'\" t .TH "SYSTEMD\-UPDATE\-DONE\&.SERVICE" "8" "" "systemd 256.6" "systemd-update-done.service" .\" ----------------------------------------------------------------- .\" * Define some portability stuff .\" ----------------------------------------------------------------- .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .\" http://bugs.debian.org/507673 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" ----------------------------------------------------------------- .\" * set default formatting .\" ----------------------------------------------------------------- .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l .\" ----------------------------------------------------------------- .\" * MAIN CONTENT STARTS HERE * .\" ----------------------------------------------------------------- .SH "NAME" systemd-update-done.service, systemd-update-done \- Mark /etc/ and /var/ fully updated .SH "SYNOPSIS" .PP systemd\-update\-done\&.service .PP /usr/lib/systemd/systemd\-update\-done .SH "DESCRIPTION" .PP 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\&. .PP 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\&. .PP Services that shall run after offline upgrades of /usr/ should order themselves before systemd\-update\-done\&.service, and use the \fIConditionNeedsUpdate=\fR (see \fBsystemd.unit\fR(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 \fBtouch\fR(1) on it\&. .PP Note that if the \fIsystemd\&.condition_needs_update=\fR kernel command line option is used it overrides the \fIConditionNeedsUpdate=\fR unit condition checks\&. In that case systemd\-update\-done\&.service will not reset the condition state until a follow\-up reboot where the kernel switch is not specified anymore\&. .SH "SEE ALSO" .PP \fBsystemd\fR(1), \fBsystemd.unit\fR(5), \fBtouch\fR(1)