systemd/units/system-update-pre.target

#  SPDX-License-Identifier: LGPL-2.1-or-later
#
#  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]
Description=Offline System Update (Pre)
Documentation=man:systemd.offline-updates(7)
Documentation=man:systemd.special(7) man:systemd-system-update-generator(8)
RefuseManualStart=yes
After=sysinit.target
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`
units: Add new system-update-pre.target systemd offline-updates allows dropping multiple system update units to be added to system-update.target.wants. As documented in systemd.offline-updates(7) only 1 of these units should actually be active (based on the /system-update symlink) and when that unit is done it should reboot the system. In some cases it is desirable to run a unit whenever booting in offline-updates mode indepedent of which update unit is going to handle the update. One example of this is integration with bootloader code which checks if the previous boot was succesful. Since the active unit will reboot the system when it is done, there is no guarantee that adding such a unit to system-update.target.wants will get it executed always. This commit adds a system-update-pre.target which can be used for units which should always run when booting in offline-updates mode. 2018-06-19 11:50:41 +03:00			`#`
			`# 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]`
			`Description=Offline System Update (Pre)`
			`Documentation=man:systemd.offline-updates(7)`
			`Documentation=man:systemd.special(7) man:systemd-system-update-generator(8)`
			`RefuseManualStart=yes`
			`After=sysinit.target`