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 20120530: p10 FreeBSD-SA-12:01.openssl (revised),
19 FreeBSD-SA-12:02.crypt
20 Update the previous openssl fix. [12:01]
22 Fix a bug in crypt(3) ignoring characters of a passphrase. [12:02]
24 20120503: p9 FreeBSD-SA-12:01.openssl
25 Fix multiple OpenSSL vulnerabilities.
27 20120104: p8 FreeBSD-EN-12:01.freebsd-update
28 Extend the character set accepted by freebsd-update(8) in file
29 names in order to allow upgrades to FreeBSD 9.0-RELEASE.
31 20111223: p7 FreeBSD-SA-11:06.bind, FreeBSD-SA-11:07.chroot
32 FreeBSD-SA-11:08.telnetd, FreeBSD-SA-11:09.pam_ssh
34 Fix a problem whereby a corrupt DNS record can cause named to crash.
37 Add an API for alerting internal libc routines to the presence of
38 "unsafe" paths post-chroot, and use it in ftpd. [11:07]
40 Fix a buffer overflow in telnetd. [11:08]
42 Make pam_ssh ignore unpassphrased keys unless the "nullok" option is
45 Add sanity checking of service names in pam_start. [11:10]
47 20111004: p6 FreeBSD-SA-11:05.unix (revised)
48 Fix a bug in UNIX socket handling in the linux emulator which was
49 exposed by the security fix in FreeBSD-SA-11:05.unix.
51 20110928: p5 FreeBSD-SA-11:04.compress, FreeBSD-SA-11:05.unix
52 Fix handling of corrupt compress(1)ed data. [11:04]
54 Add missing length checks on unix socket addresses. [11:05]
56 20110528: p4 FreeBSD-SA-11:02.bind
57 Fix BIND remote DoS with large RRSIG RRsets and negative
60 20110420: p3 FreeBSD-SA-11:01.mountd
61 Fix CIDR parsing bug in mountd ACLs.
63 20101129: p2 FreeBSD-SA-10:10.openssl
64 Fix OpenSSL multiple vulnerabilities.
66 20100920: p1 FreeBSD-SA-10:08.bzip2
67 Fix an integer overflow in RLE length parsing when decompressing
73 20100713: FreeBSD-SA-10:07.mbuf
74 Correctly copy the M_RDONLY flag when duplicating a reference
75 to an mbuf external buffer.
78 The config(8) command has been updated to maintain compatibility
79 with config files from 8.0-RELEASE. You will need a new version
80 of config to build kernels (this version can be used from 8.0-RELEASE
81 forward). The buildworld target will generate it, so following
82 the instructions in this file for updating will work glitch-free.
83 Merely doing a make buildkernel without first doing a make buildworld
84 (or kernel-toolchain), or attempting to build a kernel using
85 traidtional methods will generate a config version warning, indicating
89 The rc.firewall and rc.firewall6 were unified, and
90 rc.firewall6 and rc.d/ip6fw were removed.
91 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc
92 variables are obsoleted. Instead, the following new rc
93 variables are added to rc.d/ipfw:
95 firewall_client_net_ipv6, firewall_simple_iif_ipv6,
96 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6,
97 firewall_simple_onet_ipv6
99 The meanings correspond to the relevant IPv4 variables.
102 COMPAT_IA32 has been added as an alias for COMPAT_FREEBSD32. A new
103 version of config(8) is required. The error message when you hit this
104 condition is confusing (COMPAT_FREEBSD32 duplicate option), when it
105 should really say "your config is too old to compile this new kernel."
108 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32
109 to allow 32-bit compatibility on non-x86 platforms. All kernel
110 configurations on amd64 and ia64 platforms using these options must
111 be modified accordingly.
114 Introduce the kernel thread "deadlock resolver" (which can be enabled
115 via the DEADLKRES option, see NOTES for more details) and the
116 sleepq_type() function for sleepqueues.
122 802.11s D3.03 support was committed. This is incompatible with
123 the previous code, which was based on D3.0.
126 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
127 mount(8) and -a option for df(1) to see them.
130 Remove the option STOP_NMI. The default action is now to use NMI
131 only for KDB via the newly introduced function stop_cpus_hard()
132 and maintain stop_cpus() to just use a normal IPI_STOP on ia32
139 Bump the shared library version numbers for all libraries that
140 do not use symbol versioning as part of the 8.0-RELEASE cycle.
141 Bump __FreeBSD_version to 800105.
144 Due to changes in the implementation of virtual network stack
145 support, all network-related kernel modules must be recompiled.
146 As this change breaks the ABI, bump __FreeBSD_version to 800104.
149 The TOE interface to the TCP syncache has been modified to remove struct
150 tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. The
151 cxgb driver is the only TOE consumer affected by this change, and needs
152 to be recompiled along with the kernel. As this change breaks the ABI,
153 bump __FreeBSD_version to 800103.
156 Padding has been added to struct tcpcb, sackhint and tcpstat in
157 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
158 maintainig the ABI. However, this change breaks the ABI, so bump
159 __FreeBSD_version to 800102. User space tools that rely on the size of
160 any of these structs (e.g. sockstat) need to be recompiled.
163 The NFS_LEGACYRPC option has been removed along with the old
164 kernel RPC implementation that this option selected. Kernel
165 configurations may need to be adjusted.
168 The network interface device nodes at /dev/net/<interface> have
169 been removed. All ioctl operations can be performed the normal
170 way using routing sockets. The kqueue functionality can
171 generally be replaced with routing sockets.
174 The documentation from the FreeBSD Documentation Project
175 (Handbook, FAQ, etc.) is now installed via packages by
176 sysinstall(8) and under the /usr/local/share/doc/freebsd
177 directory instead of /usr/share/doc.
180 The ABI of various structures related to the SYSV IPC API have
181 been changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43
182 kernel options now all require COMPAT_FREEBSD7.
183 Bump __FreeBSD_version to 800100.
186 Layout of struct vnet has changed as routing related variables
187 were moved to their own Vimage module. Modules need to be
188 recompiled. Bump __FreeBSD_version to 800099.
191 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023
192 and 1024 respectively. As long as no more than 16 groups per
193 process are used, no changes should be visible. When more
194 than 16 groups are used, old binaries may fail if they call
195 getgroups() or getgrouplist() with statically sized storage.
196 Recompiling will work around this, but applications should be
197 modified to use dynamically allocated storage for group arrays
198 as POSIX.1-2008 does not cap an implementation's number of
199 supported groups at NGROUPS_MAX+1 as previous versions did.
201 NFS and portalfs mounts may also be affected as the list of
202 groups is truncated to 16. Users of NFS who use more than 16
203 groups, should take care that negative group permissions are not
204 used on the exported file systems as they will not be reliable
205 unless a GSSAPI based authentication method is used.
208 The compiling option ADAPTIVE_LOCKMGRS has been introduced.
209 This option compiles in the support for adaptive spinning for lockmgrs
210 which want to enable it. The lockinit() function now accepts the
211 flag LK_ADAPTIVE in order to make the lock object subject to
212 adaptive spinning when both held in write and read mode.
215 The layout of the structure returned by IEEE80211_IOC_STA_INFO
216 has changed. User applications that use this ioctl need to be
220 The layout of struct thread has changed. Kernel and modules
224 The layout of structs ifnet, domain, protosw and vnet_net has
225 changed. Kernel modules need to be rebuilt.
226 Bump __FreeBSD_version to 800097.
229 window(1) has been removed from the base system. It can now be
230 installed from ports. The port is called misc/window.
233 The way we are storing and accessing `routing table' entries
234 has changed. Programs reading the FIB, like netstat, need to
238 A new netisr implementation has been added for FreeBSD 8. Network
239 file system modules, such as igmp, ipdivert, and others, should be
241 Bump __FreeBSD_version to 800096.
244 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose
248 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
249 Bump __FreeBSD_version to 800094.
252 Add mnt_xflag field to 'struct mount'. File system modules
254 Bump __FreeBSD_version to 800093.
257 The compiling option ADAPTIVE_SX has been retired while it has been
258 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
259 The KPI for sx_init_flags() changes as accepting flags:
260 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag
261 has been introduced in order to handle the reversed logic.
262 Bump __FreeBSD_version to 800092.
265 Add support for hierarchical jails. Remove global securelevel.
266 Bump __FreeBSD_version to 800091.
269 The layout of struct vnet_net has changed, therefore modules
271 Bump __FreeBSD_version to 800090.
274 The newly imported zic(8) produces a new format in the
275 output. Please run tzsetup(8) to install the newly created
276 data to /etc/localtime.
279 The sysctl tree for the usb stack has renamed from hw.usb2.* to
280 hw.usb.* and is now consistent again with previous releases.
283 802.11 monitor mode support was revised and driver api's
284 were changed. Drivers dependent on net80211 now support
285 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No
286 user-visible data structures were changed but applications
287 that use DLT_IEEE802_11 may require changes.
288 Bump __FreeBSD_version to 800088.
291 The layout of the following structs has changed: sysctl_oid,
292 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
293 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
294 panics may be experienced. World rebuild is required for
295 correctly checking networking state from userland.
296 Bump __FreeBSD_version to 800085.
299 MLDv2 and Source-Specific Multicast (SSM) have been merged
300 to the IPv6 stack. VIMAGE hooks are in but not yet used.
301 The implementation of SSM within FreeBSD's IPv6 stack closely
302 follows the IPv4 implementation.
304 For kernel developers:
306 * The most important changes are that the ip6_output() and
307 ip6_input() paths no longer take the IN6_MULTI_LOCK,
308 and this lock has been downgraded to a non-recursive mutex.
310 * As with the changes to the IPv4 stack to support SSM, filtering
311 of inbound multicast traffic must now be performed by transport
312 protocols within the IPv6 stack. This does not apply to TCP and
313 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
315 * The KPIs used by IPv6 multicast are similar to those used by
316 the IPv4 stack, with the following differences:
317 * im6o_mc_filter() is analogous to imo_multicast_filter().
318 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
319 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
320 * IN6_LOOKUP_MULTI() has been deprecated and removed.
321 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
322 for MLDv1 have an additional 'timer' argument which is used to
323 jitter the initial membership report for the solicited-node
324 multicast membership on-link.
325 * This is not strictly needed for MLDv2, which already jitters
326 its report transmissions. However, the 'timer' argument is
327 preserved in case MLDv1 is active on the interface.
329 * The KAME linked-list based IPv6 membership implementation has
330 been refactored to use a vector similar to that used by the IPv4
332 Code which maintains a list of its own multicast memberships
333 internally, e.g. carp, has been updated to reflect the new
336 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
337 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
338 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
339 implementation constraint which needs to be addressed in HEAD.
341 For application developers:
343 * The changes are broadly similar to those made for the IPv4
346 * The use of IPv4 and IPv6 multicast socket options on the same
347 socket, using mapped addresses, HAS NOT been tested or supported.
349 * There are a number of issues with the implementation of various
350 IPv6 multicast APIs which need to be resolved in the API surface
351 before the implementation is fully compatible with KAME userland
352 use, and these are mostly to do with interface index treatment.
354 * The literature available discusses the use of either the delta / ASM
355 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
356 using setsourcefilter(3)/getsourcefilter(3). For more information
357 please refer to RFC 3768, 'Socket Interface Extensions for
358 Multicast Source Filters'.
360 * Applications which use the published RFC 3678 APIs should be fine.
362 For systems administrators:
364 * The mtest(8) utility has been refactored to support IPv6, in
365 addition to IPv4. Interface addresses are no longer accepted
366 as arguments, their names must be used instead. The utility
367 will map the interface name to its first IPv4 address as
368 returned by getifaddrs(3).
370 * The ifmcstat(8) utility has also been updated to print the MLDv2
371 endpoint state and source filter lists via sysctl(3).
373 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
374 loopback of IPv6 multicast datagrams by default; it defaults to 1
375 to preserve the existing behaviour. Disabling multicast loopback is
376 recommended for optimal system performance.
378 * The IPv6 MROUTING code has been changed to examine this sysctl
379 instead of attempting to perform a group lookup before looping
380 back forwarded datagrams.
382 Bump __FreeBSD_version to 800084.
385 Implement low-level Bluetooth HCI API.
386 Bump __FreeBSD_version to 800083.
389 The layout of struct malloc_type, used by modules to register new
390 memory allocation types, has changed. Most modules will need to
391 be rebuilt or panics may be experienced.
392 Bump __FreeBSD_version to 800081.
395 Anticipate overflowing inp_flags - add inp_flags2.
396 This changes most offsets in inpcb, so checking v4 connection
397 state will require a world rebuild.
398 Bump __FreeBSD_version to 800080.
401 Add an llentry to struct route and struct route_in6. Modules
402 embedding a struct route will need to be recompiled.
403 Bump __FreeBSD_version to 800079.
406 The size of rt_metrics_lite and by extension rtentry has changed.
407 Networking administration apps will need to be recompiled.
408 The route command now supports show as an alias for get, weighting
409 of routes, sticky and nostick flags to alter the behavior of stateful
411 Bump __FreeBSD_version to 800078.
414 Do not use Giant for kbdmux(4) locking. This is wrong and
415 apparently causing more problems than it solves. This will
416 re-open the issue where interrupt handlers may race with
417 kbdmux(4) in polling mode. Typical symptoms include (but
418 not limited to) duplicated and/or missing characters when
419 low level console functions (such as gets) are used while
420 interrupts are enabled (for example geli password prompt,
421 mountroot prompt etc.). Disabling kbdmux(4) may help.
424 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
425 kernel modules referencing any of the above need to be recompiled.
426 Bump __FreeBSD_version to 800075.
429 GEOM_PART has become the default partition slicer for storage devices,
430 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
431 introduces some changes:
433 MSDOS/EBR: the devices created from MSDOS extended partition entries
434 (EBR) can be named differently than with GEOM_MBR and are now symlinks
435 to devices with offset-based names. fstabs may need to be modified.
437 BSD: the "geometry does not match label" warning is harmless in most
438 cases but it points to problems in file system misalignment with
439 disk geometry. The "c" partition is now implicit, covers the whole
440 top-level drive and cannot be (mis)used by users.
442 General: Kernel dumps are now not allowed to be written to devices
443 whose partition types indicate they are meant to be used for file
444 systems (or, in case of MSDOS partitions, as something else than
447 Most of these changes date approximately from 200812.
450 The uscanner(4) driver has been removed from the kernel. This follows
451 Linux removing theirs in 2.6 and making libusb the default interface
455 The multicast forwarding code has been cleaned up. netstat(1)
456 only relies on KVM now for printing bandwidth upcall meters.
457 The IPv4 and IPv6 modules are split into ip_mroute_mod and
458 ip6_mroute_mod respectively. The config(5) options for statically
459 compiling this code remain the same, i.e. 'options MROUTING'.
462 Support for the IFF_NEEDSGIANT network interface flag has been
463 removed, which means that non-MPSAFE network device drivers are no
464 longer supported. In particular, if_ar, if_sr, and network device
465 drivers from the old (legacy) USB stack can no longer be built or
469 POSIX.1 Native Language Support (NLS) has been enabled in libc and
470 a bunch of new language catalog files have also been added.
471 This means that some common libc messages are now localized and
472 they depend on the LC_MESSAGES environmental variable.
475 The k8temp(4) driver has been renamed to amdtemp(4) since
476 support for K10 and K11 CPU families was added.
479 IGMPv3 and Source-Specific Multicast (SSM) have been merged
480 to the IPv4 stack. VIMAGE hooks are in but not yet used.
482 For kernel developers, the most important changes are that the
483 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
484 and this lock has been downgraded to a non-recursive mutex.
486 Transport protocols (UDP, Raw IP) are now responsible for filtering
487 inbound multicast traffic according to group membership and source
488 filters. The imo_multicast_filter() KPI exists for this purpose.
489 Transports which do not use multicast (SCTP, TCP) already reject
490 multicast by default. Forwarding and receive performance may improve
491 as a mutex acquisition is no longer needed in the ip_input()
492 low-level input path. in_addmulti() and in_delmulti() are shimmed
493 to new KPIs which exist to support SSM in-kernel.
495 For application developers, it is recommended that loopback of
496 multicast datagrams be disabled for best performance, as this
497 will still cause the lock to be taken for each looped-back
498 datagram transmission. The net.inet.ip.mcast.loop sysctl may
499 be tuned to 0 to disable loopback by default; it defaults to 1
500 to preserve the existing behaviour.
502 For systems administrators, to obtain best performance with
503 multicast reception and multiple groups, it is always recommended
504 that a card with a suitably precise hash filter is used. Hash
505 collisions will still result in the lock being taken within the
506 transport protocol input path to check group membership.
508 If deploying FreeBSD in an environment with IGMP snooping switches,
509 it is recommended that the net.inet.igmp.sendlocal sysctl remain
510 enabled; this forces 224.0.0.0/24 group membership to be announced
513 The size of 'struct igmpstat' has changed; netstat needs to be
514 recompiled to reflect this.
515 Bump __FreeBSD_version to 800070.
518 libusb20.so.1 is now installed as libusb.so.1 and the ports system
519 updated to use it. This requires a buildworld/installworld in order to
520 update the library and dependencies (usbconfig, etc). Its advisable to
521 rebuild all ports which uses libusb. More specific directions are given
522 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
523 libusb are no longer required and can be removed.
526 A workaround is committed to allow the creation of System V shared
527 memory segment of size > 2 GB on the 64-bit architectures.
528 Due to a limitation of the existing ABI, the shm_segsz member
529 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
530 wrong for large segments. Note that limits must be explicitly
531 raised to allow such segments to be created.
534 The layout of struct ifnet has changed, requiring a rebuild of all
535 network device driver modules.
538 The /dev handling for the new USB stack has changed, a
539 buildworld/installworld is required for libusb20.
542 The new USB2 stack has now been permanently moved in and all kernel and
543 module names reverted to their previous values (eg, usb, ehci, ohci,
544 ums, ...). The old usb stack can be compiled in by prefixing the name
545 with the letter 'o', the old usb modules have been removed.
546 Updating entry 20090216 for xorg and 20090215 for libmap may still
550 The rc.conf(5) option if_up_delay has been renamed to
551 defaultroute_delay to better reflect its purpose. If you have
552 customized this setting in /etc/rc.conf you need to update it to
556 xorg 7.4 wants to configure its input devices via hald which does not
557 yet work with USB2. If the keyboard/mouse does not work in xorg then
559 Option "AllowEmptyInput" "off"
560 to your ServerLayout section. This will cause X to use the configured
561 kbd and mouse sections from your xorg.conf.
564 The GENERIC kernels for all architectures now default to the new USB2
565 stack. No kernel config options or code have been removed so if a
566 problem arises please report it and optionally revert to the old USB
567 stack. If you are loading USB kernel modules or have a custom kernel
568 that includes GENERIC then ensure that usb names are also changed over,
569 eg uftdi -> usb2_serial_ftdi.
571 Older programs linked against the ports libusb 0.1 need to be
572 redirected to the new stack's libusb20. /etc/libmap.conf can
574 # Map old usb library to new one for usb2 stack
575 libusb-0.1.so.8 libusb20.so.1
578 All USB ethernet devices now attach as interfaces under the name ueN
579 (eg. ue0). This is to provide a predictable name as vendors often
580 change usb chipsets in a product without notice.
583 The ichsmb(4) driver has been changed to require SMBus slave
584 addresses be left-justified (xxxxxxx0b) rather than right-justified.
585 All of the other SMBus controller drivers require left-justified
586 slave addresses, so this change makes all the drivers provide the
590 INET6 statistics (struct ip6stat) was updated.
591 netstat(1) needs to be recompiled.
594 NTFS has been removed from GENERIC kernel on amd64 to match
595 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
596 will load ntfs.ko module automatically when NTFS support is
597 actually needed, unless ntfs.ko is not installed or security
598 level prohibits loading kernel modules. If either is the case,
599 "options NTFS" has to be added into kernel config.
602 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
603 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
604 800061. User space tools that rely on the size of struct tcpcb in
605 tcp_var.h (e.g. sockstat) need to be recompiled.
608 ng_tty(4) module updated to match the new TTY subsystem.
609 Due to API change, user-level applications must be updated.
610 New API support added to mpd5 CVS and expected to be present
611 in next mpd5.3 release.
614 With __FreeBSD_version 800060 the makefs tool is part of
615 the base system (it was a port).
618 The afdata and ifnet locks have been changed from mutexes to
619 rwlocks, network modules will need to be re-compiled.
622 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
623 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
624 The new code reduced struct rtentry{} by 16 bytes on 32-bit
625 architecture and 40 bytes on 64-bit architecture. The userland
626 applications "arp" and "ndp" have been updated accordingly.
627 The output from "netstat -r" shows only routing entries and
628 none of the L2 information.
631 __FreeBSD_version 800057 marks the switchover from the
632 binary ath hal to source code. Users must add the line:
634 options AH_SUPPORT_AR5416
636 to their kernel config files when specifying:
640 The ath_hal module no longer exists; the code is now compiled
641 together with the driver in the ath module. It is now
642 possible to tailor chip support (i.e. reduce the set of chips
643 and thereby the code size); consult ath_hal(4) for details.
646 __FreeBSD_version 800054 adds memory barriers to
647 <machine/atomic.h>, new interfaces to ifnet to facilitate
648 multiple hardware transmit queues for cards that support
649 them, and a lock-less ring-buffer implementation to
650 enable drivers to more efficiently manage queueing of
654 A new version of ZFS (version 13) has been merged to -HEAD.
655 This version has zpool attribute "listsnapshots" off by
656 default, which means "zfs list" does not show snapshots,
657 and is the same as Solaris behavior.
660 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
663 The uhci, ohci, ehci and slhci USB Host controller drivers have
664 been put into separate modules. If you load the usb module
665 separately through loader.conf you will need to load the
666 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
667 controller add the following to loader.conf:
673 The ABI used by the PMC toolset has changed. Please keep
674 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
678 atapci kernel module now includes only generic PCI ATA
679 driver. AHCI driver moved to ataahci kernel module.
680 All vendor-specific code moved into separate kernel modules:
681 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
682 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
683 atamarvell, atamicron, atanational, atanetcell, atanvidia,
684 atapromise, ataserverworks, atasiliconimage, atasis, atavia
687 The TTY subsystem of the kernel has been replaced by a new
688 implementation, which provides better scalability and an
689 improved driver model. Most common drivers have been migrated to
690 the new TTY subsystem, while others have not. The following
691 drivers have not yet been ported to the new TTY layer:
694 cy, digi, rc, rp, sio
700 ng_h4, ng_tty, ppp, sl, snp
702 Adding these drivers to your kernel configuration file shall
703 cause compilation to fail.
706 ntpd has been upgraded to 4.2.4p5.
709 OpenSSH has been upgraded to 5.1p1.
711 For many years, FreeBSD's version of OpenSSH preferred DSA
712 over RSA for host and user authentication keys. With this
713 upgrade, we've switched to the vendor's default of RSA over
714 DSA. This may cause upgraded clients to warn about unknown
715 host keys even for previously known hosts. Users should
716 follow the usual procedure for verifying host keys before
717 accepting the RSA key.
719 This can be circumvented by setting the "HostKeyAlgorithms"
720 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
723 Please note that the sequence of keys offered for
724 authentication has been changed as well. You may want to
725 specify IdentityFile in a different order to revert this
729 The sio(4) driver has been removed from the i386 and amd64
730 kernel configuration files. This means uart(4) is now the
731 default serial port driver on those platforms as well.
733 To prevent collisions with the sio(4) driver, the uart(4) driver
734 uses different names for its device nodes. This means the
735 onboard serial port will now most likely be called "ttyu0"
736 instead of "ttyd0". You may need to reconfigure applications to
737 use the new device names.
739 When using the serial port as a boot console, be sure to update
740 /boot/device.hints and /etc/ttys before booting the new kernel.
741 If you forget to do so, you can still manually specify the hints
742 at the loader prompt:
744 set hint.uart.0.at="isa"
745 set hint.uart.0.port="0x3F8"
746 set hint.uart.0.flags="0x10"
747 set hint.uart.0.irq="4"
751 The gpt(8) utility has been removed. Use gpart(8) to partition
755 The version that Linuxulator emulates was changed from 2.4.2
756 to 2.6.16. If you experience any problems with Linux binaries
757 please try to set sysctl compat.linux.osrelease to 2.4.2 and
758 if it fixes the problem contact emulation mailing list.
761 ISDN4BSD (I4B) was removed from the src tree. You may need to
762 update a your kernel configuration and remove relevant entries.
765 I have checked in code to support multiple routing tables.
766 See the man pages setfib(1) and setfib(2).
767 This is a hopefully backwards compatible version,
768 but to make use of it you need to compile your kernel
769 with options ROUTETABLES=2 (or more up to 16).
772 The 802.11 wireless support was redone to enable multi-bss
773 operation on devices that are capable. The underlying device
774 is no longer used directly but instead wlanX devices are
775 cloned with ifconfig. This requires changes to rc.conf files.
777 ifconfig_ath0="WPA DHCP"
780 ifconfig_wlan0="WPA DHCP"
781 see rc.conf(5) for more details. In addition, mergemaster of
782 /etc/rc.d is highly recommended. Simultaneous update of userland
783 and kernel wouldn't hurt either.
785 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
786 modules were merged into the base wlan module. All references
787 to these modules (e.g. in kernel config files) must be removed.
790 psm(4) has gained write(2) support in native operation level.
791 Arbitrary commands can be written to /dev/psm%d and status can
792 be read back from it. Therefore, an application is responsible
793 for status validation and error recovery. It is a no-op in
794 other operation levels.
797 Support for KSE threading has been removed from the kernel. To
798 run legacy applications linked against KSE libmap.conf may
799 be used. The following libmap.conf may be used to ensure
800 compatibility with any prior release:
802 libpthread.so.1 libthr.so.1
803 libpthread.so.2 libthr.so.2
804 libkse.so.3 libthr.so.3
807 The layout of struct vmspace has changed. This affects libkvm
808 and any executables that link against libkvm and use the
809 kvm_getprocs() function. In particular, but not exclusively,
810 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
811 The effects are minimal, but it's advisable to upgrade world
815 The latest em driver no longer has support in it for the
816 82575 adapter, this is now moved to the igb driver. The
817 split was done to make new features that are incompatible
818 with older hardware easier to do.
821 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
822 likewise the kernel option is now GEOM_LINUX_LVM.
825 The default NFS mount mode has changed from UDP to TCP for
826 increased reliability. If you rely on (insecurely) NFS
827 mounting across a firewall you may need to update your
831 Belatedly note the addition of m_collapse for compacting
835 The fts(3) structures have been changed to use adequate
836 integer types for their members and so to be able to cope
837 with huge file trees. The old fts(3) ABI is preserved
838 through symbol versioning in libc, so third-party binaries
839 using fts(3) should still work, although they will not take
840 advantage of the extended types. At the same time, some
841 third-party software might fail to build after this change
842 due to unportable assumptions made in its source code about
843 fts(3) structure members. Such software should be fixed
844 by its vendor or, in the worst case, in the ports tree.
845 FreeBSD_version 800015 marks this change for the unlikely
846 case that a portable fix is impossible.
849 To upgrade to -current after this date, you must be running
850 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
851 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
854 The ADAPTIVE_GIANT kernel option has been retired because its
855 functionality is the default now.
858 The AT keyboard emulation of sunkbd(4) has been turned on
859 by default. In order to make the special symbols of the Sun
860 keyboards driven by sunkbd(4) work under X these now have
861 to be configured the same way as Sun USB keyboards driven
862 by ukbd(4) (which also does AT keyboard emulation), f.e.:
864 Option "XkbLayout" "us"
865 Option "XkbRules" "xorg"
866 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
869 It has been decided that it is desirable to provide ABI
870 backwards compatibility to the FreeBSD 4/5/6 versions of the
871 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
872 broken with the introduction of PCI domain support (see the
873 20070930 entry). Unfortunately, this required the ABI of
874 PCIOCGETCONF to be broken again in order to be able to
875 provide backwards compatibility to the old version of that
876 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
877 again. As for prominent ports this affects neither pciutils
878 nor xorg-server this time, the hal port needs to be rebuilt
882 The misnamed kthread_create() and friends have been renamed
883 to kproc_create() etc. Many of the callers already
885 I will return kthread_create() and friends in a while
886 with implementations that actually create threads, not procs.
887 Renaming corresponds with version 800002.
893 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
894 WITHOUT_LIBTHR are set.
897 The PCI code has been made aware of PCI domains. This means that
898 the location strings as used by pciconf(8) etc are now in the
899 following format: pci<domain>:<bus>:<device>[:<function>]. It
900 also means that consumers of <sys/pciio.h> potentially need to
901 be recompiled; this includes the hal and xorg-server ports.
904 The caching daemon (cached) was renamed to nscd. nscd.conf
905 configuration file should be used instead of cached.conf and
906 nscd_enable, nscd_pidfile and nscd_flags options should be used
907 instead of cached_enable, cached_pidfile and cached_flags in
911 The getfacl(1) utility now prints owning user and group name
912 instead of owning uid and gid in the three line comment header.
913 This is the same behavior as getfacl(1) on Solaris and Linux.
916 The new IPsec code is now compiled in using the IPSEC option. The
917 IPSEC option now requires "device crypto" be defined in your kernel
918 configuration. The FAST_IPSEC kernel option is now deprecated.
921 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
922 note the changed syntax - keep state is now on by default. Also
923 note the fact that ftp-proxy(8) has been changed from bottom up and
924 has been moved from libexec to usr/sbin. Changes in the ALTQ
925 handling also affect users of IPFW's ALTQ capabilities.
928 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
929 only IPsec supported by FreeBSD. The new IPsec stack
930 supports both IPv4 and IPv6. The kernel option will change
931 after the code changes have settled in. For now the kernel
932 option IPSEC is deprecated and FAST_IPSEC is the only option, that
933 will change after some settling time.
936 The wicontrol(8) utility has been removed from the base system. wi(4)
937 cards should be configured using ifconfig(8), see the man page for more
941 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
942 instead of the nve(4) driver. Please update your configuration
946 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
947 database if it is missing or older than the aliases file. If
948 desired, set the new rc.conf option sendmail_rebuild_aliases
949 to "YES" to restore that functionality.
952 The IPv4 multicast socket code has been considerably modified, and
953 moved to the file sys/netinet/in_mcast.c. Initial support for the
954 RFC 3678 Source-Specific Multicast Socket API has been added to
955 the IPv4 network stack.
957 Strict multicast and broadcast reception is now the default for
958 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
959 has now been removed.
961 The RFC 1724 hack for interface selection has been removed; the use
962 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
963 been added to replace it. Consumers such as routed will soon be
964 updated to reflect this.
966 These changes affect users who are running routed(8) or rdisc(8)
967 from the FreeBSD base system on point-to-point or unnumbered
971 The net80211 layer has changed significantly and all wireless
972 drivers that depend on it need to be recompiled. Further these
973 changes require that any program that interacts with the wireless
974 support in the kernel be recompiled; this includes: ifconfig,
975 wpa_supplicant, hostapd, and wlanstats. Users must also, for
976 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
977 if they use modules for wireless support. These modules implement
978 scanning support for station and ap modes, respectively. Failure
979 to load the appropriate module before marking a wireless interface
980 up will result in a message to the console and the device not
984 The pam_nologin(8) module ceases to provide an authentication
985 function and starts providing an account management function.
986 Consequent changes to /etc/pam.d should be brought in using
987 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
988 need manual editing as follows. Locate this line (or similar):
990 auth required pam_nologin.so no_warn
992 and change it according to this example:
994 account required pam_nologin.so no_warn
996 That is, the first word needs to be changed from "auth" to
997 "account". The new line can be moved to the account section
998 within the file for clarity. Not updating pam.conf(5) files
999 will result in nologin(5) ignored by the respective services.
1002 The ether_ioctl() function has been synchronized with ioctl(2)
1003 and ifnet.if_ioctl. Due to that, the size of one of its arguments
1004 has changed on 64-bit architectures. All kernel modules using
1005 ether_ioctl() need to be rebuilt on such architectures.
1008 Improved INCLUDE_CONFIG_FILE support has been introduced to the
1009 config(8) utility. In order to take advantage of this new
1010 functionality, you are expected to recompile and install
1011 src/usr.sbin/config. If you don't rebuild config(8), and your
1012 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
1013 build will be broken because of a missing "kernconfstring"
1017 Symbol versioning is enabled by default. To disable it, use
1018 option WITHOUT_SYMVER. It is not advisable to attempt to
1019 disable symbol versioning once it is enabled; your installworld
1020 will break because a symbol version-less libc will get installed
1021 before the install tools. As a result, the old install tools,
1022 which previously had symbol dependencies to FBSD_1.0, will fail
1023 because the freshly installed libc will not have them.
1025 The default threading library (providing "libpthread") has been
1026 changed to libthr. If you wish to have libkse as your default,
1027 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
1030 The ABI breakage in sendmail(8)'s libmilter has been repaired
1031 so it is no longer necessary to recompile mail filters (aka,
1032 milters). If you recompiled mail filters after the 20070408
1033 note, it is not necessary to recompile them again.
1036 The new trunk(4) driver has been renamed to lagg(4) as it better
1037 reflects its purpose. ifconfig will need to be recompiled.
1040 sendmail(8) has been updated to version 8.14.1. Mail filters
1041 (aka, milters) compiled against the libmilter included in the
1042 base operating system should be recompiled.
1045 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
1046 In order to use them one must agree to the respective LICENSE in
1047 share/doc/legal and define legal.intel_<name>.license_ack=1 via
1048 loader.conf(5) or kenv(1). Make sure to deinstall the now
1049 deprecated modules from the respective firmware ports.
1052 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
1053 were removed from FreeBSD's libc. These originally came from INRIA
1054 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
1055 deprecated in previous releases.
1056 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
1057 replace it as a more portable (and re-entrant) API.
1060 To support interrupt filtering a modification to the newbus API
1061 has occurred, ABI was broken and __FreeBSD_version was bumped
1062 to 700031. Please make sure that your kernel and modules are in
1063 sync. For more info:
1064 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
1067 The IPv6 multicast forwarding code may now be loaded into GENERIC
1068 kernels by loading the ip_mroute.ko module. This is built into the
1069 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
1070 set; see src.conf(5) for more information.
1073 The output of netstat -r has changed. Without -n, we now only
1074 print a "network name" without the prefix length if the network
1075 address and mask exactly match a Class A/B/C network, and an entry
1076 exists in the nsswitch "networks" map.
1077 With -n, we print the full unabbreviated CIDR network prefix in
1078 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
1079 This change is in preparation for changes such as equal-cost
1080 multipath, and to more generally assist operational deployment
1081 of FreeBSD as a modern IPv4 router.
1084 PIM has been turned on by default in the IPv4 multicast
1085 routing code. The kernel option 'PIM' has now been removed.
1086 PIM is now built by default if option 'MROUTING' is specified.
1087 It may now be loaded into GENERIC kernels by loading the
1088 ip_mroute.ko module.
1091 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
1092 has been removed. Its functionality may be achieved by explicitly
1093 configuring gif(4) interfaces and using the 'phyint' keyword in
1095 XORP does not support source-routed IPv4 multicast tunnels nor the
1096 integrated IPIP tunneling, therefore it is not affected by this
1097 change. The __FreeBSD_version macro has been bumped to 700030.
1100 Support for PCI Message Signalled Interrupts has been
1101 re-enabled in the bge driver, only for those chips which are
1102 believed to support it properly. If there are any problems,
1103 MSI can be disabled completely by setting the
1104 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
1108 Support for PCI Message Signalled Interrupts has been
1109 disabled again in the bge driver. Many revisions of the
1110 hardware fail to support it properly. Support can be
1111 re-enabled by removing the #define of BGE_DISABLE_MSI in
1112 "src/sys/dev/bge/if_bge.c".
1115 Support for PCI Message Signalled Interrupts has been added
1116 to the bge driver. If there are any problems, MSI can be
1117 disabled completely by setting the 'hw.pci.enable_msi' and
1118 'hw.pci.enable_msix' tunables to 0 in the loader.
1121 The removal of several facets of the experimental Threading
1122 system from the kernel means that the proc and thread structures
1123 have changed quite a bit. I suggest all kernel modules that might
1124 reference these structures be recompiled.. Especially the
1128 Sound infrastructure has been updated with various fixes and
1129 improvements. Most of the changes are pretty much transparent,
1130 with exceptions of followings:
1131 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
1132 moved to their own dev sysctl nodes, for example:
1133 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
1134 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
1135 own chardev in the form of "dsp%d.<function>%d", where <function>
1136 is p = playback, r = record and v = virtual, respectively. Users
1137 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
1138 This does not affect those who are using "/dev/dsp".
1141 geom(4)'s gmirror(8) class metadata structure has been
1142 rev'd from v3 to v4. If you update across this point and
1143 your metadata is converted for you, you will not be easily
1144 able to downgrade since the /boot/kernel.old/geom_mirror.ko
1145 kernel module will be unable to read the v4 metadata. You
1146 can resolve this by doing from the loader(8) prompt:
1148 set vfs.root.mountfrom="ufs:/dev/XXX"
1150 where XXX is the root slice of one of the disks that composed
1151 the mirror (i.e.: /dev/ad0s1a). You can then rebuild
1152 the array the same way you built it originally.
1155 The following binaries have been disconnected from the build:
1156 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
1157 and mount_std. The functionality of these programs has been
1158 moved into the mount program. For example, to mount a devfs
1159 filesystem, instead of using mount_devfs, use: "mount -t devfs".
1160 This does not affect entries in /etc/fstab, since entries in
1161 /etc/fstab are always processed with "mount -t fstype".
1164 Support for PCI Message Signalled Interrupts on i386 and amd64
1165 has been added to the kernel and various drivers will soon be
1166 updated to use MSI when it is available. If there are any problems,
1167 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
1168 and 'hw.pci.enable_msix' tunables to 0 in the loader.
1171 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
1172 The lockmgr object layout has been changed as a result of having
1173 a lock_object embedded in it. As a consequence all file system
1174 kernel modules must be re-compiled. The mutex profiling man page
1175 has not yet been updated to reflect this change.
1178 KSE in the kernel has now been made optional and turned on by
1179 default. Use 'nooption KSE' in your kernel config to turn it
1180 off. All kernel modules *must* be recompiled after this change.
1181 There-after, modules from a KSE kernel should be compatible with
1182 modules from a NOKSE kernel due to the temporary padding fields
1183 added to 'struct proc'.
1186 mrouted and its utilities have been removed from the base system.
1189 Some ioctl(2) command codes have changed. Full backward ABI
1190 compatibility is provided if the "options COMPAT_FREEBSD6" is
1191 present in the kernel configuration file. Make sure to add
1192 this option to your kernel config file, or recompile X.Org
1193 and the rest of ports; otherwise they may refuse to work.
1196 tcpslice has been removed from the base system.
1199 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
1200 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
1201 systat needs to be rebuilt.
1204 libpcap updated to v0.9.4 and tcpdump to v3.9.4
1207 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
1208 for IPFIREWALL_FORWARD is now as it was before when it was first
1209 committed and for years after. The behaviour is now ON.
1212 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
1213 Now it can decrypt files created from different architectures.
1214 Unfortunately, it is no longer able to decrypt a cipher text
1215 generated with an older version on 64 bit architectures.
1216 If you have such a file, you need old utility to decrypt it.
1219 The interface version of the i4b kernel part has changed. So
1220 after updating the kernel sources and compiling a new kernel,
1221 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
1222 be rebuilt, and vice versa.
1225 The XBOX kernel now defaults to the nfe(4) driver instead of
1226 the nve(4) driver. Please update your configuration
1230 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
1231 PCnet family of NICs has been removed. The new le(4) driver serves
1232 as an equivalent but cross-platform replacement with the pcn(4)
1233 driver still providing performance-optimized support for the subset
1234 of AMD Am79C971 PCnet-FAST and greater chips as before.
1237 The machdep.* sysctls and the adjkerntz utility have been
1238 modified a bit. The new adjkerntz utility uses the new
1239 sysctl names and sysctlbyname() calls, so it may be impossible
1240 to run an old /sbin/adjkerntz utility in single-user mode
1241 with a new kernel. Replace the `adjkerntz -i' step before
1242 `make installworld' with:
1244 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
1246 and proceed as usual with the rest of the installworld-stage
1247 steps. Otherwise, you risk installing binaries with their
1248 timestamp set several hours in the future, especially if
1249 you are running with local time set to GMT+X hours.
1252 The ip6fw utility has been removed. The behavior provided by
1253 ip6fw has been in ipfw2 for a good while and the rc.d scripts
1254 have been updated to deal with it. There are some rules that
1255 might not migrate cleanly. Use rc.firewall6 as a template to
1259 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
1260 attachments have been removed. Make sure to configure scc(4)
1261 on sparc64. Note also that by default puc(4) will use uart(4)
1262 and not sio(4) for serial ports because interrupt handling has
1263 been optimized for multi-port serial cards and only uart(4)
1264 implements the interface to support it.
1267 The scc(4) driver replaces puc(4) for Serial Communications
1268 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
1269 Z8530. On sparc64, it is advised to add scc(4) to the kernel
1270 configuration to make sure that the serial ports remain
1274 Most world/kernel related NO_* build options changed names.
1275 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
1276 after FreeBSD ports) and should be set in /etc/src.conf
1277 (the src.conf(5) manpage is provided). Full backwards
1278 compatibility is maintained for the time being though it's
1279 highly recommended to start moving old options out of the
1280 system-wide /etc/make.conf file into the new /etc/src.conf
1281 while also properly renaming them. More conversions will
1282 likely follow. Posting to current@:
1284 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
1287 The NETSMBCRYPTO kernel option has been retired because its
1288 functionality is always included in NETSMB and smbfs.ko now.
1291 The TDFX_LINUX kernel option was retired and replaced by the
1292 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
1293 kernel module. Loading it alone should suffice to get 3dfx support
1294 for Linux apps because it will pull in 3dfx.ko and linux.ko through
1298 The 'audit' group was added to support the new auditing functionality
1299 in the base system. Be sure to follow the directions for updating,
1300 including the requirement to run mergemaster -p.
1303 The kernel ABI to file system modules was changed on i386.
1304 Please make sure that your kernel and modules are in sync.
1307 This actually occured some time ago, but installing the kernel
1308 now also installs a bunch of symbol files for the kernel modules.
1309 This increases the size of /boot/kernel to about 67Mbytes. You
1310 will need twice this if you will eventually back this up to kernel.old
1311 on your next install.
1312 If you have a shortage of room in your root partition, you should add
1313 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
1314 to your /etc/make.conf.
1317 libc's malloc implementation has been replaced. This change has the
1318 potential to uncover application bugs that previously went unnoticed.
1319 See the malloc(3) manual page for more details.
1322 The generic netgraph(4) cookie has been changed. If you upgrade
1323 kernel passing this point, you also need to upgrade userland
1324 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
1327 si(4)'s device files now contain the unit number.
1328 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
1331 The kernel ABI was mostly destroyed due to a change in the size
1332 of struct lock_object which is nested in other structures such
1333 as mutexes which are nested in all sorts of other structures.
1334 Make sure your kernel and modules are in sync.
1337 The page coloring algorithm in the VM subsystem was converted
1338 from tuning with kernel options to autotuning. Please remove
1339 any PQ_* option except PQ_NOOPT from your kernel config.
1342 The net80211-related tools in the tools/tools/ath directory
1343 have been moved to tools/tools/net80211 and renamed with a
1344 "wlan" prefix. Scripts that use them should be adjusted
1348 Scripts in the local_startup directories (as defined in
1349 /etc/defaults/rc.conf) that have the new rc.d semantics will
1350 now be run as part of the base system rcorder. If there are
1351 errors or problems with one of these local scripts, it could
1352 cause boot problems. If you encounter such problems, boot in
1353 single user mode, remove that script from the */rc.d directory.
1354 Please report the problem to the port's maintainer, and the
1355 freebsd-ports@freebsd.org mailing list.
1358 The nodev mount option was deprecated in RELENG_6 (where it
1359 was a no-op), and is now unsupported. If you have nodev or dev listed
1360 in /etc/fstab, remove it, otherwise it will result in a mount error.
1363 ABI between ipfw(4) and ipfw(8) has been changed. You need
1364 to rebuild ipfw(8) when rebuilding kernel.
1367 rp(4)'s device files now contain the unit number.
1368 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
1371 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
1372 Its /etc/rc.conf.d configuration file has been `ppp' from
1373 the beginning, and hence there is no need to touch it.
1376 Now most modules get their build-time options from the kernel
1377 configuration file. A few modules still have fixed options
1378 due to their non-conformant implementation, but they will be
1379 corrected eventually. You may need to review the options of
1380 the modules in use, explicitly specify the non-default options
1381 in the kernel configuration file, and rebuild the kernel and
1385 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
1386 to turn polling(4) on your interfaces.
1389 The old bridge(4) implementation was retired. The new
1390 if_bridge(4) serves as a full functional replacement.
1393 The ai_addrlen of a struct addrinfo was changed to a socklen_t
1394 to conform to POSIX-2001. This change broke an ABI
1395 compatibility on 64 bit architecture. You have to recompile
1396 userland programs that use getaddrinfo(3) on 64 bit
1400 RELENG_6 branched here.
1403 The pccard_ifconfig rc.conf variable has been removed and a new
1404 variable, ifconfig_DEFAULT has been introduced. Unlike
1405 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
1406 do not have ifconfig_ifn entries rather than just those in
1407 removable_interfaces.
1410 Some previous versions of PAM have permitted the use of
1411 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
1412 to third party PAM modules in /usr/local/lib. A change has been
1413 made to require the use of absolute paths in order to avoid
1414 ambiguity and dependence on library path configuration, which may
1415 affect existing configurations.
1418 Major changes to network interface API. All drivers must be
1419 recompiled. Drivers not in the base system will need to be
1420 updated to the new APIs.
1423 Changes were made to kinfo_proc in sys/user.h. Please recompile
1424 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
1425 will not behave correctly.
1427 The API and ABI for hwpmc(4) have changed with the addition
1428 of sampling support. Please recompile lib/libpmc(3) and
1429 usr.sbin/{pmcstat,pmccontrol}.
1432 The OpenBSD dhclient was imported in place of the ISC dhclient
1433 and the network interface configuration scripts were updated
1434 accordingly. If you use DHCP to configure your interfaces, you
1435 must now run devd. Also, DNS updating was lost so you will need
1436 to find a workaround if you use this feature.
1438 The '_dhcp' user was added to support the OpenBSD dhclient. Be
1439 sure to run mergemaster -p (like you are supposed to do every time
1443 if_bridge was added to the tree. This has changed struct ifnet.
1444 Please recompile userland and all network related modules.
1447 The n_net of a struct netent was changed to an uint32_t, and
1448 1st argument of getnetbyaddr() was changed to an uint32_t, to
1449 conform to POSIX-2001. These changes broke an ABI
1450 compatibility on 64 bit architecture. With these changes,
1451 shlib major of libpcap was bumped. You have to recompile
1452 userland programs that use getnetbyaddr(3), getnetbyname(3),
1453 getnetent(3) and/or libpcap on 64 bit architecture.
1456 Kernel parsing of extra options on '#!' first lines of shell
1457 scripts has changed. Lines with multiple options likely will
1458 fail after this date. For full details, please see
1459 http://people.freebsd.org/~gad/Updating-20050528.txt
1462 The packet filter (pf) code has been updated to OpenBSD 3.7
1463 Please note the changed anchor syntax and the fact that
1464 authpf(8) now needs a mounted fdescfs(5) to function.
1467 The NO_MIXED_MODE kernel option has been removed from the i386
1468 amd64 platforms as its use has been superceded by the new local
1469 APIC timer code. Any kernel config files containing this option
1473 The on-disk format of LC_CTYPE files was changed to be machine
1474 independent. Please make sure NOT to use NO_CLEAN buildworld
1475 when crossing this point. Crossing this point also requires
1476 recompile or reinstall of all locale depended packages.
1479 The ifi_epoch member of struct if_data has been changed to
1480 contain the uptime at which the interface was created or the
1481 statistics zeroed rather then the wall clock time because
1482 wallclock time may go backwards. This should have no impact
1483 unless an snmp implementation is using this value (I know of
1484 none at this point.)
1487 The acpi_perf and acpi_throttle drivers are now part of the
1488 acpi(4) main module. They are no longer built separately.
1491 The layout of struct image_params has changed. You have to
1492 recompile all compatibility modules (linux, svr4, etc) for use
1493 with the new kernel.
1496 The p4tcc driver has been merged into cpufreq(4). This makes
1497 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
1498 compile in "device cpufreq" to restore this functionality.
1501 The responsibility of recomputing the file system summary of
1502 a SoftUpdates-enabled dirty volume has been transferred to the
1503 background fsck. A rebuild of fsck(8) utility is recommended
1504 if you have updated the kernel.
1506 To get the old behavior (recompute file system summary at mount
1507 time), you can set vfs.ffs.compute_summary_at_mount=1 before
1508 mounting the new volume.
1511 The cpufreq import is complete. As part of this, the sysctls for
1512 acpi(4) throttling have been removed. The power_profile script
1513 has been updated, so you can use performance/economy_cpu_freq in
1514 rc.conf(5) to set AC on/offline cpu frequencies.
1517 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
1518 requires recompiling libnetgraph and userland netgraph utilities.
1521 Support for abbreviated forms of a number of ipfw options is
1522 now deprecated. Warnings are printed to stderr indicating the
1523 correct full form when a match occurs. Some abbreviations may
1524 be supported at a later date based on user feedback. To be
1525 considered for support, abbreviations must be in use prior to
1526 this commit and unlikely to be confused with current key words.
1529 By a popular demand, a lot of NOFOO options were renamed
1530 to NO_FOO (see bsd.compat.mk for a full list). The old
1531 spellings are still supported, but will cause annoying
1532 warnings on stderr. Make sure you upgrade properly (see
1533 the COMMON ITEMS: section later in this file).
1536 Auto-loading of ancillary wlan modules such as wlan_wep has
1537 been temporarily disabled; you need to statically configure
1538 the modules you need into your kernel or explicitly load them
1539 prior to use. Specifically, if you intend to use WEP encryption
1540 with an 802.11 device load/configure wlan_wep; if you want to
1541 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
1542 and wlan_xauth as required.
1545 The behaviour of ppp(8) has changed slightly. If lqr is enabled
1546 (``enable lqr''), older versions would revert to LCP ECHO mode on
1547 negotiation failure. Now, ``enable echo'' is required for this
1548 behaviour. The ppp version number has been bumped to 3.4.2 to
1552 The wlan support has been updated to split the crypto support
1553 into separate modules. For static WEP you must configure the
1554 wlan_wep module in your system or build and install the module
1555 in place where it can be loaded (the kernel will auto-load
1556 the module when a wep key is configured).
1559 The ath driver has been updated to split the tx rate control
1560 algorithm into a separate module. You need to include either
1561 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
1564 Support for systems with an 80386 CPU has been removed. Please
1565 use FreeBSD 5.x or earlier on systems with an 80386.
1568 We have had a hack which would mount the root filesystem
1569 R/W if the device were named 'md*'. As part of the vnode
1570 work I'm doing I have had to remove this hack. People
1571 building systems which use preloaded MD root filesystems
1572 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
1573 their /etc/rc scripts.
1576 FreeBSD 5.3 shipped here.
1579 The size of struct tcpcb has changed again due to the removal
1580 of RFC1644 T/TCP. You have to recompile userland programs that
1581 read kmem for tcp sockets directly (netstat, sockstat, etc.)
1584 The size of struct tcpcb has changed. You have to recompile
1585 userland programs that read kmem for tcp sockets directly
1586 (netstat, sockstat, etc.)
1589 RELENG_5 branched here. For older entries, please see updating
1590 in the RELENG_5 branch.
1596 Avoid using make -j when upgrading. From time to time in the
1597 past there have been problems using -j with buildworld and/or
1598 installworld. This is especially true when upgrading between
1599 "distant" versions (eg one that cross a major release boundary
1600 or several minor releases, or when several months have passed
1601 on the -current branch).
1603 Sometimes, obscure build problems are the result of environment
1604 poisoning. This can happen because the make utility reads its
1605 environment when searching for values for global variables.
1606 To run your build attempts in an "environmental clean room",
1607 prefix all make commands with 'env -i '. See the env(1) manual
1608 page for more details.
1610 When upgrading from one major version to another it is generally
1611 best to upgrade to the latest code in the currently installed branch
1612 first, then do an upgrade to the new branch. This is the best-tested
1613 upgrade path, and has the highest probability of being successful.
1614 Please try this approach before reporting problems with a major
1619 If you are updating from a prior version of FreeBSD (even one just
1620 a few days old), you should follow this procedure. It is the most
1621 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
1623 make kernel-toolchain
1624 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
1625 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
1627 To test a kernel once
1628 ---------------------
1629 If you just want to boot a kernel once (because you are not sure
1630 if it works, or if you want to boot a known bad kernel to provide
1631 debugging information) run
1632 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
1633 nextboot -k testkernel
1635 To just build a kernel when you know that it won't mess you up
1636 --------------------------------------------------------------
1637 This assumes you are already running a 5.X system. Replace
1638 ${arch} with the architecture of your machine (e.g. "i386",
1639 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
1641 cd src/sys/${arch}/conf
1642 config KERNEL_NAME_HERE
1643 cd ../compile/KERNEL_NAME_HERE
1648 If this fails, go to the "To build a kernel" section.
1650 To rebuild everything and install it on the current system.
1651 -----------------------------------------------------------
1652 # Note: sometimes if you are running current you gotta do more than
1653 # is listed here if you are upgrading from a really old current.
1655 <make sure you have good level 0 dumps>
1657 make kernel KERNCONF=YOUR_KERNEL_HERE
1659 <reboot in single user> [3]
1667 To cross-install current onto a separate partition
1668 --------------------------------------------------
1669 # In this approach we use a separate partition to hold
1670 # current's root, 'usr', and 'var' directories. A partition
1671 # holding "/", "/usr" and "/var" should be about 2GB in
1674 <make sure you have good level 0 dumps>
1677 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1678 <maybe newfs current's root partition>
1679 <mount current's root partition on directory ${CURRENT_ROOT}>
1680 make installworld DESTDIR=${CURRENT_ROOT}
1681 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1682 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1683 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
1684 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1685 <reboot into current>
1686 <do a "native" rebuild/install as described in the previous section>
1687 <maybe install compatibility libraries from ports/misc/compat*>
1691 To upgrade in-place from 5.x-stable to current
1692 ----------------------------------------------
1693 <make sure you have good level 0 dumps>
1695 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
1697 <reboot in single user> [3]
1704 Make sure that you've read the UPDATING file to understand the
1705 tweaks to various things you need. At this point in the life
1706 cycle of current, things change often and you are on your own
1707 to cope. The defaults can also change, so please read ALL of
1708 the UPDATING entries.
1710 Also, if you are tracking -current, you must be subscribed to
1711 freebsd-current@freebsd.org. Make sure that before you update
1712 your sources that you have read and understood all the recent
1713 messages there. If in doubt, please track -stable which has
1714 much fewer pitfalls.
1716 [1] If you have third party modules, such as vmware, you
1717 should disable them at this point so they don't crash your
1720 [3] From the bootblocks, boot -s, and then do
1725 adjkerntz -i # if CMOS is wall time
1726 Also, when doing a major release upgrade, it is required that
1727 you boot into single user mode to do the installworld.
1729 [4] Note: This step is non-optional. Failure to do this step
1730 can result in a significant reduction in the functionality of the
1731 system. Attempting to do it by hand is not recommended and those
1732 that pursue this avenue should read this file carefully, as well
1733 as the archives of freebsd-current and freebsd-hackers mailing lists
1734 for potential gotchas.
1736 [5] Usually this step is a noop. However, from time to time
1737 you may need to do this if you get unknown user in the following
1738 step. It never hurts to do it all the time. You may need to
1739 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1740 install) after the buildworld before this step if you last updated
1741 from current before 20020224 or from -stable before 20020408.
1743 [8] In order to have a kernel that can run the 4.x binaries
1744 needed to do an installworld, you must include the COMPAT_FREEBSD4
1745 option in your kernel. Failure to do so may leave you with a system
1746 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
1747 is required to run the 5.x binaries on more recent kernels.
1749 Make sure that you merge any new devices from GENERIC since the
1750 last time you updated your kernel config file.
1752 [9] When checking out sources, you must include the -P flag to have
1753 cvs prune empty directories.
1755 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1756 "?=" instead of the "=" assignment operator, so that buildworld can
1757 override the CPUTYPE if it needs to.
1759 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1760 not on the command line, or in /etc/make.conf. buildworld will
1761 warn if it is improperly defined.
1764 This file contains a list, in reverse chronological order, of major
1765 breakages in tracking -current. Not all things will be listed here,
1766 and it only starts on October 16, 2004. Updating files can found in
1767 previous releases if your system is older than this.
1769 Copyright information:
1771 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
1773 Redistribution, publication, translation and use, with or without
1774 modification, in full or in part, in any form or format of this
1775 document are permitted without further permission from the author.
1777 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1778 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1779 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1780 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1781 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1782 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1783 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1784 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1785 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1786 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1787 POSSIBILITY OF SUCH DAMAGE.
1789 If you find this document useful, and you want to, you may buy the
1792 Contact Warner Losh if you have any questions about your use of