Quote Originally Posted by Raito
But that way you showed me doesn't work either.

I typed

knoppix screen=1280x800 depth=24 bootfrom=/dev/sda4/knoppix.iso

It still wants to boot from the DVD at /media/hdc. Why?
bootfrom option allways requires the CD, DVD, or the KNOPPIX-directory from CD/DVD to be able to boot from the ISO.

So you can't use that to boot directly from the ISO.