X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=man%2Fsystemd.mount.xml;h=f319cf7ce9d36f8921f23e724ced28efc9437764;hp=bb969bb4e82c59c962d19d7e56ef981bc753f511;hb=e22ac43bc057a305d748221c3b2c935084d6f1b5;hpb=e0cabd4bb536bce3a9636a12b8dbc512c28c2395 diff --git a/man/systemd.mount.xml b/man/systemd.mount.xml index bb969bb4e..f319cf7ce 100644 --- a/man/systemd.mount.xml +++ b/man/systemd.mount.xml @@ -9,16 +9,16 @@ Copyright 2010 Lennart Poettering systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. + Lesser General Public License for more details. - You should have received a copy of the GNU General Public License + You should have received a copy of the GNU Lesser General Public License along with systemd; If not, see . --> @@ -44,7 +44,7 @@ systemd.mount - systemd mount configuration files + Mount unit configuration @@ -69,7 +69,20 @@ in the [Mount] section. Additional options are listed in - systemd.exec5. + systemd.exec5, + which define the execution environment the + mount8 + binary is executed in, and in + systemd.kill5 + which define the way the processes are + terminated. 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; + mount8 + will refuse options that aren't 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 @@ -85,37 +98,74 @@ mounting. See systemd.automount5. - If an mount point is beneath another mount point - in the file system hierarchy a dependency between both + If a mount point is beneath another mount point + in the file system hierarchy, a dependency between both units is created automatically. + + 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 proc5. + + + Some file systems have special semantics as API + file systems for kernel-to-userspace and + userspace-to-userpace interfaces. Some of them may not + be changed via mount units, and cannot be disabled. + For a longer discussion see API + File Systems. - <filename>fstab</filename> + <filename>/etc/fstab</filename> Mount units may either be configured via unit files, or via /etc/fstab (see fstab5 - for details). + 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. See + systemd-fstab-generator8 + 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 from /etc/fstab. If - is specified as - mount option then systemd will create a dependency of - type from either + points from /etc/fstab. systemd + will create a dependency of type + from either local-fs.target or remote-fs.target, depending whether the file system is local or remote. If - is set, an - automount unit will be created for the file system. See + is set, an + automount unit will be created for the file + system. See systemd.automount5 - for details. + for details. If + is + specified it may be used to configure how long systemd + should wait for a device to show up before giving up + on an entry from + /etc/fstab. Specify a time in + seconds or explicitly specify a unit as + s, min, + h, ms. If a mount point is configured in both - /etc/fstab and a unit file the - configuration in the latter takes precedence. + /etc/fstab and a unit file that + is stored below /usr the former + will take precedence. If the unit file is stored below + /etc it will take + precedence. This means: native unit files take + precedence over traditional configuration files, but + this is superseded by the rule that configuration in + /etc will always take precedence + over configuration in + /usr. @@ -126,7 +176,9 @@ supervises. A number of options that may be used in this section are shared with other unit types. These options are documented in - systemd.exec5. The + systemd.exec5 + and + systemd.kill5. The options specific to the [Mount] section of mount units are the following: @@ -139,7 +191,7 @@ resource to mount. See mount8 for details. If this refers to a - device node a dependency on the + device node, a dependency on the respective device unit is automatically created. (See systemd.device5 for more information.) @@ -151,8 +203,8 @@ Where= Takes an absolute path of a directory of the mount point. If - the mount point is not existing at - time of mounting it is created. This + the mount point does not exist at the + time of mounting, it is created. This string must be reflected in the unit file name. (See above.) This option is mandatory. @@ -172,7 +224,7 @@ Mount options to use when mounting. This takes a comma - seperated list of options. This + separated list of options. This setting is optional. @@ -183,7 +235,8 @@ are automatically created if needed. This option specifies the file system access mode used when creating - these directories. Defaults to + these directories. Takes an access + mode in octal notation. Defaults to 0755. @@ -191,36 +244,48 @@ TimeoutSec= Configures the time to wait for the mount command to - finish. If a comand does not exit + finish. If a command does not exit within the configured time the mount will be considered failed and be shut down again. All commands still running will be terminated forcibly via SIGTERM, and after another delay of this time with SIGKILL. (See - below.) + in + systemd.kill5.) Takes a unit-less value in seconds, or a time span value such as "5min 20s". Pass 0 to disable the timeout logic. Defaults to - 60s. + 90s. + + Check + systemd.exec5 + and + systemd.kill5 + for more settings. + + + + Compatibility Options + + The following option is also available in the + [Mount] section, but exists purely + for compatibility reasons and should not be used in + newly written mount files. + + - KillMode= - Specifies how - processes of this mount shall be - killed. One of - , - , - , - . - - This option is mostly equivalent - to the - option of service files. See + FsckPassNo= + + The pass number for + the file system checking service for + this mount. See systemd.service5 - for details. + for more information on this setting. + @@ -228,12 +293,17 @@ See Also - systemd8, + systemd1, systemctl8, systemd.unit5, systemd.exec5, + systemd.kill5, + systemd.service5, systemd.device5, - mount8 + proc5, + mount8, + systemd-fstab-generator8, + systemd.directives7