I am trying to boot knoppix on an old 486 with a sony cdu33a cdrom that runs off a sound card. Machine can't boot from cdrom. Have made boot disk using mkfloppy from the knoppix cd. When I boot knoppix from floppy, says searching for cdrom, can't find cdrom, then drops to limited filesystem. (I entered cheat codes for text mode, mem, screen, etc. I know cd is good, runs knoppix on another machine.) Is there a command I can pass to knoppix at boot to tell how to find the cdrom?