I asume you have an external usb drive involved and that you have a CD boot option in your computer.

The cheat code to use can be one of two:

If the drive having the Knoppix file is the only drive having a Knoppix file you can simply:

Knoppix26(assuming it is the 2.6 kernel) fromhd


or you may:

Knoppix26 fromhd=/dev/sda1 (Assuming the ID for the drive is sda1)


If your system uses the 2.4 kernel, try:

Linux fromhd


or:

Linux fromhd=/dev/sda1

Best of luck and merry christmas!