Thanks Oscar,

this is fine, I will use it now.
But a way to boot a ISO directly would be smarter
- faster
- more handy (an ISO ready for burn another CD as giveaway)
- a step to a solution to boot a iso directely from a ftp-server

I have open a new WIKI-page:
http://www.knoppix.net/docs/index.php/FaqHdBased
Please read it and correct/modify it.

Greetings
rob