<varlistentry>
<term><option>noauto</option></term>
- <listitem><para>This device will not be automatically unlocked
- on boot.</para></listitem>
+ <listitem><para>This device will not be added to <filename>cryptsetup.target</filename>.
+ This means that it will not be automatically unlocked on boot, unless something else pulls
+ it in. In particular, if the device is used for a mount point, it'll be unlocked
+ automatically during boot, unless the mount point itself is also disabled with
+ <option>noauto</option>.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>nofail</option></term>
- <listitem><para>The system will not wait for the device to
- show up and be unlocked at boot, and not fail the boot if it
- does not show up.</para></listitem>
+ <listitem><para>This device will not be a hard dependency of
+ <filename>cryptsetup.target</filename>. It'll be still pulled in and started, but the system
+ will not wait for the device to show up and be unlocked, and boot will not fail if this is
+ unsuccessful. Note that other units that depend on the unlocked device may still fail. In
+ particular, if the device is used for a mount point, the mount point itself is also needs to
+ have <option>noauto</option> option, or the boot will fail if the device is not unlocked
+ successfully.</para></listitem>
</varlistentry>
<varlistentry>