Someone

wait_for_input() {
	while true
	do
		echo -n "Please choose one of the above [$last_selection]: " </dev/tty0 > /dev/tty0 2>&1
		read junk < /dev/tty0 2>&1

		# This is required to work around an annoying busybox bug.
		# Every key you press while this script runs will be
		# picked up by the next "read $junk". And there's no goddamn way
		# to prevent it. So the next read would pick up the "any" key the user pressed
		# above to launch the altboot menu.		
		junk="`echo "$junk" |  sed -n "s/.*\([0-9]\)/\1/p"`"