I downloaded the CentOS 6 x86_64 DVD ISOs and burned the first image to a rewritable DVD. When I tried to boot my new home server off it, it didn't, and then this was printed to the screen:
ETCDisolinux: Found something at drive = EF No DEFAULT or UI configuration directive found! boot:
The same disc works fine in my 4 year old HP laptop, and when installing CentOS 6 as a KVM.
By any chance is the drive that does not work *NOT* a CDRW drive? Sometimes CD-ROM drives do not like reading rewriteable media.
Barry