I have just formatted a pentium 3 gateway pc and so far, all it has is a c: and d: drive partition. I made a boot disk which mounts the cdrom as x: drive, but it won't read from it. It let's you choose the drive, but gives a CDR101: Cannot read from x: I can't do a DIR to get to the setup.exe on the xp system disk. I have tried it with 3 different types of system disks and it won't boot any of them from the rom.
What does it want? It will only boot from the boot disk.