1510 lines
61 KiB
Plaintext
1510 lines
61 KiB
Plaintext
Updating Information for FreeBSD current users
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This file is maintained and copyrighted by M. Warner Losh <imp@freebsd.org>.
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See end of file for further details. For commonly done items, please see the
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COMMON ITEMS: section later in the file. These instructions assume that you
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basically know what you are doing. If not, then please consult the FreeBSD
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handbook.
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Items affecting the ports and packages system can be found in
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/usr/ports/UPDATING. Please read that file before running portupgrade.
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NOTE TO PEOPLE WHO THINK THAT FreeBSD 10.x IS SLOW:
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FreeBSD 10.x has many debugging features turned on, in both the kernel
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and userland. These features attempt to detect incorrect use of
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system primitives, and encourage loud failure through extra sanity
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checking and fail stop semantics. They also substantially impact
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system performance. If you want to do performance measurement,
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benchmarking, and optimization, you'll want to turn them off. This
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includes various WITNESS- related kernel options, INVARIANTS, malloc
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debugging flags in userland, and various verbose features in the
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kernel. Many developers choose to disable these features on build
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machines to maximize performance. (To disable malloc debugging, run
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ln -s aj /etc/malloc.conf.)
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20110923:
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The stable/9 branch created in subversion. This corresponds to the
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RELENG_9 branch in CVS.
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20110913:
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This commit modifies vfs_register() so that it uses a hash
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calculation to set vfc_typenum, which is enabled by default.
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The first time a system is booted after this change, the
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vfc_typenum values will change for all file systems. The
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main effect of this is a change to the NFS server file handles
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for file systems that use vfc_typenum in their fsid, such as ZFS.
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It will, however, prevent vfc_typenum from changing when file
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systems are loaded in a different order for subsequent reboots.
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To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf
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until you are ready to remount all NFS clients after a reboot.
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20110828:
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Bump the shared library version numbers for libraries that
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do not use symbol versioning, have changed the ABI compared
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to stable/8 and which shared library version was not bumped.
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Done as part of 9.0-RELEASE cycle.
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20110815:
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During the merge of Capsicum features, the fget(9) KPI was modified.
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This may require the rebuilding of out-of-tree device drivers --
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issues have been reported specifically with the nVidia device driver.
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__FreeBSD_version is bumped to 900041.
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Also, there is a period between 20110811 and 20110814 where the
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special devices /dev/{stdin,stdout,stderr} did not work correctly.
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Building world from a kernel during that window may not work.
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20110628:
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The packet filter (pf) code has been updated to OpenBSD 4.5.
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You need to update userland tools to be in sync with kernel.
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This update breaks backward compatibility with earlier pfsync(4)
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versions. Care must be taken when updating redundant firewall setups.
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20110608:
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The following sysctls and tunables are retired on x86 platforms:
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machdep.hlt_cpus
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machdep.hlt_logical_cpus
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The following sysctl is retired:
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machdep.hyperthreading_allowed
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The sysctls were supposed to provide a way to dynamically offline and
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online selected CPUs on x86 platforms, but the implementation has not
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been reliable especially with SCHED_ULE scheduler.
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machdep.hyperthreading_allowed tunable is still available to ignore
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hyperthreading CPUs at OS level.
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Individual CPUs can be disabled using hint.lapic.X.disabled tunable,
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where X is an APIC ID of a CPU. Be advised, though, that disabling
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CPUs in non-uniform fashion will result in non-uniform topology and
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may lead to sub-optimal system performance with SCHED_ULE, which is
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a default scheduler.
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20110607:
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cpumask_t type is retired and cpuset_t is used in order to describe
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a mask of CPUs.
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20110531:
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Changes to ifconfig(8) for dynamic address family detection mandate
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that you are running a kernel of 20110525 or later. Make sure to
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follow the update procedure to boot a new kernel before installing
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world.
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20110513:
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Support for sun4v architecture is officially dropped
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20110503:
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Several KPI breaking changes have been committed to the mii(4) layer,
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the PHY drivers and consequently some Ethernet drivers using mii(4).
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This means that miibus.ko and the modules of the affected Ethernet
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drivers need to be recompiled.
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Note to kernel developers: Given that the OUI bit reversion problem
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was fixed as part of these changes all mii(4) commits related to OUIs,
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i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific
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handling, no longer can be merged verbatim to stable/8 and previous
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branches.
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20110430:
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Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci'
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into their kernel configurations along with 'device pci'.
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20110427:
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The default NFS client is now the new NFS client, so fstype "newnfs"
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is now "nfs" and the regular/old NFS client is now fstype "oldnfs".
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Although mounts via fstype "nfs" will usually work without userland
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changes, it is recommended that the mount(8) and mount_nfs(8)
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commands be rebuilt from sources and that a link to mount_nfs called
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mount_oldnfs be created. The new client is compiled into the
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kernel with "options NFSCL" and this is needed for diskless root
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file systems. The GENERIC kernel configs have been changed to use
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NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER.
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To use the regular/old client, you can "mount -t oldnfs ...". For
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a diskless root file system, you must also include a line like:
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vfs.root.mountfrom="oldnfs:"
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in the boot/loader.conf on the root fs on the NFS server to make
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a diskless root fs use the old client.
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20110424:
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The GENERIC kernels for all architectures now default to the new
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CAM-based ATA stack. It means that all legacy ATA drivers were
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removed and replaced by respective CAM drivers. If you are using
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ATA device names in /etc/fstab or other places, make sure to update
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them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY,
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where 'Y's are the sequential numbers starting from zero for each type
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in order of detection, unless configured otherwise with tunables,
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see cam(4)). There will be symbolic links created in /dev/ to map
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old adX devices to the respective adaY. They should provide basic
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compatibility for file systems mounting in most cases, but they do
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not support old user-level APIs and do not have respective providers
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in GEOM. Consider using updated management tools with new device names.
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It is possible to load devices ahci, ata, siis and mvs as modules,
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but option ATA_CAM should remain in kernel configuration to make ata
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module work as CAM driver supporting legacy ATA controllers. Device ata
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still can be used in modular fashion (atacore + ...). Modules atadisk
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and atapi* are not used and won't affect operation in ATA_CAM mode.
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Note that to use CAM-based ATA kernel should include CAM devices
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scbus, pass, da (or explicitly ada), cd and optionally others. All of
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them are parts of the cam module.
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ataraid(4) functionality is now supported by the RAID GEOM class.
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To use it you can load geom_raid kernel module and use graid(8) tool
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for management. Instead of /dev/arX device names, use /dev/raid/rX.
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No kernel config options or code have been removed, so if a problem
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arises, please report it and optionally revert to the old ATA stack.
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In order to do it you can remove from the kernel config:
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options ATA_CAM
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device ahci
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device mvs
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device siis
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, and instead add back:
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device atadisk # ATA disk drives
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device ataraid # ATA RAID drives
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device atapicd # ATAPI CDROM drives
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device atapifd # ATAPI floppy drives
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device atapist # ATAPI tape drives
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20110423:
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The default NFS server has been changed to the new server, which
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was referred to as the experimental server. If you need to switch
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back to the old NFS server, you must now put the "-o" option on
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both the mountd and nfsd commands. This can be done using the
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mountd_flags and nfs_server_flags rc.conf variables until an
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update to the rc scripts is committed, which is coming soon.
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20110418:
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The GNU Objective-C runtime library (libobjc), and other Objective-C
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related components have been removed from the base system. If you
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require an Objective-C library, please use one of the available ports.
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20110331:
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ath(4) has been split into bus- and device- modules. if_ath contains
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the HAL, the TX rate control and the network device code. if_ath_pci
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contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb
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contains the AHB glue. Users need to load both if_ath_pci and if_ath
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in order to use ath on everything else.
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TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only
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need to load if_ath and if_ath_pci for ath(4) operation.
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20110314:
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As part of the replacement of sysinstall, the process of building
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release media has changed significantly. For details, please re-read
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release(7), which has been updated to reflect the new build process.
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20110218:
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GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This
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is the last available version under GPLv2. It brings a number of new
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features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE
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4.1 and SSE 4.2), better support for powerpc64, a number of new
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directives, and lots of other small improvements. See the ChangeLog
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file in contrib/binutils for the full details.
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20110218:
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IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868
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compliant, and will now use half of hash for authentication.
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This will break interoperability with all stacks (including all
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actual FreeBSD versions) who implement
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draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for
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authentication).
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The only workaround with such peers is to use another HMAC
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algorithm for IPsec ("phase 2") authentication.
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20110207:
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Remove the uio_yield prototype and symbol. This function has
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been misnamed since it was introduced and should not be
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globally exposed with this name. The equivalent functionality
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is now available using kern_yield(curthread->td_user_pri).
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The function remains undocumented.
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20110112:
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A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers,
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symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking
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for scalar sysctls is defined but disabled. Code that needs
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UQUAD to pass the type checking that must compile on older
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systems where the define is not present can check against
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__FreeBSD_version >= 900030.
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The system dialog(1) has been replaced with a new version previously
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in ports as devel/cdialog. dialog(1) is mostly command-line compatible
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with the previous version, but the libdialog associated with it has
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a largely incompatible API. As such, the original version of libdialog
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will be kept temporarily as libodialog, until its base system consumers
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are replaced or updated. Bump __FreeBSD_version to 900030.
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20110103:
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If you are trying to run make universe on a -stable system, and you get
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the following warning:
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"Makefile", line 356: "Target architecture for i386/conf/GENERIC
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unknown. config(8) likely too old."
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or something similar to it, then you must upgrade your -stable system
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to 8.2-Release or newer (really, any time after r210146 7/15/2010 in
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stable/8) or build the config from the latest stable/8 branch and
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install it on your system.
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Prior to this date, building a current universe on 8-stable system from
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between 7/15/2010 and 1/2/2011 would result in a weird shell parsing
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error in the first kernel build phase. A new config on those old
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systems will fix that problem for older versions of -current.
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20101228:
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The TCP stack has been modified to allow Khelp modules to interact with
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it via helper hook points and store per-connection data in the TCP
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control block. Bump __FreeBSD_version to 900029. User space tools that
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rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to
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be recompiled.
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20101114:
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Generic IEEE 802.3 annex 31B full duplex flow control support has been
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added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along
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with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted
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to take advantage of it instead of using custom implementations. This
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means that these drivers now no longer unconditionally advertise
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support for flow control but only do so if flow control is a selected
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media option. This was implemented in the generic support that way in
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order to allow flow control to be switched on and off via ifconfig(8)
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with the PHY specific default to typically off in order to protect
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from unwanted effects. Consequently, if you used flow control with
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one of the above mentioned drivers you now need to explicitly enable
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it, for example via:
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ifconfig bge0 media auto mediaopt flowcontrol
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Along with the above mentioned changes generic support for setting
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1000baseT master mode also has been added and brgphy(4), ciphy(4),
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e1000phy(4) as well as ip1000phy(4) have been converted to take
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advantage of it. This means that these drivers now no longer take the
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link0 parameter for selecting master mode but the master media option
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has to be used instead, for example like in the following:
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ifconfig bge0 media 1000baseT mediaopt full-duplex,master
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Selection of master mode now is also available with all other PHY
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drivers supporting 1000baseT.
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20101111:
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The TCP stack has received a significant update to add support for
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modularised congestion control and generally improve the clarity of
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congestion control decisions. Bump __FreeBSD_version to 900025. User
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space tools that rely on the size of struct tcpcb in tcp_var.h (e.g.
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sockstat) need to be recompiled.
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20101002:
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The man(1) utility has been replaced by a new version that no longer
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uses /etc/manpath.config. Please consult man.conf(5) for how to
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migrate local entries to the new format.
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20100928:
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The copyright strings printed by login(1) and sshd(8) at the time of a
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new connection have been removed to follow other operating systems and
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upstream sshd.
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20100915:
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A workaround for a fixed ld bug has been removed in kernel code,
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so make sure that your system ld is built from sources after
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revision 210245 from 2010-07-19 (r211583 if building head kernel
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on stable/8, r211584 for stable/7; both from 2010-08-21).
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A symptom of incorrect ld version is different addresses for
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set_pcpu section and __start_set_pcpu symbol in kernel and/or modules.
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20100913:
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The $ipv6_prefer variable in rc.conf(5) has been split into
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$ip6addrctl_policy and $ipv6_activate_all_interfaces.
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The $ip6addrctl_policy is a variable to choose a pre-defined
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address selection policy set by ip6addrctl(8). A value
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"ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The
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default is "AUTO".
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The $ipv6_activate_all_interfaces specifies whether IFDISABLED
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flag (see an entry of 20090926) is set on an interface with no
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corresponding $ifconfig_IF_ipv6 line. The default is "NO" for
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security reason. If you want IPv6 link-local address on all
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interfaces by default, set this to "YES".
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The old ipv6_prefer="YES" is equivalent to
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ipv6_activate_all_interfaces="YES" and
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ip6addrctl_policy="ipv6_prefer".
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20100913:
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DTrace has grown support for userland tracing. Due to this, DTrace is
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now i386 and amd64 only.
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dtruss(1) is now installed by default on those systems and a new
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kernel module is needed for userland tracing: fasttrap.
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No changes to your kernel config file are necessary to enable
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userland tracing, but you might consider adding 'STRIP=' and
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'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want
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to have informative userland stack traces in DTrace (ustack).
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20100725:
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The acpi_aiboost(4) driver has been removed in favor of the new
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aibs(4) driver. You should update your kernel configuration file.
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20100722:
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BSD grep has been imported to the base system and it is built by
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default. It is completely BSD licensed, highly GNU-compatible, uses
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less memory than its GNU counterpart and has a small codebase.
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However, it is slower than its GNU counterpart, which is mostly
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noticeable for larger searches, for smaller ones it is measurable
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but not significant. The reason is complex, the most important factor
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is that we lack a modern and efficient regex library and GNU
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overcomes this by optimizing the searches internally. Future work
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on improving the regex performance is planned, for the meantime,
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users that need better performance, can build GNU grep instead by
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setting the WITH_GNU_GREP knob.
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20100713:
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Due to the import of powerpc64 support, all existing powerpc kernel
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configuration files must be updated with a machine directive like this:
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machine powerpc powerpc
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In addition, an updated config(8) is required to build powerpc kernels
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after this change.
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20100713:
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A new version of ZFS (version 15) has been merged to -HEAD.
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This version uses a python library for the following subcommands:
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zfs allow, zfs unallow, zfs groupspace, zfs userspace.
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For full functionality of these commands the following port must
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be installed: sysutils/py-zfs
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20100429:
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'vm_page's are now hashed by physical address to an array of mutexes.
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Currently this is only used to serialize access to hold_count. Over
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time the page queue mutex will be peeled away. This changes the size
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of pmap on every architecture. And requires all callers of vm_page_hold
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and vm_page_unhold to be updated.
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20100402:
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WITH_CTF can now be specified in src.conf (not recommended, there
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are some problems with static executables), make.conf (would also
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affect ports which do not use GNU make and do not override the
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compile targets) or in the kernel config (via "makeoptions
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WITH_CTF=yes").
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When WITH_CTF was specified there before this was silently ignored,
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so make sure that WITH_CTF is not used in places which could lead
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to unwanted behavior.
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20100311:
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The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32
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to allow 32-bit compatibility on non-x86 platforms. All kernel
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configurations on amd64 and ia64 platforms using these options must
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be modified accordingly.
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20100113:
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The utmp user accounting database has been replaced with utmpx,
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the user accounting interface standardized by POSIX.
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Unfortunately the semantics of utmp and utmpx don't match,
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making it practically impossible to support both interfaces.
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The user accounting database is used by tools like finger(1),
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last(1), talk(1), w(1) and ac(8).
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All applications in the base system use utmpx. This means only
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local binaries (e.g. from the ports tree) may still use these
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utmp database files. These applications must be rebuilt to make
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use of utmpx.
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After the system has been upgraded, it is safe to remove the old
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log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*),
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assuming their contents is of no importance anymore. Old wtmp
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databases can only be used by last(1) and ac(8) after they have
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been converted to the new format using wtmpcvt(1).
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20100108:
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Introduce the kernel thread "deadlock resolver" (which can be enabled
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via the DEADLKRES option, see NOTES for more details) and the
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sleepq_type() function for sleepqueues.
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20091202:
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The rc.firewall and rc.firewall6 were unified, and
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rc.firewall6 and rc.d/ip6fw were removed.
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According to the removal of rc.d/ip6fw, ipv6_firewall_* rc
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variables are obsoleted. Instead, the following new rc
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variables are added to rc.d/ipfw:
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firewall_client_net_ipv6, firewall_simple_iif_ipv6,
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firewall_simple_inet_ipv6, firewall_simple_oif_ipv6,
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firewall_simple_onet_ipv6, firewall_trusted_ipv6
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The meanings correspond to the relevant IPv4 variables.
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20091125:
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8.0-RELEASE.
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20091113:
|
|
The default terminal emulation for syscons(4) has been changed
|
|
from cons25 to xterm on all platforms except pc98. This means
|
|
that the /etc/ttys file needs to be updated to ensure correct
|
|
operation of applications on the console.
|
|
|
|
The terminal emulation style can be toggled per window by using
|
|
vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration
|
|
options can be used to change the compile-time default back to
|
|
cons25.
|
|
|
|
To prevent graphical artifacts, make sure the TERM environment
|
|
variable is set to match the terminal emulation that is being
|
|
performed by syscons(4).
|
|
|
|
20091109:
|
|
The layout of the structure ieee80211req_scan_result has changed.
|
|
Applications that require wireless scan results (e.g. ifconfig(8))
|
|
from net80211 need to be recompiled.
|
|
|
|
Applications such as wpa_supplicant(8) may require a full world
|
|
build without using NO_CLEAN in order to get synchronized with the
|
|
new structure.
|
|
|
|
20091025:
|
|
The iwn(4) driver has been updated to support the 5000 and 5150 series.
|
|
There's one kernel module for each firmware. Adding "device iwnfw"
|
|
to the kernel configuration file means including all three firmware
|
|
images inside the kernel. If you want to include just the one for
|
|
your wireless card, use the the devices iwn4965fw, iwn5000fw or
|
|
iwn5150fw.
|
|
|
|
20090926:
|
|
The rc.d/network_ipv6, IPv6 configuration script has been integrated
|
|
into rc.d/netif. The changes are the following:
|
|
|
|
1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF
|
|
for IPv4. For aliases, $ifconfig_IF_aliasN should be used.
|
|
Note that both variables need the "inet6" keyword at the head.
|
|
|
|
Do not set $ipv6_network_interfaces manually if you do not
|
|
understand what you are doing. It is not needed in most cases.
|
|
|
|
$ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but
|
|
they are obsolete.
|
|
|
|
2. $ipv6_enable is obsolete. Use $ipv6_prefer and
|
|
"inet6 accept_rtadv" keyword in ifconfig(8) instead.
|
|
|
|
If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and
|
|
all configured interfaces have "inet6 accept_rtadv" in the
|
|
$ifconfig_IF_ipv6. These are for backward compatibility.
|
|
|
|
3. A new variable $ipv6_prefer has been added. If NO, IPv6
|
|
functionality of interfaces with no corresponding
|
|
$ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag,
|
|
and the default address selection policy of ip6addrctl(8)
|
|
is the IPv4-preferred one (see rc.d/ip6addrctl for more details).
|
|
Note that if you want to configure IPv6 functionality on the
|
|
disabled interfaces after boot, first you need to clear the flag by
|
|
using ifconfig(8) like:
|
|
|
|
ifconfig em0 inet6 -ifdisabled
|
|
|
|
If YES, the default address selection policy is set as
|
|
IPv6-preferred.
|
|
|
|
The default value of $ipv6_prefer is NO.
|
|
|
|
4. If your system need to receive Router Advertisement messages,
|
|
define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8)
|
|
scripts automatically invoke rtsol(8) when the interface becomes
|
|
UP. The Router Advertisement messages are used for SLAAC
|
|
(State-Less Address AutoConfiguration).
|
|
|
|
20090922:
|
|
802.11s D3.03 support was committed. This is incompatible with the
|
|
previous code, which was based on D3.0.
|
|
|
|
20090912:
|
|
A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value
|
|
of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to
|
|
control whether accepting Router Advertisement messages or not.
|
|
Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and
|
|
a sysctl variable net.inet6.ip6.auto_linklocal is its default value.
|
|
The ifconfig(8) utility now supports these flags.
|
|
|
|
20090910:
|
|
ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
|
|
mount(8) and -a option for df(1) to see them.
|
|
|
|
20090825:
|
|
The old tunable hw.bus.devctl_disable has been superseded by
|
|
hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be
|
|
replaced by hw.bus.devctl_queue=0. The default for this new tunable
|
|
is 1000.
|
|
|
|
20090813:
|
|
Remove the option STOP_NMI. The default action is now to use NMI only
|
|
for KDB via the newly introduced function stop_cpus_hard() and
|
|
maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64.
|
|
|
|
20090803:
|
|
The stable/8 branch created in subversion. This corresponds to the
|
|
RELENG_8 branch in CVS.
|
|
|
|
20090719:
|
|
Bump the shared library version numbers for all libraries that do not
|
|
use symbol versioning as part of the 8.0-RELEASE cycle. Bump
|
|
__FreeBSD_version to 800105.
|
|
|
|
20090714:
|
|
Due to changes in the implementation of virtual network stack support,
|
|
all network-related kernel modules must be recompiled. As this change
|
|
breaks the ABI, bump __FreeBSD_version to 800104.
|
|
|
|
20090713:
|
|
The TOE interface to the TCP syncache has been modified to remove
|
|
struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack.
|
|
The cxgb driver is the only TOE consumer affected by this change, and
|
|
needs to be recompiled along with the kernel. As this change breaks
|
|
the ABI, bump __FreeBSD_version to 800103.
|
|
|
|
20090712:
|
|
Padding has been added to struct tcpcb, sackhint and tcpstat in
|
|
<netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
|
|
maintaining the ABI. However, this change breaks the ABI, so bump
|
|
__FreeBSD_version to 800102. User space tools that rely on the size of
|
|
any of these structs (e.g. sockstat) need to be recompiled.
|
|
|
|
20090630:
|
|
The NFS_LEGACYRPC option has been removed along with the old kernel
|
|
RPC implementation that this option selected. Kernel configurations
|
|
may need to be adjusted.
|
|
|
|
20090629:
|
|
The network interface device nodes at /dev/net/<interface> have been
|
|
removed. All ioctl operations can be performed the normal way using
|
|
routing sockets. The kqueue functionality can generally be replaced
|
|
with routing sockets.
|
|
|
|
20090628:
|
|
The documentation from the FreeBSD Documentation Project (Handbook,
|
|
FAQ, etc.) is now installed via packages by sysinstall(8) and under
|
|
the /usr/local/share/doc/freebsd directory instead of /usr/share/doc.
|
|
|
|
20090624:
|
|
The ABI of various structures related to the SYSV IPC API have been
|
|
changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel
|
|
options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to
|
|
800100.
|
|
|
|
20090622:
|
|
Layout of struct vnet has changed as routing related variables were
|
|
moved to their own Vimage module. Modules need to be recompiled. Bump
|
|
__FreeBSD_version to 800099.
|
|
|
|
20090619:
|
|
NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024
|
|
respectively. As long as no more than 16 groups per process are used,
|
|
no changes should be visible. When more than 16 groups are used, old
|
|
binaries may fail if they call getgroups() or getgrouplist() with
|
|
statically sized storage. Recompiling will work around this, but
|
|
applications should be modified to use dynamically allocated storage
|
|
for group arrays as POSIX.1-2008 does not cap an implementation's
|
|
number of supported groups at NGROUPS_MAX+1 as previous versions did.
|
|
|
|
NFS and portalfs mounts may also be affected as the list of groups is
|
|
truncated to 16. Users of NFS who use more than 16 groups, should
|
|
take care that negative group permissions are not used on the exported
|
|
file systems as they will not be reliable unless a GSSAPI based
|
|
authentication method is used.
|
|
|
|
20090616:
|
|
The compiling option ADAPTIVE_LOCKMGRS has been introduced. This
|
|
option compiles in the support for adaptive spinning for lockmgrs
|
|
which want to enable it. The lockinit() function now accepts the flag
|
|
LK_ADAPTIVE in order to make the lock object subject to adaptive
|
|
spinning when both held in write and read mode.
|
|
|
|
20090613:
|
|
The layout of the structure returned by IEEE80211_IOC_STA_INFO has
|
|
changed. User applications that use this ioctl need to be rebuilt.
|
|
|
|
20090611:
|
|
The layout of struct thread has changed. Kernel and modules need to
|
|
be rebuilt.
|
|
|
|
20090608:
|
|
The layout of structs ifnet, domain, protosw and vnet_net has changed.
|
|
Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097.
|
|
|
|
20090602:
|
|
window(1) has been removed from the base system. It can now be
|
|
installed from ports. The port is called misc/window.
|
|
|
|
20090601:
|
|
The way we are storing and accessing `routing table' entries has
|
|
changed. Programs reading the FIB, like netstat, need to be
|
|
re-compiled.
|
|
|
|
20090601:
|
|
A new netisr implementation has been added for FreeBSD 8. Network
|
|
file system modules, such as igmp, ipdivert, and others, should be
|
|
rebuilt.
|
|
Bump __FreeBSD_version to 800096.
|
|
|
|
20090530:
|
|
Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no
|
|
more valid.
|
|
|
|
20090530:
|
|
Add VOP_ACCESSX(9). File system modules need to be rebuilt.
|
|
Bump __FreeBSD_version to 800094.
|
|
|
|
20090529:
|
|
Add mnt_xflag field to 'struct mount'. File system modules need to be
|
|
rebuilt.
|
|
Bump __FreeBSD_version to 800093.
|
|
|
|
20090528:
|
|
The compiling option ADAPTIVE_SX has been retired while it has been
|
|
introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
|
|
The KPI for sx_init_flags() changes as accepting flags:
|
|
SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has
|
|
been introduced in order to handle the reversed logic.
|
|
Bump __FreeBSD_version to 800092.
|
|
|
|
20090527:
|
|
Add support for hierarchical jails. Remove global securelevel.
|
|
Bump __FreeBSD_version to 800091.
|
|
|
|
20090523:
|
|
The layout of struct vnet_net has changed, therefore modules
|
|
need to be rebuilt.
|
|
Bump __FreeBSD_version to 800090.
|
|
|
|
20090523:
|
|
The newly imported zic(8) produces a new format in the output. Please
|
|
run tzsetup(8) to install the newly created data to /etc/localtime.
|
|
|
|
20090520:
|
|
The sysctl tree for the usb stack has renamed from hw.usb2.* to
|
|
hw.usb.* and is now consistent again with previous releases.
|
|
|
|
20090520:
|
|
802.11 monitor mode support was revised and driver api's were changed.
|
|
Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead
|
|
of DLT_IEEE802_11. No user-visible data structures were changed but
|
|
applications that use DLT_IEEE802_11 may require changes.
|
|
Bump __FreeBSD_version to 800088.
|
|
|
|
20090430:
|
|
The layout of the following structs has changed: sysctl_oid,
|
|
socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
|
|
vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
|
|
panics may be experienced. World rebuild is required for
|
|
correctly checking networking state from userland.
|
|
Bump __FreeBSD_version to 800085.
|
|
|
|
20090429:
|
|
MLDv2 and Source-Specific Multicast (SSM) have been merged
|
|
to the IPv6 stack. VIMAGE hooks are in but not yet used.
|
|
The implementation of SSM within FreeBSD's IPv6 stack closely
|
|
follows the IPv4 implementation.
|
|
|
|
For kernel developers:
|
|
|
|
* The most important changes are that the ip6_output() and
|
|
ip6_input() paths no longer take the IN6_MULTI_LOCK,
|
|
and this lock has been downgraded to a non-recursive mutex.
|
|
|
|
* As with the changes to the IPv4 stack to support SSM, filtering
|
|
of inbound multicast traffic must now be performed by transport
|
|
protocols within the IPv6 stack. This does not apply to TCP and
|
|
SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
|
|
|
|
* The KPIs used by IPv6 multicast are similar to those used by
|
|
the IPv4 stack, with the following differences:
|
|
* im6o_mc_filter() is analogous to imo_multicast_filter().
|
|
* The legacy KAME entry points in6_joingroup and in6_leavegroup()
|
|
are shimmed to in6_mc_join() and in6_mc_leave() respectively.
|
|
* IN6_LOOKUP_MULTI() has been deprecated and removed.
|
|
* IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
|
|
for MLDv1 have an additional 'timer' argument which is used to
|
|
jitter the initial membership report for the solicited-node
|
|
multicast membership on-link.
|
|
* This is not strictly needed for MLDv2, which already jitters
|
|
its report transmissions. However, the 'timer' argument is
|
|
preserved in case MLDv1 is active on the interface.
|
|
|
|
* The KAME linked-list based IPv6 membership implementation has
|
|
been refactored to use a vector similar to that used by the IPv4
|
|
stack.
|
|
Code which maintains a list of its own multicast memberships
|
|
internally, e.g. carp, has been updated to reflect the new
|
|
semantics.
|
|
|
|
* There is a known Lock Order Reversal (LOR) due to in6_setscope()
|
|
acquiring the IF_AFDATA_LOCK and being called within ip6_output().
|
|
Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
|
|
implementation constraint which needs to be addressed in HEAD.
|
|
|
|
For application developers:
|
|
|
|
* The changes are broadly similar to those made for the IPv4
|
|
stack.
|
|
|
|
* The use of IPv4 and IPv6 multicast socket options on the same
|
|
socket, using mapped addresses, HAS NOT been tested or supported.
|
|
|
|
* There are a number of issues with the implementation of various
|
|
IPv6 multicast APIs which need to be resolved in the API surface
|
|
before the implementation is fully compatible with KAME userland
|
|
use, and these are mostly to do with interface index treatment.
|
|
|
|
* The literature available discusses the use of either the delta / ASM
|
|
API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
|
|
using setsourcefilter(3)/getsourcefilter(3). For more information
|
|
please refer to RFC 3768, 'Socket Interface Extensions for
|
|
Multicast Source Filters'.
|
|
|
|
* Applications which use the published RFC 3678 APIs should be fine.
|
|
|
|
For systems administrators:
|
|
|
|
* The mtest(8) utility has been refactored to support IPv6, in
|
|
addition to IPv4. Interface addresses are no longer accepted
|
|
as arguments, their names must be used instead. The utility
|
|
will map the interface name to its first IPv4 address as
|
|
returned by getifaddrs(3).
|
|
|
|
* The ifmcstat(8) utility has also been updated to print the MLDv2
|
|
endpoint state and source filter lists via sysctl(3).
|
|
|
|
* The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
|
|
loopback of IPv6 multicast datagrams by default; it defaults to 1
|
|
to preserve the existing behaviour. Disabling multicast loopback is
|
|
recommended for optimal system performance.
|
|
|
|
* The IPv6 MROUTING code has been changed to examine this sysctl
|
|
instead of attempting to perform a group lookup before looping
|
|
back forwarded datagrams.
|
|
|
|
Bump __FreeBSD_version to 800084.
|
|
|
|
20090422:
|
|
Implement low-level Bluetooth HCI API.
|
|
Bump __FreeBSD_version to 800083.
|
|
|
|
20090419:
|
|
The layout of struct malloc_type, used by modules to register new
|
|
memory allocation types, has changed. Most modules will need to
|
|
be rebuilt or panics may be experienced.
|
|
Bump __FreeBSD_version to 800081.
|
|
|
|
20090415:
|
|
Anticipate overflowing inp_flags - add inp_flags2.
|
|
This changes most offsets in inpcb, so checking v4 connection
|
|
state will require a world rebuild.
|
|
Bump __FreeBSD_version to 800080.
|
|
|
|
20090415:
|
|
Add an llentry to struct route and struct route_in6. Modules
|
|
embedding a struct route will need to be recompiled.
|
|
Bump __FreeBSD_version to 800079.
|
|
|
|
20090414:
|
|
The size of rt_metrics_lite and by extension rtentry has changed.
|
|
Networking administration apps will need to be recompiled.
|
|
The route command now supports show as an alias for get, weighting
|
|
of routes, sticky and nostick flags to alter the behavior of stateful
|
|
load balancing.
|
|
Bump __FreeBSD_version to 800078.
|
|
|
|
20090408:
|
|
Do not use Giant for kbdmux(4) locking. This is wrong and
|
|
apparently causing more problems than it solves. This will
|
|
re-open the issue where interrupt handlers may race with
|
|
kbdmux(4) in polling mode. Typical symptoms include (but
|
|
not limited to) duplicated and/or missing characters when
|
|
low level console functions (such as gets) are used while
|
|
interrupts are enabled (for example geli password prompt,
|
|
mountroot prompt etc.). Disabling kbdmux(4) may help.
|
|
|
|
20090407:
|
|
The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
|
|
kernel modules referencing any of the above need to be recompiled.
|
|
Bump __FreeBSD_version to 800075.
|
|
|
|
20090320:
|
|
GEOM_PART has become the default partition slicer for storage devices,
|
|
replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
|
|
introduces some changes:
|
|
|
|
MSDOS/EBR: the devices created from MSDOS extended partition entries
|
|
(EBR) can be named differently than with GEOM_MBR and are now symlinks
|
|
to devices with offset-based names. fstabs may need to be modified.
|
|
|
|
BSD: the "geometry does not match label" warning is harmless in most
|
|
cases but it points to problems in file system misalignment with
|
|
disk geometry. The "c" partition is now implicit, covers the whole
|
|
top-level drive and cannot be (mis)used by users.
|
|
|
|
General: Kernel dumps are now not allowed to be written to devices
|
|
whose partition types indicate they are meant to be used for file
|
|
systems (or, in case of MSDOS partitions, as something else than
|
|
the "386BSD" type).
|
|
|
|
Most of these changes date approximately from 200812.
|
|
|
|
20090319:
|
|
The uscanner(4) driver has been removed from the kernel. This follows
|
|
Linux removing theirs in 2.6 and making libusb the default interface
|
|
(supported by sane).
|
|
|
|
20090319:
|
|
The multicast forwarding code has been cleaned up. netstat(1)
|
|
only relies on KVM now for printing bandwidth upcall meters.
|
|
The IPv4 and IPv6 modules are split into ip_mroute_mod and
|
|
ip6_mroute_mod respectively. The config(5) options for statically
|
|
compiling this code remain the same, i.e. 'options MROUTING'.
|
|
|
|
20090315:
|
|
Support for the IFF_NEEDSGIANT network interface flag has been
|
|
removed, which means that non-MPSAFE network device drivers are no
|
|
longer supported. In particular, if_ar, if_sr, and network device
|
|
drivers from the old (legacy) USB stack can no longer be built or
|
|
used.
|
|
|
|
20090313:
|
|
POSIX.1 Native Language Support (NLS) has been enabled in libc and
|
|
a bunch of new language catalog files have also been added.
|
|
This means that some common libc messages are now localized and
|
|
they depend on the LC_MESSAGES environmental variable.
|
|
|
|
20090313:
|
|
The k8temp(4) driver has been renamed to amdtemp(4) since
|
|
support for Family 10 and Family 11 CPU families was added.
|
|
|
|
20090309:
|
|
IGMPv3 and Source-Specific Multicast (SSM) have been merged
|
|
to the IPv4 stack. VIMAGE hooks are in but not yet used.
|
|
|
|
For kernel developers, the most important changes are that the
|
|
ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
|
|
and this lock has been downgraded to a non-recursive mutex.
|
|
|
|
Transport protocols (UDP, Raw IP) are now responsible for filtering
|
|
inbound multicast traffic according to group membership and source
|
|
filters. The imo_multicast_filter() KPI exists for this purpose.
|
|
Transports which do not use multicast (SCTP, TCP) already reject
|
|
multicast by default. Forwarding and receive performance may improve
|
|
as a mutex acquisition is no longer needed in the ip_input()
|
|
low-level input path. in_addmulti() and in_delmulti() are shimmed
|
|
to new KPIs which exist to support SSM in-kernel.
|
|
|
|
For application developers, it is recommended that loopback of
|
|
multicast datagrams be disabled for best performance, as this
|
|
will still cause the lock to be taken for each looped-back
|
|
datagram transmission. The net.inet.ip.mcast.loop sysctl may
|
|
be tuned to 0 to disable loopback by default; it defaults to 1
|
|
to preserve the existing behaviour.
|
|
|
|
For systems administrators, to obtain best performance with
|
|
multicast reception and multiple groups, it is always recommended
|
|
that a card with a suitably precise hash filter is used. Hash
|
|
collisions will still result in the lock being taken within the
|
|
transport protocol input path to check group membership.
|
|
|
|
If deploying FreeBSD in an environment with IGMP snooping switches,
|
|
it is recommended that the net.inet.igmp.sendlocal sysctl remain
|
|
enabled; this forces 224.0.0.0/24 group membership to be announced
|
|
via IGMP.
|
|
|
|
The size of 'struct igmpstat' has changed; netstat needs to be
|
|
recompiled to reflect this.
|
|
Bump __FreeBSD_version to 800070.
|
|
|
|
20090309:
|
|
libusb20.so.1 is now installed as libusb.so.1 and the ports system
|
|
updated to use it. This requires a buildworld/installworld in order to
|
|
update the library and dependencies (usbconfig, etc). Its advisable to
|
|
rebuild all ports which uses libusb. More specific directions are given
|
|
in the ports collection UPDATING file. Any /etc/libmap.conf entries for
|
|
libusb are no longer required and can be removed.
|
|
|
|
20090302:
|
|
A workaround is committed to allow the creation of System V shared
|
|
memory segment of size > 2 GB on the 64-bit architectures.
|
|
Due to a limitation of the existing ABI, the shm_segsz member
|
|
of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
|
|
wrong for large segments. Note that limits must be explicitly
|
|
raised to allow such segments to be created.
|
|
|
|
20090301:
|
|
The layout of struct ifnet has changed, requiring a rebuild of all
|
|
network device driver modules.
|
|
|
|
20090227:
|
|
The /dev handling for the new USB stack has changed, a
|
|
buildworld/installworld is required for libusb20.
|
|
|
|
20090223:
|
|
The new USB2 stack has now been permanently moved in and all kernel and
|
|
module names reverted to their previous values (eg, usb, ehci, ohci,
|
|
ums, ...). The old usb stack can be compiled in by prefixing the name
|
|
with the letter 'o', the old usb modules have been removed.
|
|
Updating entry 20090216 for xorg and 20090215 for libmap may still
|
|
apply.
|
|
|
|
20090217:
|
|
The rc.conf(5) option if_up_delay has been renamed to
|
|
defaultroute_delay to better reflect its purpose. If you have
|
|
customized this setting in /etc/rc.conf you need to update it to
|
|
use the new name.
|
|
|
|
20090216:
|
|
xorg 7.4 wants to configure its input devices via hald which does not
|
|
yet work with USB2. If the keyboard/mouse does not work in xorg then
|
|
add
|
|
Option "AllowEmptyInput" "off"
|
|
to your ServerLayout section. This will cause X to use the configured
|
|
kbd and mouse sections from your xorg.conf.
|
|
|
|
20090215:
|
|
The GENERIC kernels for all architectures now default to the new USB2
|
|
stack. No kernel config options or code have been removed so if a
|
|
problem arises please report it and optionally revert to the old USB
|
|
stack. If you are loading USB kernel modules or have a custom kernel
|
|
that includes GENERIC then ensure that usb names are also changed over,
|
|
eg uftdi -> usb2_serial_ftdi.
|
|
|
|
Older programs linked against the ports libusb 0.1 need to be
|
|
redirected to the new stack's libusb20. /etc/libmap.conf can
|
|
be used for this:
|
|
# Map old usb library to new one for usb2 stack
|
|
libusb-0.1.so.8 libusb20.so.1
|
|
|
|
20090209:
|
|
All USB ethernet devices now attach as interfaces under the name ueN
|
|
(eg. ue0). This is to provide a predictable name as vendors often
|
|
change usb chipsets in a product without notice.
|
|
|
|
20090203:
|
|
The ichsmb(4) driver has been changed to require SMBus slave
|
|
addresses be left-justified (xxxxxxx0b) rather than right-justified.
|
|
All of the other SMBus controller drivers require left-justified
|
|
slave addresses, so this change makes all the drivers provide the
|
|
same interface.
|
|
|
|
20090201:
|
|
INET6 statistics (struct ip6stat) was updated.
|
|
netstat(1) needs to be recompiled.
|
|
|
|
20090119:
|
|
NTFS has been removed from GENERIC kernel on amd64 to match
|
|
GENERIC on i386. Should not cause any issues since mount_ntfs(8)
|
|
will load ntfs.ko module automatically when NTFS support is
|
|
actually needed, unless ntfs.ko is not installed or security
|
|
level prohibits loading kernel modules. If either is the case,
|
|
"options NTFS" has to be added into kernel config.
|
|
|
|
20090115:
|
|
TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
|
|
New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
|
|
800061. User space tools that rely on the size of struct tcpcb in
|
|
tcp_var.h (e.g. sockstat) need to be recompiled.
|
|
|
|
20081225:
|
|
ng_tty(4) module updated to match the new TTY subsystem.
|
|
Due to API change, user-level applications must be updated.
|
|
New API support added to mpd5 CVS and expected to be present
|
|
in next mpd5.3 release.
|
|
|
|
20081219:
|
|
With __FreeBSD_version 800060 the makefs tool is part of
|
|
the base system (it was a port).
|
|
|
|
20081216:
|
|
The afdata and ifnet locks have been changed from mutexes to
|
|
rwlocks, network modules will need to be re-compiled.
|
|
|
|
20081214:
|
|
__FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
|
|
RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
|
|
The new code reduced struct rtentry{} by 16 bytes on 32-bit
|
|
architecture and 40 bytes on 64-bit architecture. The userland
|
|
applications "arp" and "ndp" have been updated accordingly.
|
|
The output from "netstat -r" shows only routing entries and
|
|
none of the L2 information.
|
|
|
|
20081130:
|
|
__FreeBSD_version 800057 marks the switchover from the
|
|
binary ath hal to source code. Users must add the line:
|
|
|
|
options AH_SUPPORT_AR5416
|
|
|
|
to their kernel config files when specifying:
|
|
|
|
device ath_hal
|
|
|
|
The ath_hal module no longer exists; the code is now compiled
|
|
together with the driver in the ath module. It is now
|
|
possible to tailor chip support (i.e. reduce the set of chips
|
|
and thereby the code size); consult ath_hal(4) for details.
|
|
|
|
20081121:
|
|
__FreeBSD_version 800054 adds memory barriers to
|
|
<machine/atomic.h>, new interfaces to ifnet to facilitate
|
|
multiple hardware transmit queues for cards that support
|
|
them, and a lock-less ring-buffer implementation to
|
|
enable drivers to more efficiently manage queueing of
|
|
packets.
|
|
|
|
20081117:
|
|
A new version of ZFS (version 13) has been merged to -HEAD.
|
|
This version has zpool attribute "listsnapshots" off by
|
|
default, which means "zfs list" does not show snapshots,
|
|
and is the same as Solaris behavior.
|
|
|
|
20081028:
|
|
dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
|
|
|
|
20081009:
|
|
The uhci, ohci, ehci and slhci USB Host controller drivers have
|
|
been put into separate modules. If you load the usb module
|
|
separately through loader.conf you will need to load the
|
|
appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
|
|
controller add the following to loader.conf:
|
|
|
|
uhci_load="YES"
|
|
ehci_load="YES"
|
|
|
|
20081009:
|
|
The ABI used by the PMC toolset has changed. Please keep
|
|
userland (libpmc(3)) and the kernel module (hwpmc(4)) in
|
|
sync.
|
|
|
|
20081009:
|
|
atapci kernel module now includes only generic PCI ATA
|
|
driver. AHCI driver moved to ataahci kernel module.
|
|
All vendor-specific code moved into separate kernel modules:
|
|
ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
|
|
atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
|
|
atamarvell, atamicron, atanational, atanetcell, atanvidia,
|
|
atapromise, ataserverworks, atasiliconimage, atasis, atavia
|
|
|
|
20080820:
|
|
The TTY subsystem of the kernel has been replaced by a new
|
|
implementation, which provides better scalability and an
|
|
improved driver model. Most common drivers have been migrated to
|
|
the new TTY subsystem, while others have not. The following
|
|
drivers have not yet been ported to the new TTY layer:
|
|
|
|
PCI/ISA:
|
|
cy, digi, rc, rp, sio
|
|
|
|
USB:
|
|
ubser, ucycom
|
|
|
|
Line disciplines:
|
|
ng_h4, ng_tty, ppp, sl, snp
|
|
|
|
Adding these drivers to your kernel configuration file shall
|
|
cause compilation to fail.
|
|
|
|
20080818:
|
|
ntpd has been upgraded to 4.2.4p5.
|
|
|
|
20080801:
|
|
OpenSSH has been upgraded to 5.1p1.
|
|
|
|
For many years, FreeBSD's version of OpenSSH preferred DSA
|
|
over RSA for host and user authentication keys. With this
|
|
upgrade, we've switched to the vendor's default of RSA over
|
|
DSA. This may cause upgraded clients to warn about unknown
|
|
host keys even for previously known hosts. Users should
|
|
follow the usual procedure for verifying host keys before
|
|
accepting the RSA key.
|
|
|
|
This can be circumvented by setting the "HostKeyAlgorithms"
|
|
option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
|
|
command line.
|
|
|
|
Please note that the sequence of keys offered for
|
|
authentication has been changed as well. You may want to
|
|
specify IdentityFile in a different order to revert this
|
|
behavior.
|
|
|
|
20080713:
|
|
The sio(4) driver has been removed from the i386 and amd64
|
|
kernel configuration files. This means uart(4) is now the
|
|
default serial port driver on those platforms as well.
|
|
|
|
To prevent collisions with the sio(4) driver, the uart(4) driver
|
|
uses different names for its device nodes. This means the
|
|
onboard serial port will now most likely be called "ttyu0"
|
|
instead of "ttyd0". You may need to reconfigure applications to
|
|
use the new device names.
|
|
|
|
When using the serial port as a boot console, be sure to update
|
|
/boot/device.hints and /etc/ttys before booting the new kernel.
|
|
If you forget to do so, you can still manually specify the hints
|
|
at the loader prompt:
|
|
|
|
set hint.uart.0.at="isa"
|
|
set hint.uart.0.port="0x3F8"
|
|
set hint.uart.0.flags="0x10"
|
|
set hint.uart.0.irq="4"
|
|
boot -s
|
|
|
|
20080609:
|
|
The gpt(8) utility has been removed. Use gpart(8) to partition
|
|
disks instead.
|
|
|
|
20080603:
|
|
The version that Linuxulator emulates was changed from 2.4.2
|
|
to 2.6.16. If you experience any problems with Linux binaries
|
|
please try to set sysctl compat.linux.osrelease to 2.4.2 and
|
|
if it fixes the problem contact emulation mailing list.
|
|
|
|
20080525:
|
|
ISDN4BSD (I4B) was removed from the src tree. You may need to
|
|
update a your kernel configuration and remove relevant entries.
|
|
|
|
20080509:
|
|
I have checked in code to support multiple routing tables.
|
|
See the man pages setfib(1) and setfib(2).
|
|
This is a hopefully backwards compatible version,
|
|
but to make use of it you need to compile your kernel
|
|
with options ROUTETABLES=2 (or more up to 16).
|
|
|
|
20080420:
|
|
The 802.11 wireless support was redone to enable multi-bss
|
|
operation on devices that are capable. The underlying device
|
|
is no longer used directly but instead wlanX devices are
|
|
cloned with ifconfig. This requires changes to rc.conf files.
|
|
For example, change:
|
|
ifconfig_ath0="WPA DHCP"
|
|
to
|
|
wlans_ath0=wlan0
|
|
ifconfig_wlan0="WPA DHCP"
|
|
see rc.conf(5) for more details. In addition, mergemaster of
|
|
/etc/rc.d is highly recommended. Simultaneous update of userland
|
|
and kernel wouldn't hurt either.
|
|
|
|
As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
|
|
modules were merged into the base wlan module. All references
|
|
to these modules (e.g. in kernel config files) must be removed.
|
|
|
|
20080408:
|
|
psm(4) has gained write(2) support in native operation level.
|
|
Arbitrary commands can be written to /dev/psm%d and status can
|
|
be read back from it. Therefore, an application is responsible
|
|
for status validation and error recovery. It is a no-op in
|
|
other operation levels.
|
|
|
|
20080312:
|
|
Support for KSE threading has been removed from the kernel. To
|
|
run legacy applications linked against KSE libmap.conf may
|
|
be used. The following libmap.conf may be used to ensure
|
|
compatibility with any prior release:
|
|
|
|
libpthread.so.1 libthr.so.1
|
|
libpthread.so.2 libthr.so.2
|
|
libkse.so.3 libthr.so.3
|
|
|
|
20080301:
|
|
The layout of struct vmspace has changed. This affects libkvm
|
|
and any executables that link against libkvm and use the
|
|
kvm_getprocs() function. In particular, but not exclusively,
|
|
it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
|
|
The effects are minimal, but it's advisable to upgrade world
|
|
nonetheless.
|
|
|
|
20080229:
|
|
The latest em driver no longer has support in it for the
|
|
82575 adapter, this is now moved to the igb driver. The
|
|
split was done to make new features that are incompatible
|
|
with older hardware easier to do.
|
|
|
|
20080220:
|
|
The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
|
|
likewise the kernel option is now GEOM_LINUX_LVM.
|
|
|
|
20080211:
|
|
The default NFS mount mode has changed from UDP to TCP for
|
|
increased reliability. If you rely on (insecurely) NFS
|
|
mounting across a firewall you may need to update your
|
|
firewall rules.
|
|
|
|
20080208:
|
|
Belatedly note the addition of m_collapse for compacting
|
|
mbuf chains.
|
|
|
|
20080126:
|
|
The fts(3) structures have been changed to use adequate
|
|
integer types for their members and so to be able to cope
|
|
with huge file trees. The old fts(3) ABI is preserved
|
|
through symbol versioning in libc, so third-party binaries
|
|
using fts(3) should still work, although they will not take
|
|
advantage of the extended types. At the same time, some
|
|
third-party software might fail to build after this change
|
|
due to unportable assumptions made in its source code about
|
|
fts(3) structure members. Such software should be fixed
|
|
by its vendor or, in the worst case, in the ports tree.
|
|
FreeBSD_version 800015 marks this change for the unlikely
|
|
case that a portable fix is impossible.
|
|
|
|
20080123:
|
|
To upgrade to -current after this date, you must be running
|
|
FreeBSD not older than 6.0-RELEASE. Upgrading to -current
|
|
from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
|
|
|
|
20071128:
|
|
The ADAPTIVE_GIANT kernel option has been retired because its
|
|
functionality is the default now.
|
|
|
|
20071118:
|
|
The AT keyboard emulation of sunkbd(4) has been turned on
|
|
by default. In order to make the special symbols of the Sun
|
|
keyboards driven by sunkbd(4) work under X these now have
|
|
to be configured the same way as Sun USB keyboards driven
|
|
by ukbd(4) (which also does AT keyboard emulation), f.e.:
|
|
|
|
Option "XkbLayout" "us"
|
|
Option "XkbRules" "xorg"
|
|
Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
|
|
|
|
20071024:
|
|
It has been decided that it is desirable to provide ABI
|
|
backwards compatibility to the FreeBSD 4/5/6 versions of the
|
|
PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
|
|
broken with the introduction of PCI domain support (see the
|
|
20070930 entry). Unfortunately, this required the ABI of
|
|
PCIOCGETCONF to be broken again in order to be able to
|
|
provide backwards compatibility to the old version of that
|
|
IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
|
|
again. As for prominent ports this affects neither pciutils
|
|
nor xorg-server this time, the hal port needs to be rebuilt
|
|
however.
|
|
|
|
20071020:
|
|
The misnamed kthread_create() and friends have been renamed
|
|
to kproc_create() etc. Many of the callers already
|
|
used kproc_start()..
|
|
I will return kthread_create() and friends in a while
|
|
with implementations that actually create threads, not procs.
|
|
Renaming corresponds with version 800002.
|
|
|
|
20071010:
|
|
RELENG_7 branched.
|
|
|
|
COMMON ITEMS:
|
|
|
|
General Notes
|
|
-------------
|
|
Avoid using make -j when upgrading. While generally safe, there are
|
|
sometimes problems using -j to upgrade. If your upgrade fails with
|
|
-j, please try again without -j. From time to time in the past there
|
|
have been problems using -j with buildworld and/or installworld. This
|
|
is especially true when upgrading between "distant" versions (eg one
|
|
that cross a major release boundary or several minor releases, or when
|
|
several months have passed on the -current branch).
|
|
|
|
Sometimes, obscure build problems are the result of environment
|
|
poisoning. This can happen because the make utility reads its
|
|
environment when searching for values for global variables. To run
|
|
your build attempts in an "environmental clean room", prefix all make
|
|
commands with 'env -i '. See the env(1) manual page for more details.
|
|
|
|
When upgrading from one major version to another it is generally best
|
|
to upgrade to the latest code in the currently installed branch first,
|
|
then do an upgrade to the new branch. This is the best-tested upgrade
|
|
path, and has the highest probability of being successful. Please try
|
|
this approach before reporting problems with a major version upgrade.
|
|
|
|
ZFS notes
|
|
---------
|
|
When upgrading the boot ZFS pool to a new version, always follow
|
|
these two steps:
|
|
|
|
1.) recompile and reinstall the ZFS boot loader and boot block
|
|
(this is part of "make buildworld" and "make installworld")
|
|
|
|
2.) update the ZFS boot block on your boot drive
|
|
|
|
The following example updates the ZFS boot block on the first
|
|
partition (freebsd-boot) of a GPT partitioned drive ad0:
|
|
"gpart bootcode -p /boot/gptzfsboot -i 1 ad0"
|
|
|
|
Non-boot pools do not need these updates.
|
|
|
|
To build a kernel
|
|
-----------------
|
|
If you are updating from a prior version of FreeBSD (even one just
|
|
a few days old), you should follow this procedure. It is the most
|
|
failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
|
|
|
|
make kernel-toolchain
|
|
make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
|
|
make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
|
|
|
|
To test a kernel once
|
|
---------------------
|
|
If you just want to boot a kernel once (because you are not sure
|
|
if it works, or if you want to boot a known bad kernel to provide
|
|
debugging information) run
|
|
make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
|
|
nextboot -k testkernel
|
|
|
|
To just build a kernel when you know that it won't mess you up
|
|
--------------------------------------------------------------
|
|
This assumes you are already running a CURRENT system. Replace
|
|
${arch} with the architecture of your machine (e.g. "i386",
|
|
"arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc).
|
|
|
|
cd src/sys/${arch}/conf
|
|
config KERNEL_NAME_HERE
|
|
cd ../compile/KERNEL_NAME_HERE
|
|
make depend
|
|
make
|
|
make install
|
|
|
|
If this fails, go to the "To build a kernel" section.
|
|
|
|
To rebuild everything and install it on the current system.
|
|
-----------------------------------------------------------
|
|
# Note: sometimes if you are running current you gotta do more than
|
|
# is listed here if you are upgrading from a really old current.
|
|
|
|
<make sure you have good level 0 dumps>
|
|
make buildworld
|
|
make kernel KERNCONF=YOUR_KERNEL_HERE
|
|
[1]
|
|
<reboot in single user> [3]
|
|
mergemaster -p [5]
|
|
make installworld
|
|
mergemaster -i [4]
|
|
make delete-old [6]
|
|
<reboot>
|
|
|
|
|
|
To cross-install current onto a separate partition
|
|
--------------------------------------------------
|
|
# In this approach we use a separate partition to hold
|
|
# current's root, 'usr', and 'var' directories. A partition
|
|
# holding "/", "/usr" and "/var" should be about 2GB in
|
|
# size.
|
|
|
|
<make sure you have good level 0 dumps>
|
|
<boot into -stable>
|
|
make buildworld
|
|
make buildkernel KERNCONF=YOUR_KERNEL_HERE
|
|
<maybe newfs current's root partition>
|
|
<mount current's root partition on directory ${CURRENT_ROOT}>
|
|
make installworld DESTDIR=${CURRENT_ROOT}
|
|
make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
|
|
make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
|
|
cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
|
|
<edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
|
|
<reboot into current>
|
|
<do a "native" rebuild/install as described in the previous section>
|
|
<maybe install compatibility libraries from ports/misc/compat*>
|
|
<reboot>
|
|
|
|
|
|
To upgrade in-place from 8.x-stable to current
|
|
----------------------------------------------
|
|
<make sure you have good level 0 dumps>
|
|
make buildworld [9]
|
|
make kernel KERNCONF=YOUR_KERNEL_HERE [8]
|
|
[1]
|
|
<reboot in single user> [3]
|
|
mergemaster -p [5]
|
|
make installworld
|
|
mergemaster -i [4]
|
|
make delete-old [6]
|
|
<reboot>
|
|
|
|
Make sure that you've read the UPDATING file to understand the
|
|
tweaks to various things you need. At this point in the life
|
|
cycle of current, things change often and you are on your own
|
|
to cope. The defaults can also change, so please read ALL of
|
|
the UPDATING entries.
|
|
|
|
Also, if you are tracking -current, you must be subscribed to
|
|
freebsd-current@freebsd.org. Make sure that before you update
|
|
your sources that you have read and understood all the recent
|
|
messages there. If in doubt, please track -stable which has
|
|
much fewer pitfalls.
|
|
|
|
[1] If you have third party modules, such as vmware, you
|
|
should disable them at this point so they don't crash your
|
|
system on reboot.
|
|
|
|
[3] From the bootblocks, boot -s, and then do
|
|
fsck -p
|
|
mount -u /
|
|
mount -a
|
|
cd src
|
|
adjkerntz -i # if CMOS is wall time
|
|
Also, when doing a major release upgrade, it is required that
|
|
you boot into single user mode to do the installworld.
|
|
|
|
[4] Note: This step is non-optional. Failure to do this step
|
|
can result in a significant reduction in the functionality of the
|
|
system. Attempting to do it by hand is not recommended and those
|
|
that pursue this avenue should read this file carefully, as well
|
|
as the archives of freebsd-current and freebsd-hackers mailing lists
|
|
for potential gotchas. The -U option is also useful to consider.
|
|
See mergemaster(8) for more information.
|
|
|
|
[5] Usually this step is a noop. However, from time to time
|
|
you may need to do this if you get unknown user in the following
|
|
step. It never hurts to do it all the time. You may need to
|
|
install a new mergemaster (cd src/usr.sbin/mergemaster && make
|
|
install) after the buildworld before this step if you last updated
|
|
from current before 20020224 or from -stable before 20020408.
|
|
|
|
[6] This only deletes old files and directories. Old libraries
|
|
can be deleted by "make delete-old-libs", but you have to make
|
|
sure that no program is using those libraries anymore.
|
|
|
|
[8] In order to have a kernel that can run the 4.x binaries needed to
|
|
do an installworld, you must include the COMPAT_FREEBSD4 option in
|
|
your kernel. Failure to do so may leave you with a system that is
|
|
hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is
|
|
required to run the 5.x binaries on more recent kernels. And so on
|
|
for COMPAT_FREEBSD6 and COMPAT_FREEBSD7.
|
|
|
|
Make sure that you merge any new devices from GENERIC since the
|
|
last time you updated your kernel config file.
|
|
|
|
[9] When checking out sources, you must include the -P flag to have
|
|
cvs prune empty directories.
|
|
|
|
If CPUTYPE is defined in your /etc/make.conf, make sure to use the
|
|
"?=" instead of the "=" assignment operator, so that buildworld can
|
|
override the CPUTYPE if it needs to.
|
|
|
|
MAKEOBJDIRPREFIX must be defined in an environment variable, and
|
|
not on the command line, or in /etc/make.conf. buildworld will
|
|
warn if it is improperly defined.
|
|
FORMAT:
|
|
|
|
This file contains a list, in reverse chronological order, of major
|
|
breakages in tracking -current. It is not guaranteed to be a complete
|
|
list of such breakages, and only contains entries since October 10, 2007.
|
|
If you need to see UPDATING entries from before that date, you will need
|
|
to fetch an UPDATING file from an older FreeBSD release.
|
|
|
|
Copyright information:
|
|
|
|
Copyright 1998-2009 M. Warner Losh. All Rights Reserved.
|
|
|
|
Redistribution, publication, translation and use, with or without
|
|
modification, in full or in part, in any form or format of this
|
|
document are permitted without further permission from the author.
|
|
|
|
THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
|
|
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
|
|
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
|
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
Contact Warner Losh if you have any questions about your use of
|
|
this document.
|
|
|
|
$FreeBSD$
|