SYSTEMD.AUTOMOUNT(5)systemd.automountSYSTEMD.AUTOMOUNT(5)NAMEsystemd.automount - Automount unit configuration
SYNOPSIS
automount.automount
DESCRIPTION
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.
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
set:
· Automount units acquire automatic Before= and Conflicts= on
umount.target in order to be stopped during shutdown.
FSTAB
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
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:
Where=
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.
DirectoryMode=
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.
TimeoutIdleSec=
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 ALSOsystemd(1), systemctl(1), systemd.unit(5), systemd.mount(5), mount(8),
automount(8), systemd.directives(7)systemd 236SYSTEMD.AUTOMOUNT(5)
