/tools/ath directory
1324 have been moved to tools/tools/net80211 and renamed with a
1325 "wlan" prefix. Scripts that use them should be adjusted
1329 Scripts in the local_startup directories (as defined in
1330 /etc/defaults/rc.conf) that have the new rc.d semantics will
1331 now be run as part of the base system rcorder. If there are
1332 errors or problems with one of these local scripts, it could
1333 cause boot problems. If you encounter such problems, boot in
1334 single user mode, remove that script from the */rc.d directory.
1335 Please report the problem to the port's maintainer, and the
1336 freebsd-ports@freebsd.org mailing list.
1339 The nodev mount option was deprecated in RELENG_6 (where it
1340 was a no-op), and is now unsupported. If you have nodev or dev listed
1341 in /etc/fstab, remove it, otherwise it will result in a mount error.
1344 ABI between ipfw(4) and ipfw(8) has been changed. You need
1345 to rebuild ipfw(8) when rebuilding kernel.
1348 rp(4)'s device files now contain the unit number.
1349 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
1352 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
1353 Its /etc/rc.conf.d configuration file has been `ppp' from
1354 the beginning, and hence there is no need to touch it.
1357 Now most modules get their build-time options from the kernel
1358 configuration file. A few modules still have fixed options
1359 due to their non-conformant implementation, but they will be
1360 corrected eventually. You may need to review the options of
1361 the modules in use, explicitly specify the non-default options
1362 in the kernel configuration file, and rebuild the kernel and
1366 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
1367 to turn polling(4) on your interfaces.
1370 The old bridge(4) implementation was retired. The new
1371 if_bridge(4) serves as a full functional replacement.
1374 The ai_addrlen of a struct addrinfo was changed to a socklen_t
1375 to conform to POSIX-2001. This change broke an ABI
1376 compatibility on 64 bit architecture. You have to recompile
1377 userland programs that use getaddrinfo(3) on 64 bit
1381 RELENG_6 branched here.
1384 The pccard_ifconfig rc.conf variable has been removed and a new
1385 variable, ifconfig_DEFAULT has been introduced. Unlike
1386 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
1387 do not have ifconfig_ifn entries rather than just those in
1388 removable_interfaces.
1391 Some previous versions of PAM have permitted the use of
1392 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
1393 to third party PAM modules in /usr/local/lib. A change has been
1394 made to require the use of absolute paths in order to avoid
1395 ambiguity and dependence on library path configuration, which may
1396 affect existing configurations.
1399 Major changes to network interface API. All drivers must be
1400 recompiled. Drivers not in the base system will need to be
1401 updated to the new APIs.
1404 Changes were made to kinfo_proc in sys/user.h. Please recompile
1405 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
1406 will not behave correctly.
1408 The API and ABI for hwpmc(4) have changed with the addition
1409 of sampling support. Please recompile lib/libpmc(3) and
1410 usr.sbin/{pmcstat,pmccontrol}.
1413 The OpenBSD dhclient was imported in place of the ISC dhclient
1414 and the network interface configuration scripts were updated
1415 accordingly. If you use DHCP to configure your interfaces, you
1416 must now run devd. Also, DNS updating was lost so you will need
1417 to find a workaround if you use this feature.
1419 The '_dhcp' user was added to support the OpenBSD dhclient. Be
1420 sure to run mergemaster -p (like you are supposed to do every time
1424 if_bridge was added to the tree. This has changed struct ifnet.
1425 Please recompile userland and all network related modules.
1428 The n_net of a struct netent was changed to an uint32_t, and
1429 1st argument of getnetbyaddr() was changed to an uint32_t, to
1430 conform to POSIX-2001. These changes broke an ABI
1431 compatibility on 64 bit architecture. With these changes,
1432 shlib major of libpcap was bumped. You have to recompile
1433 userland programs that use getnetbyaddr(3), getnetbyname(3),
1434 getnetent(3) and/or libpcap on 64 bit architecture.
1437 Kernel parsing of extra options on '#!' first lines of shell
1438 scripts has changed. Lines with multiple options likely will
1439 fail after this date. For full details, please see
1440 http://people.freebsd.org/~gad/Updating-20050528.txt
1443 The packet filter (pf) code has been updated to OpenBSD 3.7
1444 Please note the changed anchor syntax and the fact that
1445 authpf(8) now needs a mounted fdescfs(5) to function.
1448 The NO_MIXED_MODE kernel option has been removed from the i386
1449 amd64 platforms as its use has been superceded by the new local
1450 APIC timer code. Any kernel config files containing this option
1454 The on-disk format of LC_CTYPE files was changed to be machine
1455 independent. Please make sure NOT to use NO_CLEAN buildworld
1456 when crossing this point. Crossing this point also requires
1457 recompile or reinstall of all locale depended packages.
1460 The ifi_epoch member of struct if_data has been changed to
1461 contain the uptime at which the interface was created or the
1462 statistics zeroed rather then the wall clock time because
1463 wallclock time may go backwards. This should have no impact
1464 unless an snmp implementation is using this value (I know of
1465 none at this point.)
1468 The acpi_perf and acpi_throttle drivers are now part of the
1469 acpi(4) main module. They are no longer built separately.
1472 The layout of struct image_params has changed. You have to
1473 recompile all compatibility modules (linux, svr4, etc) for use
1474 with the new kernel.
1477 The p4tcc driver has been merged into cpufreq(4). This makes
1478 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
1479 compile in "device cpufreq" to restore this functionality.
1482 The responsibility of recomputing the file system summary of
1483 a SoftUpdates-enabled dirty volume has been transferred to the
1484 background fsck. A rebuild of fsck(8) utility is recommended
1485 if you have updated the kernel.
1487 To get the old behavior (recompute file system summary at mount
1488 time), you can set vfs.ffs.compute_summary_at_mount=1 before
1489 mounting the new volume.
1492 The cpufreq import is complete. As part of this, the sysctls for
1493 acpi(4) throttling have been removed. The power_profile script
1494 has been updated, so you can use performance/economy_cpu_freq in
1495 rc.conf(5) to set AC on/offline cpu frequencies.
1498 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
1499 requires recompiling libnetgraph and userland netgraph utilities.
1502 Support for abbreviated forms of a number of ipfw options is
1503 now deprecated. Warnings are printed to stderr indicating the
1504 correct full form when a match occurs. Some abbreviations may
1505 be supported at a later date based on user feedback. To be
1506 considered for support, abbreviations must be in use prior to
1507 this commit and unlikely to be confused with current key words.
1510 By a popular demand, a lot of NOFOO options were renamed
1511 to NO_FOO (see bsd.compat.mk for a full list). The old
1512 spellings are still supported, but will cause annoying
1513 warnings on stderr. Make sure you upgrade properly (see
1514 the COMMON ITEMS: section later in this file).
1517 Auto-loading of ancillary wlan modules such as wlan_wep has
1518 been temporarily disabled; you need to statically configure
1519 the modules you need into your kernel or explicitly load them
1520 prior to use. Specifically, if you intend to use WEP encryption
1521 with an 802.11 device load/configure wlan_wep; if you want to
1522 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
1523 and wlan_xauth as required.
1526 The behaviour of ppp(8) has changed slightly. If lqr is enabled
1527 (``enable lqr''), older versions would revert to LCP ECHO mode on
1528 negotiation failure. Now, ``enable echo'' is required for this
1529 behaviour. The ppp version number has been bumped to 3.4.2 to
1533 The wlan support has been updated to split the crypto support
1534 into separate modules. For static WEP you must configure the
1535 wlan_wep module in your system or build and install the module
1536 in place where it can be loaded (the kernel will auto-load
1537 the module when a wep key is configured).
1540 The ath driver has been updated to split the tx rate control
1541 algorithm into a separate module. You need to include either
1542 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
1545 Support for systems with an 80386 CPU has been removed. Please
1546 use FreeBSD 5.x or earlier on systems with an 80386.
1549 We have had a hack which would mount the root filesystem
1550 R/W if the device were named 'md*'. As part of the vnode
1551 work I'm doing I have had to remove this hack. People
1552 building systems which use preloaded MD root filesystems
1553 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
1554 their /etc/rc scripts.
1557 FreeBSD 5.3 shipped here.
1560 The size of struct tcpcb has changed again due to the removal
1561 of RFC1644 T/TCP. You have to recompile userland programs that
1562 read kmem for tcp sockets directly (netstat, sockstat, etc.)
1565 The size of struct tcpcb has changed. You have to recompile
1566 userland programs that read kmem for tcp sockets directly
1567 (netstat, sockstat, etc.)
1570 RELENG_5 branched here. For older entries, please see updating
1571 in the RELENG_5 branch.
1577 Avoid using make -j when upgrading. From time to time in the
1578 past there have been problems using -j with buildworld and/or
1579 installworld. This is especially true when upgrading between
1580 "distant" versions (eg one that cross a major release boundary
1581 or several minor releases, or when several months have passed
1582 on the -current branch).
1584 Sometimes, obscure build problems are the result of environment
1585 poisoning. This can happen because the make utility reads its
1586 environment when searching for values for global variables.
1587 To run your build attempts in an "environmental clean room",
1588 prefix all make commands with 'env -i '. See the env(1) manual
1589 page for more details.
1591 When upgrading from one major version to another it is generally
1592 best to upgrade to the latest code in the currently installed branch
1593 first, then do an upgrade to the new branch. This is the best-tested
1594 upgrade path, and has the highest probability of being successful.
1595 Please try this approach before reporting problems with a major
1600 When upgrading the boot ZFS pool to a new version, always follow
1603 1.) recompile and reinstall the ZFS boot loader and boot block
1604 (this is part of "make buildworld" and "make installworld")
1606 2.) update the ZFS boot block on your boot drive
1608 The following example updates the ZFS boot block on the first
1609 partition (freebsd-boot) of a GPT partitioned drive ad0:
1610 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0"
1612 Non-boot pools do not need these updates.
1616 If you are updating from a prior version of FreeBSD (even one just
1617 a few days old), you should follow this procedure. It is the most
1618 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
1620 make kernel-toolchain
1621 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
1622 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
1624 To test a kernel once
1625 ---------------------
1626 If you just want to boot a kernel once (because you are not sure
1627 if it works, or if you want to boot a known bad kernel to provide
1628 debugging information) run
1629 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
1630 nextboot -k testkernel
1632 To just build a kernel when you know that it won't mess you up
1633 --------------------------------------------------------------
1634 This assumes you are already running a 5.X system. Replace
1635 ${arch} with the architecture of your machine (e.g. "i386",
1636 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
1638 cd src/sys/${arch}/conf
1639 config KERNEL_NAME_HERE
1640 cd ../compile/KERNEL_NAME_HERE
1645 If this fails, go to the "To build a kernel" section.
1647 To rebuild everything and install it on the current system.
1648 -----------------------------------------------------------
1649 # Note: sometimes if you are running current you gotta do more than
1650 # is listed here if you are upgrading from a really old current.
1652 <make sure you have good level 0 dumps>
1654 make kernel KERNCONF=YOUR_KERNEL_HERE
1656 <reboot in single user> [3]
1664 To cross-install current onto a separate partition
1665 --------------------------------------------------
1666 # In this approach we use a separate partition to hold
1667 # current's root, 'usr', and 'var' directories. A partition
1668 # holding "/", "/usr" and "/var" should be about 2GB in
1671 <make sure you have good level 0 dumps>
1674 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1675 <maybe newfs current's root partition>
1676 <mount current's root partition on directory ${CURRENT_ROOT}>
1677 make installworld DESTDIR=${CURRENT_ROOT}
1678 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1679 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1680 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
1681 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1682 <reboot into current>
1683 <do a "native" rebuild/install as described in the previous section>
1684 <maybe install compatibility libraries from ports/misc/compat*>
1688 To upgrade in-place from 5.x-stable to current
1689 ----------------------------------------------
1690 <make sure you have good level 0 dumps>
1692 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
1694 <reboot in single user> [3]
1701 Make sure that you've read the UPDATING file to understand the
1702 tweaks to various things you need. At this point in the life
1703 cycle of current, things change often and you are on your own
1704 to cope. The defaults can also change, so please read ALL of
1705 the UPDATING entries.
1707 Also, if you are tracking -current, you must be subscribed to
1708 freebsd-current@freebsd.org. Make sure that before you update
1709 your sources that you have read and understood all the recent
1710 messages there. If in doubt, please track -stable which has
1711 much fewer pitfalls.
1713 [1] If you have third party modules, such as vmware, you
1714 should disable them at this point so they don't crash your
1717 [3] From the bootblocks, boot -s, and then do
1722 adjkerntz -i # if CMOS is wall time
1723 Also, when doing a major release upgrade, it is required that
1724 you boot into single user mode to do the installworld.
1726 [4] Note: This step is non-optional. Failure to do this step
1727 can result in a significant reduction in the functionality of the
1728 system. Attempting to do it by hand is not recommended and those
1729 that pursue this avenue should read this file carefully, as well
1730 as the archives of freebsd-current and freebsd-hackers mailing lists
1731 for potential gotchas.
1733 [5] Usually this step is a noop. However, from time to time
1734 you may need to do this if you get unknown user in the following
1735 step. It never hurts to do it all the time. You may need to
1736 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1737 install) after the buildworld before this step if you last updated
1738 from current before 20020224 or from -stable before 20020408.
1740 [8] In order to have a kernel that can run the 4.x binaries
1741 needed to do an installworld, you must include the COMPAT_FREEBSD4
1742 option in your kernel. Failure to do so may leave you with a system
1743 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
1744 is required to run the 5.x binaries on more recent kernels.
1746 Make sure that you merge any new devices from GENERIC since the
1747 last time you updated your kernel config file.
1749 [9] When checking out sources, you must include the -P flag to have
1750 cvs prune empty directories.
1752 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1753 "?=" instead of the "=" assignment operator, so that buildworld can
1754 override the CPUTYPE if it needs to.
1756 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1757 not on the command line, or in /etc/make.conf. buildworld will
1758 warn if it is improperly defined.
1761 This file contains a list, in reverse chronological order, of major
1762 breakages in tracking -current. Not all things will be listed here,
1763 and it only starts on October 16, 2004. Updating files can found in
1764 previous releases if your system is older than this.
1766 Copyright information:
1768 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
1770 Redistribution, publication, translation and use, with or without
1771 modification, in full or in part, in any form or format of this
1772 document are permitted without further permission from the author.
1774 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1775 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1776 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1777 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1778 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1779 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1780 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1781 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1782 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1783 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1784 POSSIBILITY OF SUCH DAMAGE.
1786 If you find this document useful, and you want to, you may buy the
1789 Contact Warner Losh if you have any questions about your use of