9 Udevstart is removed from the tree, it did not get installed for
10 a long time now, and is long replaced by trigger and settle.
16 All udev tools are merged into a single binary called udevadm.
17 The old names of the tools are built-in commands in udevadm now.
18 Symlinks to udevadm, with the names of the old tools, provide
19 the same functionality as the standalone tools. There is also
20 only a single udevadm.8 man page left for all tools.
22 Tools like mkinitramfs should be checked, if they need to include
23 udevadm in the list of files.
33 The etc/udev/rules.d/ directory now contains a default set of basic
34 udev rules. This initial version is the result of a rules file merge
35 of Fedora and openSUSE. For these both distros only a few specific
36 rules are left in their own file, named after the distro. Rules which
37 are optionally installed, because they are only valid for a specific
38 architecture, or rules for subsystems which are not always used are
39 in etc/udev/packages/.
45 Dynamic rules can be created in /dev/.udev/rules.d/ to trigger
46 actions by dynamically created rules.
48 SYMLINK=="<value>" matches agains the entries in the list of
49 currently defined symlinks. The links are not created in the
50 filesystem at that point in time, but the values can be matched.
52 RUN{ignore_error}+="<program>" will ignore any exit code from the
53 program and not record as a failed event.
59 Final merge of patches/features from the Ubuntu package.
65 Control characters in filesystem label strings are no longer silenty
66 removed, but hex-encoded, to be able to uniquely identify the device
67 by its symlink in /dev/disk/by-label/.
68 If libvolume_id is used by mount(8), LABEL= will work as expected,
69 if slashes or other characters are used in the label string.
71 To test the existence of a file, TEST=="<file>" and TEST!="<file>"
72 can be specified now. The TEST key accepts an optional mode mask
73 TEST{0100}=="<is executable file>".
75 Scsi_id now supports a mode without expecting scsi-specific sysfs
76 entries to allow the extraction of cciss-device persistent properties.
82 In the future, we may see uuid's which are just simple character
83 strings (see the DDF Raid Specification). For that reason vol_id now
84 exports ID_FS_UUID_SAFE, just like ID_FS_LABEL_SAFE. For things like
85 the creation of symlinks, the *_SAFE values ensure, that no control
86 or whitespace characters are used in the filename.
88 Possible users of libvolume_id, please use the volume_id_get_* functions.
89 The public struct will go away in a future release of the library.
95 Removal of useless extras/eventrecorder.sh.
105 The directory multiplexer for dev.d/ and hotplug.d are finally removed
106 from the udev package.
112 Symlinks can have priorities now, the priority is assigned to the device
113 and specified with OPTIONS="link_priority=100". Devices with higher
114 priorities overwrite the symlinks of devices with lower priorities.
115 If the device that currently owns the link, goes away, the symlink
116 will be removed, and recreated, pointing to the next device with the
117 highest actual priority. This should make /dev/disk/by-{label,uuid,id}
118 more reliable, if multiple devices contain the same metadata and overwrite
121 The dasd_id program is removed from the udev tree, and dasdinfo, with the
122 needed rules, are part of the s390-tools now.
124 Please add KERNEL=="[0-9]*:[0-9]*" to the scsi wait-for-sysfs rule,
125 we may get the scsi sysfs mess fixed some day, and this will only catch
126 the devices we are looking for.
128 USB serial numbers for storage devices have the target:lun now appended,
129 to make it possibble to distinguish broken multi-lun devices with all
130 the same SCSI identifiers.
132 Note: The extra "run_directory" which searches and executes stuff in
133 /etc/hotplug.d/ and /etc/dev.d/ is long deprecated, and will be removed
134 with the next release. Make sure, that you don't use it anymore, or
135 provides your own implementation of that inefficient stuff.
136 We are tired of reports about a "slow udev", because these directories
137 contain stuff, that runs with _every_ event, instead of using rules,
138 that run programs only for the matching events.
148 DRIVER== will match only for devices that actually have a real
149 driver. DRIVERS== must be used, if parent devices should be
150 included in the match.
152 Libvolume_id's "linux_raid" detection needed another fix.
160 Add additional check to volume_id detection of via_raid, cause
161 some company decided to put a matching pattern all over the empty
162 storage area of their music players.
166 Fix path_id for SAS devices.
170 The udev daemon can be started with --debug-trace now, which will
171 execute all events serialized to get a chance to catch a possible
172 action that crashes the box.
174 A warning is logged, if PHYSDEV* keys, the "device" link, or a parent
175 device attribute like $attr{../file} is used, only WAIT_FOR_SYSFS rules
176 are excluded from the warning. Referencing parent attributes directly
177 may break when something in the kernel driver model changes. Udev will
178 just find the attribute by walking up the parent chain.
180 Udevtrigger now sorts the list of devices depending on the device
181 dependency, so a "usb" device is triggered after the parent "pci"
186 Revert persistent-storage ata-serial '_' '-' replacement.
192 Udevtrigger can now filter the list of devices to be triggered. Matches
193 for subsystems or sysfs attributes can be specified.
195 The entries in /dev/.udev/queue and /dev/.udev/failed have changed to
196 zero-sized files to avoid pointing to /sys and confuse broken tools which
197 scan the /dev directory. To retry failed events, udevtrigger --retry-failed
200 The rules and scripts to create udev rules for persistent network
201 devices and optical drives are in the extras/rules_generator directory
202 now. If you use something similar, please consider replacing your own
203 version with this, to share the support effort. The rule_generator
204 installs its own rules into /etc/udev/rules.d.
206 The cdrom_id tool installs its own rule now in /etc/udev/rules.d, cause
207 the rule_generator depends on cdrom_id to be called in an earlier rule.
213 Renaming of some key names (the old names still work):
214 BUS -> SUBSYSTEMS, ID -> KERNELS, SYSFS -> ATTRS, DRIVER -> DRIVERS.
215 (The behavior of the key DRIVER will change soon in one of the next
216 releases, to match only the event device, please switch to DRIVERS
217 instead. If DRIVER is used, it will behave like DRIVERS, but an error
219 With the new key names, we have a more consistent and simpler scheme.
220 We can match the properties of the event device only, with: KERNEL,
221 SUBSYSTEM, ATTR, DRIVER. Or include all the parent devices in the match,
222 with: KERNELS, SUBSYSTEMS, ATTRS, DRIVERS. ID, BUS, SYSFS, DRIVER are no
223 longer mentioned in the man page and should be switched in the rule
226 ATTR{file}="value" can be used now, to write to a sysfs file of the
227 event device. Instead of:
228 ..., SYSFS{type}=="0|7|14", RUN+="/bin/sh -c 'echo 60 > /sys$$DEVPATH/timeout'"
230 ..., ATTR{type}=="0|7|14", ATTR{timeout}="60"
232 All the PHYSDEV* keys are deprecated and will be removed from a
234 PHYDEVPATH - is the path of a parent device and should not be
236 PHYSDEVBUS - is just a SUBSYSTEM value of a parent, and can be
237 matched with SUBSYSTEMS==
238 PHYSDEVDRIVER - for bus devices it is available as ENV{DRIVER}.
239 Newer kernels will have DRIVER in the environment,
240 for older kernels udev puts in. Class device will
241 no longer carry this property of a parent and
242 DRIVERS== can be used to match such a parent value.
243 Note that ENV{DRIVER} is only available for a few bus devices, where
244 the driver is already bound at device event time. On coldplug, the
245 events for a lot devices are already bound to a driver, and they will have
246 that value set. But on hotplug, at the time the kernel creates the device,
247 it can't know what driver may claim the device after that, therefore
248 in most cases it will be empty.
250 Failed events should now be re-triggered with:
251 udevtrigger --retry-failed.
252 Please switch to this command, so we keep the details of the /dev/.udev/failed/
253 files private to the udev tools. We may need to switch the current symlink
254 target, cause some obviously broken tools try to scan all files in /dev
255 including /dev/.udev/, find the links to /sys and end up stat()'ing sysfs files
256 million times. This takes ages on slow boxes.
258 The udevinfo attribute walk (-a) now works with giving a device node
259 name (-n) instead of a devpath (-p). The query now always works, also when
260 no database file was created by udev.
262 The built-in /etc/passwd /etc/group parser is removed, we always depend on
263 getpwnam() and getgrnam() now. One of the next releases will depend on
264 fnmatch() and may use getopt_long().
268 Bugfixes and small improvements.
272 Fix path_id for recent kernels.
278 Added support for swapping network interface names, by temporarily
279 renaming the device and wait for the target name to become free.
283 The built-in MODALIAS key and substitution is removed.
287 The binary firmware helper is replaced by the usual simple
288 shell script. Udevsend is removed from the tree.
296 Some more keys require the correct use of '==' and '=' depending
297 on the kind of operation beeing an assignment or a match. Rules
298 with invalid operations are skipped and logged to syslog. Please
299 test with udevtest if the parsing of your rules throws errors and
300 fix possibly broken rules.
304 Provide "udevsettle" to wait for all current udev events to finish.
305 It also watches the current kernel netlink queue by comparing the
306 even sequence number to make sure that there are no current pending
307 events that have not already arrived in the daemon.
311 Fix rule to skip persistent rules for removable IDE devices, which
312 also skipped optical IDE drives.
314 All *_id program are installed in /lib/udev/ by default now.
316 No binary is stripped anymore as this should be done in the
317 packaging process and not at build time.
319 libvolume_id is provided as a shared library now and vol_id is
320 linked against it. Also one of the next HAL versions will require
321 this library, and the HAL build process will also require the
322 header file to be installed. The copy of the same code in HAL will
323 be removed to have only a single copy left on the system.
327 Add persistent links for SCSI tapes. The rules file is renamed
328 to 60-persistent-storage.rules.
330 Create persistent path for usb devices. Can be used for all sorts
331 of devices that can't be distinguished by other properties like
332 multiple identical keyboards and mice connected to the same box.
334 Provide "udevtrigger" program to request events on coldplug. The
335 shell script is much too slow with thousends of devices.
339 Fix persistent disk rules to exclude removable IDE drives.
341 Warn if %e, $modalias or MODALIAS is used.
345 Fix queue export, which wasn't correct for subsequent add/remove
346 events for the same device.
350 Fix cramfs detection on big endian.
352 Make WAIT_FOR_SYSFS usable in "normal" rules and silent if the whole
357 If BUS== and SYSFS{}== have been used in the same rule, the sysfs
358 attributes were only checked at the parent device that matched the
359 by BUS requested subsystem. Fix it to also look at the device we
360 received the event for.
362 Build variable CROSS has changed to CROSS_COMPILE to match the kernel
367 Fix a bug where NAME="" would prevent RUN from beeing executed.
369 RUN="/bin/program" does not longer automatically add the subsystem
370 as the first parameter. This is from the days of /sbin/hotplug
371 which is dead now and it's just confusing to need to add a space at
372 the end of the program name to prevent this.
373 If you use rules that need the subsystem as the first parameter,
374 like the old "udev_run_hotlugd" and "udev_run_devd", add the subsystem
375 to the key like RUN+="/bin/program $env{SUBSYSTEM}".
379 The udev man page has moved to udev(7) as it does not describe a command
380 anymore. The programs udev, udevstart and udevsend are no longer installed
381 by default and must be copied manually, if they should be installed or
382 included in a package.
384 Fix a bug where "ignore_device" could run earlier collected RUN keys before
385 the ignore rule was applied.
387 More preparation for future sysfs changes. usb_id and scsi_id no longer
388 depend on a magic order of devices in the /devices chain. Specific devices
389 should be requested by their subsytem.
391 This will always find the scsi parent device without depending on a specific
393 dev = sysfs_device_get(devpath);
394 dev_usb = sysfs_device_get_parent_with_subsystem(dev, "scsi");
396 The "device" link in the current sysfs layout will be automatically
397 _resolved_ as a parent and in the new sysfs layout it will just _be_ the
398 parent in the devpath. If a device is requested by it's symlink, like all
399 class devices in the new sysfs layout will look like, it gets automatically
400 resolved and substituted with the real devpath and not the symlink path.
403 A similar logic must be applied to _all_ sysfs users, including
404 scripts, that search along parent devices in sysfs. The explicit use of
405 the "device" link must be avoided. With the future sysfs layout all
406 DEVPATH's will start with /devices/ and have a "subsystem" symlink poiting
407 back to the "class" or the "bus". The layout of the parent devices in
408 /devices is not necessarily expected to be stable across kernel releases and
409 searching for parents by their subsystem should make sysfs users tolerant
410 for changed parent chains.
414 Prepare udev to work with the experimental kernel patch, that moves
415 /sys/class devices to /sys/devices and /sys/block to /sys/class/block.
417 Clarify BUS, ID, $id usage and fix $id behavior. This prepares for
418 moving the class devices to /sys/devices.
420 Thanks again to Marco for help finding a hopefully nice compromise
421 to make %b simpler and working again.
425 Complete removal of libsysfs, replaced by simple helper functions
426 which are much simpler and a bit faster. The udev daemon operatesentirely
427 on event parameters and does not use sysfs for simple rules anymore.
428 Please report any new bugs/problems, that may be caused by this big
429 change. They will be fixed immediately.
431 The enumeration format character '%e' is deprecated and will be
432 removed sometimes from a future udev version. It never worked correctly
433 outside of udevstart, so we can't use it with the new parallel
434 coldplug. A simple enumeration is as useless as the devfs naming
435 scheme, just get rid of both if you still use it.
437 MODALIAS and $modalias is not needed and will be removed from one of
438 the next udev versions, replace it in all rules with ENV{MODALIAS} or
439 the sysfs "modalias" value.
441 Thanks a lot to Marco for all his help on finding and fixing bugs.
445 Let scsi_id request libata drive serial numbers from page 0x80.
447 Renamed etc/udev/persistent.rules to persistent-disk.rules and
448 added /dev/disk/by-name/* for device mapper device names.
450 Removed %e from the man page. It never worked reliably outside
451 of udevstart and udevstart is no longer recommended to use.
455 Symlinks are now exported to the event environment. Hopefully it's no
456 longer needed to run udevinfo from an event process, like it was
457 mentioned on the hotplug list:
458 UDEV [1134776873.702967] add@/block/sdb
461 DEVLINKS=/dev/disk/by-id/usb-IBM_Memory_Key_0218B301030027E8 /dev/disk/by-path/usb-0218B301030027E8:0:0:0
465 Fix a problem if udevsend is used as the hotplug handler and tries to use
466 syslog, which causes a "vc" event loop. 2.6.15 will make udevsend obsolete
467 and this kind of problems will hopefully go away soon.
471 All built-in logic to work around bad sysfs timing is removed with this
472 version. The need to wait for sysfs files is almost fixed with a kernel
473 version that doesn't work with this udev version anyway. Until we fix
474 the timing of the "bus" link creation, the former integrated logic should
475 be emulated by a rule placed before all other rules:
476 ACTION=="add", DEVPATH=="/devices/*", ENV{PHYSDEVBUS}=="?*", WAIT_FOR_SYSFS="bus"
478 The option "udev_db" does no longer exist. All udev state will be in
479 /$udev_root/.udev/ now, there is no longer an option to set this
481 If the init script or something else used this value, just depend on
482 this hardcoded path. But remember _all_content_ of this directory is
483 still private to udev and can change at any time.
485 Default location for rule sripts and helper programs is now: /lib/udev/.
486 Everything that is not useful on the commandline should go into this
487 directory. Some of the helpers in the extras folder are installed there
488 now. The rules need to be changed, to find the helpers there.
490 Also /lib/udev/devices is recommended as a directory where packages or
491 the user can place real device nodes, which get copied over to /dev at
492 every boot. This should replace the various solutions with custom config
495 Udevsend does no longer start the udev daemon. This must be done with
496 the init script that prepares /dev on tmpfs and creates the initial nodes,
497 before starting the daemon.
501 Silent a too verbose error logging for the old hotplug.d/ dev.d/
504 The copy of klibc is removed. A systemwide installed version of klibc
505 should be used to build a klibc udev now.
509 NAME="" will not create any nodes, but execute RUN keys. To completely
510 ignore an event the OPTION "ignore_device" should be used.
512 After removal of the reorder queue, events with a TIMEOUT can be executed
513 without any queuing now.
517 Fixed bug in udevd, if inotify is not available. We depend on netlink
518 uevents now, kernels without that event source will not work with that
519 version of udev anymore.
523 The rule parsing happens now in the daemon once at startup, all udev
524 event processes inherit the already parsed rules from the daemon.
525 It is shipped with SUSE10.0 and reduces heavily the system load at
526 startup. The option to save precompiled rules and let the udev process
527 pick the them up is removed, as it's no longer needed.
529 Kernel 2.6.15 will have symlinks at /class/input pointing to the real
530 device. Libsysfs is changed to "translate" the requested link into the
531 real device path, as it would happen with the hotplug event. Otherwise
532 device removal and the udev database will not work.
534 Using 'make STRIPCMD=' will leave the binaries unstripped for debugging
537 A few improvements for vol_id, the filesytem probing code.
541 Fix a stupid typo in extras/run_directory for "make install".
543 scsi_id creates the temporary devnode now in /dev for usage with a
544 non-writable /tmp directory.
546 The uevent kernel socket buffer can carry app. 50.000 events now,
547 let's see who can break this again. :)
549 The upcoming kernel will have a new input driver core integration.
550 Some class devices are now symlinks to the real device. libsysfs
551 needs a fix for this to work correctly. Udevstart of older udev
552 versions will _not_ create these devices!
556 Fix a 'install' target in the Makefile, that prevents EXTRAS from
561 A bunch of mostly trivial bugfixes. From now on no node name or
562 symlink name can contain any character than plain whitelisted ascii
563 characters or validated utf8 byte-streams. This is needed for the
564 /dev/disk/by-label/* links, because we import untrusted data and
565 export it to the filesystem.
569 More bugfixes. If udevd was started from the kernel, we don't
570 have stdin/stdout/stderr, which broke the forked tools in some
575 Bugfix. udevstart event ordering was broken for a long time.
576 The new run_program() uncovered it, because /dev/null was not
577 available while we try to run external programs.
578 Now udevstart should create it before we run anything.
582 Minor bugfixes and some distro rules updates. If you don't have the
583 persistent disk rules in /dev/disk/by-*/* on your distro, just
584 grab it from here. :)
588 We can use socket communication now to pass events from udev to
590 RUN+="socket:/org/freedesktop/hal/udev_event"
591 will pass the whole udev event to the HAL daemon without the need
592 for a forked helper. (See ChangeLog for udevmonitor, as an example)
596 Mostly bugfixes and see ChangeLog.
598 The test for the existence of an environment value should be
600 ENV{KEY}=="*" to ENV{KEY}=="?*"
601 because "*" will not fail anymore, if the key does not exist or
606 Bugfixes and a few tweaks described in the ChangeLog.
610 Mostly a Bugfix release.
612 Added WAIT_FOR_SYSFS="<attribute>" to be able to fight against the sysfs
613 timing with custom rules.
617 We changed the internal rule storage format. Our large rule files took
618 2 MB of RAM, with the change we are down to 99kB.
620 If the device-node has been created with default name and no symlink or
621 options are to remenber, it is not longer stored in the udevdb. HAL will
622 need to be updated to work correctly with that change.
624 To overrride optimization flags, OPTFLAGS may be used now.
632 Major changes happened with this release. The goal is to take over the
633 complete kernel-event handling and provide a more efficient way to dispatch
634 kernel events. Replacing most of the current shell script logic and the
635 kernel forked helper with a netlink-daemon and a rule-based event handling.
637 o udevd listens to netlink events now. The first valid netlink event
638 will make udevd ignore any message from udevsend that contains a
639 SEQNUM, to avoid duplicate events. The forked events can be disabled
641 echo "" > /proc/sys/kernel/hotplug
642 For full support, the broken input-subsytem needs to be fixed, not to
643 bypass the driver core.
645 o /etc/dev.d/ + /etc/hotplug.d/ directory multiplexing is completely
646 removed from udev itself and must be emulated by calling small
647 helper binaries provided in the extras folder:
648 make EXTRAS=extras/run_directory/
649 will build udev_run_devd and udev_run_hotplugd, which can be called
650 from a rule if needed:
651 RUN+="/sbin/udev_run_hotplugd"
652 The recommended way to handle this is to convert all the calls from
653 the directories to explicit udev rules and get completely rid of the
654 multiplexing. (To catch a ttyUSB event, you now no longer need to
655 fork and exit 300 tty script instances you are not interested in, it
656 is just one rule that matches exactly the device.)
658 o udev handles now _all_ events not just events for class and block
659 devices, this way it is possible to control the complete event
660 behavior with udev rules. Especially useful for rules like:
661 ACTION="add", DEVPATH="/devices/*", MODALIAS=="?*", RUN+="/sbin/modprobe $modalias"
663 o As used in the modalias rule, udev supports now textual
664 substitution placeholder along with the usual format chars. This
665 needs to be documented, for now it's only visible in udev_rules_parse.c.
667 o The rule keys support now more operations. This is documented in the
668 man page. It is possible to add values to list-keys like the SYMLINK
669 and RUN list with KEY+="value" and to clear the list by assigning KEY="".
670 Also "final"-assignments are supported by using KEY:="value", which will
671 prevent changing the key by any later rule.
673 o kernel 2.6.12 has the "detached_state" attribute removed from
674 sysfs, which was used to recognize sysfs population. We switched that
675 to wait for the "bus" link, which is only available in kernels after 2.6.11.
676 Running this udev version on older kernels may cause a short delay for
679 o To provide infrastructure for persistent device naming, the id programs:
680 scsi_id, vol_id (former udev_volume_id), and ata_id (new) are able now
681 to export the probed data in environment key format:
682 pim:~ # /sbin/ata_id --export /dev/hda
683 ID_MODEL=HTS726060M9AT00
684 ID_SERIAL=MRH401M4G6UM9B
688 KERNEL="hd*[!0-9]", IMPORT="/sbin/ata_id --export $tempnode"
689 KERNEL="hd*[!0-9]", ENV{ID_SERIAL}=="?*", SYMLINK+="disk/by-id/$env{ID_MODEL}_$env{ID_SERIAL}"
692 kay@pim:~> tree /dev/disk
695 | |-- HTS726060M9AT00_MRH401M4G6UM9B -> ../../hda
696 | `-- IBM-Memory_Key -> ../../sda
698 | |-- swap -> ../../hda1
699 | |-- date -> ../../sda1
700 | `-- home -> ../../hda3
702 |-- 2E08712B0870F2E7 -> ../../hda3
703 |-- 9352cfef-7687-47bc-a2a3-34cf136f72e1 -> ../../hda1
704 |-- E845-7A89 -> ../../sda1
705 `-- b2a61681-3812-4f13-a4ff-920d70604299 -> ../../hda2
707 The IMPORT= operation will import these keys in the environment and make
708 it available for later PROGRAM= and RUN= executed programs. The keys are
709 also stored in the udevdb and can be queried from there with one of the
712 o A few binaries are silently added to the repository, which can be used
713 to replay kernel events from initramfs instead of using coldplug. udevd
714 can be instructed now to queue-up events while the stored events from
715 initramfs are filled into the udevd-queue. This code is still under
716 development and there is no documentation now besides the code itself.
717 The additional binaries get compiled, but are not installed by default.
719 o There is also a temporary fix for a performance problem where too many
720 events happen in parallel and every event needs to parse the rules.
721 udev can now read precompiled rules stored on disk. This is likely to be
722 replaced by a more elegant solution in a future udev version.
726 With kernel version 2.6.12, the sysfs file "detached_state" was removed.
727 Fix for libsysfs not to expect this file was added.
731 All rules are applied now, but only the first matching rule with a NAME-key
732 will be applied. All later rules with NAME-key are completely ignored. This
733 way system supplied symlinks or permissions gets applied to user-defined
737 Please check your rules setup, if you may need to add OPTIONS="last_rule"
738 to some rules, to keep the old behavior.
740 The rules are read on "remove"-events too. That makes is possible to match
741 with keys that are available on remove (KERNEL, SUBSYSTEM, ID, ENV, ...) to
742 instruct udev to ignore an event (OPTIONS="ignore_device").
743 The new ACTION-key may be used to let a rule act only at a "remove"-event.
745 The new RUN-key supports rule-based execution of programs after device-node
746 handling. This is meant as a general replacement for the dev.d/-directories
747 to give fine grained control over the execution of programs.
749 The %s{}-sysfs format char replacement values are searched at any of the
750 devices in the device chain now, not only at the class-device.
752 We support log priority levels now. The value udev_log in udev.conf is used
753 to determine what is printed to syslog. This makes it possible to
754 run a version with compiled-in debug messages in a production environment
755 which is sometimes needed to find a bug.
756 It is still possible to supress the inclusion of _any_ syslog usage with
757 USE_LOG=false to create the smallest possible binaries if needed.
758 The configured udev_log value can be overridden with the environment variable
763 Possible use of a system-wide klibc:
764 make USE_KLIBC=true KLCC=/usr/bin/klcc all
765 will link against an external klibc and our own version will be ignored.
769 We support an unlimited count of symlinks now.
771 If USE_STATIC=true is passed to a glibc build, we link statically and use
772 a built-in userdb parser to resolve user and group names.
774 The PLACE= key is gone. It can be replaced by an ID= for a long time, because
775 we walk up the chain of physical devices to find a match.
777 The KEY="<value>" format supports '=', '==', '!=,' , '+=' now. This makes it
778 easy to skip certain attribute matches without composing rules with weird
779 character class negations like:
780 KERNEL="[!s][!c][!d]*"
781 this can now be replaced with:
783 The current simple '=' is still supported, and should work as it does today,
784 but existing rules should be converted if possible, to be better readable.
786 We have new ENV{}== key now, to match against a maximum of 5 environment
789 udevstart is its own binary again, because we don't need co carry this araound
790 with every forked event.