=item B<-o> B<options>
-Custom options passed to B<@PACKAGE@>(7). See its manpage for details. Options
-double-dashes (B<-->) can be omitted for B<lufs-@PACKAGE@fs>(7) or
-B<mount.captive>(8).
+Custom options passed to B<@PACKAGE@>(7) separated by comma (B<,>).
+See the B<@PACKAGE@>(7) manpage for details on options prefixed by
+double-dashes (B<-->) will be used for B<lufs-@PACKAGE@fs>(7) /
+B<mount.captive>(8). Options without double-dashes (B<-->) will be used for
+B<lufsmount>(1). You may be interested in these unprefixed options:
+=over
+
+=item B<uid>=B<500>
+
+Supply the B<UID> to be the user identification number owning all the files.
+
+=item B<gid>=B<500>
+
+Supply the B<GID> to be the group identification number owning all the files.
+
+=item B<fmask>=B<666>
+
+Octal mask to be OR-ed on file permissions (minimum file permissions).
+
+=item B<dmask>=B<777>
+
+Octal mask to be OR-ed on directory permissions (minimum directory
+permissions).
+
+=back
=back