Set the jumpers on the hd and cdrom.The hd should be set to master, and the cdrom set to slave. You might need sighted help finding the right jumpers. ----- Original Message ----- From: Alex Snow <alex_snow@xxxxxxx> To: <speakup at braille.uwo.ca> Sent: Thursday, March 07, 2002 6:57 PM Subject: Hardware Question Hi. I am installing a temperary verson of linux on an old 486 box. To Get linux from the winblows machine to the 486, I need to install a CDrom. I hooked it to the same ribbon as the hd since there was room, but it won't boot with the cdrom on the controler. How do I tell the hd to be master and cdrom to be slave?