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Preparation for allowing systemd to run gracefully in containers lacking
CAP_SYS_ADMIN.
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The unit file only active the machine-id-commit helper if /etc is mounted
writable and /etc/machine-id is an independant mount point (should be a tmpfs).
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to load from that
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--link-journal={host,guest} fail if the host does not have persistent
journalling enabled and /var/log/journal/ does not exist. Even worse, as there
is no stdout/err any more, there is no error message to point that out.
Introduce two new modes "try-host" and "try-guest" which don't fail in this
case, and instead just silently skip the guest journal setup.
Change -j to mean "try-guest" instead of "guest", and fix the wrong --help
output for it (it said "host" before).
Change systemd-nspawn@.service.in to use "try-guest" so that this unit works
with both persistent and non-persistent journals on the host without failing.
https://bugs.debian.org/770275
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This reverts commit a4962513c555fe3ac4b5bebf97a71701361a45b0.
logind.service is a D-Bus service, hence we should use the dbus name as
indication that we are up. Type=dbus is implied if BusName= is
specified, as it is in this case.
This removes a warning that is printed because a BusName= is specified
for a Type=notify unit.
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The code already calls sd_notify("READY=1"), so we may as well take
advantage of the startup behavior in the unit. The same was done for
the journal in a87a38c20.
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kdbus has seen a larger update than expected lately, most notably with
kdbusfs, a file system to expose the kdbus control files:
* Each time a file system of this type is mounted, a new kdbus
domain is created.
* The layout inside each mount point is the same as before, except
that domains are not hierarchically nested anymore.
* Domains are therefore also unnamed now.
* Unmounting a kdbusfs will automatically also detroy the
associated domain.
* Hence, the action of creating a kdbus domain is now as
privileged as mounting a filesystem.
* This way, we can get around creating dev nodes for everything,
which is last but not least something that is not limited by
20-bit minor numbers.
The kdbus specific bits in nspawn have all been dropped now, as nspawn
can rely on the container OS to set up its own kdbus domain, simply by
mounting a new instance.
A new set of mounts has been added to mount things *after* the kernel
modules have been loaded. For now, only kdbus is in this set, which is
invoked with mount_setup_late().
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It seems that there actually aren't any long running tasks which are
performed at shutdown. If it turns out that there actually are, this
should be revisited.
This reverts most of commit 038193efa6.
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For boot, we might kill fsck in the middle, with likely catastrophic
consequences.
On shutdown there might be other jobs, like downloading of updates for
installation, and other custom jobs. It seems better to schedule an
individual timeout on each one separately, when it is known what
timeout is useful.
Disable the timeouts for now, until we have a clearer picture of how
we can deal with long-running jobs.
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subhierarchies
For priviliged units this resource control property ensures that the
processes have all controllers systemd manages enabled.
For unpriviliged services (those with User= set) this ensures that
access rights to the service cgroup is granted to the user in question,
to create further subgroups. Note that this only applies to the
name=systemd hierarchy though, as access to other controllers is not
safe for unpriviliged processes.
Delegate=yes should be set for container scopes where a systemd instance
inside the container shall manage the hierarchies below its own cgroup
and have access to all controllers.
Delegate=yes should also be set for user@.service, so that systemd
--user can run, controlling its own cgroup tree.
This commit changes machined, systemd-nspawn@.service and user@.service
to set this boolean, in order to ensure that container management will
just work, and the user systemd instance can run fine.
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It already calls sd_notify(), so it looks like an oversight.
Without it, its ordering to systemd-journal-flush.service is
non-deterministic and the SIGUSR1 from flushing may kill journald before
it has its signal handlers set up.
https://bugs.freedesktop.org/show_bug.cgi?id=85871
https://bugzilla.redhat.com/show_bug.cgi?id=1159641
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And conditionalize journald audit support with it
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Otherwise we could attempt to flush the journal while /var/log/ was
still ro, and silently skip journal flushing.
The way that errors in flushing are handled should still be changed to
be more transparent and robust.
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Since commit 19f8d037833f2 'timer: order OnCalendar units after
timer-sync.target if DefaultDependencies=no' timers might get a
dependency on time-sync.target, which does not really belong in early
boot. If ntp is enabled, time-sync.target might be delayed until a
network connection is established.
It turns out that majority of timer units found in the wild do not
need to be started in early boot. Out of the timer units available in
Fedora 21, only systemd-readahead-done.timer and mdadm-last-resort@.timer
should be started early, but they both have DefaultDependencies=no,
so are not part of timers.target anyway. All the rest look like they
will be fine with being started a bit later (and the majority even
much later, since they run daily or weekly).
Let timers.target be pulled in by basic.target, but without the
temporal dependency. This means timer units are started on a "best
effort" schedule.
https://bugzilla.redhat.com/show_bug.cgi?id=1158206
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This service is now synchronous, so "trigger" is misleading.
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Instead, only depend on the actual file systems we need.
This should solve dep loops on setups where remote-fs.target is moved
into late boot.
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In some cases it is preferable to ship system images with a pre-generated
binary hwdb database, to avoid having to build it at runtime, avoid shipping
the source hwdb files, or avoid storing large binary files in /etc.
So if hwdb.bin does not exist in /etc/udev/, fall back to looking for it in
UDEVLIBEXECDIR. This keeps the possibility to add files to /etc/udev/hwdb.d/
and re-generating the database which trumps the one in /usr/lib.
Add a new --usr flag to "udevadm hwdb --update" which puts the database
into UDEVLIBEXECDIR.
Adjust systemd-udev-hwdb-update.service to not generate the file in /etc if we
already have it in /usr.
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are hit
Using the new JobTimeoutAction= setting make sure we power off the
machine after basic.target is queued for longer than 15min but not
executed. Similar, if poweroff.target is queued for longer than 30min
but does not complete, forcibly turn off the system. Similar, if
reboot.target is queued for longer than 30min but does not complete,
forcibly reboot the system.
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This will allow us to mark static device nodes with '!' to indicate that they should only be created at early boot.
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root password
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systemd-journal-flush.service
This new command will ask the journal daemon to flush all log data
stored in /run to /var, and wait for it to complete. This is useful, so
that in case of Storage=persistent we can order systemd-tmpfiles-setup
afterwards, to ensure any possibly newly created directory in /var/log
gets proper access mode and owners.
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systemd-journald check the cgroup id to support rate limit option for
every messages. so journald should be available to access cgroup node in
each process send messages to journald.
In system using SMACK, cgroup node in proc is assigned execute label
as each process's execute label.
so if journald don't want to denied for every process, journald
should have all of access rule for all process's label.
It's too heavy. so we could give special smack label for journald te get
all accesses's permission.
'^' label.
When assign '^' execute smack label to systemd-journald,
systemd-journald need to add CAP_MAC_OVERRIDE capability to get that smack privilege.
so I want to notice this information and set default capability to
journald whether system use SMACK or not.
because that capability affect to only smack enabled kernel
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They were left from an early review iteration, when hibernate-resume
functionality was intended to work also outside of initramfs.
Now this is not the case, and these dependencies became redundant
as systemd-fsck-root.service can never be part of initramfs, and
systemd-remount-fs.service makes little sense in it.
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The unit file is statically enabled, but still requires --enable-terminal
to actually get installed.
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This way we are sure that /dev/net/tun has been given the right permissions before we try to connect to it.
Ideally, we should create tun/tap devices over netlink, and then this whole issue would go away.
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It seems the return code of systemctl daemon-reload can be !=0 in some
circumstances, which causes a failure of the unit and breaks booting in
the initrd.
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^D works in emergency.service too. One needs to log in when in rescue
mode too.
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They both use StandardInput=tty-force so they cannot be run
concurrently.
https://bugs.freedesktop.org/show_bug.cgi?id=82778
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=757072
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After= belongs into [Unit], not [Install]. Found with systemd-analyze
verify.
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Found with systemd-analyze verify.
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/sys/power/resume.
This can be used to initiate a resume from hibernation by path to a swap
device containing the hibernation image.
The respective templated unit is also added. It is instantiated using
path to the desired resume device.
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With this change, it becomes possible to order a unit to activate before any
modifications to the file systems. This is especially useful for supporting
resume from hibernation.
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http://lists.freedesktop.org/archives/systemd-devel/2014-August/021825.html
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vrutkovs> zbyszek:
http://cgit.freedesktop.org/systemd/systemd/diff/units/systemd-journal-upload.service.in?id=ad95fd1d2b9c6344864857c2ba7634fd87753f8e - typo in Group name
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For pluggable ttys such as USB serial devices, the getty is restarted
and exits in a loop until the remove event reaches systemd. Under
certain circumstances the restart loop can overload the system in a
way that prevents the remove event from reaching systemd for a long
time (e.g. at least several minutes on a small embedded system).
Use the default RestartSec to prevent the restart loop from
overloading the system. Serial gettys are interactive units, so
waiting an extra 100ms really doesn't make a difference anyways
compared to the time it takes the user to log in.
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Currently after exiting rescue shell we isolate default target. User
might want to isolate to some other target than default one. However
issuing systemctl isolate command to desired target would bring system
to default target as a consequence of running ExecStopPost action.
Having common ancestor for rescue shell and possible followup systemctl
default command should fix this. If user exits rescue shell we will
proceed with isolating default target, otherwise, on manual isolate,
parent shell process is terminated and we don't isolate default target,
but target chosen by user.
Suggested-by: Michal Schmidt <mschmidt@redhat.com>
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ConditionFirstBoot= instead
As Zbigniew pointed out a new ConditionFirstBoot= appears like the nicer
way to hook in systemd-firstboot.service on first boots (those with /etc
unpopulated), so let's do this, and get rid of the generator again.
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