SH: can't access tty; job control turned off

dear guys

am newbe in Knoppix 6
now used Knoppix 6 for liveCD

message come like
after boot by knoppix livecd
kernel 2.6.28
cpu 0 : intel pentium 4 CPU 2.4Ghz @ 29730MHZ 512KB Cache
konnte disk nicht nach /mnt-system mounten. starte debugging shell
SH: can't access tty; job control turned off
/#


what must we do?

because we used another computer specification
intel pentium 4 1.8Ghz memory 788MB
working well


One more
how must we do, if we want install to USB FlashMemory

one more thank you
djody

I'm having the exact same problem. AM2 5200+ x64,, 1gb DDR2 with IDE DVD-Rom.
Does the same thing if I try to run it from VirtualBox mounting the iso.
help! thanks

when i try to load knoppix on my Dell 4600c with 2.4ghz single core and 1024mb of ram i get the error "insmod: '/mnt-system/KNOPPIX/modules/aufs.ko" Input/output error
sh: can't access tty job control turned off.

Any insight?
This CD tested fine on an HP with an old sempron earlier today.