miniPE, BackTrack and Knoppix in an USB pen

This is a small guide to create a USB pen drive with three livecds installed and ready to boot from it. These are miniPE, BackTrack and Knoppix. For good measure, I've thrown in Memtest86+ too. It is expected that the reader is seasoned in Linux usage; I certainly won't try to explain certain things.

http://darksun.com.pt/mirage/usb_minipe_backtrack_knoppix.html