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 20120104: p8 FreeBSD-EN-12:01.freebsd-update
19 Extend the character set accepted by freebsd-update(8) in file
20 names in order to allow upgrades to FreeBSD 9.0-RELEASE.
22 20111223: p7 FreeBSD-SA-11:06.bind, FreeBSD-SA-11:07.chroot
23 FreeBSD-SA-11:08.telnetd, FreeBSD-SA-11:09.pam_ssh
25 Fix a problem whereby a corrupt DNS record can cause named to crash.
28 Add an API for alerting internal libc routines to the presence of
29 "unsafe" paths post-chroot, and use it in ftpd. [11:07]
31 Fix a buffer overflow in telnetd. [11:08]
33 Make pam_ssh ignore unpassphrased keys unless the "nullok" option is
36 Add sanity checking of service names in pam_start. [11:10]
38 20111004: p6 FreeBSD-SA-11:05.unix (revised)
39 Fix a bug in UNIX socket handling in the linux emulator which was
40 exposed by the security fix in FreeBSD-SA-11:05.unix.
42 20110928: p5 FreeBSD-SA-11:04.compress, FreeBSD-SA-11:05.unix
43 Fix handling of corrupt compress(1)ed data. [11:04]
45 Add missing length checks on unix socket addresses. [11:05]
47 20110528: p4 FreeBSD-SA-11:02.bind
48 Fix BIND remote DoS with large RRSIG RRsets and negative
51 20110420: p3 FreeBSD-SA-11:01.mountd
52 Fix CIDR parsing bug in mountd ACLs.
54 20101129: p2 FreeBSD-SA-10:10.openssl
55 Fix OpenSSL multiple vulnerabilities.
57 20100920: p1 FreeBSD-SA-10:08.bzip2
58 Fix an integer overflow in RLE length parsing when decompressing
64 20100713: FreeBSD-SA-10:07.mbuf
65 Correctly copy the M_RDONLY flag when duplicating a reference
66 to an mbuf external buffer.
69 The config(8) command has been updated to maintain compatibility
70 with config files from 8.0-RELEASE. You will need a new version
71 of config to build kernels (this version can be used from 8.0-RELEASE
72 forward). The buildworld target will generate it, so following
73 the instructions in this file for updating will work glitch-free.
74 Merely doing a make buildkernel without first doing a make buildworld
75 (or kernel-toolchain), or attempting to build a kernel using
76 traidtional methods will generate a config version warning, indicating
80 The rc.firewall and rc.firewall6 were unified, and
81 rc.firewall6 and rc.d/ip6fw were removed.
82 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc
83 variables are obsoleted. Instead, the following new rc
84 variables are added to rc.d/ipfw:
86 firewall_client_net_ipv6, firewall_simple_iif_ipv6,
87 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6,
88 firewall_simple_onet_ipv6
90 The meanings correspond to the relevant IPv4 variables.
93 COMPAT_IA32 has been added as an alias for COMPAT_FREEBSD32. A new
94 version of config(8) is required. The error message when you hit this
95 condition is confusing (COMPAT_FREEBSD32 duplicate option), when it
96 should really say "your config is too old to compile this new kernel."
99 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32
100 to allow 32-bit compatibility on non-x86 platforms. All kernel
101 configurations on amd64 and ia64 platforms using these options must
102 be modified accordingly.
105 Introduce the kernel thread "deadlock resolver" (which can be enabled
106 via the DEADLKRES option, see NOTES for more details) and the
107 sleepq_type() function for sleepqueues.
113 802.11s D3.03 support was committed. This is incompatible with
114 the previous code, which was based on D3.0.
117 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
118 mount(8) and -a option for df(1) to see them.
121 Remove the option STOP_NMI. The default action is now to use NMI
122 only for KDB via the newly introduced function stop_cpus_hard()
123 and maintain stop_cpus() to just use a normal IPI_STOP on ia32
130 Bump the shared library version numbers for all libraries that
131 do not use symbol versioning as part of the 8.0-RELEASE cycle.
132 Bump __FreeBSD_version to 800105.
135 Due to changes in the implementation of virtual network stack
136 support, all network-related kernel modules must be recompiled.
137 As this change breaks the ABI, bump __FreeBSD_version to 800104.
140 The TOE interface to the TCP syncache has been modified to remove struct
141 tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. The
142 cxgb driver is the only TOE consumer affected by this change, and needs
143 to be recompiled along with the kernel. As this change breaks the ABI,
144 bump __FreeBSD_version to 800103.
147 Padding has been added to struct tcpcb, sackhint and tcpstat in
148 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
149 maintainig the ABI. However, this change breaks the ABI, so bump
150 __FreeBSD_version to 800102. User space tools that rely on the size of
151 any of these structs (e.g. sockstat) need to be recompiled.
154 The NFS_LEGACYRPC option has been removed along with the old
155 kernel RPC implementation that this option selected. Kernel
156 configurations may need to be adjusted.
159 The network interface device nodes at /dev/net/<interface> have
160 been removed. All ioctl operations can be performed the normal
161 way using routing sockets. The kqueue functionality can
162 generally be replaced with routing sockets.
165 The documentation from the FreeBSD Documentation Project
166 (Handbook, FAQ, etc.) is now installed via packages by
167 sysinstall(8) and under the /usr/local/share/doc/freebsd
168 directory instead of /usr/share/doc.
171 The ABI of various structures related to the SYSV IPC API have
172 been changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43
173 kernel options now all require COMPAT_FREEBSD7.
174 Bump __FreeBSD_version to 800100.
177 Layout of struct vnet has changed as routing related variables
178 were moved to their own Vimage module. Modules need to be
179 recompiled. Bump __FreeBSD_version to 800099.
182 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023
183 and 1024 respectively. As long as no more than 16 groups per
184 process are used, no changes should be visible. When more
185 than 16 groups are used, old binaries may fail if they call
186 getgroups() or getgrouplist() with statically sized storage.
187 Recompiling will work around this, but applications should be
188 modified to use dynamically allocated storage for group arrays
189 as POSIX.1-2008 does not cap an implementation's number of
190 supported groups at NGROUPS_MAX+1 as previous versions did.
192 NFS and portalfs mounts may also be affected as the list of
193 groups is truncated to 16. Users of NFS who use more than 16
194 groups, should take care that negative group permissions are not
195 used on the exported file systems as they will not be reliable
196 unless a GSSAPI based authentication method is used.
199 The compiling option ADAPTIVE_LOCKMGRS has been introduced.
200 This option compiles in the support for adaptive spinning for lockmgrs
201 which want to enable it. The lockinit() function now accepts the
202 flag LK_ADAPTIVE in order to make the lock object subject to
203 adaptive spinning when both held in write and read mode.
206 The layout of the structure returned by IEEE80211_IOC_STA_INFO
207 has changed. User applications that use this ioctl need to be
211 The layout of struct thread has changed. Kernel and modules
215 The layout of structs ifnet, domain, protosw and vnet_net has
216 changed. Kernel modules need to be rebuilt.
217 Bump __FreeBSD_version to 800097.
220 window(1) has been removed from the base system. It can now be
221 installed from ports. The port is called misc/window.
224 The way we are storing and accessing `routing table' entries
225 has changed. Programs reading the FIB, like netstat, need to
229 A new netisr implementation has been added for FreeBSD 8. Network
230 file system modules, such as igmp, ipdivert, and others, should be
232 Bump __FreeBSD_version to 800096.
235 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose
239 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
240 Bump __FreeBSD_version to 800094.
243 Add mnt_xflag field to 'struct mount'. File system modules
245 Bump __FreeBSD_version to 800093.
248 The compiling option ADAPTIVE_SX has been retired while it has been
249 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
250 The KPI for sx_init_flags() changes as accepting flags:
251 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag
252 has been introduced in order to handle the reversed logic.
253 Bump __FreeBSD_version to 800092.
256 Add support for hierarchical jails. Remove global securelevel.
257 Bump __FreeBSD_version to 800091.
260 The layout of struct vnet_net has changed, therefore modules
262 Bump __FreeBSD_version to 800090.
265 The newly imported zic(8) produces a new format in the
266 output. Please run tzsetup(8) to install the newly created
267 data to /etc/localtime.
270 The sysctl tree for the usb stack has renamed from hw.usb2.* to
271 hw.usb.* and is now consistent again with previous releases.
274 802.11 monitor mode support was revised and driver api's
275 were changed. Drivers dependent on net80211 now support
276 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No
277 user-visible data structures were changed but applications
278 that use DLT_IEEE802_11 may require changes.
279 Bump __FreeBSD_version to 800088.
282 The layout of the following structs has changed: sysctl_oid,
283 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
284 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
285 panics may be experienced. World rebuild is required for
286 correctly checking networking state from userland.
287 Bump __FreeBSD_version to 800085.
290 MLDv2 and Source-Specific Multicast (SSM) have been merged
291 to the IPv6 stack. VIMAGE hooks are in but not yet used.
292 The implementation of SSM within FreeBSD's IPv6 stack closely
293 follows the IPv4 implementation.
295 For kernel developers:
297 * The most important changes are that the ip6_output() and
298 ip6_input() paths no longer take the IN6_MULTI_LOCK,
299 and this lock has been downgraded to a non-recursive mutex.
301 * As with the changes to the IPv4 stack to support SSM, filtering
302 of inbound multicast traffic must now be performed by transport
303 protocols within the IPv6 stack. This does not apply to TCP and
304 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
306 * The KPIs used by IPv6 multicast are similar to those used by
307 the IPv4 stack, with the following differences:
308 * im6o_mc_filter() is analogous to imo_multicast_filter().
309 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
310 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
311 * IN6_LOOKUP_MULTI() has been deprecated and removed.
312 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
313 for MLDv1 have an additional 'timer' argument which is used to
314 jitter the initial membership report for the solicited-node
315 multicast membership on-link.
316 * This is not strictly needed for MLDv2, which already jitters
317 its report transmissions. However, the 'timer' argument is
318 preserved in case MLDv1 is active on the interface.
320 * The KAME linked-list based IPv6 membership implementation has
321 been refactored to use a vector similar to that used by the IPv4
323 Code which maintains a list of its own multicast memberships
324 internally, e.g. carp, has been updated to reflect the new
327 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
328 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
329 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
330 implementation constraint which needs to be addressed in HEAD.
332 For application developers:
334 * The changes are broadly similar to those made for the IPv4
337 * The use of IPv4 and IPv6 multicast socket options on the same
338 socket, using mapped addresses, HAS NOT been tested or supported.
340 * There are a number of issues with the implementation of various
341 IPv6 multicast APIs which need to be resolved in the API surface
342 before the implementation is fully compatible with KAME userland
343 use, and these are mostly to do with interface index treatment.
345 * The literature available discusses the use of either the delta / ASM
346 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
347 using setsourcefilter(3)/getsourcefilter(3). For more information
348 please refer to RFC 3768, 'Socket Interface Extensions for
349 Multicast Source Filters'.
351 * Applications which use the published RFC 3678 APIs should be fine.
353 For systems administrators:
355 * The mtest(8) utility has been refactored to support IPv6, in
356 addition to IPv4. Interface addresses are no longer accepted
357 as arguments, their names must be used instead. The utility
358 will map the interface name to its first IPv4 address as
359 returned by getifaddrs(3).
361 * The ifmcstat(8) utility has also been updated to print the MLDv2
362 endpoint state and source filter lists via sysctl(3).
364 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
365 loopback of IPv6 multicast datagrams by default; it defaults to 1
366 to preserve the existing behaviour. Disabling multicast loopback is
367 recommended for optimal system performance.
369 * The IPv6 MROUTING code has been changed to examine this sysctl
370 instead of attempting to perform a group lookup before looping
371 back forwarded datagrams.
373 Bump __FreeBSD_version to 800084.
376 Implement low-level Bluetooth HCI API.
377 Bump __FreeBSD_version to 800083.
380 The layout of struct malloc_type, used by modules to register new
381 memory allocation types, has changed. Most modules will need to
382 be rebuilt or panics may be experienced.
383 Bump __FreeBSD_version to 800081.
386 Anticipate overflowing inp_flags - add inp_flags2.
387 This changes most offsets in inpcb, so checking v4 connection
388 state will require a world rebuild.
389 Bump __FreeBSD_version to 800080.
392 Add an llentry to struct route and struct route_in6. Modules
393 embedding a struct route will need to be recompiled.
394 Bump __FreeBSD_version to 800079.
397 The size of rt_metrics_lite and by extension rtentry has changed.
398 Networking administration apps will need to be recompiled.
399 The route command now supports show as an alias for get, weighting
400 of routes, sticky and nostick flags to alter the behavior of stateful
402 Bump __FreeBSD_version to 800078.
405 Do not use Giant for kbdmux(4) locking. This is wrong and
406 apparently causing more problems than it solves. This will
407 re-open the issue where interrupt handlers may race with
408 kbdmux(4) in polling mode. Typical symptoms include (but
409 not limited to) duplicated and/or missing characters when
410 low level console functions (such as gets) are used while
411 interrupts are enabled (for example geli password prompt,
412 mountroot prompt etc.). Disabling kbdmux(4) may help.
415 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
416 kernel modules referencing any of the above need to be recompiled.
417 Bump __FreeBSD_version to 800075.
420 GEOM_PART has become the default partition slicer for storage devices,
421 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
422 introduces some changes:
424 MSDOS/EBR: the devices created from MSDOS extended partition entries
425 (EBR) can be named differently than with GEOM_MBR and are now symlinks
426 to devices with offset-based names. fstabs may need to be modified.
428 BSD: the "geometry does not match label" warning is harmless in most
429 cases but it points to problems in file system misalignment with
430 disk geometry. The "c" partition is now implicit, covers the whole
431 top-level drive and cannot be (mis)used by users.
433 General: Kernel dumps are now not allowed to be written to devices
434 whose partition types indicate they are meant to be used for file
435 systems (or, in case of MSDOS partitions, as something else than
438 Most of these changes date approximately from 200812.
441 The uscanner(4) driver has been removed from the kernel. This follows
442 Linux removing theirs in 2.6 and making libusb the default interface
446 The multicast forwarding code has been cleaned up. netstat(1)
447 only relies on KVM now for printing bandwidth upcall meters.
448 The IPv4 and IPv6 modules are split into ip_mroute_mod and
449 ip6_mroute_mod respectively. The config(5) options for statically
450 compiling this code remain the same, i.e. 'options MROUTING'.
453 Support for the IFF_NEEDSGIANT network interface flag has been
454 removed, which means that non-MPSAFE network device drivers are no
455 longer supported. In particular, if_ar, if_sr, and network device
456 drivers from the old (legacy) USB stack can no longer be built or
460 POSIX.1 Native Language Support (NLS) has been enabled in libc and
461 a bunch of new language catalog files have also been added.
462 This means that some common libc messages are now localized and
463 they depend on the LC_MESSAGES environmental variable.
466 The k8temp(4) driver has been renamed to amdtemp(4) since
467 support for K10 and K11 CPU families was added.
470 IGMPv3 and Source-Specific Multicast (SSM) have been merged
471 to the IPv4 stack. VIMAGE hooks are in but not yet used.
473 For kernel developers, the most important changes are that the
474 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
475 and this lock has been downgraded to a non-recursive mutex.
477 Transport protocols (UDP, Raw IP) are now responsible for filtering
478 inbound multicast traffic according to group membership and source
479 filters. The imo_multicast_filter() KPI exists for this purpose.
480 Transports which do not use multicast (SCTP, TCP) already reject
481 multicast by default. Forwarding and receive performance may improve
482 as a mutex acquisition is no longer needed in the ip_input()
483 low-level input path. in_addmulti() and in_delmulti() are shimmed
484 to new KPIs which exist to support SSM in-kernel.
486 For application developers, it is recommended that loopback of
487 multicast datagrams be disabled for best performance, as this
488 will still cause the lock to be taken for each looped-back
489 datagram transmission. The net.inet.ip.mcast.loop sysctl may
490 be tuned to 0 to disable loopback by default; it defaults to 1
491 to preserve the existing behaviour.
493 For systems administrators, to obtain best performance with
494 multicast reception and multiple groups, it is always recommended
495 that a card with a suitably precise hash filter is used. Hash
496 collisions will still result in the lock being taken within the
497 transport protocol input path to check group membership.
499 If deploying FreeBSD in an environment with IGMP snooping switches,
500 it is recommended that the net.inet.igmp.sendlocal sysctl remain
501 enabled; this forces 224.0.0.0/24 group membership to be announced
504 The size of 'struct igmpstat' has changed; netstat needs to be
505 recompiled to reflect this.
506 Bump __FreeBSD_version to 800070.
509 libusb20.so.1 is now installed as libusb.so.1 and the ports system
510 updated to use it. This requires a buildworld/installworld in order to
511 update the library and dependencies (usbconfig, etc). Its advisable to
512 rebuild all ports which uses libusb. More specific directions are given
513 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
514 libusb are no longer required and can be removed.
517 A workaround is committed to allow the creation of System V shared
518 memory segment of size > 2 GB on the 64-bit architectures.
519 Due to a limitation of the existing ABI, the shm_segsz member
520 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
521 wrong for large segments. Note that limits must be explicitly
522 raised to allow such segments to be created.
525 The layout of struct ifnet has changed, requiring a rebuild of all
526 network device driver modules.
529 The /dev handling for the new USB stack has changed, a
530 buildworld/installworld is required for libusb20.
533 The new USB2 stack has now been permanently moved in and all kernel and
534 module names reverted to their previous values (eg, usb, ehci, ohci,
535 ums, ...). The old usb stack can be compiled in by prefixing the name
536 with the letter 'o', the old usb modules have been removed.
537 Updating entry 20090216 for xorg and 20090215 for libmap may still
541 The rc.conf(5) option if_up_delay has been renamed to
542 defaultroute_delay to better reflect its purpose. If you have
543 customized this setting in /etc/rc.conf you need to update it to
547 xorg 7.4 wants to configure its input devices via hald which does not
548 yet work with USB2. If the keyboard/mouse does not work in xorg then
550 Option "AllowEmptyInput" "off"
551 to your ServerLayout section. This will cause X to use the configured
552 kbd and mouse sections from your xorg.conf.
555 The GENERIC kernels for all architectures now default to the new USB2
556 stack. No kernel config options or code have been removed so if a
557 problem arises please report it and optionally revert to the old USB
558 stack. If you are loading USB kernel modules or have a custom kernel
559 that includes GENERIC then ensure that usb names are also changed over,
560 eg uftdi -> usb2_serial_ftdi.
562 Older programs linked against the ports libusb 0.1 need to be
563 redirected to the new stack's libusb20. /etc/libmap.conf can
565 # Map old usb library to new one for usb2 stack
566 libusb-0.1.so.8 libusb20.so.1
569 All USB ethernet devices now attach as interfaces under the name ueN
570 (eg. ue0). This is to provide a predictable name as vendors often
571 change usb chipsets in a product without notice.
574 The ichsmb(4) driver has been changed to require SMBus slave
575 addresses be left-justified (xxxxxxx0b) rather than right-justified.
576 All of the other SMBus controller drivers require left-justified
577 slave addresses, so this change makes all the drivers provide the
581 INET6 statistics (struct ip6stat) was updated.
582 netstat(1) needs to be recompiled.
585 NTFS has been removed from GENERIC kernel on amd64 to match
586 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
587 will load ntfs.ko module automatically when NTFS support is
588 actually needed, unless ntfs.ko is not installed or security
589 level prohibits loading kernel modules. If either is the case,
590 "options NTFS" has to be added into kernel config.
593 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
594 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
595 800061. User space tools that rely on the size of struct tcpcb in
596 tcp_var.h (e.g. sockstat) need to be recompiled.
599 ng_tty(4) module updated to match the new TTY subsystem.
600 Due to API change, user-level applications must be updated.
601 New API support added to mpd5 CVS and expected to be present
602 in next mpd5.3 release.
605 With __FreeBSD_version 800060 the makefs tool is part of
606 the base system (it was a port).
609 The afdata and ifnet locks have been changed from mutexes to
610 rwlocks, network modules will need to be re-compiled.
613 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
614 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
615 The new code reduced struct rtentry{} by 16 bytes on 32-bit
616 architecture and 40 bytes on 64-bit architecture. The userland
617 applications "arp" and "ndp" have been updated accordingly.
618 The output from "netstat -r" shows only routing entries and
619 none of the L2 information.
622 __FreeBSD_version 800057 marks the switchover from the
623 binary ath hal to source code. Users must add the line:
625 options AH_SUPPORT_AR5416
627 to their kernel config files when specifying:
631 The ath_hal module no longer exists; the code is now compiled
632 together with the driver in the ath module. It is now
633 possible to tailor chip support (i.e. reduce the set of chips
634 and thereby the code size); consult ath_hal(4) for details.
637 __FreeBSD_version 800054 adds memory barriers to
638 <machine/atomic.h>, new interfaces to ifnet to facilitate
639 multiple hardware transmit queues for cards that support
640 them, and a lock-less ring-buffer implementation to
641 enable drivers to more efficiently manage queueing of
645 A new version of ZFS (version 13) has been merged to -HEAD.
646 This version has zpool attribute "listsnapshots" off by
647 default, which means "zfs list" does not show snapshots,
648 and is the same as Solaris behavior.
651 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
654 The uhci, ohci, ehci and slhci USB Host controller drivers have
655 been put into separate modules. If you load the usb module
656 separately through loader.conf you will need to load the
657 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
658 controller add the following to loader.conf:
664 The ABI used by the PMC toolset has changed. Please keep
665 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
669 atapci kernel module now includes only generic PCI ATA
670 driver. AHCI driver moved to ataahci kernel module.
671 All vendor-specific code moved into separate kernel modules:
672 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
673 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
674 atamarvell, atamicron, atanational, atanetcell, atanvidia,
675 atapromise, ataserverworks, atasiliconimage, atasis, atavia
678 The TTY subsystem of the kernel has been replaced by a new
679 implementation, which provides better scalability and an
680 improved driver model. Most common drivers have been migrated to
681 the new TTY subsystem, while others have not. The following
682 drivers have not yet been ported to the new TTY layer:
685 cy, digi, rc, rp, sio
691 ng_h4, ng_tty, ppp, sl, snp
693 Adding these drivers to your kernel configuration file shall
694 cause compilation to fail.
697 ntpd has been upgraded to 4.2.4p5.
700 OpenSSH has been upgraded to 5.1p1.
702 For many years, FreeBSD's version of OpenSSH preferred DSA
703 over RSA for host and user authentication keys. With this
704 upgrade, we've switched to the vendor's default of RSA over
705 DSA. This may cause upgraded clients to warn about unknown
706 host keys even for previously known hosts. Users should
707 follow the usual procedure for verifying host keys before
708 accepting the RSA key.
710 This can be circumvented by setting the "HostKeyAlgorithms"
711 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
714 Please note that the sequence of keys offered for
715 authentication has been changed as well. You may want to
716 specify IdentityFile in a different order to revert this
720 The sio(4) driver has been removed from the i386 and amd64
721 kernel configuration files. This means uart(4) is now the
722 default serial port driver on those platforms as well.
724 To prevent collisions with the sio(4) driver, the uart(4) driver
725 uses different names for its device nodes. This means the
726 onboard serial port will now most likely be called "ttyu0"
727 instead of "ttyd0". You may need to reconfigure applications to
728 use the new device names.
730 When using the serial port as a boot console, be sure to update
731 /boot/device.hints and /etc/ttys before booting the new kernel.
732 If you forget to do so, you can still manually specify the hints
733 at the loader prompt:
735 set hint.uart.0.at="isa"
736 set hint.uart.0.port="0x3F8"
737 set hint.uart.0.flags="0x10"
738 set hint.uart.0.irq="4"
742 The gpt(8) utility has been removed. Use gpart(8) to partition
746 The version that Linuxulator emulates was changed from 2.4.2
747 to 2.6.16. If you experience any problems with Linux binaries
748 please try to set sysctl compat.linux.osrelease to 2.4.2 and
749 if it fixes the problem contact emulation mailing list.
752 ISDN4BSD (I4B) was removed from the src tree. You may need to
753 update a your kernel configuration and remove relevant entries.
756 I have checked in code to support multiple routing tables.
757 See the man pages setfib(1) and setfib(2).
758 This is a hopefully backwards compatible version,
759 but to make use of it you need to compile your kernel
760 with options ROUTETABLES=2 (or more up to 16).
763 The 802.11 wireless support was redone to enable multi-bss
764 operation on devices that are capable. The underlying device
765 is no longer used directly but instead wlanX devices are
766 cloned with ifconfig. This requires changes to rc.conf files.
768 ifconfig_ath0="WPA DHCP"
771 ifconfig_wlan0="WPA DHCP"
772 see rc.conf(5) for more details. In addition, mergemaster of
773 /etc/rc.d is highly recommended. Simultaneous update of userland
774 and kernel wouldn't hurt either.
776 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
777 modules were merged into the base wlan module. All references
778 to these modules (e.g. in kernel config files) must be removed.
781 psm(4) has gained write(2) support in native operation level.
782 Arbitrary commands can be written to /dev/psm%d and status can
783 be read back from it. Therefore, an application is responsible
784 for status validation and error recovery. It is a no-op in
785 other operation levels.
788 Support for KSE threading has been removed from the kernel. To
789 run legacy applications linked against KSE libmap.conf may
790 be used. The following libmap.conf may be used to ensure
791 compatibility with any prior release:
793 libpthread.so.1 libthr.so.1
794 libpthread.so.2 libthr.so.2
795 libkse.so.3 libthr.so.3
798 The layout of struct vmspace has changed. This affects libkvm
799 and any executables that link against libkvm and use the
800 kvm_getprocs() function. In particular, but not exclusively,
801 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
802 The effects are minimal, but it's advisable to upgrade world
806 The latest em driver no longer has support in it for the
807 82575 adapter, this is now moved to the igb driver. The
808 split was done to make new features that are incompatible
809 with older hardware easier to do.
812 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
813 likewise the kernel option is now GEOM_LINUX_LVM.
816 The default NFS mount mode has changed from UDP to TCP for
817 increased reliability. If you rely on (insecurely) NFS
818 mounting across a firewall you may need to update your
822 Belatedly note the addition of m_collapse for compacting
826 The fts(3) structures have been changed to use adequate
827 integer types for their members and so to be able to cope
828 with huge file trees. The old fts(3) ABI is preserved
829 through symbol versioning in libc, so third-party binaries
830 using fts(3) should still work, although they will not take
831 advantage of the extended types. At the same time, some
832 third-party software might fail to build after this change
833 due to unportable assumptions made in its source code about
834 fts(3) structure members. Such software should be fixed
835 by its vendor or, in the worst case, in the ports tree.
836 FreeBSD_version 800015 marks this change for the unlikely
837 case that a portable fix is impossible.
840 To upgrade to -current after this date, you must be running
841 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
842 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
845 The ADAPTIVE_GIANT kernel option has been retired because its
846 functionality is the default now.
849 The AT keyboard emulation of sunkbd(4) has been turned on
850 by default. In order to make the special symbols of the Sun
851 keyboards driven by sunkbd(4) work under X these now have
852 to be configured the same way as Sun USB keyboards driven
853 by ukbd(4) (which also does AT keyboard emulation), f.e.:
855 Option "XkbLayout" "us"
856 Option "XkbRules" "xorg"
857 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
860 It has been decided that it is desirable to provide ABI
861 backwards compatibility to the FreeBSD 4/5/6 versions of the
862 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
863 broken with the introduction of PCI domain support (see the
864 20070930 entry). Unfortunately, this required the ABI of
865 PCIOCGETCONF to be broken again in order to be able to
866 provide backwards compatibility to the old version of that
867 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
868 again. As for prominent ports this affects neither pciutils
869 nor xorg-server this time, the hal port needs to be rebuilt
873 The misnamed kthread_create() and friends have been renamed
874 to kproc_create() etc. Many of the callers already
876 I will return kthread_create() and friends in a while
877 with implementations that actually create threads, not procs.
878 Renaming corresponds with version 800002.
884 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
885 WITHOUT_LIBTHR are set.
888 The PCI code has been made aware of PCI domains. This means that
889 the location strings as used by pciconf(8) etc are now in the
890 following format: pci<domain>:<bus>:<device>[:<function>]. It
891 also means that consumers of <sys/pciio.h> potentially need to
892 be recompiled; this includes the hal and xorg-server ports.
895 The caching daemon (cached) was renamed to nscd. nscd.conf
896 configuration file should be used instead of cached.conf and
897 nscd_enable, nscd_pidfile and nscd_flags options should be used
898 instead of cached_enable, cached_pidfile and cached_flags in
902 The getfacl(1) utility now prints owning user and group name
903 instead of owning uid and gid in the three line comment header.
904 This is the same behavior as getfacl(1) on Solaris and Linux.
907 The new IPsec code is now compiled in using the IPSEC option. The
908 IPSEC option now requires "device crypto" be defined in your kernel
909 configuration. The FAST_IPSEC kernel option is now deprecated.
912 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
913 note the changed syntax - keep state is now on by default. Also
914 note the fact that ftp-proxy(8) has been changed from bottom up and
915 has been moved from libexec to usr/sbin. Changes in the ALTQ
916 handling also affect users of IPFW's ALTQ capabilities.
919 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
920 only IPsec supported by FreeBSD. The new IPsec stack
921 supports both IPv4 and IPv6. The kernel option will change
922 after the code changes have settled in. For now the kernel
923 option IPSEC is deprecated and FAST_IPSEC is the only option, that
924 will change after some settling time.
927 The wicontrol(8) utility has been removed from the base system. wi(4)
928 cards should be configured using ifconfig(8), see the man page for more
932 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
933 instead of the nve(4) driver. Please update your configuration
937 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
938 database if it is missing or older than the aliases file. If
939 desired, set the new rc.conf option sendmail_rebuild_aliases
940 to "YES" to restore that functionality.
943 The IPv4 multicast socket code has been considerably modified, and
944 moved to the file sys/netinet/in_mcast.c. Initial support for the
945 RFC 3678 Source-Specific Multicast Socket API has been added to
946 the IPv4 network stack.
948 Strict multicast and broadcast reception is now the default for
949 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
950 has now been removed.
952 The RFC 1724 hack for interface selection has been removed; the use
953 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
954 been added to replace it. Consumers such as routed will soon be
955 updated to reflect this.
957 These changes affect users who are running routed(8) or rdisc(8)
958 from the FreeBSD base system on point-to-point or unnumbered
962 The net80211 layer has changed significantly and all wireless
963 drivers that depend on it need to be recompiled. Further these
964 changes require that any program that interacts with the wireless
965 support in the kernel be recompiled; this includes: ifconfig,
966 wpa_supplicant, hostapd, and wlanstats. Users must also, for
967 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
968 if they use modules for wireless support. These modules implement
969 scanning support for station and ap modes, respectively. Failure
970 to load the appropriate module before marking a wireless interface
971 up will result in a message to the console and the device not
975 The pam_nologin(8) module ceases to provide an authentication
976 function and starts providing an account management function.
977 Consequent changes to /etc/pam.d should be brought in using
978 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
979 need manual editing as follows. Locate this line (or similar):
981 auth required pam_nologin.so no_warn
983 and change it according to this example:
985 account required pam_nologin.so no_warn
987 That is, the first word needs to be changed from "auth" to
988 "account". The new line can be moved to the account section
989 within the file for clarity. Not updating pam.conf(5) files
990 will result in nologin(5) ignored by the respective services.
993 The ether_ioctl() function has been synchronized with ioctl(2)
994 and ifnet.if_ioctl. Due to that, the size of one of its arguments
995 has changed on 64-bit architectures. All kernel modules using
996 ether_ioctl() need to be rebuilt on such architectures.
999 Improved INCLUDE_CONFIG_FILE support has been introduced to the
1000 config(8) utility. In order to take advantage of this new
1001 functionality, you are expected to recompile and install
1002 src/usr.sbin/config. If you don't rebuild config(8), and your
1003 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
1004 build will be broken because of a missing "kernconfstring"
1008 Symbol versioning is enabled by default. To disable it, use
1009 option WITHOUT_SYMVER. It is not advisable to attempt to
1010 disable symbol versioning once it is enabled; your installworld
1011 will break because a symbol version-less libc will get installed
1012 before the install tools. As a result, the old install tools,
1013 which previously had symbol dependencies to FBSD_1.0, will fail
1014 because the freshly installed libc will not have them.
1016 The default threading library (providing "libpthread") has been
1017 changed to libthr. If you wish to have libkse as your default,
1018 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
1021 The ABI breakage in sendmail(8)'s libmilter has been repaired
1022 so it is no longer necessary to recompile mail filters (aka,
1023 milters). If you recompiled mail filters after the 20070408
1024 note, it is not necessary to recompile them again.
1027 The new trunk(4) driver has been renamed to lagg(4) as it better
1028 reflects its purpose. ifconfig will need to be recompiled.
1031 sendmail(8) has been updated to version 8.14.1. Mail filters
1032 (aka, milters) compiled against the libmilter included in the
1033 base operating system should be recompiled.
1036 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
1037 In order to use them one must agree to the respective LICENSE in
1038 share/doc/legal and define legal.intel_<name>.license_ack=1 via
1039 loader.conf(5) or kenv(1). Make sure to deinstall the now
1040 deprecated modules from the respective firmware ports.
1043 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
1044 were removed from FreeBSD's libc. These originally came from INRIA
1045 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
1046 deprecated in previous releases.
1047 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
1048 replace it as a more portable (and re-entrant) API.
1051 To support interrupt filtering a modification to the newbus API
1052 has occurred, ABI was broken and __FreeBSD_version was bumped
1053 to 700031. Please make sure that your kernel and modules are in
1054 sync. For more info:
1055 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
1058 The IPv6 multicast forwarding code may now be loaded into GENERIC
1059 kernels by loading the ip_mroute.ko module. This is built into the
1060 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
1061 set; see src.conf(5) for more information.
1064 The output of netstat -r has changed. Without -n, we now only
1065 print a "network name" without the prefix length if the network
1066 address and mask exactly match a Class A/B/C network, and an entry
1067 exists in the nsswitch "networks" map.
1068 With -n, we print the full unabbreviated CIDR network prefix in
1069 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
1070 This change is in preparation for changes such as equal-cost
1071 multipath, and to more generally assist operational deployment
1072 of FreeBSD as a modern IPv4 router.
1075 PIM has been turned on by default in the IPv4 multicast
1076 routing code. The kernel option 'PIM' has now been removed.
1077 PIM is now built by default if option 'MROUTING' is specified.
1078 It may now be loaded into GENERIC kernels by loading the
1079 ip_mroute.ko module.
1082 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
1083 has been removed. Its functionality may be achieved by explicitly
1084 configuring gif(4) interfaces and using the 'phyint' keyword in
1086 XORP does not support source-routed IPv4 multicast tunnels nor the
1087 integrated IPIP tunneling, therefore it is not affected by this
1088 change. The __FreeBSD_version macro has been bumped to 700030.
1091 Support for PCI Message Signalled Interrupts has been
1092 re-enabled in the bge driver, only for those chips which are
1093 believed to support it properly. If there are any problems,
1094 MSI can be disabled completely by setting the
1095 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
1099 Support for PCI Message Signalled Interrupts has been
1100 disabled again in the bge driver. Many revisions of the
1101 hardware fail to support it properly. Support can be
1102 re-enabled by removing the #define of BGE_DISABLE_MSI in
1103 "src/sys/dev/bge/if_bge.c".
1106 Support for PCI Message Signalled Interrupts has been added
1107 to the bge driver. If there are any problems, MSI can be
1108 disabled completely by setting the 'hw.pci.enable_msi' and
1109 'hw.pci.enable_msix' tunables to 0 in the loader.
1112 The removal of several facets of the experimental Threading
1113 system from the kernel means that the proc and thread structures
1114 have changed quite a bit. I suggest all kernel modules that might
1115 reference these structures be recompiled.. Especially the
1119 Sound infrastructure has been updated with various fixes and
1120 improvements. Most of the changes are pretty much transparent,
1121 with exceptions of followings:
1122 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
1123 moved to their own dev sysctl nodes, for example:
1124 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
1125 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
1126 own chardev in the form of "dsp%d.<function>%d", where <function>
1127 is p = playback, r = record and v = virtual, respectively. Users
1128 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
1129 This does not affect those who are using "/dev/dsp".
1132 geom(4)'s gmirror(8) class metadata structure has been
1133 rev'd from v3 to v4. If you update across this point and
1134 your metadata is converted for you, you will not be easily
1135 able to downgrade since the /boot/kernel.old/geom_mirror.ko
1136 kernel module will be unable to read the v4 metadata. You
1137 can resolve this by doing from the loader(8) prompt:
1139 set vfs.root.mountfrom="ufs:/dev/XXX"
1141 where XXX is the root slice of one of the disks that composed
1142 the mirror (i.e.: /dev/ad0s1a). You can then rebuild
1143 the array the same way you built it originally.
1146 The following binaries have been disconnected from the build:
1147 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
1148 and mount_std. The functionality of these programs has been
1149 moved into the mount program. For example, to mount a devfs
1150 filesystem, instead of using mount_devfs, use: "mount -t devfs".
1151 This does not affect entries in /etc/fstab, since entries in
1152 /etc/fstab are always processed with "mount -t fstype".
1155 Support for PCI Message Signalled Interrupts on i386 and amd64
1156 has been added to the kernel and various drivers will soon be
1157 updated to use MSI when it is available. If there are any problems,
1158 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
1159 and 'hw.pci.enable_msix' tunables to 0 in the loader.
1162 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
1163 The lockmgr object layout has been changed as a result of having
1164 a lock_object embedded in it. As a consequence all file system
1165 kernel modules must be re-compiled. The mutex profiling man page
1166 has not yet been updated to reflect this change.
1169 KSE in the kernel has now been made optional and turned on by
1170 default. Use 'nooption KSE' in your kernel config to turn it
1171 off. All kernel modules *must* be recompiled after this change.
1172 There-after, modules from a KSE kernel should be compatible with
1173 modules from a NOKSE kernel due to the temporary padding fields
1174 added to 'struct proc'.
1177 mrouted and its utilities have been removed from the base system.
1180 Some ioctl(2) command codes have changed. Full backward ABI
1181 compatibility is provided if the "options COMPAT_FREEBSD6" is
1182 present in the kernel configuration file. Make sure to add
1183 this option to your kernel config file, or recompile X.Org
1184 and the rest of ports; otherwise they may refuse to work.
1187 tcpslice has been removed from the base system.
1190 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
1191 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
1192 systat needs to be rebuilt.
1195 libpcap updated to v0.9.4 and tcpdump to v3.9.4
1198 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
1199 for IPFIREWALL_FORWARD is now as it was before when it was first
1200 committed and for years after. The behaviour is now ON.
1203 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
1204 Now it can decrypt files created from different architectures.
1205 Unfortunately, it is no longer able to decrypt a cipher text
1206 generated with an older version on 64 bit architectures.
1207 If you have such a file, you need old utility to decrypt it.
1210 The interface version of the i4b kernel part has changed. So
1211 after updating the kernel sources and compiling a new kernel,
1212 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
1213 be rebuilt, and vice versa.
1216 The XBOX kernel now defaults to the nfe(4) driver instead of
1217 the nve(4) driver. Please update your configuration
1221 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
1222 PCnet family of NICs has been removed. The new le(4) driver serves
1223 as an equivalent but cross-platform replacement with the pcn(4)
1224 driver still providing performance-optimized support for the subset
1225 of AMD Am79C971 PCnet-FAST and greater chips as before.
1228 The machdep.* sysctls and the adjkerntz utility have been
1229 modified a bit. The new adjkerntz utility uses the new
1230 sysctl names and sysctlbyname() calls, so it may be impossible
1231 to run an old /sbin/adjkerntz utility in single-user mode
1232 with a new kernel. Replace the `adjkerntz -i' step before
1233 `make installworld' with:
1235 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
1237 and proceed as usual with the rest of the installworld-stage
1238 steps. Otherwise, you risk installing binaries with their
1239 timestamp set several hours in the future, especially if
1240 you are running with local time set to GMT+X hours.
1243 The ip6fw utility has been removed. The behavior provided by
1244 ip6fw has been in ipfw2 for a good while and the rc.d scripts
1245 have been updated to deal with it. There are some rules that
1246 might not migrate cleanly. Use rc.firewall6 as a template to
1250 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
1251 attachments have been removed. Make sure to configure scc(4)
1252 on sparc64. Note also that by default puc(4) will use uart(4)
1253 and not sio(4) for serial ports because interrupt handling has
1254 been optimized for multi-port serial cards and only uart(4)
1255 implements the interface to support it.
1258 The scc(4) driver replaces puc(4) for Serial Communications
1259 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
1260 Z8530. On sparc64, it is advised to add scc(4) to the kernel
1261 configuration to make sure that the serial ports remain
1265 Most world/kernel related NO_* build options changed names.
1266 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
1267 after FreeBSD ports) and should be set in /etc/src.conf
1268 (the src.conf(5) manpage is provided). Full backwards
1269 compatibility is maintained for the time being though it's
1270 highly recommended to start moving old options out of the
1271 system-wide /etc/make.conf file into the new /etc/src.conf
1272 while also properly renaming them. More conversions will
1273 likely follow. Posting to current@:
1275 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
1278 The NETSMBCRYPTO kernel option has been retired because its
1279 functionality is always included in NETSMB and smbfs.ko now.
1282 The TDFX_LINUX kernel option was retired and replaced by the
1283 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
1284 kernel module. Loading it alone should suffice to get 3dfx support
1285 for Linux apps because it will pull in 3dfx.ko and linux.ko through
1289 The 'audit' group was added to support the new auditing functionality
1290 in the base system. Be sure to follow the directions for updating,
1291 including the requirement to run mergemaster -p.
1294 The kernel ABI to file system modules was changed on i386.
1295 Please make sure that your kernel and modules are in sync.
1298 This actually occured some time ago, but installing the kernel
1299 now also installs a bunch of symbol files for the kernel modules.
1300 This increases the size of /boot/kernel to about 67Mbytes. You
1301 will need twice this if you will eventually back this up to kernel.old
1302 on your next install.
1303 If you have a shortage of room in your root partition, you should add
1304 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
1305 to your /etc/make.conf.
1308 libc's malloc implementation has been replaced. This change has the
1309 potential to uncover application bugs that previously went unnoticed.
1310 See the malloc(3) manual page for more details.
1313 The generic netgraph(4) cookie has been changed. If you upgrade
1314 kernel passing this point, you also need to upgrade userland
1315 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
1318 si(4)'s device files now contain the unit number.
1319 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
1322 The kernel ABI was mostly destroyed due to a change in the size
1323 of struct lock_object which is nested in other structures such
1324 as mutexes which are nested in all sorts of other structures.
1325 Make sure your kernel and modules are in sync.
1328 The page coloring algorithm in the VM subsystem was converted
1329 from tuning with kernel options to autotuning. Please remove
1330 any PQ_* option except PQ_NOOPT from your kernel config.
1333 The net80211-related tools in the tools/tools/ath directory
1334 have been moved to tools/tools/net80211 and renamed with a
1335 "wlan" prefix. Scripts that use them should be adjusted
1339 Scripts in the local_startup directories (as defined in
1340 /etc/defaults/rc.conf) that have the new rc.d semantics will
1341 now be run as part of the base system rcorder. If there are
1342 errors or problems with one of these local scripts, it could
1343 cause boot problems. If you encounter such problems, boot in
1344 single user mode, remove that script from the */rc.d directory.
1345 Please report the problem to the port's maintainer, and the
1346 freebsd-ports@freebsd.org mailing list.
1349 The nodev mount option was deprecated in RELENG_6 (where it
1350 was a no-op), and is now unsupported. If you have nodev or dev listed
1351 in /etc/fstab, remove it, otherwise it will result in a mount error.
1354 ABI between ipfw(4) and ipfw(8) has been changed. You need
1355 to rebuild ipfw(8) when rebuilding kernel.
1358 rp(4)'s device files now contain the unit number.
1359 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
1362 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
1363 Its /etc/rc.conf.d configuration file has been `ppp' from
1364 the beginning, and hence there is no need to touch it.
1367 Now most modules get their build-time options from the kernel
1368 configuration file. A few modules still have fixed options
1369 due to their non-conformant implementation, but they will be
1370 corrected eventually. You may need to review the options of
1371 the modules in use, explicitly specify the non-default options
1372 in the kernel configuration file, and rebuild the kernel and
1376 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
1377 to turn polling(4) on your interfaces.
1380 The old bridge(4) implementation was retired. The new
1381 if_bridge(4) serves as a full functional replacement.
1384 The ai_addrlen of a struct addrinfo was changed to a socklen_t
1385 to conform to POSIX-2001. This change broke an ABI
1386 compatibility on 64 bit architecture. You have to recompile
1387 userland programs that use getaddrinfo(3) on 64 bit
1391 RELENG_6 branched here.
1394 The pccard_ifconfig rc.conf variable has been removed and a new
1395 variable, ifconfig_DEFAULT has been introduced. Unlike
1396 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
1397 do not have ifconfig_ifn entries rather than just those in
1398 removable_interfaces.
1401 Some previous versions of PAM have permitted the use of
1402 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
1403 to third party PAM modules in /usr/local/lib. A change has been
1404 made to require the use of absolute paths in order to avoid
1405 ambiguity and dependence on library path configuration, which may
1406 affect existing configurations.
1409 Major changes to network interface API. All drivers must be
1410 recompiled. Drivers not in the base system will need to be
1411 updated to the new APIs.
1414 Changes were made to kinfo_proc in sys/user.h. Please recompile
1415 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
1416 will not behave correctly.
1418 The API and ABI for hwpmc(4) have changed with the addition
1419 of sampling support. Please recompile lib/libpmc(3) and
1420 usr.sbin/{pmcstat,pmccontrol}.
1423 The OpenBSD dhclient was imported in place of the ISC dhclient
1424 and the network interface configuration scripts were updated
1425 accordingly. If you use DHCP to configure your interfaces, you
1426 must now run devd. Also, DNS updating was lost so you will need
1427 to find a workaround if you use this feature.
1429 The '_dhcp' user was added to support the OpenBSD dhclient. Be
1430 sure to run mergemaster -p (like you are supposed to do every time
1434 if_bridge was added to the tree. This has changed struct ifnet.
1435 Please recompile userland and all network related modules.
1438 The n_net of a struct netent was changed to an uint32_t, and
1439 1st argument of getnetbyaddr() was changed to an uint32_t, to
1440 conform to POSIX-2001. These changes broke an ABI
1441 compatibility on 64 bit architecture. With these changes,
1442 shlib major of libpcap was bumped. You have to recompile
1443 userland programs that use getnetbyaddr(3), getnetbyname(3),
1444 getnetent(3) and/or libpcap on 64 bit architecture.
1447 Kernel parsing of extra options on '#!' first lines of shell
1448 scripts has changed. Lines with multiple options likely will
1449 fail after this date. For full details, please see
1450 http://people.freebsd.org/~gad/Updating-20050528.txt
1453 The packet filter (pf) code has been updated to OpenBSD 3.7
1454 Please note the changed anchor syntax and the fact that
1455 authpf(8) now needs a mounted fdescfs(5) to function.
1458 The NO_MIXED_MODE kernel option has been removed from the i386
1459 amd64 platforms as its use has been superceded by the new local
1460 APIC timer code. Any kernel config files containing this option
1464 The on-disk format of LC_CTYPE files was changed to be machine
1465 independent. Please make sure NOT to use NO_CLEAN buildworld
1466 when crossing this point. Crossing this point also requires
1467 recompile or reinstall of all locale depended packages.
1470 The ifi_epoch member of struct if_data has been changed to
1471 contain the uptime at which the interface was created or the
1472 statistics zeroed rather then the wall clock time because
1473 wallclock time may go backwards. This should have no impact
1474 unless an snmp implementation is using this value (I know of
1475 none at this point.)
1478 The acpi_perf and acpi_throttle drivers are now part of the
1479 acpi(4) main module. They are no longer built separately.
1482 The layout of struct image_params has changed. You have to
1483 recompile all compatibility modules (linux, svr4, etc) for use
1484 with the new kernel.
1487 The p4tcc driver has been merged into cpufreq(4). This makes
1488 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
1489 compile in "device cpufreq" to restore this functionality.
1492 The responsibility of recomputing the file system summary of
1493 a SoftUpdates-enabled dirty volume has been transferred to the
1494 background fsck. A rebuild of fsck(8) utility is recommended
1495 if you have updated the kernel.
1497 To get the old behavior (recompute file system summary at mount
1498 time), you can set vfs.ffs.compute_summary_at_mount=1 before
1499 mounting the new volume.
1502 The cpufreq import is complete. As part of this, the sysctls for
1503 acpi(4) throttling have been removed. The power_profile script
1504 has been updated, so you can use performance/economy_cpu_freq in
1505 rc.conf(5) to set AC on/offline cpu frequencies.
1508 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
1509 requires recompiling libnetgraph and userland netgraph utilities.
1512 Support for abbreviated forms of a number of ipfw options is
1513 now deprecated. Warnings are printed to stderr indicating the
1514 correct full form when a match occurs. Some abbreviations may
1515 be supported at a later date based on user feedback. To be
1516 considered for support, abbreviations must be in use prior to
1517 this commit and unlikely to be confused with current key words.
1520 By a popular demand, a lot of NOFOO options were renamed
1521 to NO_FOO (see bsd.compat.mk for a full list). The old
1522 spellings are still supported, but will cause annoying
1523 warnings on stderr. Make sure you upgrade properly (see
1524 the COMMON ITEMS: section later in this file).
1527 Auto-loading of ancillary wlan modules such as wlan_wep has
1528 been temporarily disabled; you need to statically configure
1529 the modules you need into your kernel or explicitly load them
1530 prior to use. Specifically, if you intend to use WEP encryption
1531 with an 802.11 device load/configure wlan_wep; if you want to
1532 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
1533 and wlan_xauth as required.
1536 The behaviour of ppp(8) has changed slightly. If lqr is enabled
1537 (``enable lqr''), older versions would revert to LCP ECHO mode on
1538 negotiation failure. Now, ``enable echo'' is required for this
1539 behaviour. The ppp version number has been bumped to 3.4.2 to
1543 The wlan support has been updated to split the crypto support
1544 into separate modules. For static WEP you must configure the
1545 wlan_wep module in your system or build and install the module
1546 in place where it can be loaded (the kernel will auto-load
1547 the module when a wep key is configured).
1550 The ath driver has been updated to split the tx rate control
1551 algorithm into a separate module. You need to include either
1552 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
1555 Support for systems with an 80386 CPU has been removed. Please
1556 use FreeBSD 5.x or earlier on systems with an 80386.
1559 We have had a hack which would mount the root filesystem
1560 R/W if the device were named 'md*'. As part of the vnode
1561 work I'm doing I have had to remove this hack. People
1562 building systems which use preloaded MD root filesystems
1563 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
1564 their /etc/rc scripts.
1567 FreeBSD 5.3 shipped here.
1570 The size of struct tcpcb has changed again due to the removal
1571 of RFC1644 T/TCP. You have to recompile userland programs that
1572 read kmem for tcp sockets directly (netstat, sockstat, etc.)
1575 The size of struct tcpcb has changed. You have to recompile
1576 userland programs that read kmem for tcp sockets directly
1577 (netstat, sockstat, etc.)
1580 RELENG_5 branched here. For older entries, please see updating
1581 in the RELENG_5 branch.
1587 Avoid using make -j when upgrading. From time to time in the
1588 past there have been problems using -j with buildworld and/or
1589 installworld. This is especially true when upgrading between
1590 "distant" versions (eg one that cross a major release boundary
1591 or several minor releases, or when several months have passed
1592 on the -current branch).
1594 Sometimes, obscure build problems are the result of environment
1595 poisoning. This can happen because the make utility reads its
1596 environment when searching for values for global variables.
1597 To run your build attempts in an "environmental clean room",
1598 prefix all make commands with 'env -i '. See the env(1) manual
1599 page for more details.
1601 When upgrading from one major version to another it is generally
1602 best to upgrade to the latest code in the currently installed branch
1603 first, then do an upgrade to the new branch. This is the best-tested
1604 upgrade path, and has the highest probability of being successful.
1605 Please try this approach before reporting problems with a major
1610 If you are updating from a prior version of FreeBSD (even one just
1611 a few days old), you should follow this procedure. It is the most
1612 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
1614 make kernel-toolchain
1615 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
1616 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
1618 To test a kernel once
1619 ---------------------
1620 If you just want to boot a kernel once (because you are not sure
1621 if it works, or if you want to boot a known bad kernel to provide
1622 debugging information) run
1623 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
1624 nextboot -k testkernel
1626 To just build a kernel when you know that it won't mess you up
1627 --------------------------------------------------------------
1628 This assumes you are already running a 5.X system. Replace
1629 ${arch} with the architecture of your machine (e.g. "i386",
1630 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
1632 cd src/sys/${arch}/conf
1633 config KERNEL_NAME_HERE
1634 cd ../compile/KERNEL_NAME_HERE
1639 If this fails, go to the "To build a kernel" section.
1641 To rebuild everything and install it on the current system.
1642 -----------------------------------------------------------
1643 # Note: sometimes if you are running current you gotta do more than
1644 # is listed here if you are upgrading from a really old current.
1646 <make sure you have good level 0 dumps>
1648 make kernel KERNCONF=YOUR_KERNEL_HERE
1650 <reboot in single user> [3]
1658 To cross-install current onto a separate partition
1659 --------------------------------------------------
1660 # In this approach we use a separate partition to hold
1661 # current's root, 'usr', and 'var' directories. A partition
1662 # holding "/", "/usr" and "/var" should be about 2GB in
1665 <make sure you have good level 0 dumps>
1668 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1669 <maybe newfs current's root partition>
1670 <mount current's root partition on directory ${CURRENT_ROOT}>
1671 make installworld DESTDIR=${CURRENT_ROOT}
1672 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1673 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1674 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
1675 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1676 <reboot into current>
1677 <do a "native" rebuild/install as described in the previous section>
1678 <maybe install compatibility libraries from ports/misc/compat*>
1682 To upgrade in-place from 5.x-stable to current
1683 ----------------------------------------------
1684 <make sure you have good level 0 dumps>
1686 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
1688 <reboot in single user> [3]
1695 Make sure that you've read the UPDATING file to understand the
1696 tweaks to various things you need. At this point in the life
1697 cycle of current, things change often and you are on your own
1698 to cope. The defaults can also change, so please read ALL of
1699 the UPDATING entries.
1701 Also, if you are tracking -current, you must be subscribed to
1702 freebsd-current@freebsd.org. Make sure that before you update
1703 your sources that you have read and understood all the recent
1704 messages there. If in doubt, please track -stable which has
1705 much fewer pitfalls.
1707 [1] If you have third party modules, such as vmware, you
1708 should disable them at this point so they don't crash your
1711 [3] From the bootblocks, boot -s, and then do
1716 adjkerntz -i # if CMOS is wall time
1717 Also, when doing a major release upgrade, it is required that
1718 you boot into single user mode to do the installworld.
1720 [4] Note: This step is non-optional. Failure to do this step
1721 can result in a significant reduction in the functionality of the
1722 system. Attempting to do it by hand is not recommended and those
1723 that pursue this avenue should read this file carefully, as well
1724 as the archives of freebsd-current and freebsd-hackers mailing lists
1725 for potential gotchas.
1727 [5] Usually this step is a noop. However, from time to time
1728 you may need to do this if you get unknown user in the following
1729 step. It never hurts to do it all the time. You may need to
1730 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1731 install) after the buildworld before this step if you last updated
1732 from current before 20020224 or from -stable before 20020408.
1734 [8] In order to have a kernel that can run the 4.x binaries
1735 needed to do an installworld, you must include the COMPAT_FREEBSD4
1736 option in your kernel. Failure to do so may leave you with a system
1737 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
1738 is required to run the 5.x binaries on more recent kernels.
1740 Make sure that you merge any new devices from GENERIC since the
1741 last time you updated your kernel config file.
1743 [9] When checking out sources, you must include the -P flag to have
1744 cvs prune empty directories.
1746 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1747 "?=" instead of the "=" assignment operator, so that buildworld can
1748 override the CPUTYPE if it needs to.
1750 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1751 not on the command line, or in /etc/make.conf. buildworld will
1752 warn if it is improperly defined.
1755 This file contains a list, in reverse chronological order, of major
1756 breakages in tracking -current. Not all things will be listed here,
1757 and it only starts on October 16, 2004. Updating files can found in
1758 previous releases if your system is older than this.
1760 Copyright information:
1762 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
1764 Redistribution, publication, translation and use, with or without
1765 modification, in full or in part, in any form or format of this
1766 document are permitted without further permission from the author.
1768 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1769 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1770 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1771 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1772 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1773 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1774 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1775 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1776 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1777 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1778 POSSIBILITY OF SUCH DAMAGE.
1780 If you find this document useful, and you want to, you may buy the
1783 Contact Warner Losh if you have any questions about your use of