man: do not recommend rescue.target for alt-↑

rescue.target does not work well, and we don't have a suitable emergency
shell unit that can be started on existing systems right now. So let's just
remove the recommendation for now.

Fixes #6451.

diff --git a/man/systemd.special.xml b/man/systemd.special.xml
index b31c087c7632c2bb7435d9b87120e3e591a8f3e0..8522ff07619f86458fe721b599eed9eecbad281a 100644 (file)
--- a/man/systemd.special.xml
+++ b/man/systemd.special.xml
@@ -329,9 +329,9 @@
         <term><filename>kbrequest.target</filename></term>
         <listitem>
           <para>systemd starts this target whenever Alt+ArrowUp is
-          pressed on the console. This is a good candidate to be
-          aliased (symlinked) to
-          <filename>rescue.target</filename>.</para>
+          pressed on the console. Note that any user with physical access
+          to the machine will be able to do this, without authentication,
+          so this should be used carefully.</para>
         </listitem>
       </varlistentry>
       <varlistentry>