Thanks for the answers. I resolved the problem, it came of the keyboard. I changed the keyboard with a other, and now I can boot on the Debian cd by pressing the key 'c'.
the noncompatible keyboard is Logitech: cordless Desktop pro Now I have Debian on my Mac Mini, just the configuration to finish :-)) Eric -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]