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: p4 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: p3 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: p2 FreeBSD-SA-11:02.bind
28 Fix BIND remote DoS with large RRSIG RRsets and negative
31 20110420: p1 FreeBSD-SA-11:01.mountd
32 Fix CIDR parsing bug in mountd ACLs.
38 New version of minidump format for amd64 architecture was
39 introduced in r215872. To analyze vmcore files produced by
40 kernels at or after this version you will need updated userland,
41 libkvm actually, that is able to handle the new version.
44 A workaround for a fixed ld bug has been removed in kernel code,
45 so make sure that your system ld is built from sources after
46 revision 211583 from 2010-08-21 (r210245 from 2010-07-19 if
47 building stable/8 kernel on head, r211584 from 2010-08-21 for
48 stable/7). A symptom of incorrect ld version is
49 different addresses for set_pcpu section and __start_set_pcpu
50 symbol in kernel and/or modules.
53 A new version of ZFS (version 15) has been merged.
54 This version uses a python library for the following subcommands:
55 zfs allow, zfs unallow, zfs groupspace, zfs userspace.
56 For full functionality of these commands the following port must
57 be installed: sysutils/py-zfs
63 The config(8) command has been updated to maintain compatibility
64 with config files from 8.0-RELEASE. You will need a new version
65 of config to build kernels (this version can be used from 8.0-RELEASE
66 forward). The buildworld target will generate it, so following
67 the instructions in this file for updating will work glitch-free.
68 Merely doing a make buildkernel without first doing a make buildworld
69 (or kernel-toolchain), or attempting to build a kernel using
70 traidtional methods will generate a config version warning, indicating
74 The rc.firewall and rc.firewall6 were unified, and
75 rc.firewall6 and rc.d/ip6fw were removed.
76 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc
77 variables are obsoleted. Instead, the following new rc
78 variables are added to rc.d/ipfw:
80 firewall_client_net_ipv6, firewall_simple_iif_ipv6,
81 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6,
82 firewall_simple_onet_ipv6
84 The meanings correspond to the relevant IPv4 variables.
87 COMPAT_IA32 has been added as an alias for COMPAT_FREEBSD32. A new
88 version of config(8) is required. The error message when you hit this
89 condition is confusing (COMPAT_FREEBSD32 duplicate option), when it
90 should really say "your config is too old to compile this new kernel."
93 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32
94 to allow 32-bit compatibility on non-x86 platforms. All kernel
95 configurations on amd64 and ia64 platforms using these options must
96 be modified accordingly.
99 Introduce the kernel thread "deadlock resolver" (which can be enabled
100 via the DEADLKRES option, see NOTES for more details) and the
101 sleepq_type() function for sleepqueues.
107 802.11s D3.03 support was committed. This is incompatible with
108 the previous code, which was based on D3.0.
111 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
112 mount(8) and -a option for df(1) to see them.
115 Remove the option STOP_NMI. The default action is now to use NMI
116 only for KDB via the newly introduced function stop_cpus_hard()
117 and maintain stop_cpus() to just use a normal IPI_STOP on ia32
124 Bump the shared library version numbers for all libraries that
125 do not use symbol versioning as part of the 8.0-RELEASE cycle.
126 Bump __FreeBSD_version to 800105.
129 Due to changes in the implementation of virtual network stack
130 support, all network-related kernel modules must be recompiled.
131 As this change breaks the ABI, bump __FreeBSD_version to 800104.
134 The TOE interface to the TCP syncache has been modified to remove struct
135 tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. The
136 cxgb driver is the only TOE consumer affected by this change, and needs
137 to be recompiled along with the kernel. As this change breaks the ABI,
138 bump __FreeBSD_version to 800103.
141 Padding has been added to struct tcpcb, sackhint and tcpstat in
142 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
143 maintainig the ABI. However, this change breaks the ABI, so bump
144 __FreeBSD_version to 800102. User space tools that rely on the size of
145 any of these structs (e.g. sockstat) need to be recompiled.
148 The NFS_LEGACYRPC option has been removed along with the old
149 kernel RPC implementation that this option selected. Kernel
150 configurations may need to be adjusted.
153 The network interface device nodes at /dev/net/<interface> have
154 been removed. All ioctl operations can be performed the normal
155 way using routing sockets. The kqueue functionality can
156 generally be replaced with routing sockets.
159 The documentation from the FreeBSD Documentation Project
160 (Handbook, FAQ, etc.) is now installed via packages by
161 sysinstall(8) and under the /usr/local/share/doc/freebsd
162 directory instead of /usr/share/doc.
165 The ABI of various structures related to the SYSV IPC API have
166 been changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43
167 kernel options now all require COMPAT_FREEBSD7.
168 Bump __FreeBSD_version to 800100.
171 Layout of struct vnet has changed as routing related variables
172 were moved to their own Vimage module. Modules need to be
173 recompiled. Bump __FreeBSD_version to 800099.
176 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023
177 and 1024 respectively. As long as no more than 16 groups per
178 process are used, no changes should be visible. When more
179 than 16 groups are used, old binaries may fail if they call
180 getgroups() or getgrouplist() with statically sized storage.
181 Recompiling will work around this, but applications should be
182 modified to use dynamically allocated storage for group arrays
183 as POSIX.1-2008 does not cap an implementation's number of
184 supported groups at NGROUPS_MAX+1 as previous versions did.
186 NFS and portalfs mounts may also be affected as the list of
187 groups is truncated to 16. Users of NFS who use more than 16
188 groups, should take care that negative group permissions are not
189 used on the exported file systems as they will not be reliable
190 unless a GSSAPI based authentication method is used.
193 The compiling option ADAPTIVE_LOCKMGRS has been introduced.
194 This option compiles in the support for adaptive spinning for lockmgrs
195 which want to enable it. The lockinit() function now accepts the
196 flag LK_ADAPTIVE in order to make the lock object subject to
197 adaptive spinning when both held in write and read mode.
200 The layout of the structure returned by IEEE80211_IOC_STA_INFO
201 has changed. User applications that use this ioctl need to be
205 The layout of struct thread has changed. Kernel and modules
209 The layout of structs ifnet, domain, protosw and vnet_net has
210 changed. Kernel modules need to be rebuilt.
211 Bump __FreeBSD_version to 800097.
214 window(1) has been removed from the base system. It can now be
215 installed from ports. The port is called misc/window.
218 The way we are storing and accessing `routing table' entries
219 has changed. Programs reading the FIB, like netstat, need to
223 A new netisr implementation has been added for FreeBSD 8. Network
224 file system modules, such as igmp, ipdivert, and others, should be
226 Bump __FreeBSD_version to 800096.
229 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose
233 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
234 Bump __FreeBSD_version to 800094.
237 Add mnt_xflag field to 'struct mount'. File system modules
239 Bump __FreeBSD_version to 800093.
242 The compiling option ADAPTIVE_SX has been retired while it has been
243 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
244 The KPI for sx_init_flags() changes as accepting flags:
245 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag
246 has been introduced in order to handle the reversed logic.
247 Bump __FreeBSD_version to 800092.
250 Add support for hierarchical jails. Remove global securelevel.
251 Bump __FreeBSD_version to 800091.
254 The layout of struct vnet_net has changed, therefore modules
256 Bump __FreeBSD_version to 800090.
259 The newly imported zic(8) produces a new format in the
260 output. Please run tzsetup(8) to install the newly created
261 data to /etc/localtime.
264 The sysctl tree for the usb stack has renamed from hw.usb2.* to
265 hw.usb.* and is now consistent again with previous releases.
268 802.11 monitor mode support was revised and driver api's
269 were changed. Drivers dependent on net80211 now support
270 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No
271 user-visible data structures were changed but applications
272 that use DLT_IEEE802_11 may require changes.
273 Bump __FreeBSD_version to 800088.
276 The layout of the following structs has changed: sysctl_oid,
277 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
278 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
279 panics may be experienced. World rebuild is required for
280 correctly checking networking state from userland.
281 Bump __FreeBSD_version to 800085.
284 MLDv2 and Source-Specific Multicast (SSM) have been merged
285 to the IPv6 stack. VIMAGE hooks are in but not yet used.
286 The implementation of SSM within FreeBSD's IPv6 stack closely
287 follows the IPv4 implementation.
289 For kernel developers:
291 * The most important changes are that the ip6_output() and
292 ip6_input() paths no longer take the IN6_MULTI_LOCK,
293 and this lock has been downgraded to a non-recursive mutex.
295 * As with the changes to the IPv4 stack to support SSM, filtering
296 of inbound multicast traffic must now be performed by transport
297 protocols within the IPv6 stack. This does not apply to TCP and
298 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
300 * The KPIs used by IPv6 multicast are similar to those used by
301 the IPv4 stack, with the following differences:
302 * im6o_mc_filter() is analogous to imo_multicast_filter().
303 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
304 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
305 * IN6_LOOKUP_MULTI() has been deprecated and removed.
306 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
307 for MLDv1 have an additional 'timer' argument which is used to
308 jitter the initial membership report for the solicited-node
309 multicast membership on-link.
310 * This is not strictly needed for MLDv2, which already jitters
311 its report transmissions. However, the 'timer' argument is
312 preserved in case MLDv1 is active on the interface.
314 * The KAME linked-list based IPv6 membership implementation has
315 been refactored to use a vector similar to that used by the IPv4
317 Code which maintains a list of its own multicast memberships
318 internally, e.g. carp, has been updated to reflect the new
321 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
322 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
323 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
324 implementation constraint which needs to be addressed in HEAD.
326 For application developers:
328 * The changes are broadly similar to those made for the IPv4
331 * The use of IPv4 and IPv6 multicast socket options on the same
332 socket, using mapped addresses, HAS NOT been tested or supported.
334 * There are a number of issues with the implementation of various
335 IPv6 multicast APIs which need to be resolved in the API surface
336 before the implementation is fully compatible with KAME userland
337 use, and these are mostly to do with interface index treatment.
339 * The literature available discusses the use of either the delta / ASM
340 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
341 using setsourcefilter(3)/getsourcefilter(3). For more information
342 please refer to RFC 3768, 'Socket Interface Extensions for
343 Multicast Source Filters'.
345 * Applications which use the published RFC 3678 APIs should be fine.
347 For systems administrators:
349 * The mtest(8) utility has been refactored to support IPv6, in
350 addition to IPv4. Interface addresses are no longer accepted
351 as arguments, their names must be used instead. The utility
352 will map the interface name to its first IPv4 address as
353 returned by getifaddrs(3).
355 * The ifmcstat(8) utility has also been updated to print the MLDv2
356 endpoint state and source filter lists via sysctl(3).
358 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
359 loopback of IPv6 multicast datagrams by default; it defaults to 1
360 to preserve the existing behaviour. Disabling multicast loopback is
361 recommended for optimal system performance.
363 * The IPv6 MROUTING code has been changed to examine this sysctl
364 instead of attempting to perform a group lookup before looping
365 back forwarded datagrams.
367 Bump __FreeBSD_version to 800084.
370 Implement low-level Bluetooth HCI API.
371 Bump __FreeBSD_version to 800083.
374 The layout of struct malloc_type, used by modules to register new
375 memory allocation types, has changed. Most modules will need to
376 be rebuilt or panics may be experienced.
377 Bump __FreeBSD_version to 800081.
380 Anticipate overflowing inp_flags - add inp_flags2.
381 This changes most offsets in inpcb, so checking v4 connection
382 state will require a world rebuild.
383 Bump __FreeBSD_version to 800080.
386 Add an llentry to struct route and struct route_in6. Modules
387 embedding a struct route will need to be recompiled.
388 Bump __FreeBSD_version to 800079.
391 The size of rt_metrics_lite and by extension rtentry has changed.
392 Networking administration apps will need to be recompiled.
393 The route command now supports show as an alias for get, weighting
394 of routes, sticky and nostick flags to alter the behavior of stateful
396 Bump __FreeBSD_version to 800078.
399 Do not use Giant for kbdmux(4) locking. This is wrong and
400 apparently causing more problems than it solves. This will
401 re-open the issue where interrupt handlers may race with
402 kbdmux(4) in polling mode. Typical symptoms include (but
403 not limited to) duplicated and/or missing characters when
404 low level console functions (such as gets) are used while
405 interrupts are enabled (for example geli password prompt,
406 mountroot prompt etc.). Disabling kbdmux(4) may help.
409 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
410 kernel modules referencing any of the above need to be recompiled.
411 Bump __FreeBSD_version to 800075.
414 GEOM_PART has become the default partition slicer for storage devices,
415 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
416 introduces some changes:
418 MSDOS/EBR: the devices created from MSDOS extended partition entries
419 (EBR) can be named differently than with GEOM_MBR and are now symlinks
420 to devices with offset-based names. fstabs may need to be modified.
422 BSD: the "geometry does not match label" warning is harmless in most
423 cases but it points to problems in file system misalignment with
424 disk geometry. The "c" partition is now implicit, covers the whole
425 top-level drive and cannot be (mis)used by users.
427 General: Kernel dumps are now not allowed to be written to devices
428 whose partition types indicate they are meant to be used for file
429 systems (or, in case of MSDOS partitions, as something else than
432 Most of these changes date approximately from 200812.
435 The uscanner(4) driver has been removed from the kernel. This follows
436 Linux removing theirs in 2.6 and making libusb the default interface
440 The multicast forwarding code has been cleaned up. netstat(1)
441 only relies on KVM now for printing bandwidth upcall meters.
442 The IPv4 and IPv6 modules are split into ip_mroute_mod and
443 ip6_mroute_mod respectively. The config(5) options for statically
444 compiling this code remain the same, i.e. 'options MROUTING'.
447 Support for the IFF_NEEDSGIANT network interface flag has been
448 removed, which means that non-MPSAFE network device drivers are no
449 longer supported. In particular, if_ar, if_sr, and network device
450 drivers from the old (legacy) USB stack can no longer be built or
454 POSIX.1 Native Language Support (NLS) has been enabled in libc and
455 a bunch of new language catalog files have also been added.
456 This means that some common libc messages are now localized and
457 they depend on the LC_MESSAGES environmental variable.
460 The k8temp(4) driver has been renamed to amdtemp(4) since
461 support for K10 and K11 CPU families was added.
464 IGMPv3 and Source-Specific Multicast (SSM) have been merged
465 to the IPv4 stack. VIMAGE hooks are in but not yet used.
467 For kernel developers, the most important changes are that the
468 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
469 and this lock has been downgraded to a non-recursive mutex.
471 Transport protocols (UDP, Raw IP) are now responsible for filtering
472 inbound multicast traffic according to group membership and source
473 filters. The imo_multicast_filter() KPI exists for this purpose.
474 Transports which do not use multicast (SCTP, TCP) already reject
475 multicast by default. Forwarding and receive performance may improve
476 as a mutex acquisition is no longer needed in the ip_input()
477 low-level input path. in_addmulti() and in_delmulti() are shimmed
478 to new KPIs which exist to support SSM in-kernel.
480 For application developers, it is recommended that loopback of
481 multicast datagrams be disabled for best performance, as this
482 will still cause the lock to be taken for each looped-back
483 datagram transmission. The net.inet.ip.mcast.loop sysctl may
484 be tuned to 0 to disable loopback by default; it defaults to 1
485 to preserve the existing behaviour.
487 For systems administrators, to obtain best performance with
488 multicast reception and multiple groups, it is always recommended
489 that a card with a suitably precise hash filter is used. Hash
490 collisions will still result in the lock being taken within the
491 transport protocol input path to check group membership.
493 If deploying FreeBSD in an environment with IGMP snooping switches,
494 it is recommended that the net.inet.igmp.sendlocal sysctl remain
495 enabled; this forces 224.0.0.0/24 group membership to be announced
498 The size of 'struct igmpstat' has changed; netstat needs to be
499 recompiled to reflect this.
500 Bump __FreeBSD_version to 800070.
503 libusb20.so.1 is now installed as libusb.so.1 and the ports system
504 updated to use it. This requires a buildworld/installworld in order to
505 update the library and dependencies (usbconfig, etc). Its advisable to
506 rebuild all ports which uses libusb. More specific directions are given
507 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
508 libusb are no longer required and can be removed.
511 A workaround is committed to allow the creation of System V shared
512 memory segment of size > 2 GB on the 64-bit architectures.
513 Due to a limitation of the existing ABI, the shm_segsz member
514 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
515 wrong for large segments. Note that limits must be explicitly
516 raised to allow such segments to be created.
519 The layout of struct ifnet has changed, requiring a rebuild of all
520 network device driver modules.
523 The /dev handling for the new USB stack has changed, a
524 buildworld/installworld is required for libusb20.
527 The new USB2 stack has now been permanently moved in and all kernel and
528 module names reverted to their previous values (eg, usb, ehci, ohci,
529 ums, ...). The old usb stack can be compiled in by prefixing the name
530 with the letter 'o', the old usb modules have been removed.
531 Updating entry 20090216 for xorg and 20090215 for libmap may still
535 The rc.conf(5) option if_up_delay has been renamed to
536 defaultroute_delay to better reflect its purpose. If you have
537 customized this setting in /etc/rc.conf you need to update it to
541 xorg 7.4 wants to configure its input devices via hald which does not
542 yet work with USB2. If the keyboard/mouse does not work in xorg then
544 Option "AllowEmptyInput" "off"
545 to your ServerLayout section. This will cause X to use the configured
546 kbd and mouse sections from your xorg.conf.
549 The GENERIC kernels for all architectures now default to the new USB2
550 stack. No kernel config options or code have been removed so if a
551 problem arises please report it and optionally revert to the old USB
552 stack. If you are loading USB kernel modules or have a custom kernel
553 that includes GENERIC then ensure that usb names are also changed over,
554 eg uftdi -> usb2_serial_ftdi.
556 Older programs linked against the ports libusb 0.1 need to be
557 redirected to the new stack's libusb20. /etc/libmap.conf can
559 # Map old usb library to new one for usb2 stack
560 libusb-0.1.so.8 libusb20.so.1
563 All USB ethernet devices now attach as interfaces under the name ueN
564 (eg. ue0). This is to provide a predictable name as vendors often
565 change usb chipsets in a product without notice.
568 The ichsmb(4) driver has been changed to require SMBus slave
569 addresses be left-justified (xxxxxxx0b) rather than right-justified.
570 All of the other SMBus controller drivers require left-justified
571 slave addresses, so this change makes all the drivers provide the
575 INET6 statistics (struct ip6stat) was updated.
576 netstat(1) needs to be recompiled.
579 NTFS has been removed from GENERIC kernel on amd64 to match
580 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
581 will load ntfs.ko module automatically when NTFS support is
582 actually needed, unless ntfs.ko is not installed or security
583 level prohibits loading kernel modules. If either is the case,
584 "options NTFS" has to be added into kernel config.
587 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
588 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
589 800061. User space tools that rely on the size of struct tcpcb in
590 tcp_var.h (e.g. sockstat) need to be recompiled.
593 ng_tty(4) module updated to match the new TTY subsystem.
594 Due to API change, user-level applications must be updated.
595 New API support added to mpd5 CVS and expected to be present
596 in next mpd5.3 release.
599 With __FreeBSD_version 800060 the makefs tool is part of
600 the base system (it was a port).
603 The afdata and ifnet locks have been changed from mutexes to
604 rwlocks, network modules will need to be re-compiled.
607 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
608 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
609 The new code reduced struct rtentry{} by 16 bytes on 32-bit
610 architecture and 40 bytes on 64-bit architecture. The userland
611 applications "arp" and "ndp" have been updated accordingly.
612 The output from "netstat -r" shows only routing entries and
613 none of the L2 information.
616 __FreeBSD_version 800057 marks the switchover from the
617 binary ath hal to source code. Users must add the line:
619 options AH_SUPPORT_AR5416
621 to their kernel config files when specifying:
625 The ath_hal module no longer exists; the code is now compiled
626 together with the driver in the ath module. It is now
627 possible to tailor chip support (i.e. reduce the set of chips
628 and thereby the code size); consult ath_hal(4) for details.
631 __FreeBSD_version 800054 adds memory barriers to
632 <machine/atomic.h>, new interfaces to ifnet to facilitate
633 multiple hardware transmit queues for cards that support
634 them, and a lock-less ring-buffer implementation to
635 enable drivers to more efficiently manage queueing of
639 A new version of ZFS (version 13) has been merged to -HEAD.
640 This version has zpool attribute "listsnapshots" off by
641 default, which means "zfs list" does not show snapshots,
642 and is the same as Solaris behavior.
645 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
648 The uhci, ohci, ehci and slhci USB Host controller drivers have
649 been put into separate modules. If you load the usb module
650 separately through loader.conf you will need to load the
651 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
652 controller add the following to loader.conf:
658 The ABI used by the PMC toolset has changed. Please keep
659 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
663 atapci kernel module now includes only generic PCI ATA
664 driver. AHCI driver moved to ataahci kernel module.
665 All vendor-specific code moved into separate kernel modules:
666 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
667 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
668 atamarvell, atamicron, atanational, atanetcell, atanvidia,
669 atapromise, ataserverworks, atasiliconimage, atasis, atavia
672 The TTY subsystem of the kernel has been replaced by a new
673 implementation, which provides better scalability and an
674 improved driver model. Most common drivers have been migrated to
675 the new TTY subsystem, while others have not. The following
676 drivers have not yet been ported to the new TTY layer:
679 cy, digi, rc, rp, sio
685 ng_h4, ng_tty, ppp, sl, snp
687 Adding these drivers to your kernel configuration file shall
688 cause compilation to fail.
691 ntpd has been upgraded to 4.2.4p5.
694 OpenSSH has been upgraded to 5.1p1.
696 For many years, FreeBSD's version of OpenSSH preferred DSA
697 over RSA for host and user authentication keys. With this
698 upgrade, we've switched to the vendor's default of RSA over
699 DSA. This may cause upgraded clients to warn about unknown
700 host keys even for previously known hosts. Users should
701 follow the usual procedure for verifying host keys before
702 accepting the RSA key.
704 This can be circumvented by setting the "HostKeyAlgorithms"
705 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
708 Please note that the sequence of keys offered for
709 authentication has been changed as well. You may want to
710 specify IdentityFile in a different order to revert this
714 The sio(4) driver has been removed from the i386 and amd64
715 kernel configuration files. This means uart(4) is now the
716 default serial port driver on those platforms as well.
718 To prevent collisions with the sio(4) driver, the uart(4) driver
719 uses different names for its device nodes. This means the
720 onboard serial port will now most likely be called "ttyu0"
721 instead of "ttyd0". You may need to reconfigure applications to
722 use the new device names.
724 When using the serial port as a boot console, be sure to update
725 /boot/device.hints and /etc/ttys before booting the new kernel.
726 If you forget to do so, you can still manually specify the hints
727 at the loader prompt:
729 set hint.uart.0.at="isa"
730 set hint.uart.0.port="0x3F8"
731 set hint.uart.0.flags="0x10"
732 set hint.uart.0.irq="4"
736 The gpt(8) utility has been removed. Use gpart(8) to partition
740 The version that Linuxulator emulates was changed from 2.4.2
741 to 2.6.16. If you experience any problems with Linux binaries
742 please try to set sysctl compat.linux.osrelease to 2.4.2 and
743 if it fixes the problem contact emulation mailing list.
746 ISDN4BSD (I4B) was removed from the src tree. You may need to
747 update a your kernel configuration and remove relevant entries.
750 I have checked in code to support multiple routing tables.
751 See the man pages setfib(1) and setfib(2).
752 This is a hopefully backwards compatible version,
753 but to make use of it you need to compile your kernel
754 with options ROUTETABLES=2 (or more up to 16).
757 The 802.11 wireless support was redone to enable multi-bss
758 operation on devices that are capable. The underlying device
759 is no longer used directly but instead wlanX devices are
760 cloned with ifconfig. This requires changes to rc.conf files.
762 ifconfig_ath0="WPA DHCP"
765 ifconfig_wlan0="WPA DHCP"
766 see rc.conf(5) for more details. In addition, mergemaster of
767 /etc/rc.d is highly recommended. Simultaneous update of userland
768 and kernel wouldn't hurt either.
770 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
771 modules were merged into the base wlan module. All references
772 to these modules (e.g. in kernel config files) must be removed.
775 psm(4) has gained write(2) support in native operation level.
776 Arbitrary commands can be written to /dev/psm%d and status can
777 be read back from it. Therefore, an application is responsible
778 for status validation and error recovery. It is a no-op in
779 other operation levels.
782 Support for KSE threading has been removed from the kernel. To
783 run legacy applications linked against KSE libmap.conf may
784 be used. The following libmap.conf may be used to ensure
785 compatibility with any prior release:
787 libpthread.so.1 libthr.so.1
788 libpthread.so.2 libthr.so.2
789 libkse.so.3 libthr.so.3
792 The layout of struct vmspace has changed. This affects libkvm
793 and any executables that link against libkvm and use the
794 kvm_getprocs() function. In particular, but not exclusively,
795 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
796 The effects are minimal, but it's advisable to upgrade world
800 The latest em driver no longer has support in it for the
801 82575 adapter, this is now moved to the igb driver. The
802 split was done to make new features that are incompatible
803 with older hardware easier to do.
806 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
807 likewise the kernel option is now GEOM_LINUX_LVM.
810 The default NFS mount mode has changed from UDP to TCP for
811 increased reliability. If you rely on (insecurely) NFS
812 mounting across a firewall you may need to update your
816 Belatedly note the addition of m_collapse for compacting
820 The fts(3) structures have been changed to use adequate
821 integer types for their members and so to be able to cope
822 with huge file trees. The old fts(3) ABI is preserved
823 through symbol versioning in libc, so third-party binaries
824 using fts(3) should still work, although they will not take
825 advantage of the extended types. At the same time, some
826 third-party software might fail to build after this change
827 due to unportable assumptions made in its source code about
828 fts(3) structure members. Such software should be fixed
829 by its vendor or, in the worst case, in the ports tree.
830 FreeBSD_version 800015 marks this change for the unlikely
831 case that a portable fix is impossible.
834 To upgrade to -current after this date, you must be running
835 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
836 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
839 The ADAPTIVE_GIANT kernel option has been retired because its
840 functionality is the default now.
843 The AT keyboard emulation of sunkbd(4) has been turned on
844 by default. In order to make the special symbols of the Sun
845 keyboards driven by sunkbd(4) work under X these now have
846 to be configured the same way as Sun USB keyboards driven
847 by ukbd(4) (which also does AT keyboard emulation), f.e.:
849 Option "XkbLayout" "us"
850 Option "XkbRules" "xorg"
851 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
854 It has been decided that it is desirable to provide ABI
855 backwards compatibility to the FreeBSD 4/5/6 versions of the
856 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
857 broken with the introduction of PCI domain support (see the
858 20070930 entry). Unfortunately, this required the ABI of
859 PCIOCGETCONF to be broken again in order to be able to
860 provide backwards compatibility to the old version of that
861 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
862 again. As for prominent ports this affects neither pciutils
863 nor xorg-server this time, the hal port needs to be rebuilt
867 The misnamed kthread_create() and friends have been renamed
868 to kproc_create() etc. Many of the callers already
870 I will return kthread_create() and friends in a while
871 with implementations that actually create threads, not procs.
872 Renaming corresponds with version 800002.
878 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
879 WITHOUT_LIBTHR are set.
882 The PCI code has been made aware of PCI domains. This means that
883 the location strings as used by pciconf(8) etc are now in the
884 following format: pci<domain>:<bus>:<device>[:<function>]. It
885 also means that consumers of <sys/pciio.h> potentially need to
886 be recompiled; this includes the hal and xorg-server ports.
889 The caching daemon (cached) was renamed to nscd. nscd.conf
890 configuration file should be used instead of cached.conf and
891 nscd_enable, nscd_pidfile and nscd_flags options should be used
892 instead of cached_enable, cached_pidfile and cached_flags in
896 The getfacl(1) utility now prints owning user and group name
897 instead of owning uid and gid in the three line comment header.
898 This is the same behavior as getfacl(1) on Solaris and Linux.
901 The new IPsec code is now compiled in using the IPSEC option. The
902 IPSEC option now requires "device crypto" be defined in your kernel
903 configuration. The FAST_IPSEC kernel option is now deprecated.
906 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
907 note the changed syntax - keep state is now on by default. Also
908 note the fact that ftp-proxy(8) has been changed from bottom up and
909 has been moved from libexec to usr/sbin. Changes in the ALTQ
910 handling also affect users of IPFW's ALTQ capabilities.
913 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
914 only IPsec supported by FreeBSD. The new IPsec stack
915 supports both IPv4 and IPv6. The kernel option will change
916 after the code changes have settled in. For now the kernel
917 option IPSEC is deprecated and FAST_IPSEC is the only option, that
918 will change after some settling time.
921 The wicontrol(8) utility has been removed from the base system. wi(4)
922 cards should be configured using ifconfig(8), see the man page for more
926 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
927 instead of the nve(4) driver. Please update your configuration
931 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
932 database if it is missing or older than the aliases file. If
933 desired, set the new rc.conf option sendmail_rebuild_aliases
934 to "YES" to restore that functionality.
937 The IPv4 multicast socket code has been considerably modified, and
938 moved to the file sys/netinet/in_mcast.c. Initial support for the
939 RFC 3678 Source-Specific Multicast Socket API has been added to
940 the IPv4 network stack.
942 Strict multicast and broadcast reception is now the default for
943 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
944 has now been removed.
946 The RFC 1724 hack for interface selection has been removed; the use
947 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
948 been added to replace it. Consumers such as routed will soon be
949 updated to reflect this.
951 These changes affect users who are running routed(8) or rdisc(8)
952 from the FreeBSD base system on point-to-point or unnumbered
956 The net80211 layer has changed significantly and all wireless
957 drivers that depend on it need to be recompiled. Further these
958 changes require that any program that interacts with the wireless
959 support in the kernel be recompiled; this includes: ifconfig,
960 wpa_supplicant, hostapd, and wlanstats. Users must also, for
961 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
962 if they use modules for wireless support. These modules implement
963 scanning support for station and ap modes, respectively. Failure
964 to load the appropriate module before marking a wireless interface
965 up will result in a message to the console and the device not
969 The pam_nologin(8) module ceases to provide an authentication
970 function and starts providing an account management function.
971 Consequent changes to /etc/pam.d should be brought in using
972 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
973 need manual editing as follows. Locate this line (or similar):
975 auth required pam_nologin.so no_warn
977 and change it according to this example:
979 account required pam_nologin.so no_warn
981 That is, the first word needs to be changed from "auth" to
982 "account". The new line can be moved to the account section
983 within the file for clarity. Not updating pam.conf(5) files
984 will result in nologin(5) ignored by the respective services.
987 The ether_ioctl() function has been synchronized with ioctl(2)
988 and ifnet.if_ioctl. Due to that, the size of one of its arguments
989 has changed on 64-bit architectures. All kernel modules using
990 ether_ioctl() need to be rebuilt on such architectures.
993 Improved INCLUDE_CONFIG_FILE support has been introduced to the
994 config(8) utility. In order to take advantage of this new
995 functionality, you are expected to recompile and install
996 src/usr.sbin/config. If you don't rebuild config(8), and your
997 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
998 build will be broken because of a missing "kernconfstring"
1002 Symbol versioning is enabled by default. To disable it, use
1003 option WITHOUT_SYMVER. It is not advisable to attempt to
1004 disable symbol versioning once it is enabled; your installworld
1005 will break because a symbol version-less libc will get installed
1006 before the install tools. As a result, the old install tools,
1007 which previously had symbol dependencies to FBSD_1.0, will fail
1008 because the freshly installed libc will not have them.
1010 The default threading library (providing "libpthread") has been
1011 changed to libthr. If you wish to have libkse as your default,
1012 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
1015 The ABI breakage in sendmail(8)'s libmilter has been repaired
1016 so it is no longer necessary to recompile mail filters (aka,
1017 milters). If you recompiled mail filters after the 20070408
1018 note, it is not necessary to recompile them again.
1021 The new trunk(4) driver has been renamed to lagg(4) as it better
1022 reflects its purpose. ifconfig will need to be recompiled.
1025 sendmail(8) has been updated to version 8.14.1. Mail filters
1026 (aka, milters) compiled against the libmilter included in the
1027 base operating system should be recompiled.
1030 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
1031 In order to use them one must agree to the respective LICENSE in
1032 share/doc/legal and define legal.intel_<name>.license_ack=1 via
1033 loader.conf(5) or kenv(1). Make sure to deinstall the now
1034 deprecated modules from the respective firmware ports.
1037 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
1038 were removed from FreeBSD's libc. These originally came from INRIA
1039 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
1040 deprecated in previous releases.
1041 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
1042 replace it as a more portable (and re-entrant) API.
1045 To support interrupt filtering a modification to the newbus API
1046 has occurred, ABI was broken and __FreeBSD_version was bumped
1047 to 700031. Please make sure that your kernel and modules are in
1048 sync. For more info:
1049 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
1052 The IPv6 multicast forwarding code may now be loaded into GENERIC
1053 kernels by loading the ip_mroute.ko module. This is built into the
1054 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
1055 set; see src.conf(5) for more information.
1058 The output of netstat -r has changed. Without -n, we now only
1059 print a "network name" without the prefix length if the network
1060 address and mask exactly match a Class A/B/C network, and an entry
1061 exists in the nsswitch "networks" map.
1062 With -n, we print the full unabbreviated CIDR network prefix in
1063 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
1064 This change is in preparation for changes such as equal-cost
1065 multipath, and to more generally assist operational deployment
1066 of FreeBSD as a modern IPv4 router.
1069 PIM has been turned on by default in the IPv4 multicast
1070 routing code. The kernel option 'PIM' has now been removed.
1071 PIM is now built by default if option 'MROUTING' is specified.
1072 It may now be loaded into GENERIC kernels by loading the
1073 ip_mroute.ko module.
1076 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
1077 has been removed. Its functionality may be achieved by explicitly
1078 configuring gif(4) interfaces and using the 'phyint' keyword in
1080 XORP does not support source-routed IPv4 multicast tunnels nor the
1081 integrated IPIP tunneling, therefore it is not affected by this
1082 change. The __FreeBSD_version macro has been bumped to 700030.
1085 Support for PCI Message Signalled Interrupts has been
1086 re-enabled in the bge driver, only for those chips which are
1087 believed to support it properly. If there are any problems,
1088 MSI can be disabled completely by setting the
1089 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
1093 Support for PCI Message Signalled Interrupts has been
1094 disabled again in the bge driver. Many revisions of the
1095 hardware fail to support it properly. Support can be
1096 re-enabled by removing the #define of BGE_DISABLE_MSI in
1097 "src/sys/dev/bge/if_bge.c".
1100 Support for PCI Message Signalled Interrupts has been added
1101 to the bge driver. If there are any problems, MSI can be
1102 disabled completely by setting the 'hw.pci.enable_msi' and
1103 'hw.pci.enable_msix' tunables to 0 in the loader.
1106 The removal of several facets of the experimental Threading
1107 system from the kernel means that the proc and thread structures
1108 have changed quite a bit. I suggest all kernel modules that might
1109 reference these structures be recompiled.. Especially the
1113 Sound infrastructure has been updated with various fixes and
1114 improvements. Most of the changes are pretty much transparent,
1115 with exceptions of followings:
1116 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
1117 moved to their own dev sysctl nodes, for example:
1118 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
1119 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
1120 own chardev in the form of "dsp%d.<function>%d", where <function>
1121 is p = playback, r = record and v = virtual, respectively. Users
1122 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
1123 This does not affect those who are using "/dev/dsp".
1126 geom(4)'s gmirror(8) class metadata structure has been
1127 rev'd from v3 to v4. If you update across this point and
1128 your metadata is converted for you, you will not be easily
1129 able to downgrade since the /boot/kernel.old/geom_mirror.ko
1130 kernel module will be unable to read the v4 metadata. You
1131 can resolve this by doing from the loader(8) prompt:
1133 set vfs.root.mountfrom="ufs:/dev/XXX"
1135 where XXX is the root slice of one of the disks that composed
1136 the mirror (i.e.: /dev/ad0s1a). You can then rebuild
1137 the array the same way you built it originally.
1140 The following binaries have been disconnected from the build:
1141 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
1142 and mount_std. The functionality of these programs has been
1143 moved into the mount program. For example, to mount a devfs
1144 filesystem, instead of using mount_devfs, use: "mount -t devfs".
1145 This does not affect entries in /etc/fstab, since entries in
1146 /etc/fstab are always processed with "mount -t fstype".
1149 Support for PCI Message Signalled Interrupts on i386 and amd64
1150 has been added to the kernel and various drivers will soon be
1151 updated to use MSI when it is available. If there are any problems,
1152 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
1153 and 'hw.pci.enable_msix' tunables to 0 in the loader.
1156 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
1157 The lockmgr object layout has been changed as a result of having
1158 a lock_object embedded in it. As a consequence all file system
1159 kernel modules must be re-compiled. The mutex profiling man page
1160 has not yet been updated to reflect this change.
1163 KSE in the kernel has now been made optional and turned on by
1164 default. Use 'nooption KSE' in your kernel config to turn it
1165 off. All kernel modules *must* be recompiled after this change.
1166 There-after, modules from a KSE kernel should be compatible with
1167 modules from a NOKSE kernel due to the temporary padding fields
1168 added to 'struct proc'.
1171 mrouted and its utilities have been removed from the base system.
1174 Some ioctl(2) command codes have changed. Full backward ABI
1175 compatibility is provided if the "options COMPAT_FREEBSD6" is
1176 present in the kernel configuration file. Make sure to add
1177 this option to your kernel config file, or recompile X.Org
1178 and the rest of ports; otherwise they may refuse to work.
1181 tcpslice has been removed from the base system.
1184 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
1185 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
1186 systat needs to be rebuilt.
1189 libpcap updated to v0.9.4 and tcpdump to v3.9.4
1192 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
1193 for IPFIREWALL_FORWARD is now as it was before when it was first
1194 committed and for years after. The behaviour is now ON.
1197 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
1198 Now it can decrypt files created from different architectures.
1199 Unfortunately, it is no longer able to decrypt a cipher text
1200 generated with an older version on 64 bit architectures.
1201 If you have such a file, you need old utility to decrypt it.
1204 The interface version of the i4b kernel part has changed. So
1205 after updating the kernel sources and compiling a new kernel,
1206 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
1207 be rebuilt, and vice versa.
1210 The XBOX kernel now defaults to the nfe(4) driver instead of
1211 the nve(4) driver. Please update your configuration
1215 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
1216 PCnet family of NICs has been removed. The new le(4) driver serves
1217 as an equivalent but cross-platform replacement with the pcn(4)
1218 driver still providing performance-optimized support for the subset
1219 of AMD Am79C971 PCnet-FAST and greater chips as before.
1222 The machdep.* sysctls and the adjkerntz utility have been
1223 modified a bit. The new adjkerntz utility uses the new
1224 sysctl names and sysctlbyname() calls, so it may be impossible
1225 to run an old /sbin/adjkerntz utility in single-user mode
1226 with a new kernel. Replace the `adjkerntz -i' step before
1227 `make installworld' with:
1229 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
1231 and proceed as usual with the rest of the installworld-stage
1232 steps. Otherwise, you risk installing binaries with their
1233 timestamp set several hours in the future, especially if
1234 you are running with local time set to GMT+X hours.
1237 The ip6fw utility has been removed. The behavior provided by
1238 ip6fw has been in ipfw2 for a good while and the rc.d scripts
1239 have been updated to deal with it. There are some rules that
1240 might not migrate cleanly. Use rc.firewall6 as a template to
1244 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
1245 attachments have been removed. Make sure to configure scc(4)
1246 on sparc64. Note also that by default puc(4) will use uart(4)
1247 and not sio(4) for serial ports because interrupt handling has
1248 been optimized for multi-port serial cards and only uart(4)
1249 implements the interface to support it.
1252 The scc(4) driver replaces puc(4) for Serial Communications
1253 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
1254 Z8530. On sparc64, it is advised to add scc(4) to the kernel
1255 configuration to make sure that the serial ports remain
1259 Most world/kernel related NO_* build options changed names.
1260 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
1261 after FreeBSD ports) and should be set in /etc/src.conf
1262 (the src.conf(5) manpage is provided). Full backwards
1263 compatibility is maintained for the time being though it's
1264 highly recommended to start moving old options out of the
1265 system-wide /etc/make.conf file into the new /etc/src.conf
1266 while also properly renaming them. More conversions will
1267 likely follow. Posting to current@:
1269 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
1272 The NETSMBCRYPTO kernel option has been retired because its
1273 functionality is always included in NETSMB and smbfs.ko now.
1276 The TDFX_LINUX kernel option was retired and replaced by the
1277 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
1278 kernel module. Loading it alone should suffice to get 3dfx support
1279 for Linux apps because it will pull in 3dfx.ko and linux.ko through
1283 The 'audit' group was added to support the new auditing functionality
1284 in the base system. Be sure to follow the directions for updating,
1285 including the requirement to run mergemaster -p.
1288 The kernel ABI to file system modules was changed on i386.
1289 Please make sure that your kernel and modules are in sync.
1292 This actually occured some time ago, but installing the kernel
1293 now also installs a bunch of symbol files for the kernel modules.
1294 This increases the size of /boot/kernel to about 67Mbytes. You
1295 will need twice this if you will eventually back this up to kernel.old
1296 on your next install.
1297 If you have a shortage of room in your root partition, you should add
1298 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
1299 to your /etc/make.conf.
1302 libc's malloc implementation has been replaced. This change has the
1303 potential to uncover application bugs that previously went unnoticed.
1304 See the malloc(3) manual page for more details.
1307 The generic netgraph(4) cookie has been changed. If you upgrade
1308 kernel passing this point, you also need to upgrade userland
1309 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
1312 si(4)'s device files now contain the unit number.
1313 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
1316 The kernel ABI was mostly destroyed due to a change in the size
1317 of struct lock_object which is nested in other structures such
1318 as mutexes which are nested in all sorts of other structures.
1319 Make sure your kernel and modules are in sync.
1322 The page coloring algorithm in the VM subsystem was converted
1323 from tuning with kernel options to autotuning. Please remove
1324 any PQ_* option except PQ_NOOPT from your kernel config.
1327 The net80211-related tools in the tools/tools/ath directory
1328 have been moved to tools/tools/net80211 and renamed with a
1329 "wlan" prefix. Scripts that use them should be adjusted
1333 Scripts in the local_startup directories (as defined in
1334 /etc/defaults/rc.conf) that have the new rc.d semantics will
1335 now be run as part of the base system rcorder. If there are
1336 errors or problems with one of these local scripts, it could
1337 cause boot problems. If you encounter such problems, boot in
1338 single user mode, remove that script from the */rc.d directory.
1339 Please report the problem to the port's maintainer, and the
1340 freebsd-ports@freebsd.org mailing list.
1343 The nodev mount option was deprecated in RELENG_6 (where it
1344 was a no-op), and is now unsupported. If you have nodev or dev listed
1345 in /etc/fstab, remove it, otherwise it will result in a mount error.
1348 ABI between ipfw(4) and ipfw(8) has been changed. You need
1349 to rebuild ipfw(8) when rebuilding kernel.
1352 rp(4)'s device files now contain the unit number.
1353 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
1356 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
1357 Its /etc/rc.conf.d configuration file has been `ppp' from
1358 the beginning, and hence there is no need to touch it.
1361 Now most modules get their build-time options from the kernel
1362 configuration file. A few modules still have fixed options
1363 due to their non-conformant implementation, but they will be
1364 corrected eventually. You may need to review the options of
1365 the modules in use, explicitly specify the non-default options
1366 in the kernel configuration file, and rebuild the kernel and
1370 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
1371 to turn polling(4) on your interfaces.
1374 The old bridge(4) implementation was retired. The new
1375 if_bridge(4) serves as a full functional replacement.
1378 The ai_addrlen of a struct addrinfo was changed to a socklen_t
1379 to conform to POSIX-2001. This change broke an ABI
1380 compatibility on 64 bit architecture. You have to recompile
1381 userland programs that use getaddrinfo(3) on 64 bit
1385 RELENG_6 branched here.
1388 The pccard_ifconfig rc.conf variable has been removed and a new
1389 variable, ifconfig_DEFAULT has been introduced. Unlike
1390 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
1391 do not have ifconfig_ifn entries rather than just those in
1392 removable_interfaces.
1395 Some previous versions of PAM have permitted the use of
1396 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
1397 to third party PAM modules in /usr/local/lib. A change has been
1398 made to require the use of absolute paths in order to avoid
1399 ambiguity and dependence on library path configuration, which may
1400 affect existing configurations.
1403 Major changes to network interface API. All drivers must be
1404 recompiled. Drivers not in the base system will need to be
1405 updated to the new APIs.
1408 Changes were made to kinfo_proc in sys/user.h. Please recompile
1409 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
1410 will not behave correctly.
1412 The API and ABI for hwpmc(4) have changed with the addition
1413 of sampling support. Please recompile lib/libpmc(3) and
1414 usr.sbin/{pmcstat,pmccontrol}.
1417 The OpenBSD dhclient was imported in place of the ISC dhclient
1418 and the network interface configuration scripts were updated
1419 accordingly. If you use DHCP to configure your interfaces, you
1420 must now run devd. Also, DNS updating was lost so you will need
1421 to find a workaround if you use this feature.
1423 The '_dhcp' user was added to support the OpenBSD dhclient. Be
1424 sure to run mergemaster -p (like you are supposed to do every time
1428 if_bridge was added to the tree. This has changed struct ifnet.
1429 Please recompile userland and all network related modules.
1432 The n_net of a struct netent was changed to an uint32_t, and
1433 1st argument of getnetbyaddr() was changed to an uint32_t, to
1434 conform to POSIX-2001. These changes broke an ABI
1435 compatibility on 64 bit architecture. With these changes,
1436 shlib major of libpcap was bumped. You have to recompile
1437 userland programs that use getnetbyaddr(3), getnetbyname(3),
1438 getnetent(3) and/or libpcap on 64 bit architecture.
1441 Kernel parsing of extra options on '#!' first lines of shell
1442 scripts has changed. Lines with multiple options likely will
1443 fail after this date. For full details, please see
1444 http://people.freebsd.org/~gad/Updating-20050528.txt
1447 The packet filter (pf) code has been updated to OpenBSD 3.7
1448 Please note the changed anchor syntax and the fact that
1449 authpf(8) now needs a mounted fdescfs(5) to function.
1452 The NO_MIXED_MODE kernel option has been removed from the i386
1453 amd64 platforms as its use has been superceded by the new local
1454 APIC timer code. Any kernel config files containing this option
1458 The on-disk format of LC_CTYPE files was changed to be machine
1459 independent. Please make sure NOT to use NO_CLEAN buildworld
1460 when crossing this point. Crossing this point also requires
1461 recompile or reinstall of all locale depended packages.
1464 The ifi_epoch member of struct if_data has been changed to
1465 contain the uptime at which the interface was created or the
1466 statistics zeroed rather then the wall clock time because
1467 wallclock time may go backwards. This should have no impact
1468 unless an snmp implementation is using this value (I know of
1469 none at this point.)
1472 The acpi_perf and acpi_throttle drivers are now part of the
1473 acpi(4) main module. They are no longer built separately.
1476 The layout of struct image_params has changed. You have to
1477 recompile all compatibility modules (linux, svr4, etc) for use
1478 with the new kernel.
1481 The p4tcc driver has been merged into cpufreq(4). This makes
1482 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
1483 compile in "device cpufreq" to restore this functionality.
1486 The responsibility of recomputing the file system summary of
1487 a SoftUpdates-enabled dirty volume has been transferred to the
1488 background fsck. A rebuild of fsck(8) utility is recommended
1489 if you have updated the kernel.
1491 To get the old behavior (recompute file system summary at mount
1492 time), you can set vfs.ffs.compute_summary_at_mount=1 before
1493 mounting the new volume.
1496 The cpufreq import is complete. As part of this, the sysctls for
1497 acpi(4) throttling have been removed. The power_profile script
1498 has been updated, so you can use performance/economy_cpu_freq in
1499 rc.conf(5) to set AC on/offline cpu frequencies.
1502 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
1503 requires recompiling libnetgraph and userland netgraph utilities.
1506 Support for abbreviated forms of a number of ipfw options is
1507 now deprecated. Warnings are printed to stderr indicating the
1508 correct full form when a match occurs. Some abbreviations may
1509 be supported at a later date based on user feedback. To be
1510 considered for support, abbreviations must be in use prior to
1511 this commit and unlikely to be confused with current key words.
1514 By a popular demand, a lot of NOFOO options were renamed
1515 to NO_FOO (see bsd.compat.mk for a full list). The old
1516 spellings are still supported, but will cause annoying
1517 warnings on stderr. Make sure you upgrade properly (see
1518 the COMMON ITEMS: section later in this file).
1521 Auto-loading of ancillary wlan modules such as wlan_wep has
1522 been temporarily disabled; you need to statically configure
1523 the modules you need into your kernel or explicitly load them
1524 prior to use. Specifically, if you intend to use WEP encryption
1525 with an 802.11 device load/configure wlan_wep; if you want to
1526 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
1527 and wlan_xauth as required.
1530 The behaviour of ppp(8) has changed slightly. If lqr is enabled
1531 (``enable lqr''), older versions would revert to LCP ECHO mode on
1532 negotiation failure. Now, ``enable echo'' is required for this
1533 behaviour. The ppp version number has been bumped to 3.4.2 to
1537 The wlan support has been updated to split the crypto support
1538 into separate modules. For static WEP you must configure the
1539 wlan_wep module in your system or build and install the module
1540 in place where it can be loaded (the kernel will auto-load
1541 the module when a wep key is configured).
1544 The ath driver has been updated to split the tx rate control
1545 algorithm into a separate module. You need to include either
1546 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
1549 Support for systems with an 80386 CPU has been removed. Please
1550 use FreeBSD 5.x or earlier on systems with an 80386.
1553 We have had a hack which would mount the root filesystem
1554 R/W if the device were named 'md*'. As part of the vnode
1555 work I'm doing I have had to remove this hack. People
1556 building systems which use preloaded MD root filesystems
1557 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
1558 their /etc/rc scripts.
1561 FreeBSD 5.3 shipped here.
1564 The size of struct tcpcb has changed again due to the removal
1565 of RFC1644 T/TCP. You have to recompile userland programs that
1566 read kmem for tcp sockets directly (netstat, sockstat, etc.)
1569 The size of struct tcpcb has changed. You have to recompile
1570 userland programs that read kmem for tcp sockets directly
1571 (netstat, sockstat, etc.)
1574 RELENG_5 branched here. For older entries, please see updating
1575 in the RELENG_5 branch.
1581 Avoid using make -j when upgrading. From time to time in the
1582 past there have been problems using -j with buildworld and/or
1583 installworld. This is especially true when upgrading between
1584 "distant" versions (eg one that cross a major release boundary
1585 or several minor releases, or when several months have passed
1586 on the -current branch).
1588 Sometimes, obscure build problems are the result of environment
1589 poisoning. This can happen because the make utility reads its
1590 environment when searching for values for global variables.
1591 To run your build attempts in an "environmental clean room",
1592 prefix all make commands with 'env -i '. See the env(1) manual
1593 page for more details.
1595 When upgrading from one major version to another it is generally
1596 best to upgrade to the latest code in the currently installed branch
1597 first, then do an upgrade to the new branch. This is the best-tested
1598 upgrade path, and has the highest probability of being successful.
1599 Please try this approach before reporting problems with a major
1604 When upgrading the boot ZFS pool to a new version, always follow
1607 1.) recompile and reinstall the ZFS boot loader and boot block
1608 (this is part of "make buildworld" and "make installworld")
1610 2.) update the ZFS boot block on your boot drive
1612 The following example updates the ZFS boot block on the first
1613 partition (freebsd-boot) of a GPT partitioned drive ad0:
1614 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0"
1616 Non-boot pools do not need these updates.
1620 If you are updating from a prior version of FreeBSD (even one just
1621 a few days old), you should follow this procedure. It is the most
1622 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
1624 make kernel-toolchain
1625 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
1626 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
1628 To test a kernel once
1629 ---------------------
1630 If you just want to boot a kernel once (because you are not sure
1631 if it works, or if you want to boot a known bad kernel to provide
1632 debugging information) run
1633 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
1634 nextboot -k testkernel
1636 To just build a kernel when you know that it won't mess you up
1637 --------------------------------------------------------------
1638 This assumes you are already running a 5.X system. Replace
1639 ${arch} with the architecture of your machine (e.g. "i386",
1640 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
1642 cd src/sys/${arch}/conf
1643 config KERNEL_NAME_HERE
1644 cd ../compile/KERNEL_NAME_HERE
1649 If this fails, go to the "To build a kernel" section.
1651 To rebuild everything and install it on the current system.
1652 -----------------------------------------------------------
1653 # Note: sometimes if you are running current you gotta do more than
1654 # is listed here if you are upgrading from a really old current.
1656 <make sure you have good level 0 dumps>
1658 make kernel KERNCONF=YOUR_KERNEL_HERE
1660 <reboot in single user> [3]
1668 To cross-install current onto a separate partition
1669 --------------------------------------------------
1670 # In this approach we use a separate partition to hold
1671 # current's root, 'usr', and 'var' directories. A partition
1672 # holding "/", "/usr" and "/var" should be about 2GB in
1675 <make sure you have good level 0 dumps>
1678 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1679 <maybe newfs current's root partition>
1680 <mount current's root partition on directory ${CURRENT_ROOT}>
1681 make installworld DESTDIR=${CURRENT_ROOT}
1682 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1683 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1684 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
1685 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1686 <reboot into current>
1687 <do a "native" rebuild/install as described in the previous section>
1688 <maybe install compatibility libraries from ports/misc/compat*>
1692 To upgrade in-place from 5.x-stable to current
1693 ----------------------------------------------
1694 <make sure you have good level 0 dumps>
1696 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
1698 <reboot in single user> [3]
1705 Make sure that you've read the UPDATING file to understand the
1706 tweaks to various things you need. At this point in the life
1707 cycle of current, things change often and you are on your own
1708 to cope. The defaults can also change, so please read ALL of
1709 the UPDATING entries.
1711 Also, if you are tracking -current, you must be subscribed to
1712 freebsd-current@freebsd.org. Make sure that before you update
1713 your sources that you have read and understood all the recent
1714 messages there. If in doubt, please track -stable which has
1715 much fewer pitfalls.
1717 [1] If you have third party modules, such as vmware, you
1718 should disable them at this point so they don't crash your
1721 [3] From the bootblocks, boot -s, and then do
1726 adjkerntz -i # if CMOS is wall time
1727 Also, when doing a major release upgrade, it is required that
1728 you boot into single user mode to do the installworld.
1730 [4] Note: This step is non-optional. Failure to do this step
1731 can result in a significant reduction in the functionality of the
1732 system. Attempting to do it by hand is not recommended and those
1733 that pursue this avenue should read this file carefully, as well
1734 as the archives of freebsd-current and freebsd-hackers mailing lists
1735 for potential gotchas.
1737 [5] Usually this step is a noop. However, from time to time
1738 you may need to do this if you get unknown user in the following
1739 step. It never hurts to do it all the time. You may need to
1740 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1741 install) after the buildworld before this step if you last updated
1742 from current before 20020224 or from -stable before 20020408.
1744 [8] In order to have a kernel that can run the 4.x binaries
1745 needed to do an installworld, you must include the COMPAT_FREEBSD4
1746 option in your kernel. Failure to do so may leave you with a system
1747 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
1748 is required to run the 5.x binaries on more recent kernels.
1750 Make sure that you merge any new devices from GENERIC since the
1751 last time you updated your kernel config file.
1753 [9] When checking out sources, you must include the -P flag to have
1754 cvs prune empty directories.
1756 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1757 "?=" instead of the "=" assignment operator, so that buildworld can
1758 override the CPUTYPE if it needs to.
1760 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1761 not on the command line, or in /etc/make.conf. buildworld will
1762 warn if it is improperly defined.
1765 This file contains a list, in reverse chronological order, of major
1766 breakages in tracking -current. Not all things will be listed here,
1767 and it only starts on October 16, 2004. Updating files can found in
1768 previous releases if your system is older than this.
1770 Copyright information:
1772 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
1774 Redistribution, publication, translation and use, with or without
1775 modification, in full or in part, in any form or format of this
1776 document are permitted without further permission from the author.
1778 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1779 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1780 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1781 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1782 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1783 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1784 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1785 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1786 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1787 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1788 POSSIBILITY OF SUCH DAMAGE.
1790 If you find this document useful, and you want to, you may buy the
1793 Contact Warner Losh if you have any questions about your use of