chiark / gitweb /
mount: clarify that User= and Group= are useless with an explicit Type=
[elogind.git] / man / systemd.mount.xml
index 7be7d4938e9dcb1992285f9c9ea081f4aadb5ae3..f32861b159ed48cd7f766f5ccc1c1697b74137f5 100644 (file)
@@ -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 <http://www.gnu.org/licenses/>.
 -->
 
@@ -44,7 +44,7 @@
 
         <refnamediv>
                 <refname>systemd.mount</refname>
-                <refpurpose>systemd mount configuration files</refpurpose>
+                <refpurpose>Mount unit configuration</refpurpose>
         </refnamediv>
 
         <refsynopsisdiv>
                 in the [Mount] section.</para>
 
                 <para>Additional options are listed in
-                <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
+                <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+                which define the execution environment the
+                <citerefentry><refentrytitle>mount</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+                binary is executed in, and in
+                <citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+                which define the way the processes are
+                terminated. The User= and Group= options are not useful
+                for mount units specifying a Type= option; the mount
+                binary must run as root if there is a specified type.</para>
 
                 <para>Mount units must be named after the mount point
                 directories they control. Example: the mount point
@@ -85,8 +93,8 @@
                 mounting. See
                 <citerefentry><refentrytitle>systemd.automount</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
 
-                <para>If an mount point is beneath another mount point
-                in the file system hierarchy a dependency between both
+                <para>If a mount point is beneath another mount point
+                in the file system hierarchy, a dependency between both
                 units is created automatically.</para>
 
                 <para>Mount points created at runtime independent on
         </refsect1>
 
         <refsect1>
-                <title><filename>fstab</filename></title>
+                <title><filename>/etc/fstab</filename></title>
 
                 <para>Mount units may either be configured via unit
                 files, or via <filename>/etc/fstab</filename> (see
                 <citerefentry><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry>
-                for details).</para>
+                for details). Mounts listed in
+                <filename>/etc/fstab</filename> will be converted into
+                native units dynamically at boot and when the
+                configuration of the system manager is reloaded. See
+                <citerefentry><refentrytitle>systemd-fstab-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+                for details about the conversion.</para>
 
                 <para>When reading <filename>/etc/fstab</filename> a
                 few special mount options are understood by systemd
                 which influence how dependencies are created for mount
-                points from <filename>/etc/fstab</filename>. If
-                <option>comment=systemd.mount</option> is specified as
-                mount option then systemd will create a dependency of
-                type <option>Wants</option> from either
+                points from <filename>/etc/fstab</filename>. systemd
+                will create a dependency of type
+                <option>Wants</option> from either
                 <filename>local-fs.target</filename> or
                 <filename>remote-fs.target</filename>, depending
                 whether the file system is local or remote. If
-                <option>comment=systemd.automount</option> is set, an
-                automount unit will be created for the file system. See
+                <option>x-systemd.automount</option> is set, an
+                automount unit will be created for the file
+                system. See
                 <citerefentry><refentrytitle>systemd.automount</refentrytitle><manvolnum>5</manvolnum></citerefentry>
-                for details.</para>
+                for details. If
+                <option>x-systemd.device-timeout=</option> 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
+                <filename>/etc/fstab</filename>. Specify a time in
+                seconds or explicitly specify a unit as
+                <literal>s</literal>, <literal>min</literal>,
+                <literal>h</literal>, <literal>ms</literal>.</para>
 
                 <para>If a mount point is configured in both
-                <filename>/etc/fstab</filename> and a unit file the
+                <filename>/etc/fstab</filename> and a unit file, the
                 configuration in the latter takes precedence.</para>
         </refsect1>
 
                 supervises. A number of options that may be used in
                 this section are shared with other unit types. These
                 options are documented in
-                <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>. The
+                <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+                and
+                <citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>. The
                 options specific to the [Mount] section of mount
                 units are the following:</para>
 
                                 resource to mount. See
                                 <citerefentry><refentrytitle>mount</refentrytitle><manvolnum>8</manvolnum></citerefentry>
                                 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
                                 <citerefentry><refentrytitle>systemd.device</refentrytitle><manvolnum>5</manvolnum></citerefentry> for more information.)
                                 <term><varname>Where=</varname></term>
                                 <listitem><para>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.</para></listitem>
 
                                 <listitem><para>Mount options to use
                                 when mounting. This takes a comma
-                                seperated list of options. This
+                                separated list of options. This
                                 setting is optional.</para></listitem>
                         </varlistentry>
 
                                 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.</para></listitem>
                         </varlistentry>
 
                                 <term><varname>TimeoutSec=</varname></term>
                                 <listitem><para>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
-                                <option>KillMode=</option> below.)
+                                <option>KillMode=</option> in
+                                <citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>.)
                                 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.</para></listitem>
+                                90s.</para></listitem>
                         </varlistentry>
+                </variablelist>
+
+                <para>Check
+                <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+                and
+                <citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+                for more settings.</para>
+        </refsect1>
+
+        <refsect1>
+                <title>Compatibility Options</title>
+
+                <para>The following option is also available in the
+                <literal>[Mount]</literal> section, but exists purely
+                for compatibility reasons and should not be used in
+                newly written mount files.</para>
 
+                <variablelist>
                         <varlistentry>
-                                <term><varname>KillMode=</varname></term>
-                                <listitem><para>Specifies how
-                                processes of this mount shall be
-                                killed. One of
-                                <option>control-group</option>,
-                                <option>process-group</option>,
-                                <option>process</option>,
-                                <option>none</option>.</para>
-
-                                <para>This option is mostly equivalent
-                                to the <option>KillMode=</option>
-                                option of service files. See
+                                <term><varname>FsckPassNo=</varname></term>
+
+                                <listitem><para>The pass number for
+                                the file system checking service for
+                                this mount. See
                                 <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>
-                                for details.</para></listitem>
+                                for more information on this setting.
+                                </para></listitem>
                         </varlistentry>
                 </variablelist>
         </refsect1>
         <refsect1>
                   <title>See Also</title>
                   <para>
-                          <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+                          <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
                           <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
                           <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                           <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+                          <citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+                          <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                           <citerefentry><refentrytitle>systemd.device</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
-                          <citerefentry><refentrytitle>mount</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+                          <citerefentry><refentrytitle>mount</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+                          <citerefentry><refentrytitle>systemd-fstab-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>
                   </para>
         </refsect1>