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man: be more explicit that Type=oneshot services are not "active" after starting

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Fixes: #13000
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Lennart Poettering 2019-07-12 09:25:22 +02:00
parent b042dd687c
commit bfcb9d3a7d
1 changed files with 11 additions and 5 deletions
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16
man/systemd.service.xml
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@ -191,11 +191,17 @@
main process of the service. systemd will proceed with starting follow-up units as soon as the parent
process exits.</para></listitem>
<listitem><para>Behavior of <option>oneshot</option> is similar to <option>simple</option>; however, the
service manager will consider the unit started after the main process exits. It will then start follow-up
units. <varname>RemainAfterExit=</varname> is particularly useful for this type of
service. <varname>Type=</varname><option>oneshot</option> is the implied default if neither
<varname>Type=</varname> nor <varname>ExecStart=</varname> are specified.</para></listitem>
<listitem><para>Behavior of <option>oneshot</option> is similar to <option>simple</option>;
however, the service manager will consider the unit up after the main process exits. It will then
start follow-up units. <varname>RemainAfterExit=</varname> is particularly useful for this type
of service. <varname>Type=</varname><option>oneshot</option> is the implied default if neither
<varname>Type=</varname> nor <varname>ExecStart=</varname> are specified. Note that if this
option is used without <varname>RemainAfterExit=</varname> the service will never enter
<literal>active</literal> unit state, but directly transition from <literal>activating</literal>
to <literal>deactivating</literal> or <literal>dead</literal> since no process is configured that
shall run continously. In particular this means that after a service of this type ran (and which
has <varname>RemainAfterExit=</varname> not set) it will not show up as started afterwards, but
as dead.</para></listitem>
<listitem><para>Behavior of <option>dbus</option> is similar to <option>simple</option>; however, it is
expected that the service acquires a name on the D-Bus bus, as configured by