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.
22 802.11s D3.03 support was committed. This is incompatible with
23 the previous code, which was based on D3.0.
26 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
27 mount(8) and -a option for df(1) to see them.
30 Remove the option STOP_NMI. The default action is now to use NMI
31 only for KDB via the newly introduced function stop_cpus_hard()
32 and maintain stop_cpus() to just use a normal IPI_STOP on ia32
39 Bump the shared library version numbers for all libraries that
40 do not use symbol versioning as part of the 8.0-RELEASE cycle.
41 Bump __FreeBSD_version to 800105.
44 Due to changes in the implementation of virtual network stack
45 support, all network-related kernel modules must be recompiled.
46 As this change breaks the ABI, bump __FreeBSD_version to 800104.
49 The TOE interface to the TCP syncache has been modified to remove struct
50 tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. The
51 cxgb driver is the only TOE consumer affected by this change, and needs
52 to be recompiled along with the kernel. As this change breaks the ABI,
53 bump __FreeBSD_version to 800103.
56 Padding has been added to struct tcpcb, sackhint and tcpstat in
57 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
58 maintainig the ABI. However, this change breaks the ABI, so bump
59 __FreeBSD_version to 800102. User space tools that rely on the size of
60 any of these structs (e.g. sockstat) need to be recompiled.
63 The NFS_LEGACYRPC option has been removed along with the old
64 kernel RPC implementation that this option selected. Kernel
65 configurations may need to be adjusted.
68 The network interface device nodes at /dev/net/<interface> have
69 been removed. All ioctl operations can be performed the normal
70 way using routing sockets. The kqueue functionality can
71 generally be replaced with routing sockets.
74 The documentation from the FreeBSD Documentation Project
75 (Handbook, FAQ, etc.) is now installed via packages by
76 sysinstall(8) and under the /usr/local/share/doc/freebsd
77 directory instead of /usr/share/doc.
80 The ABI of various structures related to the SYSV IPC API have
81 been changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43
82 kernel options now all require COMPAT_FREEBSD7.
83 Bump __FreeBSD_version to 800100.
86 Layout of struct vnet has changed as routing related variables
87 were moved to their own Vimage module. Modules need to be
88 recompiled. Bump __FreeBSD_version to 800099.
91 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023
92 and 1024 respectively. As long as no more than 16 groups per
93 process are used, no changes should be visible. When more
94 than 16 groups are used, old binaries may fail if they call
95 getgroups() or getgrouplist() with statically sized storage.
96 Recompiling will work around this, but applications should be
97 modified to use dynamically allocated storage for group arrays
98 as POSIX.1-2008 does not cap an implementation's number of
99 supported groups at NGROUPS_MAX+1 as previous versions did.
101 NFS and portalfs mounts may also be affected as the list of
102 groups is truncated to 16. Users of NFS who use more than 16
103 groups, should take care that negative group permissions are not
104 used on the exported file systems as they will not be reliable
105 unless a GSSAPI based authentication method is used.
108 The compiling option ADAPTIVE_LOCKMGRS has been introduced.
109 This option compiles in the support for adaptive spinning for lockmgrs
110 which want to enable it. The lockinit() function now accepts the
111 flag LK_ADAPTIVE in order to make the lock object subject to
112 adaptive spinning when both held in write and read mode.
115 The layout of the structure returned by IEEE80211_IOC_STA_INFO
116 has changed. User applications that use this ioctl need to be
120 The layout of struct thread has changed. Kernel and modules
124 The layout of structs ifnet, domain, protosw and vnet_net has
125 changed. Kernel modules need to be rebuilt.
126 Bump __FreeBSD_version to 800097.
129 window(1) has been removed from the base system. It can now be
130 installed from ports. The port is called misc/window.
133 The way we are storing and accessing `routing table' entries
134 has changed. Programs reading the FIB, like netstat, need to
138 A new netisr implementation has been added for FreeBSD 8. Network
139 file system modules, such as igmp, ipdivert, and others, should be
141 Bump __FreeBSD_version to 800096.
144 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose
148 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
149 Bump __FreeBSD_version to 800094.
152 Add mnt_xflag field to 'struct mount'. File system modules
154 Bump __FreeBSD_version to 800093.
157 The compiling option ADAPTIVE_SX has been retired while it has been
158 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
159 The KPI for sx_init_flags() changes as accepting flags:
160 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag
161 has been introduced in order to handle the reversed logic.
162 Bump __FreeBSD_version to 800092.
165 Add support for hierarchical jails. Remove global securelevel.
166 Bump __FreeBSD_version to 800091.
169 The layout of struct vnet_net has changed, therefore modules
171 Bump __FreeBSD_version to 800090.
174 The newly imported zic(8) produces a new format in the
175 output. Please run tzsetup(8) to install the newly created
176 data to /etc/localtime.
179 The sysctl tree for the usb stack has renamed from hw.usb2.* to
180 hw.usb.* and is now consistent again with previous releases.
183 802.11 monitor mode support was revised and driver api's
184 were changed. Drivers dependent on net80211 now support
185 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No
186 user-visible data structures were changed but applications
187 that use DLT_IEEE802_11 may require changes.
188 Bump __FreeBSD_version to 800088.
191 The layout of the following structs has changed: sysctl_oid,
192 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
193 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
194 panics may be experienced. World rebuild is required for
195 correctly checking networking state from userland.
196 Bump __FreeBSD_version to 800085.
199 MLDv2 and Source-Specific Multicast (SSM) have been merged
200 to the IPv6 stack. VIMAGE hooks are in but not yet used.
201 The implementation of SSM within FreeBSD's IPv6 stack closely
202 follows the IPv4 implementation.
204 For kernel developers:
206 * The most important changes are that the ip6_output() and
207 ip6_input() paths no longer take the IN6_MULTI_LOCK,
208 and this lock has been downgraded to a non-recursive mutex.
210 * As with the changes to the IPv4 stack to support SSM, filtering
211 of inbound multicast traffic must now be performed by transport
212 protocols within the IPv6 stack. This does not apply to TCP and
213 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
215 * The KPIs used by IPv6 multicast are similar to those used by
216 the IPv4 stack, with the following differences:
217 * im6o_mc_filter() is analogous to imo_multicast_filter().
218 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
219 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
220 * IN6_LOOKUP_MULTI() has been deprecated and removed.
221 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
222 for MLDv1 have an additional 'timer' argument which is used to
223 jitter the initial membership report for the solicited-node
224 multicast membership on-link.
225 * This is not strictly needed for MLDv2, which already jitters
226 its report transmissions. However, the 'timer' argument is
227 preserved in case MLDv1 is active on the interface.
229 * The KAME linked-list based IPv6 membership implementation has
230 been refactored to use a vector similar to that used by the IPv4
232 Code which maintains a list of its own multicast memberships
233 internally, e.g. carp, has been updated to reflect the new
236 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
237 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
238 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
239 implementation constraint which needs to be addressed in HEAD.
241 For application developers:
243 * The changes are broadly similar to those made for the IPv4
246 * The use of IPv4 and IPv6 multicast socket options on the same
247 socket, using mapped addresses, HAS NOT been tested or supported.
249 * There are a number of issues with the implementation of various
250 IPv6 multicast APIs which need to be resolved in the API surface
251 before the implementation is fully compatible with KAME userland
252 use, and these are mostly to do with interface index treatment.
254 * The literature available discusses the use of either the delta / ASM
255 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
256 using setsourcefilter(3)/getsourcefilter(3). For more information
257 please refer to RFC 3768, 'Socket Interface Extensions for
258 Multicast Source Filters'.
260 * Applications which use the published RFC 3678 APIs should be fine.
262 For systems administrators:
264 * The mtest(8) utility has been refactored to support IPv6, in
265 addition to IPv4. Interface addresses are no longer accepted
266 as arguments, their names must be used instead. The utility
267 will map the interface name to its first IPv4 address as
268 returned by getifaddrs(3).
270 * The ifmcstat(8) utility has also been updated to print the MLDv2
271 endpoint state and source filter lists via sysctl(3).
273 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
274 loopback of IPv6 multicast datagrams by default; it defaults to 1
275 to preserve the existing behaviour. Disabling multicast loopback is
276 recommended for optimal system performance.
278 * The IPv6 MROUTING code has been changed to examine this sysctl
279 instead of attempting to perform a group lookup before looping
280 back forwarded datagrams.
282 Bump __FreeBSD_version to 800084.
285 Implement low-level Bluetooth HCI API.
286 Bump __FreeBSD_version to 800083.
289 The layout of struct malloc_type, used by modules to register new
290 memory allocation types, has changed. Most modules will need to
291 be rebuilt or panics may be experienced.
292 Bump __FreeBSD_version to 800081.
295 Anticipate overflowing inp_flags - add inp_flags2.
296 This changes most offsets in inpcb, so checking v4 connection
297 state will require a world rebuild.
298 Bump __FreeBSD_version to 800080.
301 Add an llentry to struct route and struct route_in6. Modules
302 embedding a struct route will need to be recompiled.
303 Bump __FreeBSD_version to 800079.
306 The size of rt_metrics_lite and by extension rtentry has changed.
307 Networking administration apps will need to be recompiled.
308 The route command now supports show as an alias for get, weighting
309 of routes, sticky and nostick flags to alter the behavior of stateful
311 Bump __FreeBSD_version to 800078.
314 Do not use Giant for kbdmux(4) locking. This is wrong and
315 apparently causing more problems than it solves. This will
316 re-open the issue where interrupt handlers may race with
317 kbdmux(4) in polling mode. Typical symptoms include (but
318 not limited to) duplicated and/or missing characters when
319 low level console functions (such as gets) are used while
320 interrupts are enabled (for example geli password prompt,
321 mountroot prompt etc.). Disabling kbdmux(4) may help.
324 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
325 kernel modules referencing any of the above need to be recompiled.
326 Bump __FreeBSD_version to 800075.
329 GEOM_PART has become the default partition slicer for storage devices,
330 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
331 introduces some changes:
333 MSDOS/EBR: the devices created from MSDOS extended partition entries
334 (EBR) can be named differently than with GEOM_MBR and are now symlinks
335 to devices with offset-based names. fstabs may need to be modified.
337 BSD: the "geometry does not match label" warning is harmless in most
338 cases but it points to problems in file system misalignment with
339 disk geometry. The "c" partition is now implicit, covers the whole
340 top-level drive and cannot be (mis)used by users.
342 General: Kernel dumps are now not allowed to be written to devices
343 whose partition types indicate they are meant to be used for file
344 systems (or, in case of MSDOS partitions, as something else than
347 Most of these changes date approximately from 200812.
350 The uscanner(4) driver has been removed from the kernel. This follows
351 Linux removing theirs in 2.6 and making libusb the default interface
355 The multicast forwarding code has been cleaned up. netstat(1)
356 only relies on KVM now for printing bandwidth upcall meters.
357 The IPv4 and IPv6 modules are split into ip_mroute_mod and
358 ip6_mroute_mod respectively. The config(5) options for statically
359 compiling this code remain the same, i.e. 'options MROUTING'.
362 Support for the IFF_NEEDSGIANT network interface flag has been
363 removed, which means that non-MPSAFE network device drivers are no
364 longer supported. In particular, if_ar, if_sr, and network device
365 drivers from the old (legacy) USB stack can no longer be built or
369 POSIX.1 Native Language Support (NLS) has been enabled in libc and
370 a bunch of new language catalog files have also been added.
371 This means that some common libc messages are now localized and
372 they depend on the LC_MESSAGES environmental variable.
375 The k8temp(4) driver has been renamed to amdtemp(4) since
376 support for K10 and K11 CPU families was added.
379 IGMPv3 and Source-Specific Multicast (SSM) have been merged
380 to the IPv4 stack. VIMAGE hooks are in but not yet used.
382 For kernel developers, the most important changes are that the
383 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
384 and this lock has been downgraded to a non-recursive mutex.
386 Transport protocols (UDP, Raw IP) are now responsible for filtering
387 inbound multicast traffic according to group membership and source
388 filters. The imo_multicast_filter() KPI exists for this purpose.
389 Transports which do not use multicast (SCTP, TCP) already reject
390 multicast by default. Forwarding and receive performance may improve
391 as a mutex acquisition is no longer needed in the ip_input()
392 low-level input path. in_addmulti() and in_delmulti() are shimmed
393 to new KPIs which exist to support SSM in-kernel.
395 For application developers, it is recommended that loopback of
396 multicast datagrams be disabled for best performance, as this
397 will still cause the lock to be taken for each looped-back
398 datagram transmission. The net.inet.ip.mcast.loop sysctl may
399 be tuned to 0 to disable loopback by default; it defaults to 1
400 to preserve the existing behaviour.
402 For systems administrators, to obtain best performance with
403 multicast reception and multiple groups, it is always recommended
404 that a card with a suitably precise hash filter is used. Hash
405 collisions will still result in the lock being taken within the
406 transport protocol input path to check group membership.
408 If deploying FreeBSD in an environment with IGMP snooping switches,
409 it is recommended that the net.inet.igmp.sendlocal sysctl remain
410 enabled; this forces 224.0.0.0/24 group membership to be announced
413 The size of 'struct igmpstat' has changed; netstat needs to be
414 recompiled to reflect this.
415 Bump __FreeBSD_version to 800070.
418 libusb20.so.1 is now installed as libusb.so.1 and the ports system
419 updated to use it. This requires a buildworld/installworld in order to
420 update the library and dependencies (usbconfig, etc). Its advisable to
421 rebuild all ports which uses libusb. More specific directions are given
422 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
423 libusb are no longer required and can be removed.
426 A workaround is committed to allow the creation of System V shared
427 memory segment of size > 2 GB on the 64-bit architectures.
428 Due to a limitation of the existing ABI, the shm_segsz member
429 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
430 wrong for large segments. Note that limits must be explicitly
431 raised to allow such segments to be created.
434 The layout of struct ifnet has changed, requiring a rebuild of all
435 network device driver modules.
438 The /dev handling for the new USB stack has changed, a
439 buildworld/installworld is required for libusb20.
442 The new USB2 stack has now been permanently moved in and all kernel and
443 module names reverted to their previous values (eg, usb, ehci, ohci,
444 ums, ...). The old usb stack can be compiled in by prefixing the name
445 with the letter 'o', the old usb modules have been removed.
446 Updating entry 20090216 for xorg and 20090215 for libmap may still
450 The rc.conf(5) option if_up_delay has been renamed to
451 defaultroute_delay to better reflect its purpose. If you have
452 customized this setting in /etc/rc.conf you need to update it to
456 xorg 7.4 wants to configure its input devices via hald which does not
457 yet work with USB2. If the keyboard/mouse does not work in xorg then
459 Option "AllowEmptyInput" "off"
460 to your ServerLayout section. This will cause X to use the configured
461 kbd and mouse sections from your xorg.conf.
464 The GENERIC kernels for all architectures now default to the new USB2
465 stack. No kernel config options or code have been removed so if a
466 problem arises please report it and optionally revert to the old USB
467 stack. If you are loading USB kernel modules or have a custom kernel
468 that includes GENERIC then ensure that usb names are also changed over,
469 eg uftdi -> usb2_serial_ftdi.
471 Older programs linked against the ports libusb 0.1 need to be
472 redirected to the new stack's libusb20. /etc/libmap.conf can
474 # Map old usb library to new one for usb2 stack
475 libusb-0.1.so.8 libusb20.so.1
478 The ichsmb(4) driver has been changed to require SMBus slave
479 addresses be left-justified (xxxxxxx0b) rather than right-justified.
480 All of the other SMBus controller drivers require left-justified
481 slave addresses, so this change makes all the drivers provide the
485 INET6 statistics (struct ip6stat) was updated.
486 netstat(1) needs to be recompiled.
489 NTFS has been removed from GENERIC kernel on amd64 to match
490 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
491 will load ntfs.ko module automatically when NTFS support is
492 actually needed, unless ntfs.ko is not installed or security
493 level prohibits loading kernel modules. If either is the case,
494 "options NTFS" has to be added into kernel config.
497 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
498 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
499 800061. User space tools that rely on the size of struct tcpcb in
500 tcp_var.h (e.g. sockstat) need to be recompiled.
503 ng_tty(4) module updated to match the new TTY subsystem.
504 Due to API change, user-level applications must be updated.
505 New API support added to mpd5 CVS and expected to be present
506 in next mpd5.3 release.
509 With __FreeBSD_version 800060 the makefs tool is part of
510 the base system (it was a port).
513 The afdata and ifnet locks have been changed from mutexes to
514 rwlocks, network modules will need to be re-compiled.
517 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
518 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
519 The new code reduced struct rtentry{} by 16 bytes on 32-bit
520 architecture and 40 bytes on 64-bit architecture. The userland
521 applications "arp" and "ndp" have been updated accordingly.
522 The output from "netstat -r" shows only routing entries and
523 none of the L2 information.
526 __FreeBSD_version 800057 marks the switchover from the
527 binary ath hal to source code. Users must add the line:
529 options AH_SUPPORT_AR5416
531 to their kernel config files when specifying:
535 The ath_hal module no longer exists; the code is now compiled
536 together with the driver in the ath module. It is now
537 possible to tailor chip support (i.e. reduce the set of chips
538 and thereby the code size); consult ath_hal(4) for details.
541 __FreeBSD_version 800054 adds memory barriers to
542 <machine/atomic.h>, new interfaces to ifnet to facilitate
543 multiple hardware transmit queues for cards that support
544 them, and a lock-less ring-buffer implementation to
545 enable drivers to more efficiently manage queueing of
549 A new version of ZFS (version 13) has been merged to -HEAD.
550 This version has zpool attribute "listsnapshots" off by
551 default, which means "zfs list" does not show snapshots,
552 and is the same as Solaris behavior.
555 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
558 The uhci, ohci, ehci and slhci USB Host controller drivers have
559 been put into separate modules. If you load the usb module
560 separately through loader.conf you will need to load the
561 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
562 controller add the following to loader.conf:
568 The ABI used by the PMC toolset has changed. Please keep
569 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
573 atapci kernel module now includes only generic PCI ATA
574 driver. AHCI driver moved to ataahci kernel module.
575 All vendor-specific code moved into separate kernel modules:
576 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
577 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
578 atamarvell, atamicron, atanational, atanetcell, atanvidia,
579 atapromise, ataserverworks, atasiliconimage, atasis, atavia
582 The TTY subsystem of the kernel has been replaced by a new
583 implementation, which provides better scalability and an
584 improved driver model. Most common drivers have been migrated to
585 the new TTY subsystem, while others have not. The following
586 drivers have not yet been ported to the new TTY layer:
589 cy, digi, rc, rp, sio
595 ng_h4, ng_tty, ppp, sl, snp
597 Adding these drivers to your kernel configuration file shall
598 cause compilation to fail.
601 ntpd has been upgraded to 4.2.4p5.
604 OpenSSH has been upgraded to 5.1p1.
606 For many years, FreeBSD's version of OpenSSH preferred DSA
607 over RSA for host and user authentication keys. With this
608 upgrade, we've switched to the vendor's default of RSA over
609 DSA. This may cause upgraded clients to warn about unknown
610 host keys even for previously known hosts. Users should
611 follow the usual procedure for verifying host keys before
612 accepting the RSA key.
614 This can be circumvented by setting the "HostKeyAlgorithms"
615 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
618 Please note that the sequence of keys offered for
619 authentication has been changed as well. You may want to
620 specify IdentityFile in a different order to revert this
624 The sio(4) driver has been removed from the i386 and amd64
625 kernel configuration files. This means uart(4) is now the
626 default serial port driver on those platforms as well.
628 To prevent collisions with the sio(4) driver, the uart(4) driver
629 uses different names for its device nodes. This means the
630 onboard serial port will now most likely be called "ttyu0"
631 instead of "ttyd0". You may need to reconfigure applications to
632 use the new device names.
634 When using the serial port as a boot console, be sure to update
635 /boot/device.hints and /etc/ttys before booting the new kernel.
636 If you forget to do so, you can still manually specify the hints
637 at the loader prompt:
639 set hint.uart.0.at="isa"
640 set hint.uart.0.port="0x3F8"
641 set hint.uart.0.flags="0x10"
642 set hint.uart.0.irq="4"
646 The gpt(8) utility has been removed. Use gpart(8) to partition
650 The version that Linuxulator emulates was changed from 2.4.2
651 to 2.6.16. If you experience any problems with Linux binaries
652 please try to set sysctl compat.linux.osrelease to 2.4.2 and
653 if it fixes the problem contact emulation mailing list.
656 ISDN4BSD (I4B) was removed from the src tree. You may need to
657 update a your kernel configuration and remove relevant entries.
660 I have checked in code to support multiple routing tables.
661 See the man pages setfib(1) and setfib(2).
662 This is a hopefully backwards compatible version,
663 but to make use of it you need to compile your kernel
664 with options ROUTETABLES=2 (or more up to 16).
667 The 802.11 wireless support was redone to enable multi-bss
668 operation on devices that are capable. The underlying device
669 is no longer used directly but instead wlanX devices are
670 cloned with ifconfig. This requires changes to rc.conf files.
672 ifconfig_ath0="WPA DHCP"
675 ifconfig_wlan0="WPA DHCP"
676 see rc.conf(5) for more details. In addition, mergemaster of
677 /etc/rc.d is highly recommended. Simultaneous update of userland
678 and kernel wouldn't hurt either.
680 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
681 modules were merged into the base wlan module. All references
682 to these modules (e.g. in kernel config files) must be removed.
685 psm(4) has gained write(2) support in native operation level.
686 Arbitrary commands can be written to /dev/psm%d and status can
687 be read back from it. Therefore, an application is responsible
688 for status validation and error recovery. It is a no-op in
689 other operation levels.
692 Support for KSE threading has been removed from the kernel. To
693 run legacy applications linked against KSE libmap.conf may
694 be used. The following libmap.conf may be used to ensure
695 compatibility with any prior release:
697 libpthread.so.1 libthr.so.1
698 libpthread.so.2 libthr.so.2
699 libkse.so.3 libthr.so.3
702 The layout of struct vmspace has changed. This affects libkvm
703 and any executables that link against libkvm and use the
704 kvm_getprocs() function. In particular, but not exclusively,
705 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
706 The effects are minimal, but it's advisable to upgrade world
710 The latest em driver no longer has support in it for the
711 82575 adapter, this is now moved to the igb driver. The
712 split was done to make new features that are incompatible
713 with older hardware easier to do.
716 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
717 likewise the kernel option is now GEOM_LINUX_LVM.
720 The default NFS mount mode has changed from UDP to TCP for
721 increased reliability. If you rely on (insecurely) NFS
722 mounting across a firewall you may need to update your
726 Belatedly note the addition of m_collapse for compacting
730 The fts(3) structures have been changed to use adequate
731 integer types for their members and so to be able to cope
732 with huge file trees. The old fts(3) ABI is preserved
733 through symbol versioning in libc, so third-party binaries
734 using fts(3) should still work, although they will not take
735 advantage of the extended types. At the same time, some
736 third-party software might fail to build after this change
737 due to unportable assumptions made in its source code about
738 fts(3) structure members. Such software should be fixed
739 by its vendor or, in the worst case, in the ports tree.
740 FreeBSD_version 800015 marks this change for the unlikely
741 case that a portable fix is impossible.
744 To upgrade to -current after this date, you must be running
745 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
746 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
749 The ADAPTIVE_GIANT kernel option has been retired because its
750 functionality is the default now.
753 The AT keyboard emulation of sunkbd(4) has been turned on
754 by default. In order to make the special symbols of the Sun
755 keyboards driven by sunkbd(4) work under X these now have
756 to be configured the same way as Sun USB keyboards driven
757 by ukbd(4) (which also does AT keyboard emulation), f.e.:
759 Option "XkbLayout" "us"
760 Option "XkbRules" "xorg"
761 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
764 It has been decided that it is desirable to provide ABI
765 backwards compatibility to the FreeBSD 4/5/6 versions of the
766 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
767 broken with the introduction of PCI domain support (see the
768 20070930 entry). Unfortunately, this required the ABI of
769 PCIOCGETCONF to be broken again in order to be able to
770 provide backwards compatibility to the old version of that
771 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
772 again. As for prominent ports this affects neither pciutils
773 nor xorg-server this time, the hal port needs to be rebuilt
777 The misnamed kthread_create() and friends have been renamed
778 to kproc_create() etc. Many of the callers already
780 I will return kthread_create() and friends in a while
781 with implementations that actually create threads, not procs.
782 Renaming corresponds with version 800002.
788 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
789 WITHOUT_LIBTHR are set.
792 The PCI code has been made aware of PCI domains. This means that
793 the location strings as used by pciconf(8) etc are now in the
794 following format: pci<domain>:<bus>:<device>[:<function>]. It
795 also means that consumers of <sys/pciio.h> potentially need to
796 be recompiled; this includes the hal and xorg-server ports.
799 The caching daemon (cached) was renamed to nscd. nscd.conf
800 configuration file should be used instead of cached.conf and
801 nscd_enable, nscd_pidfile and nscd_flags options should be used
802 instead of cached_enable, cached_pidfile and cached_flags in
806 The getfacl(1) utility now prints owning user and group name
807 instead of owning uid and gid in the three line comment header.
808 This is the same behavior as getfacl(1) on Solaris and Linux.
811 The new IPsec code is now compiled in using the IPSEC option. The
812 IPSEC option now requires "device crypto" be defined in your kernel
813 configuration. The FAST_IPSEC kernel option is now deprecated.
816 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
817 note the changed syntax - keep state is now on by default. Also
818 note the fact that ftp-proxy(8) has been changed from bottom up and
819 has been moved from libexec to usr/sbin. Changes in the ALTQ
820 handling also affect users of IPFW's ALTQ capabilities.
823 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
824 only IPsec supported by FreeBSD. The new IPsec stack
825 supports both IPv4 and IPv6. The kernel option will change
826 after the code changes have settled in. For now the kernel
827 option IPSEC is deprecated and FAST_IPSEC is the only option, that
828 will change after some settling time.
831 The wicontrol(8) utility has been removed from the base system. wi(4)
832 cards should be configured using ifconfig(8), see the man page for more
836 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
837 instead of the nve(4) driver. Please update your configuration
841 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
842 database if it is missing or older than the aliases file. If
843 desired, set the new rc.conf option sendmail_rebuild_aliases
844 to "YES" to restore that functionality.
847 The IPv4 multicast socket code has been considerably modified, and
848 moved to the file sys/netinet/in_mcast.c. Initial support for the
849 RFC 3678 Source-Specific Multicast Socket API has been added to
850 the IPv4 network stack.
852 Strict multicast and broadcast reception is now the default for
853 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
854 has now been removed.
856 The RFC 1724 hack for interface selection has been removed; the use
857 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
858 been added to replace it. Consumers such as routed will soon be
859 updated to reflect this.
861 These changes affect users who are running routed(8) or rdisc(8)
862 from the FreeBSD base system on point-to-point or unnumbered
866 The net80211 layer has changed significantly and all wireless
867 drivers that depend on it need to be recompiled. Further these
868 changes require that any program that interacts with the wireless
869 support in the kernel be recompiled; this includes: ifconfig,
870 wpa_supplicant, hostapd, and wlanstats. Users must also, for
871 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
872 if they use modules for wireless support. These modules implement
873 scanning support for station and ap modes, respectively. Failure
874 to load the appropriate module before marking a wireless interface
875 up will result in a message to the console and the device not
879 The pam_nologin(8) module ceases to provide an authentication
880 function and starts providing an account management function.
881 Consequent changes to /etc/pam.d should be brought in using
882 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
883 need manual editing as follows. Locate this line (or similar):
885 auth required pam_nologin.so no_warn
887 and change it according to this example:
889 account required pam_nologin.so no_warn
891 That is, the first word needs to be changed from "auth" to
892 "account". The new line can be moved to the account section
893 within the file for clarity. Not updating pam.conf(5) files
894 will result in nologin(5) ignored by the respective services.
897 The ether_ioctl() function has been synchronized with ioctl(2)
898 and ifnet.if_ioctl. Due to that, the size of one of its arguments
899 has changed on 64-bit architectures. All kernel modules using
900 ether_ioctl() need to be rebuilt on such architectures.
903 Improved INCLUDE_CONFIG_FILE support has been introduced to the
904 config(8) utility. In order to take advantage of this new
905 functionality, you are expected to recompile and install
906 src/usr.sbin/config. If you don't rebuild config(8), and your
907 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
908 build will be broken because of a missing "kernconfstring"
912 Symbol versioning is enabled by default. To disable it, use
913 option WITHOUT_SYMVER. It is not advisable to attempt to
914 disable symbol versioning once it is enabled; your installworld
915 will break because a symbol version-less libc will get installed
916 before the install tools. As a result, the old install tools,
917 which previously had symbol dependencies to FBSD_1.0, will fail
918 because the freshly installed libc will not have them.
920 The default threading library (providing "libpthread") has been
921 changed to libthr. If you wish to have libkse as your default,
922 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
925 The ABI breakage in sendmail(8)'s libmilter has been repaired
926 so it is no longer necessary to recompile mail filters (aka,
927 milters). If you recompiled mail filters after the 20070408
928 note, it is not necessary to recompile them again.
931 The new trunk(4) driver has been renamed to lagg(4) as it better
932 reflects its purpose. ifconfig will need to be recompiled.
935 sendmail(8) has been updated to version 8.14.1. Mail filters
936 (aka, milters) compiled against the libmilter included in the
937 base operating system should be recompiled.
940 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
941 In order to use them one must agree to the respective LICENSE in
942 share/doc/legal and define legal.intel_<name>.license_ack=1 via
943 loader.conf(5) or kenv(1). Make sure to deinstall the now
944 deprecated modules from the respective firmware ports.
947 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
948 were removed from FreeBSD's libc. These originally came from INRIA
949 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
950 deprecated in previous releases.
951 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
952 replace it as a more portable (and re-entrant) API.
955 To support interrupt filtering a modification to the newbus API
956 has occurred, ABI was broken and __FreeBSD_version was bumped
957 to 700031. Please make sure that your kernel and modules are in
959 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
962 The IPv6 multicast forwarding code may now be loaded into GENERIC
963 kernels by loading the ip_mroute.ko module. This is built into the
964 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
965 set; see src.conf(5) for more information.
968 The output of netstat -r has changed. Without -n, we now only
969 print a "network name" without the prefix length if the network
970 address and mask exactly match a Class A/B/C network, and an entry
971 exists in the nsswitch "networks" map.
972 With -n, we print the full unabbreviated CIDR network prefix in
973 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
974 This change is in preparation for changes such as equal-cost
975 multipath, and to more generally assist operational deployment
976 of FreeBSD as a modern IPv4 router.
979 PIM has been turned on by default in the IPv4 multicast
980 routing code. The kernel option 'PIM' has now been removed.
981 PIM is now built by default if option 'MROUTING' is specified.
982 It may now be loaded into GENERIC kernels by loading the
986 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
987 has been removed. Its functionality may be achieved by explicitly
988 configuring gif(4) interfaces and using the 'phyint' keyword in
990 XORP does not support source-routed IPv4 multicast tunnels nor the
991 integrated IPIP tunneling, therefore it is not affected by this
992 change. The __FreeBSD_version macro has been bumped to 700030.
995 Support for PCI Message Signalled Interrupts has been
996 re-enabled in the bge driver, only for those chips which are
997 believed to support it properly. If there are any problems,
998 MSI can be disabled completely by setting the
999 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
1003 Support for PCI Message Signalled Interrupts has been
1004 disabled again in the bge driver. Many revisions of the
1005 hardware fail to support it properly. Support can be
1006 re-enabled by removing the #define of BGE_DISABLE_MSI in
1007 "src/sys/dev/bge/if_bge.c".
1010 Support for PCI Message Signalled Interrupts has been added
1011 to the bge driver. If there are any problems, MSI can be
1012 disabled completely by setting the 'hw.pci.enable_msi' and
1013 'hw.pci.enable_msix' tunables to 0 in the loader.
1016 The removal of several facets of the experimental Threading
1017 system from the kernel means that the proc and thread structures
1018 have changed quite a bit. I suggest all kernel modules that might
1019 reference these structures be recompiled.. Especially the
1023 Sound infrastructure has been updated with various fixes and
1024 improvements. Most of the changes are pretty much transparent,
1025 with exceptions of followings:
1026 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
1027 moved to their own dev sysctl nodes, for example:
1028 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
1029 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
1030 own chardev in the form of "dsp%d.<function>%d", where <function>
1031 is p = playback, r = record and v = virtual, respectively. Users
1032 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
1033 This does not affect those who are using "/dev/dsp".
1036 geom(4)'s gmirror(8) class metadata structure has been
1037 rev'd from v3 to v4. If you update across this point and
1038 your metadata is converted for you, you will not be easily
1039 able to downgrade since the /boot/kernel.old/geom_mirror.ko
1040 kernel module will be unable to read the v4 metadata. You
1041 can resolve this by doing from the loader(8) prompt:
1043 set vfs.root.mountfrom="ufs:/dev/XXX"
1045 where XXX is the root slice of one of the disks that composed
1046 the mirror (i.e.: /dev/ad0s1a). You can then rebuild
1047 the array the same way you built it originally.
1050 The following binaries have been disconnected from the build:
1051 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
1052 and mount_std. The functionality of these programs has been
1053 moved into the mount program. For example, to mount a devfs
1054 filesystem, instead of using mount_devfs, use: "mount -t devfs".
1055 This does not affect entries in /etc/fstab, since entries in
1056 /etc/fstab are always processed with "mount -t fstype".
1059 Support for PCI Message Signalled Interrupts on i386 and amd64
1060 has been added to the kernel and various drivers will soon be
1061 updated to use MSI when it is available. If there are any problems,
1062 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
1063 and 'hw.pci.enable_msix' tunables to 0 in the loader.
1066 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
1067 The lockmgr object layout has been changed as a result of having
1068 a lock_object embedded in it. As a consequence all file system
1069 kernel modules must be re-compiled. The mutex profiling man page
1070 has not yet been updated to reflect this change.
1073 KSE in the kernel has now been made optional and turned on by
1074 default. Use 'nooption KSE' in your kernel config to turn it
1075 off. All kernel modules *must* be recompiled after this change.
1076 There-after, modules from a KSE kernel should be compatible with
1077 modules from a NOKSE kernel due to the temporary padding fields
1078 added to 'struct proc'.
1081 mrouted and its utilities have been removed from the base system.
1084 Some ioctl(2) command codes have changed. Full backward ABI
1085 compatibility is provided if the "options COMPAT_FREEBSD6" is
1086 present in the kernel configuration file. Make sure to add
1087 this option to your kernel config file, or recompile X.Org
1088 and the rest of ports; otherwise they may refuse to work.
1091 tcpslice has been removed from the base system.
1094 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
1095 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
1096 systat needs to be rebuilt.
1099 libpcap updated to v0.9.4 and tcpdump to v3.9.4
1102 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
1103 for IPFIREWALL_FORWARD is now as it was before when it was first
1104 committed and for years after. The behaviour is now ON.
1107 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
1108 Now it can decrypt files created from different architectures.
1109 Unfortunately, it is no longer able to decrypt a cipher text
1110 generated with an older version on 64 bit architectures.
1111 If you have such a file, you need old utility to decrypt it.
1114 The interface version of the i4b kernel part has changed. So
1115 after updating the kernel sources and compiling a new kernel,
1116 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
1117 be rebuilt, and vice versa.
1120 The XBOX kernel now defaults to the nfe(4) driver instead of
1121 the nve(4) driver. Please update your configuration
1125 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
1126 PCnet family of NICs has been removed. The new le(4) driver serves
1127 as an equivalent but cross-platform replacement with the pcn(4)
1128 driver still providing performance-optimized support for the subset
1129 of AMD Am79C971 PCnet-FAST and greater chips as before.
1132 The machdep.* sysctls and the adjkerntz utility have been
1133 modified a bit. The new adjkerntz utility uses the new
1134 sysctl names and sysctlbyname() calls, so it may be impossible
1135 to run an old /sbin/adjkerntz utility in single-user mode
1136 with a new kernel. Replace the `adjkerntz -i' step before
1137 `make installworld' with:
1139 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
1141 and proceed as usual with the rest of the installworld-stage
1142 steps. Otherwise, you risk installing binaries with their
1143 timestamp set several hours in the future, especially if
1144 you are running with local time set to GMT+X hours.
1147 The ip6fw utility has been removed. The behavior provided by
1148 ip6fw has been in ipfw2 for a good while and the rc.d scripts
1149 have been updated to deal with it. There are some rules that
1150 might not migrate cleanly. Use rc.firewall6 as a template to
1154 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
1155 attachments have been removed. Make sure to configure scc(4)
1156 on sparc64. Note also that by default puc(4) will use uart(4)
1157 and not sio(4) for serial ports because interrupt handling has
1158 been optimized for multi-port serial cards and only uart(4)
1159 implements the interface to support it.
1162 The scc(4) driver replaces puc(4) for Serial Communications
1163 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
1164 Z8530. On sparc64, it is advised to add scc(4) to the kernel
1165 configuration to make sure that the serial ports remain
1169 Most world/kernel related NO_* build options changed names.
1170 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
1171 after FreeBSD ports) and should be set in /etc/src.conf
1172 (the src.conf(5) manpage is provided). Full backwards
1173 compatibility is maintained for the time being though it's
1174 highly recommended to start moving old options out of the
1175 system-wide /etc/make.conf file into the new /etc/src.conf
1176 while also properly renaming them. More conversions will
1177 likely follow. Posting to current@:
1179 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
1182 The NETSMBCRYPTO kernel option has been retired because its
1183 functionality is always included in NETSMB and smbfs.ko now.
1186 The TDFX_LINUX kernel option was retired and replaced by the
1187 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
1188 kernel module. Loading it alone should suffice to get 3dfx support
1189 for Linux apps because it will pull in 3dfx.ko and linux.ko through
1193 The 'audit' group was added to support the new auditing functionality
1194 in the base system. Be sure to follow the directions for updating,
1195 including the requirement to run mergemaster -p.
1198 The kernel ABI to file system modules was changed on i386.
1199 Please make sure that your kernel and modules are in sync.
1202 This actually occured some time ago, but installing the kernel
1203 now also installs a bunch of symbol files for the kernel modules.
1204 This increases the size of /boot/kernel to about 67Mbytes. You
1205 will need twice this if you will eventually back this up to kernel.old
1206 on your next install.
1207 If you have a shortage of room in your root partition, you should add
1208 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
1209 to your /etc/make.conf.
1212 libc's malloc implementation has been replaced. This change has the
1213 potential to uncover application bugs that previously went unnoticed.
1214 See the malloc(3) manual page for more details.
1217 The generic netgraph(4) cookie has been changed. If you upgrade
1218 kernel passing this point, you also need to upgrade userland
1219 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
1222 si(4)'s device files now contain the unit number.
1223 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
1226 The kernel ABI was mostly destroyed due to a change in the size
1227 of struct lock_object which is nested in other structures such
1228 as mutexes which are nested in all sorts of other structures.
1229 Make sure your kernel and modules are in sync.
1232 The page coloring algorithm in the VM subsystem was converted
1233 from tuning with kernel options to autotuning. Please remove
1234 any PQ_* option except PQ_NOOPT from your kernel config.
1237 The net80211-related tools in the tools/tools/ath directory
1238 have been moved to tools/tools/net80211 and renamed with a
1239 "wlan" prefix. Scripts that use them should be adjusted
1243 Scripts in the local_startup directories (as defined in
1244 /etc/defaults/rc.conf) that have the new rc.d semantics will
1245 now be run as part of the base system rcorder. If there are
1246 errors or problems with one of these local scripts, it could
1247 cause boot problems. If you encounter such problems, boot in
1248 single user mode, remove that script from the */rc.d directory.
1249 Please report the problem to the port's maintainer, and the
1250 freebsd-ports@freebsd.org mailing list.
1253 The nodev mount option was deprecated in RELENG_6 (where it
1254 was a no-op), and is now unsupported. If you have nodev or dev listed
1255 in /etc/fstab, remove it, otherwise it will result in a mount error.
1258 ABI between ipfw(4) and ipfw(8) has been changed. You need
1259 to rebuild ipfw(8) when rebuilding kernel.
1262 rp(4)'s device files now contain the unit number.
1263 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
1266 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
1267 Its /etc/rc.conf.d configuration file has been `ppp' from
1268 the beginning, and hence there is no need to touch it.
1271 Now most modules get their build-time options from the kernel
1272 configuration file. A few modules still have fixed options
1273 due to their non-conformant implementation, but they will be
1274 corrected eventually. You may need to review the options of
1275 the modules in use, explicitly specify the non-default options
1276 in the kernel configuration file, and rebuild the kernel and
1280 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
1281 to turn polling(4) on your interfaces.
1284 The old bridge(4) implementation was retired. The new
1285 if_bridge(4) serves as a full functional replacement.
1288 The ai_addrlen of a struct addrinfo was changed to a socklen_t
1289 to conform to POSIX-2001. This change broke an ABI
1290 compatibility on 64 bit architecture. You have to recompile
1291 userland programs that use getaddrinfo(3) on 64 bit
1295 RELENG_6 branched here.
1298 The pccard_ifconfig rc.conf variable has been removed and a new
1299 variable, ifconfig_DEFAULT has been introduced. Unlike
1300 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
1301 do not have ifconfig_ifn entries rather than just those in
1302 removable_interfaces.
1305 Some previous versions of PAM have permitted the use of
1306 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
1307 to third party PAM modules in /usr/local/lib. A change has been
1308 made to require the use of absolute paths in order to avoid
1309 ambiguity and dependence on library path configuration, which may
1310 affect existing configurations.
1313 Major changes to network interface API. All drivers must be
1314 recompiled. Drivers not in the base system will need to be
1315 updated to the new APIs.
1318 Changes were made to kinfo_proc in sys/user.h. Please recompile
1319 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
1320 will not behave correctly.
1322 The API and ABI for hwpmc(4) have changed with the addition
1323 of sampling support. Please recompile lib/libpmc(3) and
1324 usr.sbin/{pmcstat,pmccontrol}.
1327 The OpenBSD dhclient was imported in place of the ISC dhclient
1328 and the network interface configuration scripts were updated
1329 accordingly. If you use DHCP to configure your interfaces, you
1330 must now run devd. Also, DNS updating was lost so you will need
1331 to find a workaround if you use this feature.
1333 The '_dhcp' user was added to support the OpenBSD dhclient. Be
1334 sure to run mergemaster -p (like you are supposed to do every time
1338 if_bridge was added to the tree. This has changed struct ifnet.
1339 Please recompile userland and all network related modules.
1342 The n_net of a struct netent was changed to an uint32_t, and
1343 1st argument of getnetbyaddr() was changed to an uint32_t, to
1344 conform to POSIX-2001. These changes broke an ABI
1345 compatibility on 64 bit architecture. With these changes,
1346 shlib major of libpcap was bumped. You have to recompile
1347 userland programs that use getnetbyaddr(3), getnetbyname(3),
1348 getnetent(3) and/or libpcap on 64 bit architecture.
1351 Kernel parsing of extra options on '#!' first lines of shell
1352 scripts has changed. Lines with multiple options likely will
1353 fail after this date. For full details, please see
1354 http://people.freebsd.org/~gad/Updating-20050528.txt
1357 The packet filter (pf) code has been updated to OpenBSD 3.7
1358 Please note the changed anchor syntax and the fact that
1359 authpf(8) now needs a mounted fdescfs(5) to function.
1362 The NO_MIXED_MODE kernel option has been removed from the i386
1363 amd64 platforms as its use has been superceded by the new local
1364 APIC timer code. Any kernel config files containing this option
1368 The on-disk format of LC_CTYPE files was changed to be machine
1369 independent. Please make sure NOT to use NO_CLEAN buildworld
1370 when crossing this point. Crossing this point also requires
1371 recompile or reinstall of all locale depended packages.
1374 The ifi_epoch member of struct if_data has been changed to
1375 contain the uptime at which the interface was created or the
1376 statistics zeroed rather then the wall clock time because
1377 wallclock time may go backwards. This should have no impact
1378 unless an snmp implementation is using this value (I know of
1379 none at this point.)
1382 The acpi_perf and acpi_throttle drivers are now part of the
1383 acpi(4) main module. They are no longer built separately.
1386 The layout of struct image_params has changed. You have to
1387 recompile all compatibility modules (linux, svr4, etc) for use
1388 with the new kernel.
1391 The p4tcc driver has been merged into cpufreq(4). This makes
1392 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
1393 compile in "device cpufreq" to restore this functionality.
1396 The responsibility of recomputing the file system summary of
1397 a SoftUpdates-enabled dirty volume has been transferred to the
1398 background fsck. A rebuild of fsck(8) utility is recommended
1399 if you have updated the kernel.
1401 To get the old behavior (recompute file system summary at mount
1402 time), you can set vfs.ffs.compute_summary_at_mount=1 before
1403 mounting the new volume.
1406 The cpufreq import is complete. As part of this, the sysctls for
1407 acpi(4) throttling have been removed. The power_profile script
1408 has been updated, so you can use performance/economy_cpu_freq in
1409 rc.conf(5) to set AC on/offline cpu frequencies.
1412 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
1413 requires recompiling libnetgraph and userland netgraph utilities.
1416 Support for abbreviated forms of a number of ipfw options is
1417 now deprecated. Warnings are printed to stderr indicating the
1418 correct full form when a match occurs. Some abbreviations may
1419 be supported at a later date based on user feedback. To be
1420 considered for support, abbreviations must be in use prior to
1421 this commit and unlikely to be confused with current key words.
1424 By a popular demand, a lot of NOFOO options were renamed
1425 to NO_FOO (see bsd.compat.mk for a full list). The old
1426 spellings are still supported, but will cause annoying
1427 warnings on stderr. Make sure you upgrade properly (see
1428 the COMMON ITEMS: section later in this file).
1431 Auto-loading of ancillary wlan modules such as wlan_wep has
1432 been temporarily disabled; you need to statically configure
1433 the modules you need into your kernel or explicitly load them
1434 prior to use. Specifically, if you intend to use WEP encryption
1435 with an 802.11 device load/configure wlan_wep; if you want to
1436 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
1437 and wlan_xauth as required.
1440 The behaviour of ppp(8) has changed slightly. If lqr is enabled
1441 (``enable lqr''), older versions would revert to LCP ECHO mode on
1442 negotiation failure. Now, ``enable echo'' is required for this
1443 behaviour. The ppp version number has been bumped to 3.4.2 to
1447 The wlan support has been updated to split the crypto support
1448 into separate modules. For static WEP you must configure the
1449 wlan_wep module in your system or build and install the module
1450 in place where it can be loaded (the kernel will auto-load
1451 the module when a wep key is configured).
1454 The ath driver has been updated to split the tx rate control
1455 algorithm into a separate module. You need to include either
1456 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
1459 Support for systems with an 80386 CPU has been removed. Please
1460 use FreeBSD 5.x or earlier on systems with an 80386.
1463 We have had a hack which would mount the root filesystem
1464 R/W if the device were named 'md*'. As part of the vnode
1465 work I'm doing I have had to remove this hack. People
1466 building systems which use preloaded MD root filesystems
1467 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
1468 their /etc/rc scripts.
1471 FreeBSD 5.3 shipped here.
1474 The size of struct tcpcb has changed again due to the removal
1475 of RFC1644 T/TCP. You have to recompile userland programs that
1476 read kmem for tcp sockets directly (netstat, sockstat, etc.)
1479 The size of struct tcpcb has changed. You have to recompile
1480 userland programs that read kmem for tcp sockets directly
1481 (netstat, sockstat, etc.)
1484 RELENG_5 branched here. For older entries, please see updating
1485 in the RELENG_5 branch.
1491 Avoid using make -j when upgrading. From time to time in the
1492 past there have been problems using -j with buildworld and/or
1493 installworld. This is especially true when upgrading between
1494 "distant" versions (eg one that cross a major release boundary
1495 or several minor releases, or when several months have passed
1496 on the -current branch).
1498 Sometimes, obscure build problems are the result of environment
1499 poisoning. This can happen because the make utility reads its
1500 environment when searching for values for global variables.
1501 To run your build attempts in an "environmental clean room",
1502 prefix all make commands with 'env -i '. See the env(1) manual
1503 page for more details.
1505 When upgrading from one major version to another it is generally
1506 best to upgrade to the latest code in the currently installed branch
1507 first, then do an upgrade to the new branch. This is the best-tested
1508 upgrade path, and has the highest probability of being successful.
1509 Please try this approach before reporting problems with a major
1514 If you are updating from a prior version of FreeBSD (even one just
1515 a few days old), you should follow this procedure. It is the most
1516 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
1518 make kernel-toolchain
1519 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
1520 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
1522 To test a kernel once
1523 ---------------------
1524 If you just want to boot a kernel once (because you are not sure
1525 if it works, or if you want to boot a known bad kernel to provide
1526 debugging information) run
1527 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
1528 nextboot -k testkernel
1530 To just build a kernel when you know that it won't mess you up
1531 --------------------------------------------------------------
1532 This assumes you are already running a 5.X system. Replace
1533 ${arch} with the architecture of your machine (e.g. "i386",
1534 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
1536 cd src/sys/${arch}/conf
1537 config KERNEL_NAME_HERE
1538 cd ../compile/KERNEL_NAME_HERE
1543 If this fails, go to the "To build a kernel" section.
1545 To rebuild everything and install it on the current system.
1546 -----------------------------------------------------------
1547 # Note: sometimes if you are running current you gotta do more than
1548 # is listed here if you are upgrading from a really old current.
1550 <make sure you have good level 0 dumps>
1552 make kernel KERNCONF=YOUR_KERNEL_HERE
1554 <reboot in single user> [3]
1562 To cross-install current onto a separate partition
1563 --------------------------------------------------
1564 # In this approach we use a separate partition to hold
1565 # current's root, 'usr', and 'var' directories. A partition
1566 # holding "/", "/usr" and "/var" should be about 2GB in
1569 <make sure you have good level 0 dumps>
1572 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1573 <maybe newfs current's root partition>
1574 <mount current's root partition on directory ${CURRENT_ROOT}>
1575 make installworld DESTDIR=${CURRENT_ROOT}
1576 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1577 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1578 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
1579 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1580 <reboot into current>
1581 <do a "native" rebuild/install as described in the previous section>
1582 <maybe install compatibility libraries from ports/misc/compat*>
1586 To upgrade in-place from 5.x-stable to current
1587 ----------------------------------------------
1588 <make sure you have good level 0 dumps>
1590 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
1592 <reboot in single user> [3]
1599 Make sure that you've read the UPDATING file to understand the
1600 tweaks to various things you need. At this point in the life
1601 cycle of current, things change often and you are on your own
1602 to cope. The defaults can also change, so please read ALL of
1603 the UPDATING entries.
1605 Also, if you are tracking -current, you must be subscribed to
1606 freebsd-current@freebsd.org. Make sure that before you update
1607 your sources that you have read and understood all the recent
1608 messages there. If in doubt, please track -stable which has
1609 much fewer pitfalls.
1611 [1] If you have third party modules, such as vmware, you
1612 should disable them at this point so they don't crash your
1615 [3] From the bootblocks, boot -s, and then do
1620 adjkerntz -i # if CMOS is wall time
1621 Also, when doing a major release upgrade, it is required that
1622 you boot into single user mode to do the installworld.
1624 [4] Note: This step is non-optional. Failure to do this step
1625 can result in a significant reduction in the functionality of the
1626 system. Attempting to do it by hand is not recommended and those
1627 that pursue this avenue should read this file carefully, as well
1628 as the archives of freebsd-current and freebsd-hackers mailing lists
1629 for potential gotchas.
1631 [5] Usually this step is a noop. However, from time to time
1632 you may need to do this if you get unknown user in the following
1633 step. It never hurts to do it all the time. You may need to
1634 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1635 install) after the buildworld before this step if you last updated
1636 from current before 20020224 or from -stable before 20020408.
1638 [8] In order to have a kernel that can run the 4.x binaries
1639 needed to do an installworld, you must include the COMPAT_FREEBSD4
1640 option in your kernel. Failure to do so may leave you with a system
1641 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
1642 is required to run the 5.x binaries on more recent kernels.
1644 Make sure that you merge any new devices from GENERIC since the
1645 last time you updated your kernel config file.
1647 [9] When checking out sources, you must include the -P flag to have
1648 cvs prune empty directories.
1650 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1651 "?=" instead of the "=" assignment operator, so that buildworld can
1652 override the CPUTYPE if it needs to.
1654 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1655 not on the command line, or in /etc/make.conf. buildworld will
1656 warn if it is improperly defined.
1659 This file contains a list, in reverse chronological order, of major
1660 breakages in tracking -current. Not all things will be listed here,
1661 and it only starts on October 16, 2004. Updating files can found in
1662 previous releases if your system is older than this.
1664 Copyright information:
1666 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
1668 Redistribution, publication, translation and use, with or without
1669 modification, in full or in part, in any form or format of this
1670 document are permitted without further permission from the author.
1672 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1673 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1674 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1675 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1676 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1677 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1678 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1679 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1680 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1681 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1682 POSSIBILITY OF SUCH DAMAGE.
1684 If you find this document useful, and you want to, you may buy the
1687 Contact Warner Losh if you have any questions about your use of