if $VTOY_PATH/tool/unsquashfs_64 -t 2>>$VTLOG; then
echo "use unsquashfs_64" >>$VTLOG
$BUSYBOX_PATH/cp -a $VTOY_PATH/tool/unsquashfs_64 $VTOY_PATH/tool/vtoy_unsquashfs
if $VTOY_PATH/tool/unsquashfs_64 -t 2>>$VTLOG; then
echo "use unsquashfs_64" >>$VTLOG
$BUSYBOX_PATH/cp -a $VTOY_PATH/tool/unsquashfs_64 $VTOY_PATH/tool/vtoy_unsquashfs