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systemd/units/systemd-tmpfiles-setup-dev.service

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license: LGPL-2.1+ -> LGPL-2.1-or-later
2020-11-09 07:23:58 +03:00
# SPDX-License-Identifier: LGPL-2.1-or-later
Add SPDX license headers to unit files
2017-11-18 19:35:03 +03:00
#
tmpfiles: create static device nodes before udev is started Since v183, the contents of /usr/lib/udev/devices is no longer copied to /dev on boot, rather systemd-tmpfiles should be used instead. However, as systemd-tmpfiles --create is only ran long after udevd has been started, it is no longer possible to use udev rules to assign permissions to the static nodes. This calls systemd-tmpfiles --create early, before udev is started, and restricts the call to /dev, which is known to be mounted already. In the future, this could also take over the creation of static device nodes from systemd-udevd.
2013-04-11 23:14:40 +04:00
# This file is part of systemd.
#
# systemd is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or
# (at your option) any later version.
[Unit]
units: properly capitalize the unit description
2014-03-06 07:51:11 +04:00
Description=Create Static Device Nodes in /dev
man: link systemd-tmpfiles-setup-dev.service
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Documentation=man:tmpfiles.d(5) man:systemd-tmpfiles(8)
units: reorder/split unit dependency blocks The block is reordered and split to have: 1. description + documentation 2. (optionally) conditions 3. all the dependencies I think it's easier to read the units this way. Also, the Conflicts+Before is seperated out to separate lines. The ordering dependency is "fake", because it could just as well be After=, we are adding it to force ordering wrt. shutdown.target, and it plays a different role than the other Before=, which are about a real ordering on boot.
2022-09-14 14:39:10 +03:00
tmpfiles: create static device nodes before udev is started Since v183, the contents of /usr/lib/udev/devices is no longer copied to /dev on boot, rather systemd-tmpfiles should be used instead. However, as systemd-tmpfiles --create is only ran long after udevd has been started, it is no longer possible to use udev rules to assign permissions to the static nodes. This calls systemd-tmpfiles --create early, before udev is started, and restricts the call to /dev, which is known to be mounted already. In the future, this could also take over the creation of static device nodes from systemd-udevd.
2013-04-11 23:14:40 +04:00
DefaultDependencies=no
units: introduce systemd-tmpfiles-setup-dev-early.service This makes tmpfiles, sysusers, and udevd invoked in the following order: 1. systemd-tmpfiles-setup-dev-early.service Create device nodes gracefully, that is, create device nodes anyway by ignoring unknown users and groups. 2. systemd-sysusers.service Create users and groups, to make later invocations of tmpfiles and udevd can resolve necessary users and groups. 3. systemd-tmpfiles-setup-dev.service Adjust owners of previously created device nodes. 4. systemd-udevd.service Process all devices. Especially to make block devices active and can be mountable. 5. systemd-tmpfiles-setup.service Setup basic filesystem. Follow-up for b42482af904ae0b94a6e4501ec595448f0ba1c06. Fixes #28653. Replaces #28681 and #28732.
2023-08-12 01:54:32 +03:00
After=systemd-tmpfiles-setup-dev-early.service
units: reorder/split unit dependency blocks The block is reordered and split to have: 1. description + documentation 2. (optionally) conditions 3. all the dependencies I think it's easier to read the units this way. Also, the Conflicts+Before is seperated out to separate lines. The ordering dependency is "fake", because it could just as well be After=, we are adding it to force ordering wrt. shutdown.target, and it plays a different role than the other Before=, which are about a real ordering on boot.
2022-09-14 14:39:10 +03:00
Before=sysinit.target local-fs-pre.target systemd-udevd.service
units: pull in local-fs-pre.target from systemd-tmpfiles-setup-dev.service local-fs-pre.target is a passive unit, which means that it is supposed to be pulled in by everything that is ordered before it. We had Before=local-fs-pre.target, so add Wants= too. I don't expect this to change anything. Instead, just make things follow the docs so it's easier to reason about the dependency set.
2023-05-30 19:44:46 +03:00
Wants=local-fs-pre.target
units: add ordering dependencies on initrd-switch-root.target For shutdown, we queue shutdown.target/start, so in every unit which should be stopped *before* shutdown, we need both Conflicts and an ordering dependency with shutdown.target (either Before= or After= would work, because stop jobs are always ordered before start jobs). For initrd transition, we queue initrd-switch-root.service/isolate. This automatically creates a /stop job for every running unit without IgnoreOnIsolate. But no ordering dependency is created, unless the unit has a (possibly transitive) ordering dependency on initrd-switch-root.service. Since most units must stop before the transition, we should add the ordering dependency. It is nicer to use Before=initrd-switch-root.target for this. initrd-switch-root.target is ordered before initrd-switch-root.service, so the effect it the same when both are in a transaction. Fixes #23745. To also cover the case where somebody is emergency mode in the initrd and queues initrd-switch-root.service/start (not isolate), also add Conflicts=initrd-switch-root.target, so various units are stopped properly. This extends 2525682565b372b9b83c848bfe89c025fed47a1d to cover all the other services that are touched. It could be consider "operator error", but it's easy to make and it's nicer if we can make this more foolproof.
2022-09-14 14:39:10 +03:00
Conflicts=shutdown.target initrd-switch-root.target
Before=shutdown.target initrd-switch-root.target
tmpfiles: create static device nodes before udev is started Since v183, the contents of /usr/lib/udev/devices is no longer copied to /dev on boot, rather systemd-tmpfiles should be used instead. However, as systemd-tmpfiles --create is only ran long after udevd has been started, it is no longer possible to use udev rules to assign permissions to the static nodes. This calls systemd-tmpfiles --create early, before udev is started, and restricts the call to /dev, which is known to be mounted already. In the future, this could also take over the creation of static device nodes from systemd-udevd.
2013-04-11 23:14:40 +04:00
[Service]
Type=oneshot
kmod-static-nodes: remain after exit
2013-07-22 19:10:15 +04:00
RemainAfterExit=yes
units: introduce systemd-tmpfiles-setup-dev-early.service This makes tmpfiles, sysusers, and udevd invoked in the following order: 1. systemd-tmpfiles-setup-dev-early.service Create device nodes gracefully, that is, create device nodes anyway by ignoring unknown users and groups. 2. systemd-sysusers.service Create users and groups, to make later invocations of tmpfiles and udevd can resolve necessary users and groups. 3. systemd-tmpfiles-setup-dev.service Adjust owners of previously created device nodes. 4. systemd-udevd.service Process all devices. Especially to make block devices active and can be mountable. 5. systemd-tmpfiles-setup.service Setup basic filesystem. Follow-up for b42482af904ae0b94a6e4501ec595448f0ba1c06. Fixes #28653. Replaces #28681 and #28732.
2023-08-12 01:54:32 +03:00
ExecStart=systemd-tmpfiles --prefix=/dev --create --boot
units: use symbolic exit code names (nspawn uses 133 which doesn't have a name. That's reasonable, because there's less chance of conflict with a return value from the payload.)
2019-07-28 16:00:08 +03:00
SuccessExitStatus=DATAERR CANTCREAT
units: Use ImportCredential= where applicable
2023-06-08 15:09:36 +03:00
ImportCredential=tmpfiles.*
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