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man: clarify that DefaultDependencies= is in the [Unit] section

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This hopefully reduces confusion resulting in issues like #2992.
This commit is contained in:
Lennart Poettering
2016-04-12 13:43:33 +02:00
parent d2120590ff
commit cc4e4df49f
9 changed files with 55 additions and 94 deletions
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man/systemd.mount.xml
+11 -20
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@@ -128,26 +128,17 @@
<filename>systemd-quotacheck.service</filename> and
<filename>quotaon.service</filename> are added.</para>
<para>For mount units with
<varname>DefaultDependencies=yes</varname> (the default) a couple
additional dependencies are added. Mount units referring to local
file systems automatically gain an <varname>After=</varname>
dependency on <filename>local-fs-pre.target</filename>. Network
mount units automatically acquire <varname>After=</varname>
dependencies on <filename>remote-fs-pre.target</filename>,
<filename>network.target</filename> and
<filename>network-online.target</filename>. Towards the latter a
<varname>Wants=</varname> 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 <option>_netdev</option> 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 <varname>Before=</varname> and
<varname>Conflicts=</varname> on
<filename>umount.target</filename> in order to be stopped
during shutdown.</para>
<para>For mount units with <varname>DefaultDependencies=yes</varname> in the <literal>[Unit]</literal> section (the
default) a couple additional dependencies are added. Mount units referring to local file systems automatically gain
an <varname>After=</varname> dependency on <filename>local-fs-pre.target</filename>. Network mount units
automatically acquire <varname>After=</varname> dependencies on <filename>remote-fs-pre.target</filename>,
<filename>network.target</filename> and <filename>network-online.target</filename>. Towards the latter a
<varname>Wants=</varname> 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 <option>_netdev</option> 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 <varname>Before=</varname> and <varname>Conflicts=</varname> on
<filename>umount.target</filename> in order to be stopped during shutdown.</para>
<para>Additional implicit dependencies may be added as result of
execution and resource control parameters as documented in