systemd-update-done.service(category31-clients.html) - phpMan

SYSTEMD-UPDATE-DONE.SERVICsystemd-update-done.seSYSTEMD-UPDATE-DONE.SERVICE(8)
NAME
       systemd-update-done.service, systemd-update-done - Mark /etc and /var
       fully updated
SYNOPSIS
       systemd-update-done.service
       /usr/lib/systemd/systemd-update-done
DESCRIPTION
       systemd-update-done.service is a service that is invoked as part of the
       first boot after the vendor operating system resources in /usr have
       been updated. This is useful to implement offline updates of /usr which
       might require updates to /etc or /var on the following boot.
       systemd-update-done.service updates the file modification time (mtime)
       of the stamp files /etc/.updated and /var/.updated to the modification
       time of the /usr directory, unless the stamp files are already newer.
       Services that shall run after offline upgrades of /usr should order
       themselves before systemd-update-done.service, and use the
       ConditionNeedsUpdate= (see systemd.unit(5)) condition to make sure to
       run when /etc or /var are older than /usr according to the modification
       times of the files described above. This requires that updates to /usr
       are always followed by an update of the modification time of /usr, for
       example by invoking touch(1) on it.
SEE ALSO
       systemd(1), systemd.unit(5), touch(1)
systemd 239                                     SYSTEMD-UPDATE-DONE.SERVICE(8)