	cd /boot
	for DTB in dreambox-dm900.dtb; do
		for type in zImage; do
			symlink_name=${type}"-"dm900
			DTB_EXT=${DTB##*.}
			DTB_BASE_NAME=`basename ${DTB} ."${DTB_EXT}"`
			DTB_SYMLINK_NAME=`echo ${symlink_name} | sed "s/dm900/${DTB_BASE_NAME}/g"`
			update-alternatives --remove ${DTB_BASE_NAME}.${DTB_EXT} devicetree-${DTB_SYMLINK_NAME}.${DTB_EXT} 31414 || true
		done
	done
