<para><command>systemd-install</command> enables or
disables systemd units, or checks whether they are
- enabled.</para>
+ enabled, according to the installation suggestions
+ included in the unit files.</para>
<para>This command is useful to apply or undo the
installation instructions encoded in the <literal>[Install]</literal>
files in the configuration tree, but does not start
them. The latter equals starting them, but does not
necessarily require them to be enabled.</para>
+
+ <para>Note that while
+ <command>systemd-install</command> is the recommended
+ tool to create or remove symlinks in the systemd
+ configuration directory the administrator can also
+ create links there manually, which is particularly
+ useful to use configurations that deviate from the
+ installation suggestions included in the unit
+ files.</para>
</refsect1>
<refsect1>
systemd units, which later may be restored by
activating the saved snapshot unit. For more
information see
- <citerefentry><refentrytitle>systemd.automount</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para></listitem>
+ <citerefentry><refentrytitle>systemd.snapshot</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para></listitem>
<listitem><para>Timer units are useful for
triggering activation of other units based on