Can not boot from SCSI drive using German Knoppix 5.0.1 CD

Has anyone tried modifying the MINIRT.GZ (to include the aic7xxx module)

the process is described here:

http://rz-obrian.rz.uni-karlsruhe.de/knoppix-usb/

Would that be worth a try? Or is the aic7xxx support broken, or what?