dh_installsystemd(1) — Linux manual page


DH_INSTALLSYSTEMD(1)            Debhelper           DH_INSTALLSYSTEMD(1)

NAME         top

       dh_installsystemd - install systemd unit files

SYNOPSIS         top

       dh_installsystemd [debhelper options] [--restart-after-upgrade]
       [--no-stop-on-upgrade] [--no-enable] [--no-start] [--name=name]
       [unit file ...]

DESCRIPTION         top

       dh_installsystemd is a debhelper program that is responsible for
       installing package maintainer supplied systemd unit files.

       It also finds the service files installed by a package and
       generates preinst, postinst, and prerm code blocks for enabling,
       disabling, starting, stopping, and restarting the corresponding
       systemd services, when the package is installed, updated, or
       removed. These snippets are added to the maintainer scripts by

       deb-systemd-helper(1) is used to enable and disable systemd
       units, thus it is not necessary that the machine actually runs
       systemd during package installation time, enabling happens on all
       machines in order to be able to switch from sysvinit to systemd
       and back.

       dh_installsystemd operates on all unit files installed by a
       package. For only generating blocks for specific unit files, pass
       them as arguments, "dh_installsystemd quota.service". Specific
       unit files can be excluded from processing using the -X common
       debhelper(1) option.

FILES         top

       debian/package.mount, debian/package.path, debian/package@.path,
       debian/package.service, debian/package@.service,
       debian/package.socket, debian/package@.socket,
       debian/package.target, debian/package@.target,
       debian/package.timer, debian/package@.timer
           If any of those files exists, they are installed into
           usr/lib/systemd/system/ in the package build directory.

           Only used in compat 12 or earlier.  In compat 13+, this file
           is handled by dh_installtmpfiles(1) instead.

           If this exists, it is installed into usr/lib/tmpfiles.d/ in
           the package build directory. Note that the "tmpfiles.d"
           mechanism is currently only used by systemd.

OPTIONS         top

           Disable the service(s) on purge, but do not enable them on

           Note that this option does not affect whether the services
           are started.  Please remember to also use --no-start if the
           service should not be started.

           This option controls several things.

           It changes the name that dh_installsystemd uses when it looks
           for maintainer provided systemd unit files as listed in the
           "FILES" section.  As an example, dh_installsystemd --name foo
           will look for debian/package.foo.service instead of
           debian/package.service).  These unit files are installed as
           name.unit-extension (in the example, it would be installed as

           Furthermore, if no unit files are passed explicitly as
           command line arguments, dh_installsystemd will only act on
           unit files called name (rather than all unit files found in
           the package).

           Do not stop the unit file until after the package upgrade has
           been completed.  This is the default behaviour in compat 10.

           In earlier compat levels the default was to stop the unit
           file in the prerm, and start it again in the postinst.

           This can be useful for daemons that should not have a
           possibly long downtime during upgrade. But you should make
           sure that the daemon will not get confused by the package
           being upgraded while it's running before using this option.

           Undo a previous --restart-after-upgrade (or the default of
           compat 10).  If no other options are given, this will cause
           the service to be stopped in the prerm script and started
           again in the postinst script.

       -r, --no-stop-on-upgrade, --no-restart-on-upgrade
           Do not stop service on upgrade. This has the side-effect of
           not restarting the service as a part of the upgrade.

           If you want to restart the service with minimal downtime,
           please use --restart-after-upgrade (default in compat 10 or
           later).  If you want the service to be restarted but be
           stopped during the upgrade, then please use
           --no-restart-after-upgrade (note the "after-upgrade").

           Note that the --no-restart-on-upgrade alias is deprecated and
           will be removed in compat 14.  This is to avoid confusion
           with the --no-restart-after-upgrade option.

           Do not start the unit file after upgrades and after initial
           installation (the latter is only relevant for services
           without a corresponding init script).

           Note that this option does not affect whether the services
           are enabled.  Please remember to also use --no-enable if the
           services should not be enabled.

       unit file ...
           Only process and generate maintscripts for the installed unit
           files with the (base)name unit file.

           Note: dh_installsystemd will still install unit files from
           debian/ but it will not generate any maintscripts for them
           unless they are explicitly listed in unit file ...

NOTES         top

       This command is not idempotent. dh_prep(1) should be called
       between invocations of this command (with the same arguments).
       Otherwise, it may cause multiple instances of the same text to be
       added to maintainer scripts.

SEE ALSO         top

       debhelper(7), dh_installinit(1), deb-systemd-helper(1)

AUTHORS         top


COLOPHON         top

       This page is part of the debhelper (helper programs for
       debian/rules) project.  Information about the project can be
       found at [unknown -- if you know, please contact man-
       pages@man7.org] If you have a bug report for this manual page,
       send it to submit@bugs.debian.org.  This page was obtained from
       the project's upstream Git repository
       ⟨https://salsa.debian.org/debian/debhelper.git⟩ on 2021-08-27.
       (At that time, the date of the most recent commit that was found
       in the repository was 2021-08-24.)  If you discover any rendering
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       (which is not part of the original manual page), send a mail to

13.5                           2021-08-26           DH_INSTALLSYSTEMD(1)

Pages that refer to this page: dh_installinit(1)dh_installsystemduser(1)debhelper(7)