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514094f9 | 1 | <?xml version='1.0'?> |
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2 | <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" |
3 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> | |
4 | ||
5 | <!-- | |
572eb058 | 6 | SPDX-License-Identifier: LGPL-2.1+ |
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7 | --> |
8 | ||
9 | <refentry id="systemd-mount" | |
10 | xmlns:xi="http://www.w3.org/2001/XInclude"> | |
11 | ||
12 | <refentryinfo> | |
13 | <title>systemd-mount</title> | |
14 | <productname>systemd</productname> | |
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15 | </refentryinfo> |
16 | ||
17 | <refmeta> | |
18 | <refentrytitle>systemd-mount</refentrytitle> | |
19 | <manvolnum>1</manvolnum> | |
20 | </refmeta> | |
21 | ||
22 | <refnamediv> | |
23 | <refname>systemd-mount</refname> | |
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24 | <refname>systemd-umount</refname> |
25 | <refpurpose>Establish and destroy transient mount or auto-mount points</refpurpose> | |
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26 | </refnamediv> |
27 | ||
28 | <refsynopsisdiv> | |
29 | <cmdsynopsis> | |
30 | <command>systemd-mount</command> | |
31 | <arg choice="opt" rep="repeat"><replaceable>OPTIONS</replaceable></arg> | |
32 | <arg choice="plain"><replaceable>WHAT</replaceable></arg> | |
33 | <arg choice="opt"><replaceable>WHERE</replaceable></arg> | |
34 | </cmdsynopsis> | |
35 | <cmdsynopsis> | |
36 | <command>systemd-mount</command> | |
37 | <arg choice="opt" rep="repeat"><replaceable>OPTIONS</replaceable></arg> | |
38 | <arg choice="plain"><option>--list</option></arg> | |
39 | </cmdsynopsis> | |
d20a328f | 40 | <cmdsynopsis> |
9017f5d8 | 41 | <command>systemd-mount</command> |
d20a328f | 42 | <arg choice="opt" rep="repeat"><replaceable>OPTIONS</replaceable></arg> |
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43 | <arg choice="plain"><option>--umount</option></arg> |
44 | <arg choice="plain" rep="repeat"><replaceable>WHAT|WHERE</replaceable></arg> | |
d20a328f | 45 | </cmdsynopsis> |
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46 | </refsynopsisdiv> |
47 | ||
48 | <refsect1> | |
49 | <title>Description</title> | |
50 | ||
51 | <para><command>systemd-mount</command> may be used to create and start a transient <filename>.mount</filename> or | |
52 | <filename>.automount</filename> unit of the file system <replaceable>WHAT</replaceable> on the mount point | |
53 | <replaceable>WHERE</replaceable>.</para> | |
54 | ||
55 | <para>In many ways, <command>systemd-mount</command> is similar to the lower-level | |
98e9d710 | 56 | <citerefentry project='man-pages'><refentrytitle>mount</refentrytitle><manvolnum>8</manvolnum></citerefentry> command, however instead |
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57 | of executing the mount operation directly and immediately, <command>systemd-mount</command> schedules it through |
58 | the service manager job queue, so that it may pull in further dependencies (such as parent mounts, or a file system | |
59 | checker to execute a priori), and may make use of the auto-mounting logic.</para> | |
60 | ||
61 | <para>The command takes either one or two arguments. If only one argument is specified it should refer to a block | |
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62 | device or regular file containing a file system (e.g. <literal>/dev/sdb1</literal> or |
63 | <literal>/path/to/disk.img</literal>). If it is a block device, which is then probed for a label and other | |
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64 | metadata, and is mounted to a directory whose name is generated from the label. In this mode the block device must |
65 | exist at the time of invocation of the command, so that it may be probed. If the device is found to be a removable | |
66 | block device (e.g. a USB stick) an automount point instead of a regular mount point is created (i.e. the | |
67 | <option>--automount=</option> option is implied, see below).</para> | |
68 | ||
69 | <para>If two arguments are specified the first indicates the mount source (the <replaceable>WHAT</replaceable>) and | |
70 | the second indicates the path to mount it on (the <replaceable>WHERE</replaceable>). In this mode no probing of the | |
71 | source is attempted, and a backing device node doesn't have to exist yet. However, if this mode is combined with | |
72 | <option>--discover</option>, device node probing for additional metadata is enabled, and – much like in the | |
73 | single-argument case discussed above – the specified device has to exist at the time of invocation of the | |
74 | command.</para> | |
75 | ||
76 | <para>Use the <option>--list</option> command to show a terse table of all local, known block devices with file | |
77 | systems that may be mounted with this command.</para> | |
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78 | |
79 | <para><command>systemd-umount</command> can be used to unmount a mount or automount point. It is the same | |
8cc7661d | 80 | as <command>systemd-mount</command> <option>--umount</option>.</para> |
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81 | </refsect1> |
82 | ||
83 | <refsect1> | |
84 | <title>Options</title> | |
85 | ||
86 | <para>The following options are understood:</para> | |
87 | ||
88 | <variablelist> | |
89 | ||
90 | <varlistentry> | |
91 | <term><option>--no-block</option></term> | |
92 | ||
93 | <listitem> | |
94 | <para>Do not synchronously wait for the requested operation to finish. If this is not specified, the job will | |
95 | be verified, enqueued and <command>systemd-mount</command> will wait until the mount or automount unit's | |
96 | start-up is completed. By passing this argument, it is only verified and enqueued.</para> | |
97 | </listitem> | |
98 | </varlistentry> | |
99 | ||
100 | <xi:include href="standard-options.xml" xpointer="no-pager"/> | |
101 | <xi:include href="standard-options.xml" xpointer="no-ask-password"/> | |
102 | ||
103 | <varlistentry> | |
104 | <term><option>--quiet</option></term> | |
105 | <term><option>-q</option></term> | |
106 | ||
107 | <listitem><para>Suppresses additional informational output while running.</para></listitem> | |
108 | </varlistentry> | |
109 | ||
110 | <varlistentry> | |
111 | <term><option>--discover</option></term> | |
112 | ||
113 | <listitem><para>Enable probing of the mount source. This switch is implied if a single argument is specified on | |
114 | the command line. If passed, additional metadata is read from the device to enhance the unit to create. For | |
115 | example, a descriptive string for the transient units is generated from the file system label and device | |
116 | model. Moreover if a removable block device (e.g. USB stick) is detected an automount unit instead of a regular | |
3f9a0a52 | 117 | mount unit is created, with a short idle timeout, in order to ensure the file-system is placed in a clean |
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118 | state quickly after each access.</para></listitem> |
119 | </varlistentry> | |
120 | ||
121 | <varlistentry> | |
122 | <term><option>--type=</option></term> | |
123 | <term><option>-t</option></term> | |
124 | ||
125 | <listitem><para>Specifies the file system type to mount (e.g. <literal>vfat</literal>, <literal>ext4</literal>, | |
126 | …). If omitted (or set to <literal>auto</literal>) the file system is determined automatically.</para></listitem> | |
127 | </varlistentry> | |
128 | ||
129 | <varlistentry> | |
130 | <term><option>--options=</option></term> | |
131 | <term><option>-o</option></term> | |
132 | ||
133 | <listitem><para>Additional mount options for the mount point.</para></listitem> | |
134 | </varlistentry> | |
135 | ||
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136 | <varlistentry> |
137 | <term><option>--owner=<replaceable>USER</replaceable></option></term> | |
138 | ||
139 | <listitem><para>Let the specified user <replaceable>USER</replaceable> own the mounted file system. | |
140 | This is done by appending <option>uid=</option> and <option>gid=</option> options to the list | |
141 | of mount options. Only certain file systems support this option.</para></listitem> | |
142 | </varlistentry> | |
143 | ||
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144 | <varlistentry> |
145 | <term><option>--fsck=</option></term> | |
146 | ||
147 | <listitem><para>Takes a boolean argument, defaults to on. Controls whether to run a file system check | |
148 | immediately before the mount operation. In the automount case (see <option>--automount=</option> below) the | |
149 | check will be run the moment the first access to the device is made, which might slightly delay the | |
150 | access.</para></listitem> | |
151 | </varlistentry> | |
152 | ||
153 | <varlistentry> | |
154 | <term><option>--description=</option></term> | |
155 | ||
156 | <listitem><para>Provide a description for the mount or automount unit. See <varname>Description=</varname> in | |
157 | <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>. | |
158 | </para></listitem> | |
159 | </varlistentry> | |
160 | ||
161 | <varlistentry> | |
162 | <term><option>--property=</option></term> | |
163 | <term><option>-p</option></term> | |
164 | ||
165 | <listitem><para>Sets a unit property for the mount unit that is created. This takes an assignment in the same | |
166 | format as <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>'s | |
167 | <command>set-property</command> command.</para> | |
168 | </listitem> | |
169 | </varlistentry> | |
170 | ||
171 | <varlistentry> | |
172 | <term><option>--automount=</option></term> | |
173 | ||
174 | <listitem><para>Takes a boolean argument. Controls whether to create an automount point or a regular mount | |
175 | point. If true an automount point is created that is backed by the actual file system at the time of first | |
176 | access. If false a plain mount point is created that is backed by the actual file system immediately. Automount | |
177 | points have the benefit that the file system stays unmounted and hence in clean state until it is first | |
178 | accessed. In automount mode the <option>--timeout-idle-sec=</option> switch (see below) may be used to ensure | |
179 | the mount point is unmounted automatically after the last access and an idle period passed.</para> | |
180 | ||
181 | <para>If this switch is not specified it defaults to false. If not specified and <option>--discover</option> is | |
182 | used (or only a single argument passed, which implies <option>--discover</option>, see above), and the file | |
183 | system block device is detected to be removable, it is set to true, in order to increase the chance that the | |
184 | file system is in a fully clean state if the device is unplugged abruptly.</para></listitem> | |
185 | </varlistentry> | |
186 | ||
187 | <varlistentry> | |
188 | <term><option>-A</option></term> | |
189 | ||
190 | <listitem><para>Equivalent to <option>--automount=yes</option>.</para></listitem> | |
191 | </varlistentry> | |
192 | ||
193 | <varlistentry> | |
194 | <term><option>--timeout-idle-sec=</option></term> | |
195 | ||
196 | <listitem><para>Takes a time value that controls the idle timeout in automount mode. If set to | |
197 | <literal>infinity</literal> (the default) no automatic unmounts are done. Otherwise the file system backing the | |
198 | automount point is detached after the last access and the idle timeout passed. See | |
199 | <citerefentry><refentrytitle>systemd.time</refentrytitle><manvolnum>7</manvolnum></citerefentry> for details on | |
200 | the time syntax supported. This option has no effect if only a regular mount is established, and automounting | |
201 | is not used.</para> | |
202 | ||
203 | <para>Note that if <option>--discover</option> is used (or only a single argument passed, which implies | |
204 | <option>--discover</option>, see above), and the file system block device is detected to be removable, | |
205 | <option>--timeout-idle-sec=1s</option> is implied.</para></listitem> | |
206 | </varlistentry> | |
207 | ||
208 | <varlistentry> | |
209 | <term><option>--automount-property=</option></term> | |
210 | ||
211 | <listitem><para>Similar to <option>--property=</option>, but applies additional properties to the automount | |
212 | unit created, instead of the mount unit.</para></listitem> | |
213 | </varlistentry> | |
214 | ||
215 | <varlistentry> | |
216 | <term><option>--bind-device=</option></term> | |
217 | ||
218 | <listitem><para>Takes a boolean argument, defaults to off. This option only has an effect in automount mode, | |
219 | and controls whether the automount unit shall be bound to the backing device's lifetime. If enabled, the | |
220 | automount point will be removed automatically when the backing device vanishes. If disabled the automount point | |
221 | stays around, and subsequent accesses will block until backing device is replugged. This option has no effect | |
222 | in case of non-device mounts, such as network or virtual file system mounts.</para> | |
223 | ||
224 | <para>Note that if <option>--discover</option> is used (or only a single argument passed, which implies | |
225 | <option>--discover</option>, see above), and the file system block device is detected to be removable, this | |
226 | option is implied.</para></listitem> | |
227 | </varlistentry> | |
228 | ||
229 | <varlistentry> | |
230 | <term><option>--list</option></term> | |
231 | ||
232 | <listitem><para>Instead of establishing a mount or automount point, print a terse list of block devices | |
233 | containing file systems that may be mounted with <literal>systemd-mount</literal>, along with useful metadata | |
234 | such as labels, etc.</para></listitem> | |
235 | </varlistentry> | |
236 | ||
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237 | <varlistentry> |
238 | <term><option>-u</option></term> | |
cec2a20d | 239 | <term><option>--umount</option></term> |
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240 | |
241 | <listitem><para>Stop the mount and automount units corresponding to the specified mount points | |
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242 | <replaceable>WHERE</replaceable> or the devices <replaceable>WHAT</replaceable>. |
243 | <command>systemd-mount</command> with this option or <command>systemd-umount</command> can take multiple arguments | |
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244 | which can be mount points, devices, <filename>/etc/fstab</filename> style node names, or backing files |
245 | corresponding to loop devices, like | |
246 | <command>systemd-mount --umount /path/to/umount /dev/sda1 UUID=xxxxxx-xxxx LABEL=xxxxx /path/to/disk.img</command>. | |
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247 | Note that when <option>-H</option> or <option>-M</option> is specified, only absolute paths to mount points are |
248 | supported.</para></listitem> | |
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249 | </varlistentry> |
250 | ||
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251 | <varlistentry> |
252 | <term><option>-G</option></term> | |
253 | <term><option>--collect</option></term> | |
254 | ||
255 | <listitem><para>Unload the transient unit after it completed, even if it failed. Normally, without this option, | |
256 | all mount units that mount and failed are kept in memory until the user explicitly resets their failure state with | |
257 | <command>systemctl reset-failed</command> or an equivalent command. On the other hand, units that stopped | |
258 | successfully are unloaded immediately. If this option is turned on the "garbage collection" of units is more | |
1b2ad5d9 | 259 | aggressive, and unloads units regardless if they exited successfully or failed. This option is a shortcut for |
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260 | <command>--property=CollectMode=inactive-or-failed</command>, see the explanation for |
261 | <varname>CollectMode=</varname> in | |
262 | <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry> for further | |
263 | information.</para></listitem> | |
264 | </varlistentry> | |
265 | ||
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266 | <xi:include href="user-system-options.xml" xpointer="user" /> |
267 | <xi:include href="user-system-options.xml" xpointer="system" /> | |
268 | <xi:include href="user-system-options.xml" xpointer="host" /> | |
269 | <xi:include href="user-system-options.xml" xpointer="machine" /> | |
270 | ||
271 | <xi:include href="standard-options.xml" xpointer="help" /> | |
272 | <xi:include href="standard-options.xml" xpointer="version" /> | |
273 | </variablelist> | |
274 | ||
275 | </refsect1> | |
276 | ||
277 | <refsect1> | |
278 | <title>Exit status</title> | |
279 | ||
280 | <para>On success, 0 is returned, a non-zero failure | |
281 | code otherwise.</para> | |
282 | </refsect1> | |
283 | ||
284 | <refsect1> | |
285 | <title>The udev Database</title> | |
286 | ||
2dd67817 | 287 | <para>If <option>--discover</option> is used, <command>systemd-mount</command> honors a couple of additional udev |
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288 | properties of block devices:</para> |
289 | ||
290 | <variablelist class='udev-directives'> | |
291 | <varlistentry> | |
292 | <term><varname>SYSTEMD_MOUNT_OPTIONS=</varname></term> | |
293 | ||
294 | <listitem><para>The mount options to use, if <option>--options=</option> is not used.</para></listitem> | |
295 | </varlistentry> | |
296 | ||
297 | <varlistentry> | |
298 | <term><varname>SYSTEMD_MOUNT_WHERE=</varname></term> | |
299 | ||
300 | <listitem><para>The file system path to place the mount point at, instead of the automatically generated | |
301 | one.</para></listitem> | |
302 | </varlistentry> | |
303 | </variablelist> | |
304 | </refsect1> | |
305 | ||
306 | <refsect1> | |
307 | <title>See Also</title> | |
308 | <para> | |
309 | <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
98e9d710 | 310 | <citerefentry project='man-pages'><refentrytitle>mount</refentrytitle><manvolnum>8</manvolnum></citerefentry>, |
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311 | <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, |
312 | <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>, | |
313 | <citerefentry><refentrytitle>systemd.mount</refentrytitle><manvolnum>5</manvolnum></citerefentry>, | |
314 | <citerefentry><refentrytitle>systemd.automount</refentrytitle><manvolnum>5</manvolnum></citerefentry>, | |
315 | <citerefentry><refentrytitle>systemd-run</refentrytitle><manvolnum>1</manvolnum></citerefentry> | |
316 | </para> | |
317 | </refsect1> | |
318 | ||
319 | </refentry> |