fix a floppy handling bug in grub-install.

util/grub-install.in

@@ -80,6 +80,8 @@ convert () {
 				  -e 's%/part[0-9]*$%/disc%'`
 	tmp_part=`echo "$1" | sed -e 's%.*/[sh]d[a-z]\([0-9]*\)$%\1%' \
 				  -e 's%.*/\(disc\|part\([0-9]*\)\)$%\2%'`
+	# floppy drives don't have partitions:
+	tmp_part=`echo "$tmp_part" | sed -e 's%.*/fd[0-9]*%%'`
 	;;
     gnu*)
 	tmp_disk=`echo "$1" | sed 's%\([sh]d[0-9]*\).*%\1%'`