From bc3c5e161978a16c205e5043120169ec76b5d19c Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Tue, 19 Jun 2018 14:33:59 +0200
Subject: man: systemd.offline-updates: Document system-update-pre.target usage

---
 man/systemd.offline-updates.xml | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'man/systemd.offline-updates.xml')

diff --git a/man/systemd.offline-updates.xml b/man/systemd.offline-updates.xml
index c11004c882..113d74a220 100644
--- a/man/systemd.offline-updates.xml
+++ b/man/systemd.offline-updates.xml
@@ -139,6 +139,17 @@
         <varname>After=system-update-pre.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>
 
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