[CentOS] USB install annoyances

> I tried to boot from my 6.0 USB key, no joy. Updated it to
> 6.2. Still no joy: it gets started, I do the disk layout, it formats
> the drives, and then fails, saying that it can't find "image# 1".


Can you tell us how you're making the bootable USB key?
e.g. the source .iso file[s] and all commands used.