systemd.automount(5) — Linux manual page


SYSTEMD.AUTOMOUNT(5)          systemd.automount         SYSTEMD.AUTOMOUNT(5)

NAME         top

       systemd.automount - Automount unit configuration

SYNOPSIS         top


DESCRIPTION         top

       A unit configuration file whose name ends in ".automount" encodes
       information about a file system automount point controlled and
       supervised by systemd.

       This man page lists the configuration options specific to this unit
       type. See systemd.unit(5) for the common options of all unit
       configuration files. The common configuration items are configured in
       the generic [Unit] and [Install] sections. The automount specific
       configuration options are configured in the [Automount] section.

       Automount units must be named after the automount directories they
       control. Example: the automount point /home/lennart must be
       configured in a unit file home-lennart.automount. For details about
       the escaping logic used to convert a file system path to a unit name
       see systemd.unit(5). Note that automount units cannot be templated,
       nor is it possible to add multiple names to an automount unit by
       creating additional symlinks to its unit file.

       For each automount unit file a matching mount unit file (see
       systemd.mount(5) for details) must exist which is activated when the
       automount path is accessed. Example: if an automount unit
       home-lennart.automount is active and the user accesses /home/lennart
       the mount unit home-lennart.mount will be activated.

       Automount units may be used to implement on-demand mounting as well
       as parallelized mounting of file systems.

       Note that automount units are separate from the mount itself, so you
       should not set After= or Requires= for mount dependencies here. For
       example, you should not set or similar on
       network filesystems. Doing so may result in an ordering cycle.


   Implicit Dependencies
       The following dependencies are implicitly added:

       ·   If an automount unit is beneath another mount unit in the file
           system hierarchy, both a requirement and an ordering dependency
           between both units are created automatically.

       ·   An implicit Before= dependency is created between an automount
           unit and the mount unit it activates.

   Default Dependencies
       The following dependencies are added unless DefaultDependencies=no is

       ·   Automount units acquire automatic Before= and Conflicts= on
  in order to be stopped during shutdown.

       ·   Automount units automatically gain an After= dependency on
 , and a Before= dependency on

FSTAB         top

       Automount units may either be configured via unit files, or via
       /etc/fstab (see fstab(5) for details).

       For details how systemd parses /etc/fstab see systemd.mount(5).

       If an automount point is configured in both /etc/fstab and a unit
       file, the configuration in the latter takes precedence.

OPTIONS         top

       Automount files must include an [Automount] section, which carries
       information about the file system automount points it supervises. The
       options specific to the [Automount] section of automount units are
       the following:

           Takes an absolute path of a directory of the automount point. If
           the automount point does not exist at time that the automount
           point is installed, it is created. This string must be reflected
           in the unit filename. (See above.) This option is mandatory.

           Directories of automount points (and any parent directories) are
           automatically created if needed. This option specifies the file
           system access mode used when creating these directories. Takes an
           access mode in octal notation. Defaults to 0755.

           Configures an idle timeout. Once the mount has been idle for the
           specified time, systemd will attempt to unmount. Takes a
           unit-less value in seconds, or a time span value such as "5min
           20s". Pass 0 to disable the timeout logic. The timeout is
           disabled by default.

SEE ALSO         top

       systemd(1), systemctl(1), systemd.unit(5), systemd.mount(5),
       mount(8), automount(8), systemd.directives(7)

COLOPHON         top

       This page is part of the systemd (systemd system and service manager)
       project.  Information about the project can be found at 
       ⟨⟩.  If you have a bug
       report for this manual page, see
       ⟨⟩.  This
       page was obtained from the project's upstream Git repository
       ⟨⟩ on 2020-09-18.  (At that
       time, the date of the most recent commit that was found in the repos‐
       itory was 2020-09-18.)  If you discover any rendering problems in
       this HTML version of the page, or you believe there is a better or
       more up-to-date source for the page, or you have corrections or
       improvements to the information in this COLOPHON (which is not part
       of the original manual page), send a mail to

systemd 246                                             SYSTEMD.AUTOMOUNT(5)

Pages that refer to this page: init(1)systemd(1)systemd-mount(1)systemd-umount(1)systemd.mount(5)systemd.unit(5)30-systemd-environment-d-generator(7)systemd.directives(7)systemd.index(7)systemd.syntax(7)