+ <term><option>key-slot=</option></term>
+
+ <listitem><para>Specifies the key slot to
+ compare the passphrase or key against.
+ If the key slot does not match the given
+ passphrase or key, but another would, the
+ setup of the device will fail regardless.
+ This option implies <option>luks</option>. See
+ <citerefentry><refentrytitle>cryptsetup</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+ for possible values. The default is to try
+ all key slots in sequential order.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><option>luks</option></term>