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systemd System and Service Manager
CHANGES WITH 41:
* The systemd binary is installed /usr/lib/systemd/systemd now;
An existing /sbin/init symlink needs to be adapted with the
package update.
* The code that loads kernel modules has been ported to invoke
libkmod directly, instead of modprobe. This means we do not
support systems with module-init-tools anymore.
* Watchdog support is now already useful, but still not
complete.
* A new kernel command line option systemd.setenv= is
understood to set system wide environment variables
dynamically at boot.
* We now limit the set of capabilities of systemd-journald.
Contributions from: Benjamin Franzke, Kay Sievers, Lennart
Poettering, Michael Olbrich, Michal Schmidt, Tom Gundersen,
William Douglas
CHANGES WITH 40:
* This is mostly a bugfix release
* We now expose the reason why a service failed in the
"Result" D-Bus property.
* Rudimentary service watchdog support (will be completed over
the next few releases.)
* When systemd forks off in order execute some service we will
now immediately changes its argv[0] to reflect which process
it will execute. This is useful to minimize the time window
with a generic argv[0], which makes bootcharts more useful
Contributions from: Alvaro Soliverez, Chris Paulson-Ellis, Kay
Sievers, Lennart Poettering, Michael Olbrich, Michal Schmidt,
Mike Kazantsev, Ray Strode
CHANGES WITH 39:
* This is mostly a test release, but incorporates many
bugfixes.
* New systemd-cgtop tool to show control groups by their
resource usage.
* Linking against libacl for ACLs is optional again. If
disabled, support tracking device access for active logins
goes becomes unavailable, and so does access to the user
journals by the respective users.
* If a group "adm" exists, journal files are automatically
owned by them, thus allow members of this group full access
to the system journal as well as all user journals.
* The journal now stores the SELinux context of the logging
client for all entries.
* Add C++ inclusion guards to all public headers
* New output mode "cat" in the journal to print only text
messages, without any meta data like date or time.
* Include tiny X server wrapper as a temporary stop-gap to
teach XOrg udev display enumeration. This is used by display
managers such as gdm, and will go away as soon as XOrg
learned native udev hotplugging for display devices.
* Add new systemd-cat tool for executing arbitrary programs
with STDERR/STDOUT connected to the journal. Can also act as
BSD logger replacement, and does so by default.
* Optionally store all locally generated coredumps in the
journal along with meta data.
* systemd-tmpfiles learnt four new commands: n, L, c, b, for
writing short strings to files (for usage for /sys), and for
creating symlinks, character and block device nodes.
* New unit file option ControlGroupPersistent= to make cgroups
persistent, following the mechanisms outlined in
http://www.freedesktop.org/wiki/Software/systemd/PaxControlGroups
* Support multiple local RTCs in a sane way
* No longer monopolize IO when replaying readahead data on
rotating disks, since we might starve non-file-system IO to
death, since fanotify() will not see accesses done by blkid,
or fsck.
* Don't show kernel threads in systemd-cgls anymore, unless
requested with new -k switch.
Contributions from: Dan Horák, Kay Sievers, Lennart
Poettering, Michal Schmidt
CHANGES WITH 38:
* This is mostly a test release, but incorporates many
bugfixes.
* The git repository moved to:
git://anongit.freedesktop.org/systemd/systemd
ssh://git.freedesktop.org/git/systemd/systemd
* First release with the journal
http://0pointer.de/blog/projects/the-journal.html
* The journal replaces both systemd-kmsg-syslogd and
systemd-stdout-bridge.
* New sd_pid_get_unit() API call in libsystemd-logind
* Many systemadm clean-ups
* Introduce remote-fs-pre.target which is ordered before all
remote mounts and may be used to start services before all
remote mounts.
* Added Mageia support
* Add bash completion for systemd-loginctl
* Actively monitor PID file creation for daemons which exit in
the parent process before having finished writing the PID
file in the daemon process. Daemons which do this need to be
fixed (i.e. PID file creation must have finished before the
parent exits), but we now react a bit more gracefully to them.
* Add colourful boot output, mimicking the well-known output
of existing distributions.
* New option PassCredentials= for socket units, for
compatibility with a recent kernel ABI breakage.
* /etc/rc.local is now hooked in via a generator binary, and
thus will no longer act as synchronization point during
boot.
* systemctl list-unit-files now supports --root=.
* systemd-tmpfiles now understands two new commands: z, Z for
relabelling files according to the SELinux database. This is
useful to apply SELinux labels to specific files in /sys,
among other things.
* Output of SysV services is now forwarded to both the console
and the journal by default, not only just the console.
* New man pages for all APIs from libsystemd-login.
* The build tree got reorganized and a the build system is a
lot more modular allowing embedded setups to specifically
select the components of systemd they are interested in.
* Support for Linux systems lacking the kernel VT subsystem is
restored.
* configure's --with-rootdir= got renamed to
--with-rootprefix= to follow the naming used by udev and
kmod
* Unless specified otherwise we'll now install to /usr instead
of /usr/local by default.
* Processes with '@' in argv[0][0] are now excluded from the
final shut-down killing spree, following the logic explained
in:
http://www.freedesktop.org/wiki/Software/systemd/RootStorageDaemons
* All processes remaining in a service cgroup when we enter
the START or START_PRE states are now killed with
SIGKILL. That means it is no longer possible to spawn
background processes from ExecStart= lines (which was never
supported anyway, and bad style).
* New PropagateReloadTo=/PropagateReloadFrom= options to bind
reloading of units together.
Contributions from: Bill Nottingham, Daniel Walsh, Dave
Reisner, Dexter Morgan, Gregs Gregs, Jonathan Nieder, Kay
Sievers, Lennart Poettering, Michael Biebl, Michal Schmidt,
Michał Górny, Ran Benita, Thomas Jarosch, Tim Waugh, Tollef
Fog Heen, Tom Gundersen, Zbigniew Jędrzejewski-Szmek
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