<listitem><para>Start the unit
specified on the command line and its
- dependencies and stop all
- others.</para></listitem>
+ dependencies and stop all others. Note
+ that this works only on units where
+ <option>AllowIsolate=</option> is
+ enabled. See
+ <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ for details.</para></listitem>
</varlistentry>
<varlistentry>
<term><command>is-active [NAME...]</command></term>