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:
12 FreeBSD 8.x has many debugging features turned on, in
13 both the kernel and userland. These features attempt to detect
14 incorrect use of system primitives, and encourage loud failure
15 through extra sanity checking and fail stop semantics. They
16 also substantially impact system performance. If you want to
17 do performance measurement, benchmarking, and optimization,
18 you'll want to turn them off. This includes various WITNESS-
19 related kernel options, INVARIANTS, malloc debugging flags
20 in userland, and various verbose features in the kernel. Many
21 developers choose to disable these features on build machines
22 to maximize performance. (To disable malloc debugging, run
23 ln -s aj /etc/malloc.conf.)
26 802.11s D3.03 support was committed. This is incompatible with
27 the previous code, which was based on D3.0.
30 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
31 mount(8) and -a option for df(1) to see them.
34 Remove the option STOP_NMI. The default action is now to use NMI
35 only for KDB via the newly introduced function stop_cpus_hard()
36 and maintain stop_cpus() to just use a normal IPI_STOP on ia32
43 Bump the shared library version numbers for all libraries that
44 do not use symbol versioning as part of the 8.0-RELEASE cycle.
45 Bump __FreeBSD_version to 800105.
48 Due to changes in the implementation of virtual network stack
49 support, all network-related kernel modules must be recompiled.
50 As this change breaks the ABI, bump __FreeBSD_version to 800104.
53 The TOE interface to the TCP syncache has been modified to remove struct
54 tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. The
55 cxgb driver is the only TOE consumer affected by this change, and needs
56 to be recompiled along with the kernel. As this change breaks the ABI,
57 bump __FreeBSD_version to 800103.
60 Padding has been added to struct tcpcb, sackhint and tcpstat in
61 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
62 maintainig the ABI. However, this change breaks the ABI, so bump
63 __FreeBSD_version to 800102. User space tools that rely on the size of
64 any of these structs (e.g. sockstat) need to be recompiled.
67 The NFS_LEGACYRPC option has been removed along with the old
68 kernel RPC implementation that this option selected. Kernel
69 configurations may need to be adjusted.
72 The network interface device nodes at /dev/net/<interface> have
73 been removed. All ioctl operations can be performed the normal
74 way using routing sockets. The kqueue functionality can
75 generally be replaced with routing sockets.
78 The documentation from the FreeBSD Documentation Project
79 (Handbook, FAQ, etc.) is now installed via packages by
80 sysinstall(8) and under the /usr/local/share/doc/freebsd
81 directory instead of /usr/share/doc.
84 The ABI of various structures related to the SYSV IPC API have
85 been changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43
86 kernel options now all require COMPAT_FREEBSD7.
87 Bump __FreeBSD_version to 800100.
90 Layout of struct vnet has changed as routing related variables
91 were moved to their own Vimage module. Modules need to be
92 recompiled. Bump __FreeBSD_version to 800099.
95 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023
96 and 1024 respectively. As long as no more than 16 groups per
97 process are used, no changes should be visible. When more
98 than 16 groups are used, old binaries may fail if they call
99 getgroups() or getgrouplist() with statically sized storage.
100 Recompiling will work around this, but applications should be
101 modified to use dynamically allocated storage for group arrays
102 as POSIX.1-2008 does not cap an implementation's number of
103 supported groups at NGROUPS_MAX+1 as previous versions did.
105 NFS and portalfs mounts may also be affected as the list of
106 groups is truncated to 16. Users of NFS who use more than 16
107 groups, should take care that negative group permissions are not
108 used on the exported file systems as they will not be reliable
109 unless a GSSAPI based authentication method is used.
112 The compiling option ADAPTIVE_LOCKMGRS has been introduced.
113 This option compiles in the support for adaptive spinning for lockmgrs
114 which want to enable it. The lockinit() function now accepts the
115 flag LK_ADAPTIVE in order to make the lock object subject to
116 adaptive spinning when both held in write and read mode.
119 The layout of the structure returned by IEEE80211_IOC_STA_INFO
120 has changed. User applications that use this ioctl need to be
124 The layout of struct thread has changed. Kernel and modules
128 The layout of structs ifnet, domain, protosw and vnet_net has
129 changed. Kernel modules need to be rebuilt.
130 Bump __FreeBSD_version to 800097.
133 window(1) has been removed from the base system. It can now be
134 installed from ports. The port is called misc/window.
137 The way we are storing and accessing `routing table' entries
138 has changed. Programs reading the FIB, like netstat, need to
142 A new netisr implementation has been added for FreeBSD 8. Network
143 file system modules, such as igmp, ipdivert, and others, should be
145 Bump __FreeBSD_version to 800096.
148 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose
152 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
153 Bump __FreeBSD_version to 800094.
156 Add mnt_xflag field to 'struct mount'. File system modules
158 Bump __FreeBSD_version to 800093.
161 The compiling option ADAPTIVE_SX has been retired while it has been
162 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
163 The KPI for sx_init_flags() changes as accepting flags:
164 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag
165 has been introduced in order to handle the reversed logic.
166 Bump __FreeBSD_version to 800092.
169 Add support for hierarchical jails. Remove global securelevel.
170 Bump __FreeBSD_version to 800091.
173 The layout of struct vnet_net has changed, therefore modules
175 Bump __FreeBSD_version to 800090.
178 The newly imported zic(8) produces a new format in the
179 output. Please run tzsetup(8) to install the newly created
180 data to /etc/localtime.
183 The sysctl tree for the usb stack has renamed from hw.usb2.* to
184 hw.usb.* and is now consistent again with previous releases.
187 802.11 monitor mode support was revised and driver api's
188 were changed. Drivers dependent on net80211 now support
189 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No
190 user-visible data structures were changed but applications
191 that use DLT_IEEE802_11 may require changes.
192 Bump __FreeBSD_version to 800088.
195 The layout of the following structs has changed: sysctl_oid,
196 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
197 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
198 panics may be experienced. World rebuild is required for
199 correctly checking networking state from userland.
200 Bump __FreeBSD_version to 800085.
203 MLDv2 and Source-Specific Multicast (SSM) have been merged
204 to the IPv6 stack. VIMAGE hooks are in but not yet used.
205 The implementation of SSM within FreeBSD's IPv6 stack closely
206 follows the IPv4 implementation.
208 For kernel developers:
210 * The most important changes are that the ip6_output() and
211 ip6_input() paths no longer take the IN6_MULTI_LOCK,
212 and this lock has been downgraded to a non-recursive mutex.
214 * As with the changes to the IPv4 stack to support SSM, filtering
215 of inbound multicast traffic must now be performed by transport
216 protocols within the IPv6 stack. This does not apply to TCP and
217 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
219 * The KPIs used by IPv6 multicast are similar to those used by
220 the IPv4 stack, with the following differences:
221 * im6o_mc_filter() is analogous to imo_multicast_filter().
222 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
223 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
224 * IN6_LOOKUP_MULTI() has been deprecated and removed.
225 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
226 for MLDv1 have an additional 'timer' argument which is used to
227 jitter the initial membership report for the solicited-node
228 multicast membership on-link.
229 * This is not strictly needed for MLDv2, which already jitters
230 its report transmissions. However, the 'timer' argument is
231 preserved in case MLDv1 is active on the interface.
233 * The KAME linked-list based IPv6 membership implementation has
234 been refactored to use a vector similar to that used by the IPv4
236 Code which maintains a list of its own multicast memberships
237 internally, e.g. carp, has been updated to reflect the new
240 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
241 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
242 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
243 implementation constraint which needs to be addressed in HEAD.
245 For application developers:
247 * The changes are broadly similar to those made for the IPv4
250 * The use of IPv4 and IPv6 multicast socket options on the same
251 socket, using mapped addresses, HAS NOT been tested or supported.
253 * There are a number of issues with the implementation of various
254 IPv6 multicast APIs which need to be resolved in the API surface
255 before the implementation is fully compatible with KAME userland
256 use, and these are mostly to do with interface index treatment.
258 * The literature available discusses the use of either the delta / ASM
259 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
260 using setsourcefilter(3)/getsourcefilter(3). For more information
261 please refer to RFC 3768, 'Socket Interface Extensions for
262 Multicast Source Filters'.
264 * Applications which use the published RFC 3678 APIs should be fine.
266 For systems administrators:
268 * The mtest(8) utility has been refactored to support IPv6, in
269 addition to IPv4. Interface addresses are no longer accepted
270 as arguments, their names must be used instead. The utility
271 will map the interface name to its first IPv4 address as
272 returned by getifaddrs(3).
274 * The ifmcstat(8) utility has also been updated to print the MLDv2
275 endpoint state and source filter lists via sysctl(3).
277 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
278 loopback of IPv6 multicast datagrams by default; it defaults to 1
279 to preserve the existing behaviour. Disabling multicast loopback is
280 recommended for optimal system performance.
282 * The IPv6 MROUTING code has been changed to examine this sysctl
283 instead of attempting to perform a group lookup before looping
284 back forwarded datagrams.
286 Bump __FreeBSD_version to 800084.
289 Implement low-level Bluetooth HCI API.
290 Bump __FreeBSD_version to 800083.
293 The layout of struct malloc_type, used by modules to register new
294 memory allocation types, has changed. Most modules will need to
295 be rebuilt or panics may be experienced.
296 Bump __FreeBSD_version to 800081.
299 Anticipate overflowing inp_flags - add inp_flags2.
300 This changes most offsets in inpcb, so checking v4 connection
301 state will require a world rebuild.
302 Bump __FreeBSD_version to 800080.
305 Add an llentry to struct route and struct route_in6. Modules
306 embedding a struct route will need to be recompiled.
307 Bump __FreeBSD_version to 800079.
310 The size of rt_metrics_lite and by extension rtentry has changed.
311 Networking administration apps will need to be recompiled.
312 The route command now supports show as an alias for get, weighting
313 of routes, sticky and nostick flags to alter the behavior of stateful
315 Bump __FreeBSD_version to 800078.
318 Do not use Giant for kbdmux(4) locking. This is wrong and
319 apparently causing more problems than it solves. This will
320 re-open the issue where interrupt handlers may race with
321 kbdmux(4) in polling mode. Typical symptoms include (but
322 not limited to) duplicated and/or missing characters when
323 low level console functions (such as gets) are used while
324 interrupts are enabled (for example geli password prompt,
325 mountroot prompt etc.). Disabling kbdmux(4) may help.
328 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
329 kernel modules referencing any of the above need to be recompiled.
330 Bump __FreeBSD_version to 800075.
333 GEOM_PART has become the default partition slicer for storage devices,
334 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
335 introduces some changes:
337 MSDOS/EBR: the devices created from MSDOS extended partition entries
338 (EBR) can be named differently than with GEOM_MBR and are now symlinks
339 to devices with offset-based names. fstabs may need to be modified.
341 BSD: the "geometry does not match label" warning is harmless in most
342 cases but it points to problems in file system misalignment with
343 disk geometry. The "c" partition is now implicit, covers the whole
344 top-level drive and cannot be (mis)used by users.
346 General: Kernel dumps are now not allowed to be written to devices
347 whose partition types indicate they are meant to be used for file
348 systems (or, in case of MSDOS partitions, as something else than
351 Most of these changes date approximately from 200812.
354 The uscanner(4) driver has been removed from the kernel. This follows
355 Linux removing theirs in 2.6 and making libusb the default interface
359 The multicast forwarding code has been cleaned up. netstat(1)
360 only relies on KVM now for printing bandwidth upcall meters.
361 The IPv4 and IPv6 modules are split into ip_mroute_mod and
362 ip6_mroute_mod respectively. The config(5) options for statically
363 compiling this code remain the same, i.e. 'options MROUTING'.
366 Support for the IFF_NEEDSGIANT network interface flag has been
367 removed, which means that non-MPSAFE network device drivers are no
368 longer supported. In particular, if_ar, if_sr, and network device
369 drivers from the old (legacy) USB stack can no longer be built or
373 POSIX.1 Native Language Support (NLS) has been enabled in libc and
374 a bunch of new language catalog files have also been added.
375 This means that some common libc messages are now localized and
376 they depend on the LC_MESSAGES environmental variable.
379 The k8temp(4) driver has been renamed to amdtemp(4) since
380 support for K10 and K11 CPU families was added.
383 IGMPv3 and Source-Specific Multicast (SSM) have been merged
384 to the IPv4 stack. VIMAGE hooks are in but not yet used.
386 For kernel developers, the most important changes are that the
387 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
388 and this lock has been downgraded to a non-recursive mutex.
390 Transport protocols (UDP, Raw IP) are now responsible for filtering
391 inbound multicast traffic according to group membership and source
392 filters. The imo_multicast_filter() KPI exists for this purpose.
393 Transports which do not use multicast (SCTP, TCP) already reject
394 multicast by default. Forwarding and receive performance may improve
395 as a mutex acquisition is no longer needed in the ip_input()
396 low-level input path. in_addmulti() and in_delmulti() are shimmed
397 to new KPIs which exist to support SSM in-kernel.
399 For application developers, it is recommended that loopback of
400 multicast datagrams be disabled for best performance, as this
401 will still cause the lock to be taken for each looped-back
402 datagram transmission. The net.inet.ip.mcast.loop sysctl may
403 be tuned to 0 to disable loopback by default; it defaults to 1
404 to preserve the existing behaviour.
406 For systems administrators, to obtain best performance with
407 multicast reception and multiple groups, it is always recommended
408 that a card with a suitably precise hash filter is used. Hash
409 collisions will still result in the lock being taken within the
410 transport protocol input path to check group membership.
412 If deploying FreeBSD in an environment with IGMP snooping switches,
413 it is recommended that the net.inet.igmp.sendlocal sysctl remain
414 enabled; this forces 224.0.0.0/24 group membership to be announced
417 The size of 'struct igmpstat' has changed; netstat needs to be
418 recompiled to reflect this.
419 Bump __FreeBSD_version to 800070.
422 libusb20.so.1 is now installed as libusb.so.1 and the ports system
423 updated to use it. This requires a buildworld/installworld in order to
424 update the library and dependencies (usbconfig, etc). Its advisable to
425 rebuild all ports which uses libusb. More specific directions are given
426 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
427 libusb are no longer required and can be removed.
430 A workaround is committed to allow the creation of System V shared
431 memory segment of size > 2 GB on the 64-bit architectures.
432 Due to a limitation of the existing ABI, the shm_segsz member
433 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
434 wrong for large segments. Note that limits must be explicitly
435 raised to allow such segments to be created.
438 The layout of struct ifnet has changed, requiring a rebuild of all
439 network device driver modules.
442 The /dev handling for the new USB stack has changed, a
443 buildworld/installworld is required for libusb20.
446 The new USB2 stack has now been permanently moved in and all kernel and
447 module names reverted to their previous values (eg, usb, ehci, ohci,
448 ums, ...). The old usb stack can be compiled in by prefixing the name
449 with the letter 'o', the old usb modules have been removed.
450 Updating entry 20090216 for xorg and 20090215 for libmap may still
454 The rc.conf(5) option if_up_delay has been renamed to
455 defaultroute_delay to better reflect its purpose. If you have
456 customized this setting in /etc/rc.conf you need to update it to
460 xorg 7.4 wants to configure its input devices via hald which does not
461 yet work with USB2. If the keyboard/mouse does not work in xorg then
463 Option "AllowEmptyInput" "off"
464 to your ServerLayout section. This will cause X to use the configured
465 kbd and mouse sections from your xorg.conf.
468 The GENERIC kernels for all architectures now default to the new USB2
469 stack. No kernel config options or code have been removed so if a
470 problem arises please report it and optionally revert to the old USB
471 stack. If you are loading USB kernel modules or have a custom kernel
472 that includes GENERIC then ensure that usb names are also changed over,
473 eg uftdi -> usb2_serial_ftdi.
475 Older programs linked against the ports libusb 0.1 need to be
476 redirected to the new stack's libusb20. /etc/libmap.conf can
478 # Map old usb library to new one for usb2 stack
479 libusb-0.1.so.8 libusb20.so.1
482 The ichsmb(4) driver has been changed to require SMBus slave
483 addresses be left-justified (xxxxxxx0b) rather than right-justified.
484 All of the other SMBus controller drivers require left-justified
485 slave addresses, so this change makes all the drivers provide the
489 INET6 statistics (struct ip6stat) was updated.
490 netstat(1) needs to be recompiled.
493 NTFS has been removed from GENERIC kernel on amd64 to match
494 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
495 will load ntfs.ko module automatically when NTFS support is
496 actually needed, unless ntfs.ko is not installed or security
497 level prohibits loading kernel modules. If either is the case,
498 "options NTFS" has to be added into kernel config.
501 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
502 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
503 800061. User space tools that rely on the size of struct tcpcb in
504 tcp_var.h (e.g. sockstat) need to be recompiled.
507 ng_tty(4) module updated to match the new TTY subsystem.
508 Due to API change, user-level applications must be updated.
509 New API support added to mpd5 CVS and expected to be present
510 in next mpd5.3 release.
513 With __FreeBSD_version 800060 the makefs tool is part of
514 the base system (it was a port).
517 The afdata and ifnet locks have been changed from mutexes to
518 rwlocks, network modules will need to be re-compiled.
521 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
522 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
523 The new code reduced struct rtentry{} by 16 bytes on 32-bit
524 architecture and 40 bytes on 64-bit architecture. The userland
525 applications "arp" and "ndp" have been updated accordingly.
526 The output from "netstat -r" shows only routing entries and
527 none of the L2 information.
530 __FreeBSD_version 800057 marks the switchover from the
531 binary ath hal to source code. Users must add the line:
533 options AH_SUPPORT_AR5416
535 to their kernel config files when specifying:
539 The ath_hal module no longer exists; the code is now compiled
540 together with the driver in the ath module. It is now
541 possible to tailor chip support (i.e. reduce the set of chips
542 and thereby the code size); consult ath_hal(4) for details.
545 __FreeBSD_version 800054 adds memory barriers to
546 <machine/atomic.h>, new interfaces to ifnet to facilitate
547 multiple hardware transmit queues for cards that support
548 them, and a lock-less ring-buffer implementation to
549 enable drivers to more efficiently manage queueing of
553 A new version of ZFS (version 13) has been merged to -HEAD.
554 This version has zpool attribute "listsnapshots" off by
555 default, which means "zfs list" does not show snapshots,
556 and is the same as Solaris behavior.
559 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
562 The uhci, ohci, ehci and slhci USB Host controller drivers have
563 been put into separate modules. If you load the usb module
564 separately through loader.conf you will need to load the
565 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
566 controller add the following to loader.conf:
572 The ABI used by the PMC toolset has changed. Please keep
573 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
577 The TTY subsystem of the kernel has been replaced by a new
578 implementation, which provides better scalability and an
579 improved driver model. Most common drivers have been migrated to
580 the new TTY subsystem, while others have not. The following
581 drivers have not yet been ported to the new TTY layer:
584 cy, digi, rc, rp, sio
590 ng_h4, ng_tty, ppp, sl, snp
592 Adding these drivers to your kernel configuration file shall
593 cause compilation to fail.
596 ntpd has been upgraded to 4.2.4p5.
599 OpenSSH has been upgraded to 5.1p1.
601 For many years, FreeBSD's version of OpenSSH preferred DSA
602 over RSA for host and user authentication keys. With this
603 upgrade, we've switched to the vendor's default of RSA over
604 DSA. This may cause upgraded clients to warn about unknown
605 host keys even for previously known hosts. Users should
606 follow the usual procedure for verifying host keys before
607 accepting the RSA key.
609 This can be circumvented by setting the "HostKeyAlgorithms"
610 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
613 Please note that the sequence of keys offered for
614 authentication has been changed as well. You may want to
615 specify IdentityFile in a different order to revert this
619 The sio(4) driver has been removed from the i386 and amd64
620 kernel configuration files. This means uart(4) is now the
621 default serial port driver on those platforms as well.
623 To prevent collisions with the sio(4) driver, the uart(4) driver
624 uses different names for its device nodes. This means the
625 onboard serial port will now most likely be called "ttyu0"
626 instead of "ttyd0". You may need to reconfigure applications to
627 use the new device names.
629 When using the serial port as a boot console, be sure to update
630 /boot/device.hints and /etc/ttys before booting the new kernel.
631 If you forget to do so, you can still manually specify the hints
632 at the loader prompt:
634 set hint.uart.0.at="isa"
635 set hint.uart.0.port="0x3F8"
636 set hint.uart.0.flags="0x10"
637 set hint.uart.0.irq="4"
641 The gpt(8) utility has been removed. Use gpart(8) to partition
645 The version that Linuxulator emulates was changed from 2.4.2
646 to 2.6.16. If you experience any problems with Linux binaries
647 please try to set sysctl compat.linux.osrelease to 2.4.2 and
648 if it fixes the problem contact emulation mailing list.
651 ISDN4BSD (I4B) was removed from the src tree. You may need to
652 update a your kernel configuration and remove relevant entries.
655 I have checked in code to support multiple routing tables.
656 See the man pages setfib(1) and setfib(2).
657 This is a hopefully backwards compatible version,
658 but to make use of it you need to compile your kernel
659 with options ROUTETABLES=2 (or more up to 16).
662 The 802.11 wireless support was redone to enable multi-bss
663 operation on devices that are capable. The underlying device
664 is no longer used directly but instead wlanX devices are
665 cloned with ifconfig. This requires changes to rc.conf files.
667 ifconfig_ath0="WPA DHCP"
670 ifconfig_wlan0="WPA DHCP"
671 see rc.conf(5) for more details. In addition, mergemaster of
672 /etc/rc.d is highly recommended. Simultaneous update of userland
673 and kernel wouldn't hurt either.
675 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
676 modules were merged into the base wlan module. All references
677 to these modules (e.g. in kernel config files) must be removed.
680 psm(4) has gained write(2) support in native operation level.
681 Arbitrary commands can be written to /dev/psm%d and status can
682 be read back from it. Therefore, an application is responsible
683 for status validation and error recovery. It is a no-op in
684 other operation levels.
687 Support for KSE threading has been removed from the kernel. To
688 run legacy applications linked against KSE libmap.conf may
689 be used. The following libmap.conf may be used to ensure
690 compatibility with any prior release:
692 libpthread.so.1 libthr.so.1
693 libpthread.so.2 libthr.so.2
694 libkse.so.3 libthr.so.3
697 The layout of struct vmspace has changed. This affects libkvm
698 and any executables that link against libkvm and use the
699 kvm_getprocs() function. In particular, but not exclusively,
700 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
701 The effects are minimal, but it's advisable to upgrade world
705 The latest em driver no longer has support in it for the
706 82575 adapter, this is now moved to the igb driver. The
707 split was done to make new features that are incompatible
708 with older hardware easier to do.
711 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
712 likewise the kernel option is now GEOM_LINUX_LVM.
715 The default NFS mount mode has changed from UDP to TCP for
716 increased reliability. If you rely on (insecurely) NFS
717 mounting across a firewall you may need to update your
721 Belatedly note the addition of m_collapse for compacting
725 The fts(3) structures have been changed to use adequate
726 integer types for their members and so to be able to cope
727 with huge file trees. The old fts(3) ABI is preserved
728 through symbol versioning in libc, so third-party binaries
729 using fts(3) should still work, although they will not take
730 advantage of the extended types. At the same time, some
731 third-party software might fail to build after this change
732 due to unportable assumptions made in its source code about
733 fts(3) structure members. Such software should be fixed
734 by its vendor or, in the worst case, in the ports tree.
735 FreeBSD_version 800015 marks this change for the unlikely
736 case that a portable fix is impossible.
739 To upgrade to -current after this date, you must be running
740 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
741 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
744 The ADAPTIVE_GIANT kernel option has been retired because its
745 functionality is the default now.
748 The AT keyboard emulation of sunkbd(4) has been turned on
749 by default. In order to make the special symbols of the Sun
750 keyboards driven by sunkbd(4) work under X these now have
751 to be configured the same way as Sun USB keyboards driven
752 by ukbd(4) (which also does AT keyboard emulation), f.e.:
754 Option "XkbLayout" "us"
755 Option "XkbRules" "xorg"
756 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
759 It has been decided that it is desirable to provide ABI
760 backwards compatibility to the FreeBSD 4/5/6 versions of the
761 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
762 broken with the introduction of PCI domain support (see the
763 20070930 entry). Unfortunately, this required the ABI of
764 PCIOCGETCONF to be broken again in order to be able to
765 provide backwards compatibility to the old version of that
766 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
767 again. As for prominent ports this affects neither pciutils
768 nor xorg-server this time, the hal port needs to be rebuilt
772 The misnamed kthread_create() and friends have been renamed
773 to kproc_create() etc. Many of the callers already
775 I will return kthread_create() and friends in a while
776 with implementations that actually create threads, not procs.
777 Renaming corresponds with version 800002.
783 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
784 WITHOUT_LIBTHR are set.
787 The PCI code has been made aware of PCI domains. This means that
788 the location strings as used by pciconf(8) etc are now in the
789 following format: pci<domain>:<bus>:<device>[:<function>]. It
790 also means that consumers of <sys/pciio.h> potentially need to
791 be recompiled; this includes the hal and xorg-server ports.
794 The caching daemon (cached) was renamed to nscd. nscd.conf
795 configuration file should be used instead of cached.conf and
796 nscd_enable, nscd_pidfile and nscd_flags options should be used
797 instead of cached_enable, cached_pidfile and cached_flags in
801 The getfacl(1) utility now prints owning user and group name
802 instead of owning uid and gid in the three line comment header.
803 This is the same behavior as getfacl(1) on Solaris and Linux.
806 The new IPsec code is now compiled in using the IPSEC option. The
807 IPSEC option now requires "device crypto" be defined in your kernel
808 configuration. The FAST_IPSEC kernel option is now deprecated.
811 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
812 note the changed syntax - keep state is now on by default. Also
813 note the fact that ftp-proxy(8) has been changed from bottom up and
814 has been moved from libexec to usr/sbin. Changes in the ALTQ
815 handling also affect users of IPFW's ALTQ capabilities.
818 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
819 only IPsec supported by FreeBSD. The new IPsec stack
820 supports both IPv4 and IPv6. The kernel option will change
821 after the code changes have settled in. For now the kernel
822 option IPSEC is deprecated and FAST_IPSEC is the only option, that
823 will change after some settling time.
826 The wicontrol(8) utility has been removed from the base system. wi(4)
827 cards should be configured using ifconfig(8), see the man page for more
831 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
832 instead of the nve(4) driver. Please update your configuration
836 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
837 database if it is missing or older than the aliases file. If
838 desired, set the new rc.conf option sendmail_rebuild_aliases
839 to "YES" to restore that functionality.
842 The IPv4 multicast socket code has been considerably modified, and
843 moved to the file sys/netinet/in_mcast.c. Initial support for the
844 RFC 3678 Source-Specific Multicast Socket API has been added to
845 the IPv4 network stack.
847 Strict multicast and broadcast reception is now the default for
848 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
849 has now been removed.
851 The RFC 1724 hack for interface selection has been removed; the use
852 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
853 been added to replace it. Consumers such as routed will soon be
854 updated to reflect this.
856 These changes affect users who are running routed(8) or rdisc(8)
857 from the FreeBSD base system on point-to-point or unnumbered
861 The net80211 layer has changed significantly and all wireless
862 drivers that depend on it need to be recompiled. Further these
863 changes require that any program that interacts with the wireless
864 support in the kernel be recompiled; this includes: ifconfig,
865 wpa_supplicant, hostapd, and wlanstats. Users must also, for
866 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
867 if they use modules for wireless support. These modules implement
868 scanning support for station and ap modes, respectively. Failure
869 to load the appropriate module before marking a wireless interface
870 up will result in a message to the console and the device not
874 The pam_nologin(8) module ceases to provide an authentication
875 function and starts providing an account management function.
876 Consequent changes to /etc/pam.d should be brought in using
877 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
878 need manual editing as follows. Locate this line (or similar):
880 auth required pam_nologin.so no_warn
882 and change it according to this example:
884 account required pam_nologin.so no_warn
886 That is, the first word needs to be changed from "auth" to
887 "account". The new line can be moved to the account section
888 within the file for clarity. Not updating pam.conf(5) files
889 will result in nologin(5) ignored by the respective services.
892 The ether_ioctl() function has been synchronized with ioctl(2)
893 and ifnet.if_ioctl. Due to that, the size of one of its arguments
894 has changed on 64-bit architectures. All kernel modules using
895 ether_ioctl() need to be rebuilt on such architectures.
898 Improved INCLUDE_CONFIG_FILE support has been introduced to the
899 config(8) utility. In order to take advantage of this new
900 functionality, you are expected to recompile and install
901 src/usr.sbin/config. If you don't rebuild config(8), and your
902 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
903 build will be broken because of a missing "kernconfstring"
907 Symbol versioning is enabled by default. To disable it, use
908 option WITHOUT_SYMVER. It is not advisable to attempt to
909 disable symbol versioning once it is enabled; your installworld
910 will break because a symbol version-less libc will get installed
911 before the install tools. As a result, the old install tools,
912 which previously had symbol dependencies to FBSD_1.0, will fail
913 because the freshly installed libc will not have them.
915 The default threading library (providing "libpthread") has been
916 changed to libthr. If you wish to have libkse as your default,
917 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
920 The ABI breakage in sendmail(8)'s libmilter has been repaired
921 so it is no longer necessary to recompile mail filters (aka,
922 milters). If you recompiled mail filters after the 20070408
923 note, it is not necessary to recompile them again.
926 The new trunk(4) driver has been renamed to lagg(4) as it better
927 reflects its purpose. ifconfig will need to be recompiled.
930 sendmail(8) has been updated to version 8.14.1. Mail filters
931 (aka, milters) compiled against the libmilter included in the
932 base operating system should be recompiled.
935 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
936 In order to use them one must agree to the respective LICENSE in
937 share/doc/legal and define legal.intel_<name>.license_ack=1 via
938 loader.conf(5) or kenv(1). Make sure to deinstall the now
939 deprecated modules from the respective firmware ports.
942 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
943 were removed from FreeBSD's libc. These originally came from INRIA
944 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
945 deprecated in previous releases.
946 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
947 replace it as a more portable (and re-entrant) API.
950 To support interrupt filtering a modification to the newbus API
951 has occurred, ABI was broken and __FreeBSD_version was bumped
952 to 700031. Please make sure that your kernel and modules are in
954 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
957 The IPv6 multicast forwarding code may now be loaded into GENERIC
958 kernels by loading the ip_mroute.ko module. This is built into the
959 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
960 set; see src.conf(5) for more information.
963 The output of netstat -r has changed. Without -n, we now only
964 print a "network name" without the prefix length if the network
965 address and mask exactly match a Class A/B/C network, and an entry
966 exists in the nsswitch "networks" map.
967 With -n, we print the full unabbreviated CIDR network prefix in
968 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
969 This change is in preparation for changes such as equal-cost
970 multipath, and to more generally assist operational deployment
971 of FreeBSD as a modern IPv4 router.
974 PIM has been turned on by default in the IPv4 multicast
975 routing code. The kernel option 'PIM' has now been removed.
976 PIM is now built by default if option 'MROUTING' is specified.
977 It may now be loaded into GENERIC kernels by loading the
981 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
982 has been removed. Its functionality may be achieved by explicitly
983 configuring gif(4) interfaces and using the 'phyint' keyword in
985 XORP does not support source-routed IPv4 multicast tunnels nor the
986 integrated IPIP tunneling, therefore it is not affected by this
987 change. The __FreeBSD_version macro has been bumped to 700030.
990 Support for PCI Message Signalled Interrupts has been
991 re-enabled in the bge driver, only for those chips which are
992 believed to support it properly. If there are any problems,
993 MSI can be disabled completely by setting the
994 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
998 Support for PCI Message Signalled Interrupts has been
999 disabled again in the bge driver. Many revisions of the
1000 hardware fail to support it properly. Support can be
1001 re-enabled by removing the #define of BGE_DISABLE_MSI in
1002 "src/sys/dev/bge/if_bge.c".
1005 Support for PCI Message Signalled Interrupts has been added
1006 to the bge driver. If there are any problems, MSI can be
1007 disabled completely by setting the 'hw.pci.enable_msi' and
1008 'hw.pci.enable_msix' tunables to 0 in the loader.
1011 The removal of several facets of the experimental Threading
1012 system from the kernel means that the proc and thread structures
1013 have changed quite a bit. I suggest all kernel modules that might
1014 reference these structures be recompiled.. Especially the
1018 Sound infrastructure has been updated with various fixes and
1019 improvements. Most of the changes are pretty much transparent,
1020 with exceptions of followings:
1021 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
1022 moved to their own dev sysctl nodes, for example:
1023 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
1024 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
1025 own chardev in the form of "dsp%d.<function>%d", where <function>
1026 is p = playback, r = record and v = virtual, respectively. Users
1027 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
1028 This does not affect those who are using "/dev/dsp".
1031 geom(4)'s gmirror(8) class metadata structure has been
1032 rev'd from v3 to v4. If you update across this point and
1033 your metadata is converted for you, you will not be easily
1034 able to downgrade since the /boot/kernel.old/geom_mirror.ko
1035 kernel module will be unable to read the v4 metadata. You
1036 can resolve this by doing from the loader(8) prompt:
1038 set vfs.root.mountfrom="ufs:/dev/XXX"
1040 where XXX is the root slice of one of the disks that composed
1041 the mirror (i.e.: /dev/ad0s1a). You can then rebuild
1042 the array the same way you built it originally.
1045 The following binaries have been disconnected from the build:
1046 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
1047 and mount_std. The functionality of these programs has been
1048 moved into the mount program. For example, to mount a devfs
1049 filesystem, instead of using mount_devfs, use: "mount -t devfs".
1050 This does not affect entries in /etc/fstab, since entries in
1051 /etc/fstab are always processed with "mount -t fstype".
1054 Support for PCI Message Signalled Interrupts on i386 and amd64
1055 has been added to the kernel and various drivers will soon be
1056 updated to use MSI when it is available. If there are any problems,
1057 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
1058 and 'hw.pci.enable_msix' tunables to 0 in the loader.
1061 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
1062 The lockmgr object layout has been changed as a result of having
1063 a lock_object embedded in it. As a consequence all file system
1064 kernel modules must be re-compiled. The mutex profiling man page
1065 has not yet been updated to reflect this change.
1068 KSE in the kernel has now been made optional and turned on by
1069 default. Use 'nooption KSE' in your kernel config to turn it
1070 off. All kernel modules *must* be recompiled after this change.
1071 There-after, modules from a KSE kernel should be compatible with
1072 modules from a NOKSE kernel due to the temporary padding fields
1073 added to 'struct proc'.
1076 mrouted and its utilities have been removed from the base system.
1079 Some ioctl(2) command codes have changed. Full backward ABI
1080 compatibility is provided if the "options COMPAT_FREEBSD6" is
1081 present in the kernel configuration file. Make sure to add
1082 this option to your kernel config file, or recompile X.Org
1083 and the rest of ports; otherwise they may refuse to work.
1086 tcpslice has been removed from the base system.
1089 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
1090 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
1091 systat needs to be rebuilt.
1094 libpcap updated to v0.9.4 and tcpdump to v3.9.4
1097 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
1098 for IPFIREWALL_FORWARD is now as it was before when it was first
1099 committed and for years after. The behaviour is now ON.
1102 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
1103 Now it can decrypt files created from different architectures.
1104 Unfortunately, it is no longer able to decrypt a cipher text
1105 generated with an older version on 64 bit architectures.
1106 If you have such a file, you need old utility to decrypt it.
1109 The interface version of the i4b kernel part has changed. So
1110 after updating the kernel sources and compiling a new kernel,
1111 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
1112 be rebuilt, and vice versa.
1115 The XBOX kernel now defaults to the nfe(4) driver instead of
1116 the nve(4) driver. Please update your configuration
1120 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
1121 PCnet family of NICs has been removed. The new le(4) driver serves
1122 as an equivalent but cross-platform replacement with the pcn(4)
1123 driver still providing performance-optimized support for the subset
1124 of AMD Am79C971 PCnet-FAST and greater chips as before.
1127 The machdep.* sysctls and the adjkerntz utility have been
1128 modified a bit. The new adjkerntz utility uses the new
1129 sysctl names and sysctlbyname() calls, so it may be impossible
1130 to run an old /sbin/adjkerntz utility in single-user mode
1131 with a new kernel. Replace the `adjkerntz -i' step before
1132 `make installworld' with:
1134 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
1136 and proceed as usual with the rest of the installworld-stage
1137 steps. Otherwise, you risk installing binaries with their
1138 timestamp set several hours in the future, especially if
1139 you are running with local time set to GMT+X hours.
1142 The ip6fw utility has been removed. The behavior provided by
1143 ip6fw has been in ipfw2 for a good while and the rc.d scripts
1144 have been updated to deal with it. There are some rules that
1145 might not migrate cleanly. Use rc.firewall6 as a template to
1149 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
1150 attachments have been removed. Make sure to configure scc(4)
1151 on sparc64. Note also that by default puc(4) will use uart(4)
1152 and not sio(4) for serial ports because interrupt handling has
1153 been optimized for multi-port serial cards and only uart(4)
1154 implements the interface to support it.
1157 The scc(4) driver replaces puc(4) for Serial Communications
1158 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
1159 Z8530. On sparc64, it is advised to add scc(4) to the kernel
1160 configuration to make sure that the serial ports remain
1164 Most world/kernel related NO_* build options changed names.
1165 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
1166 after FreeBSD ports) and should be set in /etc/src.conf
1167 (the src.conf(5) manpage is provided). Full backwards
1168 compatibility is maintained for the time being though it's
1169 highly recommended to start moving old options out of the
1170 system-wide /etc/make.conf file into the new /etc/src.conf
1171 while also properly renaming them. More conversions will
1172 likely follow. Posting to current@:
1174 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
1177 The NETSMBCRYPTO kernel option has been retired because its
1178 functionality is always included in NETSMB and smbfs.ko now.
1181 The TDFX_LINUX kernel option was retired and replaced by the
1182 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
1183 kernel module. Loading it alone should suffice to get 3dfx support
1184 for Linux apps because it will pull in 3dfx.ko and linux.ko through
1188 The 'audit' group was added to support the new auditing functionality
1189 in the base system. Be sure to follow the directions for updating,
1190 including the requirement to run mergemaster -p.
1193 The kernel ABI to file system modules was changed on i386.
1194 Please make sure that your kernel and modules are in sync.
1197 This actually occured some time ago, but installing the kernel
1198 now also installs a bunch of symbol files for the kernel modules.
1199 This increases the size of /boot/kernel to about 67Mbytes. You
1200 will need twice this if you will eventually back this up to kernel.old
1201 on your next install.
1202 If you have a shortage of room in your root partition, you should add
1203 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
1204 to your /etc/make.conf.
1207 libc's malloc implementation has been replaced. This change has the
1208 potential to uncover application bugs that previously went unnoticed.
1209 See the malloc(3) manual page for more details.
1212 The generic netgraph(4) cookie has been changed. If you upgrade
1213 kernel passing this point, you also need to upgrade userland
1214 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
1217 si(4)'s device files now contain the unit number.
1218 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
1221 The kernel ABI was mostly destroyed due to a change in the size
1222 of struct lock_object which is nested in other structures such
1223 as mutexes which are nested in all sorts of other structures.
1224 Make sure your kernel and modules are in sync.
1227 The page coloring algorithm in the VM subsystem was converted
1228 from tuning with kernel options to autotuning. Please remove
1229 any PQ_* option except PQ_NOOPT from your kernel config.
1232 The net80211-related tools in the tools/tools/ath directory
1233 have been moved to tools/tools/net80211 and renamed with a
1234 "wlan" prefix. Scripts that use them should be adjusted
1238 Scripts in the local_startup directories (as defined in
1239 /etc/defaults/rc.conf) that have the new rc.d semantics will
1240 now be run as part of the base system rcorder. If there are
1241 errors or problems with one of these local scripts, it could
1242 cause boot problems. If you encounter such problems, boot in
1243 single user mode, remove that script from the */rc.d directory.
1244 Please report the problem to the port's maintainer, and the
1245 freebsd-ports@freebsd.org mailing list.
1248 The nodev mount option was deprecated in RELENG_6 (where it
1249 was a no-op), and is now unsupported. If you have nodev or dev listed
1250 in /etc/fstab, remove it, otherwise it will result in a mount error.
1253 ABI between ipfw(4) and ipfw(8) has been changed. You need
1254 to rebuild ipfw(8) when rebuilding kernel.
1257 rp(4)'s device files now contain the unit number.
1258 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
1261 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
1262 Its /etc/rc.conf.d configuration file has been `ppp' from
1263 the beginning, and hence there is no need to touch it.
1266 Now most modules get their build-time options from the kernel
1267 configuration file. A few modules still have fixed options
1268 due to their non-conformant implementation, but they will be
1269 corrected eventually. You may need to review the options of
1270 the modules in use, explicitly specify the non-default options
1271 in the kernel configuration file, and rebuild the kernel and
1275 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
1276 to turn polling(4) on your interfaces.
1279 The old bridge(4) implementation was retired. The new
1280 if_bridge(4) serves as a full functional replacement.
1283 The ai_addrlen of a struct addrinfo was changed to a socklen_t
1284 to conform to POSIX-2001. This change broke an ABI
1285 compatibility on 64 bit architecture. You have to recompile
1286 userland programs that use getaddrinfo(3) on 64 bit
1290 RELENG_6 branched here.
1293 The pccard_ifconfig rc.conf variable has been removed and a new
1294 variable, ifconfig_DEFAULT has been introduced. Unlike
1295 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
1296 do not have ifconfig_ifn entries rather than just those in
1297 removable_interfaces.
1300 Some previous versions of PAM have permitted the use of
1301 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
1302 to third party PAM modules in /usr/local/lib. A change has been
1303 made to require the use of absolute paths in order to avoid
1304 ambiguity and dependence on library path configuration, which may
1305 affect existing configurations.
1308 Major changes to network interface API. All drivers must be
1309 recompiled. Drivers not in the base system will need to be
1310 updated to the new APIs.
1313 Changes were made to kinfo_proc in sys/user.h. Please recompile
1314 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
1315 will not behave correctly.
1317 The API and ABI for hwpmc(4) have changed with the addition
1318 of sampling support. Please recompile lib/libpmc(3) and
1319 usr.sbin/{pmcstat,pmccontrol}.
1322 The OpenBSD dhclient was imported in place of the ISC dhclient
1323 and the network interface configuration scripts were updated
1324 accordingly. If you use DHCP to configure your interfaces, you
1325 must now run devd. Also, DNS updating was lost so you will need
1326 to find a workaround if you use this feature.
1328 The '_dhcp' user was added to support the OpenBSD dhclient. Be
1329 sure to run mergemaster -p (like you are supposed to do every time
1333 if_bridge was added to the tree. This has changed struct ifnet.
1334 Please recompile userland and all network related modules.
1337 The n_net of a struct netent was changed to an uint32_t, and
1338 1st argument of getnetbyaddr() was changed to an uint32_t, to
1339 conform to POSIX-2001. These changes broke an ABI
1340 compatibility on 64 bit architecture. With these changes,
1341 shlib major of libpcap was bumped. You have to recompile
1342 userland programs that use getnetbyaddr(3), getnetbyname(3),
1343 getnetent(3) and/or libpcap on 64 bit architecture.
1346 Kernel parsing of extra options on '#!' first lines of shell
1347 scripts has changed. Lines with multiple options likely will
1348 fail after this date. For full details, please see
1349 http://people.freebsd.org/~gad/Updating-20050528.txt
1352 The packet filter (pf) code has been updated to OpenBSD 3.7
1353 Please note the changed anchor syntax and the fact that
1354 authpf(8) now needs a mounted fdescfs(5) to function.
1357 The NO_MIXED_MODE kernel option has been removed from the i386
1358 amd64 platforms as its use has been superceded by the new local
1359 APIC timer code. Any kernel config files containing this option
1363 The on-disk format of LC_CTYPE files was changed to be machine
1364 independent. Please make sure NOT to use NO_CLEAN buildworld
1365 when crossing this point. Crossing this point also requires
1366 recompile or reinstall of all locale depended packages.
1369 The ifi_epoch member of struct if_data has been changed to
1370 contain the uptime at which the interface was created or the
1371 statistics zeroed rather then the wall clock time because
1372 wallclock time may go backwards. This should have no impact
1373 unless an snmp implementation is using this value (I know of
1374 none at this point.)
1377 The acpi_perf and acpi_throttle drivers are now part of the
1378 acpi(4) main module. They are no longer built separately.
1381 The layout of struct image_params has changed. You have to
1382 recompile all compatibility modules (linux, svr4, etc) for use
1383 with the new kernel.
1386 The p4tcc driver has been merged into cpufreq(4). This makes
1387 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
1388 compile in "device cpufreq" to restore this functionality.
1391 The responsibility of recomputing the file system summary of
1392 a SoftUpdates-enabled dirty volume has been transferred to the
1393 background fsck. A rebuild of fsck(8) utility is recommended
1394 if you have updated the kernel.
1396 To get the old behavior (recompute file system summary at mount
1397 time), you can set vfs.ffs.compute_summary_at_mount=1 before
1398 mounting the new volume.
1401 The cpufreq import is complete. As part of this, the sysctls for
1402 acpi(4) throttling have been removed. The power_profile script
1403 has been updated, so you can use performance/economy_cpu_freq in
1404 rc.conf(5) to set AC on/offline cpu frequencies.
1407 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
1408 requires recompiling libnetgraph and userland netgraph utilities.
1411 Support for abbreviated forms of a number of ipfw options is
1412 now deprecated. Warnings are printed to stderr indicating the
1413 correct full form when a match occurs. Some abbreviations may
1414 be supported at a later date based on user feedback. To be
1415 considered for support, abbreviations must be in use prior to
1416 this commit and unlikely to be confused with current key words.
1419 By a popular demand, a lot of NOFOO options were renamed
1420 to NO_FOO (see bsd.compat.mk for a full list). The old
1421 spellings are still supported, but will cause annoying
1422 warnings on stderr. Make sure you upgrade properly (see
1423 the COMMON ITEMS: section later in this file).
1426 Auto-loading of ancillary wlan modules such as wlan_wep has
1427 been temporarily disabled; you need to statically configure
1428 the modules you need into your kernel or explicitly load them
1429 prior to use. Specifically, if you intend to use WEP encryption
1430 with an 802.11 device load/configure wlan_wep; if you want to
1431 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
1432 and wlan_xauth as required.
1435 The behaviour of ppp(8) has changed slightly. If lqr is enabled
1436 (``enable lqr''), older versions would revert to LCP ECHO mode on
1437 negotiation failure. Now, ``enable echo'' is required for this
1438 behaviour. The ppp version number has been bumped to 3.4.2 to
1442 The wlan support has been updated to split the crypto support
1443 into separate modules. For static WEP you must configure the
1444 wlan_wep module in your system or build and install the module
1445 in place where it can be loaded (the kernel will auto-load
1446 the module when a wep key is configured).
1449 The ath driver has been updated to split the tx rate control
1450 algorithm into a separate module. You need to include either
1451 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
1454 Support for systems with an 80386 CPU has been removed. Please
1455 use FreeBSD 5.x or earlier on systems with an 80386.
1458 We have had a hack which would mount the root filesystem
1459 R/W if the device were named 'md*'. As part of the vnode
1460 work I'm doing I have had to remove this hack. People
1461 building systems which use preloaded MD root filesystems
1462 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
1463 their /etc/rc scripts.
1466 FreeBSD 5.3 shipped here.
1469 The size of struct tcpcb has changed again due to the removal
1470 of RFC1644 T/TCP. You have to recompile userland programs that
1471 read kmem for tcp sockets directly (netstat, sockstat, etc.)
1474 The size of struct tcpcb has changed. You have to recompile
1475 userland programs that read kmem for tcp sockets directly
1476 (netstat, sockstat, etc.)
1479 RELENG_5 branched here. For older entries, please see updating
1480 in the RELENG_5 branch.
1486 Avoid using make -j when upgrading. From time to time in the
1487 past there have been problems using -j with buildworld and/or
1488 installworld. This is especially true when upgrading between
1489 "distant" versions (eg one that cross a major release boundary
1490 or several minor releases, or when several months have passed
1491 on the -current branch).
1493 Sometimes, obscure build problems are the result of environment
1494 poisoning. This can happen because the make utility reads its
1495 environment when searching for values for global variables.
1496 To run your build attempts in an "environmental clean room",
1497 prefix all make commands with 'env -i '. See the env(1) manual
1498 page for more details.
1500 When upgrading from one major version to another it is generally
1501 best to upgrade to the latest code in the currently installed branch
1502 first, then do an upgrade to the new branch. This is the best-tested
1503 upgrade path, and has the highest probability of being successful.
1504 Please try this approach before reporting problems with a major
1509 If you are updating from a prior version of FreeBSD (even one just
1510 a few days old), you should follow this procedure. It is the most
1511 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
1513 make kernel-toolchain
1514 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
1515 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
1517 To test a kernel once
1518 ---------------------
1519 If you just want to boot a kernel once (because you are not sure
1520 if it works, or if you want to boot a known bad kernel to provide
1521 debugging information) run
1522 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
1523 nextboot -k testkernel
1525 To just build a kernel when you know that it won't mess you up
1526 --------------------------------------------------------------
1527 This assumes you are already running a 5.X system. Replace
1528 ${arch} with the architecture of your machine (e.g. "i386",
1529 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
1531 cd src/sys/${arch}/conf
1532 config KERNEL_NAME_HERE
1533 cd ../compile/KERNEL_NAME_HERE
1538 If this fails, go to the "To build a kernel" section.
1540 To rebuild everything and install it on the current system.
1541 -----------------------------------------------------------
1542 # Note: sometimes if you are running current you gotta do more than
1543 # is listed here if you are upgrading from a really old current.
1545 <make sure you have good level 0 dumps>
1547 make kernel KERNCONF=YOUR_KERNEL_HERE
1549 <reboot in single user> [3]
1557 To cross-install current onto a separate partition
1558 --------------------------------------------------
1559 # In this approach we use a separate partition to hold
1560 # current's root, 'usr', and 'var' directories. A partition
1561 # holding "/", "/usr" and "/var" should be about 2GB in
1564 <make sure you have good level 0 dumps>
1567 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1568 <maybe newfs current's root partition>
1569 <mount current's root partition on directory ${CURRENT_ROOT}>
1570 make installworld DESTDIR=${CURRENT_ROOT}
1571 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1572 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1573 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
1574 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1575 <reboot into current>
1576 <do a "native" rebuild/install as described in the previous section>
1577 <maybe install compatibility libraries from ports/misc/compat*>
1581 To upgrade in-place from 5.x-stable to current
1582 ----------------------------------------------
1583 <make sure you have good level 0 dumps>
1585 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
1587 <reboot in single user> [3]
1594 Make sure that you've read the UPDATING file to understand the
1595 tweaks to various things you need. At this point in the life
1596 cycle of current, things change often and you are on your own
1597 to cope. The defaults can also change, so please read ALL of
1598 the UPDATING entries.
1600 Also, if you are tracking -current, you must be subscribed to
1601 freebsd-current@freebsd.org. Make sure that before you update
1602 your sources that you have read and understood all the recent
1603 messages there. If in doubt, please track -stable which has
1604 much fewer pitfalls.
1606 [1] If you have third party modules, such as vmware, you
1607 should disable them at this point so they don't crash your
1610 [3] From the bootblocks, boot -s, and then do
1615 adjkerntz -i # if CMOS is wall time
1616 Also, when doing a major release upgrade, it is required that
1617 you boot into single user mode to do the installworld.
1619 [4] Note: This step is non-optional. Failure to do this step
1620 can result in a significant reduction in the functionality of the
1621 system. Attempting to do it by hand is not recommended and those
1622 that pursue this avenue should read this file carefully, as well
1623 as the archives of freebsd-current and freebsd-hackers mailing lists
1624 for potential gotchas.
1626 [5] Usually this step is a noop. However, from time to time
1627 you may need to do this if you get unknown user in the following
1628 step. It never hurts to do it all the time. You may need to
1629 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1630 install) after the buildworld before this step if you last updated
1631 from current before 20020224 or from -stable before 20020408.
1633 [8] In order to have a kernel that can run the 4.x binaries
1634 needed to do an installworld, you must include the COMPAT_FREEBSD4
1635 option in your kernel. Failure to do so may leave you with a system
1636 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
1637 is required to run the 5.x binaries on more recent kernels.
1639 Make sure that you merge any new devices from GENERIC since the
1640 last time you updated your kernel config file.
1642 [9] When checking out sources, you must include the -P flag to have
1643 cvs prune empty directories.
1645 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1646 "?=" instead of the "=" assignment operator, so that buildworld can
1647 override the CPUTYPE if it needs to.
1649 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1650 not on the command line, or in /etc/make.conf. buildworld will
1651 warn if it is improperly defined.
1654 This file contains a list, in reverse chronological order, of major
1655 breakages in tracking -current. Not all things will be listed here,
1656 and it only starts on October 16, 2004. Updating files can found in
1657 previous releases if your system is older than this.
1659 Copyright information:
1661 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
1663 Redistribution, publication, translation and use, with or without
1664 modification, in full or in part, in any form or format of this
1665 document are permitted without further permission from the author.
1667 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1668 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1669 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1670 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1671 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1672 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1673 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1674 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1675 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1676 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1677 POSSIBILITY OF SUCH DAMAGE.
1679 If you find this document useful, and you want to, you may buy the
1682 Contact Warner Losh if you have any questions about your use of