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Diffstat (limited to 'units/system-update-cleanup.service')
| -rw-r--r-- | units/system-update-cleanup.service | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/units/system-update-cleanup.service b/units/system-update-cleanup.service new file mode 100644 index 0000000..d0878dc --- /dev/null +++ b/units/system-update-cleanup.service @@ -0,0 +1,35 @@ +# 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=Remove the Offline System Updates Symlink +Documentation=man:systemd.special(7) man:systemd.offline-updates(7) +After=system-update.target +DefaultDependencies=no +Conflicts=shutdown.target +Before=shutdown.target +SuccessAction=reboot + +# system-update-generator uses laccess("/system-update"), while a plain +# ConditionPathExists=/system-update uses access("/system-update"), so +# we need an alternate condition to cover the case of a dangling symlink. +# +# This service is only invoked if /system-update exists, i.e. if the +# condition tested by system-update-generator remains true and the system +# would be diverted into system-update.target again after reboot. This way +# we guard against being diverted into system-update.target again, which +# works as a safety measure, but we will not step on the toes of the +# update script if it successfully removed the symlink and scheduled a +# reboot or some other action on its own. +ConditionPathExists=|/system-update +ConditionPathIsSymbolicLink=|/system-update + +[Service] +Type=oneshot +ExecStart=/bin/rm -fv /system-update |