if [ -z "$TERM_TYPE" ]; then
	case `readlink /proc/self/fd/0` in
		/dev/console)
			TERM_TYPE=serial
			;;
		/dev/pts/*)
			TERM_TYPE=pts
			;;
	esac
fi

case "$TERM_TYPE" in
	serial)
		TERM=dumb
		DEBIAN_FRONTEND=text
		;;
	*)
		DEBIAN_FRONTEND=
		;;
esac

export DEBIAN_FRONTEND
export TERM
export TERM_TYPE
