I have tried the above solution without success:

After booting from Knoppix 3.7 Live-CD I went mit cntrl-ALt-F1 to the console.
The command "knoppix tohd...." is not known to the bash shell (mybe it was only a path issue?)

I tried to issue "knoppix tohd=/dev/sda1" (I have an USB disk which was found and auto mounted by Knoppix) on the boot prompt.
This failed (probably because sda1 is not ready to be used at this early time in the boot process).

By the way, what is the difference to "knx-hdinstall" (does this prepare for a full boot from HD vs. a boot from CD taking most of the files from HD??)
Can I use this command as well to get all the system copied to HD and then have both options: boot from HD or from CD+HD?

[edit] I tested "knx-hdinstall" - command not found as well. I found "knx2hd" and "knoppix-installer" instead. I am a bit confused now! Any help to guide me out of this confusion?

Thx for clarification!