+# new grml2usb layout
+if [ -d "$MOUNT_POINT_"/boot/syslinux ] ; then
+ ISOLIN_PATH_="$MOUNT_POINT_/boot/syslinux"
+ test -d $ISOLIN_PATH_ || ISOLIN_PATH_="$MOUNT_POINT_"
+else # old layout
+ ISOLIN_PATH_="$DATA_PATH_/isolinux"
+ test -d $ISOLIN_PATH_ || ISOLIN_PATH_="$MOUNT_POINT_"
+fi
+
+# addons
+if [[ "$(find $MOUNT_POINT_ -maxdepth 3 -name memtest |head -n1)" != "" ]] ; then
+ ADDONS_PATH_="$(dirname $(find $MOUNT_POINT_ -maxdepth 3 -name memtest |head -n1))"
+fi