Merge pull request #13194 from keszybz/chase-symlinks-testing

[thirdparty/systemd.git] / man / systemd.offline-updates.xml

diff --git a/man/systemd.offline-updates.xml b/man/systemd.offline-updates.xml
index c11004c88222848a263500e536eb9ae82f0146d0..06390669de5d6006ab60464ce045640c8ea93651 100644 (file)
--- a/man/systemd.offline-updates.xml
+++ b/man/systemd.offline-updates.xml
@@ -1,10 +1,7 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
-<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
-
-<!--
-  SPDX-License-Identifier: LGPL-2.1+
--->
+<!-- SPDX-License-Identifier: LGPL-2.1+ -->
 
 <refentry id="systemd.offline-updates">
   <refentryinfo>
@@ -134,11 +131,22 @@
       </listitem>
 
       <listitem>
-        <para>The update service should declare <varname>DefaultDependencies=false</varname>,
+        <para>The update service should declare <varname>DefaultDependencies=no</varname>,
         <varname>Requires=sysinit.target</varname>, <varname>After=sysinit.target</varname>,
-        <varname>After=system-update-pre.target</varname>
+        <varname>After=system-update-pre.target</varname>, <varname>Before=system-update.target</varname>
         and explicitly pull in any other services it requires.</para>
       </listitem>
+
+      <listitem>
+        <para>It may be desirable to always run an auxiliary unit when booting
+        into offline-updates mode, which itself does not install updates. To
+        do this create a .service file with
+        <varname>Wants=system-update-pre.target</varname> and
+        <varname>Before=system-update-pre.target</varname> and add a symlink
+        to that file under
+        <filename noindex='true'>/usr/lib/systemd/system-update.target.wants</filename>
+        .</para>
+      </listitem>
     </orderedlist>
   </refsect1>