+
+ <para>Unit file may include a [Install] section, which
+ carries installation information for the unit. This
+ section is not interpreted by
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ during runtime. It is used exclusively by the
+ <citerefentry><refentrytitle>systemd-install</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ during installation of a unit:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><varname>Alias=</varname></term>
+
+ <listitem><para>Additional names this
+ unit shall be installed under. The
+ names listed here must have the same
+ suffix (i.e. type) as the unit file
+ name. This option may be specified
+ more than once, in which case all
+ listed names are used. At installation
+ time
+ <command>systemd-install</command>
+ will create symlinks from these names
+ to the unit file name. Note that this
+ is different from the
+ <varname>Names=</varname> option from
+ the [Unit] section mentioned above:
+ The names from
+ <varname>Names=</varname> apply
+ unconditionally if the unit is
+ loaded. The names from
+ <varname>Alias=</varname> apply only
+ if the unit is actually installed with
+ the <command>systemd-install</command>
+ tool. Also, if systemd searches for a
+ unit, it will discover symlinked alias
+ names, but not names configured only
+ with <varname>Names=</varname>. It is
+ a common pattern to list a name in both
+ options. In this case, a unit will be
+ active under all names if installed,
+ but also if not installed but
+ requested
+ explicitly.</para></listitem>
+ </varlistentry>
+ </variablelist>
+