Do you use reduced busybox?
Have boot error "can't access tty; job control turned off"?
Are you having trouble with ^C?
Here is solution:
Get busybox sources from http://www.busybox.net/ and
Configure busybox with option:
CONFIG_CTTYHACK=y
Run shell from boot script or inittab with:
setsid cttyhack sh
Have you further questions?
