NAMEsystemd.mount - Mount unit configuration
A unit configuration file whose name ends in ".mount" encodes information about a file system mount 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 mount specific configuration options are configured in the [Mount] section.
Additional options are listed in systemd.exec(5), which define the execution environment the mount(8) binary is executed in, and in systemd.kill(5), which define the way the processes are terminated, and in systemd.resource-control(5), which configure resource control settings for the processes of the service. Note that the User= and Group= options are not particularly useful for mount units specifying a "Type=" option or using configuration not specified in /etc/fstab; mount(8) will refuse options that are not listed in /etc/fstab if it is not run as UID 0.
Mount units must be named after the mount point directories they control. Example: the mount point /home/lennart must be configured in a unit file home-lennart.mount. For details about the escaping logic used to convert a file system path to a unit name, see systemd.unit(5). Note that mount units cannot be templated.
Optionally, a mount unit may be accompanied by an automount unit, to allow on-demand or parallelized mounting. See systemd.automount(5).
Mount points created at runtime (independently of unit files or /etc/fstab) will be monitored by systemd and appear like any other mount unit in systemd. See /proc/self/mountinfo description in proc(5).
Some file systems have special semantics as API file systems for kernel-to-userspace and userspace-to-userspace interfaces. Some of them may not be changed via mount units, and cannot be disabled. For a longer discussion see m[blue]API File Systemsm
If a mount unit is beneath another mount unit in the file system hierarchy, both a requirement dependency and an ordering dependency between both units are created automatically.
Block device backed file systems automatically gain BindsTo= and After= type dependencies on the device unit encapsulating the block device (see below).
If traditional file system quota is enabled for a mount unit, automatic Wants= and Before= dependencies on systemd-quotacheck.service and quotaon.service are added.
For mount units with DefaultDependencies=yes (the default) a couple additional dependencies are added. Mount units referring to local file systems automatically gain an After= dependency on local-fs-pre.target. Network mount units automatically acquire After= dependencies on remote-fs-pre.target, network.target and network-online.target. Towards the latter a Wants= unit is added as well. Mount units referring to local and network file systems are distinguished by their file system type specification. In some cases this is not sufficient (for example network block device based mounts, such as iSCSI), in which case _netdev may be added to the mount option string of the unit, which forces systemd to consider the mount unit a network mount. Mount units (regardless if local or network) also acquire automatic Before= and Conflicts= on umount.target in order to be stopped during shutdown.
Mount units may either be configured via unit files, or via /etc/fstab (see fstab(5) for details). Mounts listed in /etc/fstab will be converted into native units dynamically at boot and when the configuration of the system manager is reloaded. In general, configuring mount points through /etc/fstab is the preferred approach. See systemd-fstab-generator(8) for details about the conversion.
When reading /etc/fstab a few special mount options are understood by systemd which influence how dependencies are created for mount points. systemd will create a dependency of type Wants= or Requires (see option nofail below), from either local-fs.target or remote-fs.target, depending whether the file system is local or rem