Documentation=http://freedesktop.org/wiki/Software/systemd/SystemUpdates
Documentation=man:systemd.special(7) man:systemd-system-update-generator(8)
Requires=sysinit.target
-Conflicts=shutdown.target systemd-readahead-collect.service systemd-readahead-replay.service
+Conflicts=shutdown.target
After=sysinit.target
Before=shutdown.target
AllowIsolate=yes