Those are very close subjects that are a good fit for one section.
</refsect1>
<refsect1>
- <title>Implicit Dependencies</title>
+ <title>Automatic Dependencies</title>
- <para>The following dependencies are implicitly added:</para>
+ <refsect2>
+ <title>Implicit Dependencies</title>
- <itemizedlist>
- <listitem><para>If an automount unit is beneath another mount unit in the
- file system hierarchy, both a requirement and an ordering
- dependency between both units are created automatically.</para></listitem>
+ <para>The following dependencies are implicitly added:</para>
- <listitem><para>An implicit <varname>Before=</varname> dependency is created
- between an automount unit and the mount unit it activates.</para></listitem>
- </itemizedlist>
- </refsect1>
+ <itemizedlist>
+ <listitem><para>If an automount unit is beneath another mount unit in the
+ file system hierarchy, both a requirement and an ordering
+ dependency between both units are created automatically.</para></listitem>
- <refsect1>
- <title>Default Dependencies</title>
+ <listitem><para>An implicit <varname>Before=</varname> dependency is created
+ between an automount unit and the mount unit it activates.</para></listitem>
+ </itemizedlist>
+ </refsect2>
+
+ <refsect2>
+ <title>Default Dependencies</title>
- <para>The following dependencies are added unless <varname>DefaultDependencies=no</varname> is set:</para>
+
<para>The following dependencies are added unless <varname>DefaultDependencies=no</varname> is set:</para>
- <itemizedlist>
- <listitem><para>Automount units acquire automatic <varname>Before=</varname> and
- <varname>Conflicts=</varname> on <filename>umount.target</filename> in order to be stopped during
- shutdown.</para></listitem>
- </itemizedlist>
+ <itemizedlist>
+ <listitem><para>Automount units acquire automatic <varname>Before=</varname> and
+ <varname>Conflicts=</varname> on <filename>umount.target</filename> in order to be stopped during
+ shutdown.</para></listitem>
+ </itemizedlist>
+ </refsect2>
</refsect1>
<refsect1>
corresponding device generates a <literal>changed</literal> event.
Other units can use <varname>ReloadPropagatedFrom=</varname> to react
to that event</para>
-
</refsect1>
<refsect1>
- <title>Implicit Dependencies</title>
-
- <para>Many unit types automatically acquire dependencies on device
- units of devices they require. For example,
- <filename>.socket</filename> unit acquire dependencies on the
- device units of the network interface specified in
- <varname>BindToDevice=</varname>. Similar, swap and mount units
- acquire dependencies on the units encapsulating their backing
- block devices.</para>
- </refsect1>
+ <title>Automatic Dependencies</title>
- <refsect1>
- <title>Default Dependencies</title>
+ <refsect2>
+ <title>Implicit Dependencies</title>
+
+ <para>Many unit types automatically acquire dependencies on device
+ units of devices they require. For example,
+ <filename>.socket</filename> unit acquire dependencies on the
+ device units of the network interface specified in
+ <varname>BindToDevice=</varname>. Similar, swap and mount units
+ acquire dependencies on the units encapsulating their backing
+ block devices.</para>
+ </refsect2>
+
+ <refsect2>
+ <title>Default Dependencies</title>
- <para>There are no default dependencies for device units.</para>
+ <para>There are no default dependencies for device units.</para>
+ </refsect2>
</refsect1>
<refsect1>
</refsect1>
<refsect1>
- <title>Implicit Dependencies</title>
-
- <para>The following dependencies are implicitly added:</para>
-
- <itemizedlist>
- <listitem><para>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.</para></listitem>
-
- <listitem><para>Block device backed file systems automatically gain
- <varname>BindsTo=</varname> and <varname>After=</varname> type
- dependencies on the device unit encapsulating the block
- device (see below).</para></listitem>
-
- <listitem><para>If traditional file system quota is enabled for a mount
- unit, automatic <varname>Wants=</varname> and
- <varname>Before=</varname> dependencies on
- <filename>systemd-quotacheck.service</filename> and
- <filename>quotaon.service</filename> are added.</para></listitem>
-
- <listitem><para>Additional implicit dependencies may be added as result of
- execution and resource control parameters as documented in
- <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>
- and
- <citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
- </para></listitem>
- </itemizedlist>
- </refsect1>
+ <title>Automatic Dependencies</title>
+
+ <refsect2>
+ <title>Implicit Dependencies</title>
+
+ <para>The following dependencies are implicitly added:</para>
+
+ <itemizedlist>
+ <listitem><para>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.</para></listitem>
+
+ <listitem><para>Block device backed file systems automatically gain
+ <varname>BindsTo=</varname> and <varname>After=</varname> type
+ dependencies on the device unit encapsulating the block
+ device (see below).</para></listitem>
+
+ <listitem><para>If traditional file system quota is enabled for a mount
+ unit, automatic <varname>Wants=</varname> and
+ <varname>Before=</varname> dependencies on
+ <filename>systemd-quotacheck.service</filename> and
+ <filename>quotaon.service</filename> are added.</para></listitem>
+
+ <listitem><para>Additional implicit dependencies may be added as result of
+ execution and resource control parameters as documented in
+ <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ and
+ <citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
+ </para></listitem>
+ </itemizedlist>
+ </refsect2>
- <refsect1>
- <title>Default Dependencies</title>
+ <refsect2>
+ <title>Default Dependencies</title>
- <para>The following dependencies are added unless <varname>DefaultDependencies=no</varname> is set:</para>
+
<para>The following dependencies are added unless <varname>DefaultDependencies=no</varname> is set:</para>
- <itemizedlist>
- <listitem><para>All mount units acquire automatic <varname>Before=</varname> and <varname>Conflicts=</varname> on
- <filename>umount.target</filename> in order to be stopped during shutdown.</para></listitem>
+ <itemizedlist>
+
<listitem><para>All mount units acquire automatic <varname>Before=</varname> and <varname>Conflicts=</varname> on
+ <filename>umount.target</filename> in order to be stopped during shutdown.</para></listitem>
- <listitem><para>Mount units referring to local file systems automatically gain
- an <varname>After=</varname> dependency on <filename>local-fs-pre.target</filename>.</para></listitem>
+
<listitem><para>Mount units referring to local file systems automatically gain
+ an <varname>After=</varname> dependency on <filename>local-fs-pre.target</filename>.</para></listitem>
- <listitem><para>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.</para></listitem>
- </itemizedlist>
+
<listitem><para>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.</para></listitem>
+ </itemizedlist>
- <para>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.</para>
+ <para>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.</para>
+ </refsect2>
</refsect1>
<refsect1>
</refsect1>
<refsect1>
- <title>Implicit Dependencies</title>
+ <title>Automatic Dependencies</title>
- <para>The following dependencies are implicitly added:</para>
+ <refsect2>
+ <title>Implicit Dependencies</title>
- <itemizedlist>
- <listitem><para>If a path unit is beneath another mount unit in the file
- system hierarchy, both a requirement and an ordering dependency
- between both units are created automatically.</para></listitem>
+ <para>The following dependencies are implicitly added:</para>
- <listitem><para>An implicit <varname>Before=</varname> dependency is added
- between a path unit and the unit it is supposed to activate.</para></listitem>
- </itemizedlist>
- </refsect1>
+ <itemizedlist>
+ <listitem><para>If a path unit is beneath another mount unit in the file
+ system hierarchy, both a requirement and an ordering dependency
+ between both units are created automatically.</para></listitem>
- <refsect1>
- <title>Default Dependencies</title>
+ <listitem><para>An implicit <varname>Before=</varname> dependency is added
+ between a path unit and the unit it is supposed to activate.</para></listitem>
+ </itemizedlist>
+ </refsect2>
+
+ <refsect2>
+ <title>Default Dependencies</title>
- <para>The following dependencies are added unless <varname>DefaultDependencies=no</varname> is set:</para>
+
<para>The following dependencies are added unless <varname>DefaultDependencies=no</varname> is set:</para>
- <itemizedlist>
- <listitem><para>Path units will automatically have dependencies of type <varname>Before=</varname> on
- <filename>paths.target</filename>,
- dependencies of type <varname>After=</varname> and <varname>Requires=</varname> on
- <filename>sysinit.target</filename>, and have dependencies of type <varname>Conflicts=</varname> and
- <varname>Before=</varname> on <filename>shutdown.target</filename>. These ensure that path units are terminated
- cleanly prior to system shutdown. Only path units involved with early boot or late system shutdown should
- disable <varname>DefaultDependencies=</varname> option.</para></listitem>
- </itemizedlist>
+ <itemizedlist>
+
<listitem><para>Path units will automatically have dependencies of type <varname>Before=</varname> on
+ <filename>paths.target</filename>,
+ dependencies of type <varname>After=</varname> and <varname>Requires=</varname> on
+ <filename>sysinit.target</filename>, and have dependencies of type <varname>Conflicts=</varname> and
+ <varname>Before=</varname> on <filename>shutdown.target</filename>. These ensure that path units are terminated
+ cleanly prior to system shutdown. Only path units involved with early boot or late system shutdown should
+ disable <varname>DefaultDependencies=</varname> option.</para></listitem>
+ </itemizedlist>
- <para></para>
+ <para></para>
+ </refsect2>
</refsect1>
<refsect1>
</refsect1>
<refsect1>
- <title>Implicit Dependencies</title>
-
- <para>Implicit dependencies may be added as result of
- resource control parameters as documented in
- <citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
- </refsect1>
-
- <refsect1>
- <title>Default Dependencies</title>
-
- <para>The following dependencies are added unless
- <varname>DefaultDependencies=no</varname> is set:</para>
-
- <itemizedlist>
- <listitem><para>Scope units will automatically have dependencies of
- type <varname>Conflicts=</varname> and
- <varname>Before=</varname> on
- <filename>shutdown.target</filename>. These ensure
- that scope units are removed prior to system
- shutdown. Only scope units involved with early boot or
- late system shutdown should disable
- <varname>DefaultDependencies=</varname> option.</para></listitem>
- </itemizedlist>
+ <title>Automatic Dependencies</title>
+
+ <refsect2>
+ <title>Implicit Dependencies</title>
+
+ <para>Implicit dependencies may be added as result of
+ resource control parameters as documented in
+ <citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
+ </refsect2>
+
+ <refsect2>
+ <title>Default Dependencies</title>
+
+ <para>The following dependencies are added unless
+ <varname>DefaultDependencies=no</varname> is set:</para>
+
+ <itemizedlist>
+ <listitem><para>Scope units will automatically have dependencies of
+ type <varname>Conflicts=</varname> and
+ <varname>Before=</varname> on
+ <filename>shutdown.target</filename>. These ensure
+ that scope units are removed prior to system
+ shutdown. Only scope units involved with early boot or
+ late system shutdown should disable
+ <varname>DefaultDependencies=</varname> option.</para></listitem>
+ </itemizedlist>
+ </refsect2>
</refsect1>
<refsect1>
</refsect1>
<refsect1>
- <title>Implicit Dependencies</title>
-
- <para>The following dependencies are implicitly added:</para>
-
- <itemizedlist>
- <listitem><para>Services with <varname>Type=dbus</varname> set automatically
- acquire dependencies of type <varname>Requires=</varname> and
- <varname>After=</varname> on
- <filename>dbus.socket</filename>.</para></listitem>
-
- <listitem><para>Socket activated services are automatically ordered after
- their activating <filename>.socket</filename> units via an
- automatic <varname>After=</varname> dependency.
- Services also pull in all <filename>.socket</filename> units
- listed in <varname>Sockets=</varname> via automatic
- <varname>Wants=</varname> and <varname>After=</varname> dependencies.</para></listitem>
- </itemizedlist>
-
- <para>Additional implicit dependencies may be added as result of
- execution and resource control parameters as documented in
- <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>
- and
- <citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
- </refsect1>
-
- <refsect1>
- <title>Default Dependencies</title>
-
- <para>The following dependencies are added unless <varname>DefaultDependencies=no</varname> is set:</para>
-
- <itemizedlist>
- <listitem><para>Service units will have dependencies of type <varname>Requires=</varname> and
- <varname>After=</varname> on <filename>sysinit.target</filename>, a dependency of type <varname>After=</varname> on
- <filename>basic.target</filename> as well as dependencies of type <varname>Conflicts=</varname> and
- <varname>Before=</varname> on <filename>shutdown.target</filename>. These ensure that normal service units pull in
- basic system initialization, and are terminated cleanly prior to system shutdown. Only services involved with early
- boot or late system shutdown should disable this option.</para></listitem>
-
- <listitem><para>Instanced service units (i.e. service units with an <literal>@</literal> in their name) are assigned by
- default a per-template slice unit (see
- <citerefentry><refentrytitle>systemd.slice</refentrytitle><manvolnum>5</manvolnum></citerefentry>), named after the
- template unit, containing all instances of the specific template. This slice is normally stopped at shutdown,
- together with all template instances. If that is not desired, set <varname>DefaultDependencies=no</varname> in the
- template unit, and either define your own per-template slice unit file that also sets
- <varname>DefaultDependencies=no</varname>, or set <varname>Slice=system.slice</varname> (or another suitable slice)
- in the template unit. Also see
- <citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
- </para></listitem>
- </itemizedlist>
+ <title>Automatic Dependencies</title>
+
+ <refsect2>
+ <title>Implicit Dependencies</title>
+
+ <para>The following dependencies are implicitly added:</para>
+
+ <itemizedlist>
+ <listitem><para>Services with <varname>Type=dbus</varname> set automatically
+ acquire dependencies of type <varname>Requires=</varname> and
+ <varname>After=</varname> on
+ <filename>dbus.socket</filename>.</para></listitem>
+
+ <listitem><para>Socket activated services are automatically ordered after
+ their activating <filename>.socket</filename> units via an
+ automatic <varname>After=</varname> dependency.
+ Services also pull in all <filename>.socket</filename> units
+ listed in <varname>Sockets=</varname> via automatic
+ <varname>Wants=</varname> and <varname>After=</varname> dependencies.</para></listitem>
+ </itemizedlist>
+
+ <para>Additional implicit dependencies may be added as result of
+ execution and resource control parameters as documented in
+ <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ and
+ <citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
+ </refsect2>
+
+ <refsect2>
+ <title>Default Dependencies</title>
+
+ <para>The following dependencies are added unless <varname>DefaultDependencies=no</varname> is set:</para>
+
+ <itemizedlist>
+ <listitem><para>Service units will have dependencies of type <varname>Requires=</varname> and
+ <varname>After=</varname> on <filename>sysinit.target</filename>, a dependency of type <varname>After=</varname> on
+ <filename>basic.target</filename> as well as dependencies of type <varname>Conflicts=</varname> and
+ <varname>Before=</varname> on <filename>shutdown.target</filename>. These ensure that normal service units pull in
+ basic system initialization, and are terminated cleanly prior to system shutdown. Only services involved with early
+ boot or late system shutdown should disable this option.</para></listitem>
+
+ <listitem><para>Instanced service units (i.e. service units with an <literal>@</literal> in their name) are assigned by
+ default a per-template slice unit (see
+ <citerefentry><refentrytitle>systemd.slice</refentrytitle><manvolnum>5</manvolnum></citerefentry>), named after the
+ template unit, containing all instances of the specific template. This slice is normally stopped at shutdown,
+ together with all template instances. If that is not desired, set <varname>DefaultDependencies=no</varname> in the
+ template unit, and either define your own per-template slice unit file that also sets
+ <varname>DefaultDependencies=no</varname>, or set <varname>Slice=system.slice</varname> (or another suitable slice)
+ in the template unit. Also see
+ <citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
+ </para></listitem>
+ </itemizedlist>
+ </refsect2>
</refsect1>
<refsect1>
</refsect1>
<refsect1>
- <title>Implicit Dependencies</title>
+ <title>Automatic Dependencies</title>
- <para>The following dependencies are implicitly added:</para>
+ <refsect2>
+ <title>Implicit Dependencies</title>
- <itemizedlist>
- <listitem><para>Slice units automatically gain dependencies of type
- <varname>After=</varname> and <varname>Requires=</varname> on
- their immediate parent slice unit.</para></listitem>
- </itemizedlist>
- </refsect1>
+ <para>The following dependencies are implicitly added:</para>
- <refsect1>
- <title>Default Dependencies</title>
+ <itemizedlist>
+ <listitem><para>Slice units automatically gain dependencies of type
+ <varname>After=</varname> and <varname>Requires=</varname> on
+ their immediate parent slice unit.</para></listitem>
+ </itemizedlist>
+ </refsect2>
+
+ <refsect2>
+ <title>Default Dependencies</title>
- <para>The following dependencies are added unless <varname>DefaultDependencies=no</varname> is set:</para>
+
<para>The following dependencies are added unless <varname>DefaultDependencies=no</varname> is set:</para>
- <itemizedlist>
- <listitem><para>Slice units will automatically have dependencies of type <varname>Conflicts=</varname> and
- <varname>Before=</varname> on
- <filename>shutdown.target</filename>. These ensure that slice units are removed prior to system shutdown.
- Only slice units involved with late system shutdown should disable
- <varname>DefaultDependencies=</varname> option.</para></listitem>
- </itemizedlist>
+ <itemizedlist>
+ <listitem><para>Slice units will automatically have dependencies of type <varname>Conflicts=</varname> and
+ <varname>Before=</varname> on
+ <filename>shutdown.target</filename>. These ensure that slice units are removed prior to system shutdown.
+ Only slice units involved with late system shutdown should disable
+ <varname>DefaultDependencies=</varname> option.</para></listitem>
+ </itemizedlist>
+ </refsect2>
</refsect1>
<refsect1>
</refsect1>
<refsect1>
- <title>Implicit Dependencies</title>
-
- <para>The following dependencies are implicitly added:</para>
-
- <itemizedlist>
- <listitem><para>Socket units automatically gain a <varname>Before=</varname>
- dependency on the service units they activate.</para></listitem>
-
- <listitem><para>Socket units referring to file system paths (such as AF_UNIX
- sockets or FIFOs) implicitly gain <varname>Requires=</varname> and
- <varname>After=</varname> dependencies on all mount units
- necessary to access those paths.</para></listitem>
-
- <listitem><para>Socket units using the <varname>BindToDevice=</varname>
- setting automatically gain a <varname>BindsTo=</varname> and
- <varname>After=</varname> dependency on the device unit
- encapsulating the specified network interface.</para></listitem>
- </itemizedlist>
-
- <para>Additional implicit dependencies may be added as result of
- execution and resource control parameters as documented in
- <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>
- and
- <citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
- </refsect1>
-
- <refsect1>
- <title>Default Dependencies</title>
-
- <para>The following dependencies are added unless
- <varname>DefaultDependencies=no</varname> is set:</para>
-
- <itemizedlist>
- <listitem><para>Socket units automatically gain a
- <varname>Before=</varname> dependency on
- <filename>sockets.target</filename>.</para></listitem>
-
- <listitem><para>Socket units automatically gain a pair of
- <varname>After=</varname> and <varname>Requires=</varname>
- dependency on <filename>sysinit.target</filename>, and a pair of
- <varname>Before=</varname> and <varname>Conflicts=</varname>
- dependencies on <filename>shutdown.target</filename>. These
- dependencies ensure that the socket unit is started before normal
- services at boot, and is stopped on shutdown. Only sockets
- involved with early boot or late system shutdown should disable
- <varname>DefaultDependencies=</varname> option.</para></listitem>
- </itemizedlist>
+ <title>Automatic Dependencies</title>
+
+ <refsect2>
+ <title>Implicit Dependencies</title>
+
+ <para>The following dependencies are implicitly added:</para>
+
+ <itemizedlist>
+ <listitem><para>Socket units automatically gain a <varname>Before=</varname>
+ dependency on the service units they activate.</para></listitem>
+
+ <listitem><para>Socket units referring to file system paths (such as AF_UNIX
+ sockets or FIFOs) implicitly gain <varname>Requires=</varname> and
+ <varname>After=</varname> dependencies on all mount units
+ necessary to access those paths.</para></listitem>
+
+ <listitem><para>Socket units using the <varname>BindToDevice=</varname>
+ setting automatically gain a <varname>BindsTo=</varname> and
+ <varname>After=</varname> dependency on the device unit
+ encapsulating the specified network interface.</para></listitem>
+ </itemizedlist>
+
+ <para>Additional implicit dependencies may be added as result of
+ execution and resource control parameters as documented in
+ <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ and
+ <citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
+ </refsect2>
+
+ <refsect2>
+ <title>Default Dependencies</title>
+
+ <para>The following dependencies are added unless
+ <varname>DefaultDependencies=no</varname> is set:</para>
+
+ <itemizedlist>
+ <listitem><para>Socket units automatically gain a
+ <varname>Before=</varname> dependency on
+ <filename>sockets.target</filename>.</para></listitem>
+
+ <listitem><para>Socket units automatically gain a pair of
+ <varname>After=</varname> and <varname>Requires=</varname>
+ dependency on <filename>sysinit.target</filename>, and a pair of
+ <varname>Before=</varname> and <varname>Conflicts=</varname>
+ dependencies on <filename>shutdown.target</filename>. These
+ dependencies ensure that the socket unit is started before normal
+ services at boot, and is stopped on shutdown. Only sockets
+ involved with early boot or late system shutdown should disable
+ <varname>DefaultDependencies=</varname> option.</para></listitem>
+ </itemizedlist>
+ </refsect2>
</refsect1>
<refsect1>
</refsect1>
<refsect1>
- <title>Implicit Dependencies</title>
-
- <para>The following dependencies are implicitly added:</para>
-
- <itemizedlist>
- <listitem><para>All swap units automatically get the
- <varname>BindsTo=</varname> and <varname>After=</varname>
- dependencies on the device units or the mount units of the files
- they are activated from.</para></listitem>
- </itemizedlist>
-
- <para>Additional implicit dependencies may be added as result of
- execution and resource control parameters as documented in
- <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>
- and
- <citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
- </refsect1>
-
- <refsect1>
- <title>Default Dependencies</title>
-
- <para>The following dependencies are added unless <varname>DefaultDependencies=no</varname> is set:</para>
-
- <itemizedlist>
- <listitem><para>Swap units automatically acquire a <varname>Conflicts=</varname> and a
- <varname>Before=</varname> dependency on <filename>umount.target</filename> so that they are deactivated at
- shutdown as well as a <varname>Before=swap.target</varname> dependency.</para></listitem>
- </itemizedlist>
+ <title>Automatic Dependencies</title>
+
+ <refsect2>
+ <title>Implicit Dependencies</title>
+
+ <para>The following dependencies are implicitly added:</para>
+
+ <itemizedlist>
+ <listitem><para>All swap units automatically get the
+ <varname>BindsTo=</varname> and <varname>After=</varname>
+ dependencies on the device units or the mount units of the files
+ they are activated from.</para></listitem>
+ </itemizedlist>
+
+ <para>Additional implicit dependencies may be added as result of
+ execution and resource control parameters as documented in
+ <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ and
+ <citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
+ </refsect2>
+
+ <refsect2>
+ <title>Default Dependencies</title>
+
+ <para>The following dependencies are added unless <varname>DefaultDependencies=no</varname> is set:</para>
+
+ <itemizedlist>
+ <listitem><para>Swap units automatically acquire a <varname>Conflicts=</varname> and a
+ <varname>Before=</varname> dependency on <filename>umount.target</filename> so that they are deactivated at
+ shutdown as well as a <varname>Before=swap.target</varname> dependency.</para></listitem>
+ </itemizedlist>
+ </refsect2>
</refsect1>
<refsect1>
</refsect1>
<refsect1>
- <title>Implicit Dependencies</title>
-
- <para>There are no implicit dependencies for target units.</para>
- </refsect1>
-
- <refsect1>
- <title>Default Dependencies</title>
-
- <para>The following dependencies are added unless
- <varname>DefaultDependencies=no</varname> is set:</para>
-
- <itemizedlist>
- <listitem><para>Target units will automatically complement all
- configured dependencies of type <varname>Wants=</varname> or
- <varname>Requires=</varname> with dependencies of type
- <varname>After=</varname> unless <varname>DefaultDependencies=no</varname>
- is set in the specified units. Note that <varname>Wants=</varname> or
- <varname>Requires=</varname> must be defined in the target unit itself — if
- you for example define <varname>Wants=</varname>some.target in
- some.service, the automatic ordering will not be added.</para></listitem>
-
- <listitem><para>Target units automatically gain <varname>Conflicts=</varname>
- dependency against <filename>shutdown.target</filename>.</para></listitem>
- </itemizedlist>
+ <title>Automatic Dependencies</title>
+
+ <refsect2>
+ <title>Implicit Dependencies</title>
+
+ <para>There are no implicit dependencies for target units.</para>
+ </refsect2>
+
+ <refsect2>
+ <title>Default Dependencies</title>
+
+ <para>The following dependencies are added unless
+ <varname>DefaultDependencies=no</varname> is set:</para>
+
+ <itemizedlist>
+ <listitem><para>Target units will automatically complement all
+ configured dependencies of type <varname>Wants=</varname> or
+ <varname>Requires=</varname> with dependencies of type
+ <varname>After=</varname> unless <varname>DefaultDependencies=no</varname>
+ is set in the specified units. Note that <varname>Wants=</varname> or
+ <varname>Requires=</varname> must be defined in the target unit itself — if
+ you for example define <varname>Wants=</varname>some.target in
+ some.service, the automatic ordering will not be added.</para></listitem>
+
+ <listitem><para>Target units automatically gain <varname>Conflicts=</varname>
+ dependency against <filename>shutdown.target</filename>.</para></listitem>
+ </itemizedlist>
+ </refsect2>
</refsect1>
<refsect1>
</refsect1>
<refsect1>
- <title>Default Dependencies</title>
+ <title>Automatic Dependencies</title>
- <para>The following dependencies are added unless <varname>DefaultDependencies=no</varname> is set:</para>
+ <refsect2>
+ <title>Implicit Dependencies</title>
- <itemizedlist>
- <listitem><para>Timer units will automatically have dependencies of type <varname>Requires=</varname> and
- <varname>After=</varname> on <filename>sysinit.target</filename>, a dependency of type <varname>Before=</varname>
- on <filename>timers.target</filename>, as well as <varname>Conflicts=</varname> and <varname>Before=</varname> on
- <filename>shutdown.target</filename> to ensure that they are stopped cleanly prior to system shutdown. Only timer
- units involved with early boot or late system shutdown should disable the
- <varname>DefaultDependencies=</varname> option.</para></listitem>
-
- <listitem><para>Timer units
- with at least one <varname>OnCalendar=</varname> directive will have an additional <varname>After=</varname>
- dependency on <filename>time-sync.target</filename> to avoid being started before the system clock has been
- correctly set.</para></listitem>
- </itemizedlist>
+ <para>There are no implicit dependencies for timer units.</para>
+ </refsect2>
+
+ <refsect2>
+ <title>Default Dependencies</title>
+
+ <para>The following dependencies are added unless <varname>DefaultDependencies=no</varname> is set:</para>
+
+ <itemizedlist>
+ <listitem><para>Timer units will automatically have dependencies of type <varname>Requires=</varname> and
+ <varname>After=</varname> on <filename>sysinit.target</filename>, a dependency of type <varname>Before=</varname>
+ on <filename>timers.target</filename>, as well as <varname>Conflicts=</varname> and <varname>Before=</varname> on
+ <filename>shutdown.target</filename> to ensure that they are stopped cleanly prior to system shutdown. Only timer
+ units involved with early boot or late system shutdown should disable the
+ <varname>DefaultDependencies=</varname> option.</para></listitem>
+
+ <listitem><para>Timer units
+ with at least one <varname>OnCalendar=</varname> directive will have an additional <varname>After=</varname>
+ dependency on <filename>time-sync.target</filename> to avoid being started before the system clock has been
+ correctly set.</para></listitem>
+ </itemizedlist>
+ </refsect2>
</refsect1>
<refsect1>
</refsect1>
<refsect1>
- <title>Implicit Dependencies</title>
-
- <para>A number of unit dependencies are implicitly established,
- depending on unit type and unit configuration. These implicit
- dependencies can make unit configuration file cleaner. For the
- implicit dependencies in each unit type, please refer to
- section "Implicit Dependencies" in respective man pages.</para>
-
- <para>For example, service units with <varname>Type=dbus</varname>
- automatically acquire dependencies of type <varname>Requires=</varname>
- and <varname>After=</varname> on <filename>dbus.socket</filename>. See
- <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>
- for details.</para>
- </refsect1>
-
- <refsect1>
- <title>Default Dependencies</title>
-
- <para>Default dependencies are similar to implicit dependencies,
- but can be turned on and off by setting
- <varname>DefaultDependencies=</varname> to <varname>yes</varname>
- (the default) and <varname>no</varname>, while implicit dependencies
- are always in effect. See section "Default Dependencies" in respective
- man pages for the effect of enabling
- <varname>DefaultDependencies=</varname> in each unit types.</para>
-
- <para>For example, target units will complement all configured
- dependencies of type <varname>Wants=</varname> or
- <varname>Requires=</varname> with dependencies of type
- <varname>After=</varname> unless <varname>DefaultDependencies=no</varname>
- is set in the specified units. See
- <citerefentry><refentrytitle>systemd.target</refentrytitle><manvolnum>5</manvolnum></citerefentry>
- for details. Note that this behavior can be turned off by setting
- <varname>DefaultDependencies=no</varname>.</para>
+ <title>Automatic dependencies</title>
+
+ <refsect2>
+ <title>Implicit Dependencies</title>
+
+ <para>A number of unit dependencies are implicitly established, depending on unit type and
+ unit configuration. These implicit dependencies can make unit configuration file cleaner. For
+ the implicit dependencies in each unit type, please refer to section "Implicit Dependencies"
+ in respective man pages.</para>
+
+ <para>For example, service units with <varname>Type=dbus</varname> automatically acquire
+ dependencies of type <varname>Requires=</varname> and <varname>After=</varname> on
+ <filename>dbus.socket</filename>. See
+ <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ for details.</para>
+ </refsect2>
+
+ <refsect2>
+ <title>Default Dependencies</title>
+
+ <para>Default dependencies are similar to implicit dependencies, but can be turned on and off
+ by setting <varname>DefaultDependencies=</varname> to <varname>yes</varname> (the default) and
+ <varname>no</varname>, while implicit dependencies are always in effect. See section "Default
+ Dependencies" in respective man pages for the effect of enabling
+ <varname>DefaultDependencies=</varname> in each unit types.</para>
+
+ <para>For example, target units will complement all configured dependencies of type
+ <varname>Wants=</varname> or <varname>Requires=</varname> with dependencies of type
+ <varname>After=</varname> unless <varname>DefaultDependencies=no</varname> is set in the
+ specified units. See
+ <citerefentry><refentrytitle>systemd.target</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ for details. Note that this behavior can be turned off by setting
+ <varname>DefaultDependencies=no</varname>.</para>
+ </refsect2>
</refsect1>
<refsect1>
projects / thirdparty / systemd.git / commitdiff
