mirror of
https://github.com/AuxXxilium/eudev.git
synced 2024-12-18 04:27:44 +07:00
443 lines
18 KiB
Plaintext
443 lines
18 KiB
Plaintext
systemd System and Service Manager
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CHANGES WITH 183:
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* udev: all udev sources are merged into the systemd source tree now.
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All future udev development will happen in the systemd tree. It
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is still fully supported to use the udev daemon and tools without
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systemd running, like in initramfs or other init systems. Building
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udev though, will require the *build* of the systemd tree, but
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udev can be properly *run* without systemd.
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* udev: /lib/udev/devices/ are not read anymore; systemd-tmpfiles
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should be used to create dead device nodes as workarounds for broken
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subsystems.
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* udev: RUN+="socket:..." and udev_monitor_new_from_socket() is
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no longer supported. udev_monitor_new_from_netlink() needs to be
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used to subscribe to events.
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* udev: when udevd is started by systemd, processes which are left
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behind by forking them off of udev rules, are unconditionally cleaned
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up and killed now after the event handling has finished. Services or
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daemons must be started as systemd services. Services can be
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pulled-in by udev to get started, but they can no longer be directly
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forked by udev rules.
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* udev: the daemon binary is called systemd-udevd now and installed
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in /usr/lib/systemd/. Standalone builds or non-systemd systems need
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to adapt to that, create symlink, or rename the binary after building
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it.
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* libudev no longer provides these symbols:
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udev_monitor_from_socket()
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udev_queue_get_failed_list_entry()
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udev_get_{dev,sys,run}_path()
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The versions number was bumped and symbol versioning introduced.
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* systemd-loginctl and systemd-journalctl have been renamed
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to logingctl and journalctl to match systemctl.
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* The config files: /etc/systemd/systemd-logind.conf and
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/etc/systemd/systemd-journald.conf have been renamed to
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logind.conf and journald.conf. Package updates should rename
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the files to the new names on upgrade.
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* For almost all files the license is now LGPL2.1+, changed
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from the previous GPL2.0+. Exceptions are some minor stuff
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of udev (which will be changed to LGPL2.1 eventually, too),
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and the MIT licensed sd-daemon.[ch] library that is suitable
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to be used as drop-in files.
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* systemd and logind now handle system sleep states, in
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particulary suspending and hibernating.
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* logind now implements a sleep/shutdown/idle inhibiting logic
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suitable for a variety of uses. Soonishly Lennart will blog
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about this in more detail.
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* var-run.mount and var-lock.mount are no longer provided
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(which prevously bind mounted these directories to their new
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places). Distributions which have not converted these
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directories to symlinks should consider stealing these files
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from git history and add them downstream.
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* We introduced the Documentation= field for units and added
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this to all our shipped units. This is useful to make it
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easier to explore that boot and the purpose of the various
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units.
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* All smaller setup units (such as
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systemd-vconsole-setup.service) now detect properly if they
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are run in a container and are skipped when
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appropriate. This guarantees an entirely noise-free boot in
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Linux container environments such as systemd-nspawn.
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* A framework for implementing offline system updates is now
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integrated, for details see:
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http://freedesktop.org/wiki/Software/systemd/SystemUpdates
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* A new service type Type=idle is available now which helps us
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avoiding ugly interleaving of getty output and boot status
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messages.
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* There's now a system-wide CapabalityBoundingSet= option to
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globally reduce the set of capabailities for the
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system. This is useful to drop CAP_SYS_MKNOD, CAP_SYS_RAWIO,
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CAP_NET_RAW, CAP_SYS_MODULE, CAP_SYS_TIME, CAP_SYS_PTRACE or
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even CAP_NET_ADMIN system-wide for secure systems.
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* There are now system-wide DefaultLimitXXX= options to
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globally change the defaults of the various resource limits
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for all units started by PID 1.
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* Harald Hoyer's systemd test suite has been integrated into
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systemd which allows easy testing of systemd builds in qemu
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and nspawn. (This is really awesome! Ask us for details!)
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* The fstab parser is now implemented as generator not inside
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of PID 1.
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* systemctl will now warn you if .mount units generated from
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/etc/fstab are out of date due to changes in fstab that
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haven't been read by systemd yet.
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* systemd is now suitable for usage in initrds. Dracut has
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already been updated to make use of this. With this in place
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initrds get a slight bit faster but primarily are much
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easier to introspect and debug since "systemctl status" in
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the host system can be used to introspect initrd services,
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and the journal from the initrd is kept around too.
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* systemd-delta has been added, a tool to explore differences
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between user/admin configuration and vendor defaults.
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* PrivateTmp= now affects both /tmp and /var/tmp.
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* Boot time status messages are now much prettier and feature
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proper english language. Booting up systemd has never been
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so sexy.
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* Read-ahead pack files now include the inode number of all
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files to pre-cache. When the inode changes the pre-caching
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is not attempted. This should be nicer to deal with updated
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packages which might result in changes of read-ahead
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patterns.
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* We now temporaritly lower the kernel's read_ahead_kb variable
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when collecting read-ahead data to ensure the kernel's
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built-in read-ahead does not add noise to our measurements
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of necessary blocks to pre-cache.
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* There's now RequiresMountsFor= to add automatic dependencies
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for all mounts necessary for a specific file system path.
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* MountAuto= and SwapAuto= have been removed from
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system.conf. Mounting file systems at boot has to take place
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in systemd now.
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* nspawn now learned a new switch --uuid= to set the machine
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ID on the command line.
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* nspawn now loearned the -b switch to automatically search
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for an init system.
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* vt102 is now the default TERM for serial TTYs, upgraded from
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vt100.
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* systemd-logind now works on VT-less systems.
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* The build tree has been reorganized. The individual
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componets now have directories of their own.
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* A new condition type ConditionPathIsReadWrite= is now available.
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* nspawn learned the new -C switch to create cgroups for the
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container in other hierarchies.
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* We now have support for hardware watchdogs, configurable in
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system.conf.
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* The scheduled shutdown logic now has a public API.
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* We now mount /tmp as tmpfs by default, but this can be
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masked and /etc/fstab can override it.
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* Since udisks doesn't make use of /media anymore we are not
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mounting a tmpfs on it anymore.
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* journalctl gained a new --local switch to only interleave
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locally generated journal files.
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* We can now load the IMA policy at boot automatically.
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* The GTK tools have been split off into a systemd-ui.
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CHANGES WITH 44:
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* This is mostly a bugfix release
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* Support optional initialization of the machine ID from the
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KVM or container configured UUID.
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* Support immediate reboots with "systemctl reboot -ff"
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* Show /etc/os-release data in systemd-analyze output
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* Many bugfixes for the journal, including endianess fixes and
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ensuring that disk space enforcement works
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* sd-login.h is C++ comptaible again
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* Extend the /etc/os-release format on request of the Debian
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folks
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* We now refuse non-UTF8 strings used in various configuration
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and unit files. This is done to ensure we don't pass invalid
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data over D-Bus or expose it elsewhere.
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* Register Mimo USB Screens as suitable for automatic seat
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configuration
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* Read SELinux client context from journal clients in a race
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free fashion
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* Reorder configuration file lookup order. /etc now always
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overrides /run in order to allow the administrator to always
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and unconditionally override vendor supplied or
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automatically generated data.
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* The various user visible bits of the journal now have man
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pages. We still lack man pages for the journal API calls
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however.
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* We now ship all man pages in HTML format again in the
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tarball.
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Contributions from: Dave Reisner, Dirk Eibach, Frederic
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Crozat, Harald Hoyer, Kay Sievers, Lennart Poettering, Marti
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Raudsepp, Michal Schmidt, Shawn Landden, Tero Roponen, Thierry
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Reding
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CHANGES WITH 43:
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* This is mostly a bugfix release
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* systems lacking /etc/os-release are no longer supported.
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* Various functionality updates to libsystemd-login.so
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* Track class of PAM logins to distuingish greeters from
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normal user logins.
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Contributions from: Kay Sievers, Lennart Poettering, Michael
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Biebl
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CHANGES WITH 42:
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* This is an important bugfix release for v41.
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* Building man pages is now optional which should be useful
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for those building systemd from git but unwilling to install
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xsltproc.
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* Watchdog support for supervising services is now usable. In
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a future release support for hardware watchdogs
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(i.e. /dev/watchdog) will be added building on this.
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* Service start rate limiting is now configurable and can be
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turned off per service. When a start rate limit is hit a
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reboot can automatically be triggered.
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* New CanReboot(), CanPowerOff() bus calls in systemd-logind.
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Contributions from: Benjamin Franzke, Bill Nottingham,
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Frederic Crozat, Lennart Poettering, Michael Olbrich, Michal
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Schmidt, Michał Górny, Piotr Drąg
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CHANGES WITH 41:
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* The systemd binary is installed /usr/lib/systemd/systemd now;
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An existing /sbin/init symlink needs to be adapted with the
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package update.
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* The code that loads kernel modules has been ported to invoke
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libkmod directly, instead of modprobe. This means we do not
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support systems with module-init-tools anymore.
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* Watchdog support is now already useful, but still not
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complete.
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* A new kernel command line option systemd.setenv= is
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understood to set system wide environment variables
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dynamically at boot.
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* We now limit the set of capabilities of systemd-journald.
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* We now set SIGPIPE to ignore by default, since it only is
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useful in shell pipelines, and has little use in general
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code. This can be disabled with IgnoreSIPIPE=no in unit
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files.
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Contributions from: Benjamin Franzke, Kay Sievers, Lennart
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Poettering, Michael Olbrich, Michal Schmidt, Tom Gundersen,
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William Douglas
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CHANGES WITH 40:
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* This is mostly a bugfix release
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* We now expose the reason why a service failed in the
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"Result" D-Bus property.
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* Rudimentary service watchdog support (will be completed over
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the next few releases.)
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* When systemd forks off in order execute some service we will
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now immediately changes its argv[0] to reflect which process
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it will execute. This is useful to minimize the time window
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with a generic argv[0], which makes bootcharts more useful
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Contributions from: Alvaro Soliverez, Chris Paulson-Ellis, Kay
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Sievers, Lennart Poettering, Michael Olbrich, Michal Schmidt,
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Mike Kazantsev, Ray Strode
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CHANGES WITH 39:
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* This is mostly a test release, but incorporates many
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bugfixes.
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* New systemd-cgtop tool to show control groups by their
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resource usage.
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* Linking against libacl for ACLs is optional again. If
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disabled, support tracking device access for active logins
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goes becomes unavailable, and so does access to the user
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journals by the respective users.
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* If a group "adm" exists, journal files are automatically
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owned by them, thus allow members of this group full access
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to the system journal as well as all user journals.
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* The journal now stores the SELinux context of the logging
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client for all entries.
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* Add C++ inclusion guards to all public headers
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* New output mode "cat" in the journal to print only text
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messages, without any meta data like date or time.
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* Include tiny X server wrapper as a temporary stop-gap to
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teach XOrg udev display enumeration. This is used by display
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managers such as gdm, and will go away as soon as XOrg
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learned native udev hotplugging for display devices.
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* Add new systemd-cat tool for executing arbitrary programs
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with STDERR/STDOUT connected to the journal. Can also act as
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BSD logger replacement, and does so by default.
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* Optionally store all locally generated coredumps in the
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journal along with meta data.
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* systemd-tmpfiles learnt four new commands: n, L, c, b, for
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writing short strings to files (for usage for /sys), and for
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creating symlinks, character and block device nodes.
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* New unit file option ControlGroupPersistent= to make cgroups
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persistent, following the mechanisms outlined in
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http://www.freedesktop.org/wiki/Software/systemd/PaxControlGroups
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* Support multiple local RTCs in a sane way
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* No longer monopolize IO when replaying readahead data on
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rotating disks, since we might starve non-file-system IO to
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death, since fanotify() will not see accesses done by blkid,
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or fsck.
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* Don't show kernel threads in systemd-cgls anymore, unless
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requested with new -k switch.
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Contributions from: Dan Horák, Kay Sievers, Lennart
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Poettering, Michal Schmidt
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CHANGES WITH 38:
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* This is mostly a test release, but incorporates many
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bugfixes.
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* The git repository moved to:
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git://anongit.freedesktop.org/systemd/systemd
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ssh://git.freedesktop.org/git/systemd/systemd
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* First release with the journal
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http://0pointer.de/blog/projects/the-journal.html
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* The journal replaces both systemd-kmsg-syslogd and
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systemd-stdout-bridge.
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* New sd_pid_get_unit() API call in libsystemd-logind
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* Many systemadm clean-ups
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* Introduce remote-fs-pre.target which is ordered before all
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remote mounts and may be used to start services before all
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remote mounts.
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* Added Mageia support
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* Add bash completion for systemd-loginctl
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* Actively monitor PID file creation for daemons which exit in
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the parent process before having finished writing the PID
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file in the daemon process. Daemons which do this need to be
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fixed (i.e. PID file creation must have finished before the
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parent exits), but we now react a bit more gracefully to them.
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* Add colourful boot output, mimicking the well-known output
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of existing distributions.
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* New option PassCredentials= for socket units, for
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compatibility with a recent kernel ABI breakage.
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* /etc/rc.local is now hooked in via a generator binary, and
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thus will no longer act as synchronization point during
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boot.
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* systemctl list-unit-files now supports --root=.
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* systemd-tmpfiles now understands two new commands: z, Z for
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relabelling files according to the SELinux database. This is
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useful to apply SELinux labels to specific files in /sys,
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among other things.
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* Output of SysV services is now forwarded to both the console
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and the journal by default, not only just the console.
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* New man pages for all APIs from libsystemd-login.
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* The build tree got reorganized and a the build system is a
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lot more modular allowing embedded setups to specifically
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select the components of systemd they are interested in.
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* Support for Linux systems lacking the kernel VT subsystem is
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restored.
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* configure's --with-rootdir= got renamed to
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--with-rootprefix= to follow the naming used by udev and
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kmod
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* Unless specified otherwise we'll now install to /usr instead
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of /usr/local by default.
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* Processes with '@' in argv[0][0] are now excluded from the
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final shut-down killing spree, following the logic explained
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in:
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http://www.freedesktop.org/wiki/Software/systemd/RootStorageDaemons
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* All processes remaining in a service cgroup when we enter
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the START or START_PRE states are now killed with
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SIGKILL. That means it is no longer possible to spawn
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background processes from ExecStart= lines (which was never
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supported anyway, and bad style).
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* New PropagateReloadTo=/PropagateReloadFrom= options to bind
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reloading of units together.
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Contributions from: Bill Nottingham, Daniel Walsh, Dave
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Reisner, Dexter Morgan, Gregs Gregs, Jonathan Nieder, Kay
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Sievers, Lennart Poettering, Michael Biebl, Michal Schmidt,
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Michał Górny, Ran Benita, Thomas Jarosch, Tim Waugh, Tollef
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Fog Heen, Tom Gundersen, Zbigniew Jędrzejewski-Szmek
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