install: simplify symlink --root= logic

[elogind.git] / man / systemd.unit.xml

diff --git a/man/systemd.unit.xml b/man/systemd.unit.xml
index 157530be38a3deae624ccb6bb82660856167e935..b337bb42bcfc593d9b05f0fce3097b9737982ed5 100644 (file)
--- a/man/systemd.unit.xml
+++ b/man/systemd.unit.xml
@@ -139,10 +139,12 @@
                 <para>Unit files may contain additional options on top
                 of those listed here. If systemd encounters an unknown
                 option, it will write a warning log message but
-                continue loading the unit. If an option is prefixed
-                with <option>X-</option>, it is ignored completely by
-                systemd. Applications may use this to include
-                additional information in the unit files.</para>
+                continue loading the unit. If an option or section name
+                is prefixed with <option>X-</option>, it is ignored
+                completely by systemd. Options within an ignored
+                section do not need the prefix. Applications may use
+                this to include additional information in the unit
+                files.</para>
 
                 <para>Boolean arguments used in unit files can be
                 written in various formats. For positive settings the
@@ -1284,6 +1286,19 @@
                                 of unit names may be
                                 given.</para></listitem>
                         </varlistentry>
+
+                        <varlistentry>
+                                <term><varname>DefaultInstance=</varname></term>
+
+                                <listitem><para>In template unit files
+                                this specifies for which instance the
+                                unit shall be enabled if the template
+                                is enabled without any explicitly set
+                                instance. This option has no effect in
+                                non-template unit files. The specified
+                                string must be usable as instance
+                                identifier.</para></listitem>
+                        </varlistentry>
                 </variablelist>
 
                 <para>The following specifiers are interpreted in the