Patrick Welche <prlw1@newn.cam.ac.uk> writes:

> A few days ago someone posted about having made disk image and said that for
> him it booted on a SCSI CD drive but not an "IDE" drive. I made one and it
> did boot on a PC here via atapi. I took this image away and tried on an
> older computer with CD on atapibus and it didn't boot.

Many "older" PCs cannot boot from CD; they will only boot from a
floppy or harddisk. If your BIOS setup doesn't have a "boot order"
setting that includes "CD" somewhere in one of the orders, you're
pretty much screwed. (BTW, you should make sure the boot order is set
to place "CD" at the front).