Hi, I have both the original FC4 DVD and an updated disk that I created with the released FC4 updates. Both disks booted and installed successfully on several machines to date. However, I have a machine near me that refuses to install FC4 from either disks. The machine has an ASRock P4VM800 mainboard, and a NEC DVD-RW. The kernel panics on boot saying that is cannot find its root device. Booting with linux root=/dev/hdc also panics saying it cannot find init. hdc is the NEC DVD-RW, hda is the harddisk. I upgraded BIOS on this machine from 1.10 to 1.30 but still gives me the above. The memory was originally faulty in the machine and the kernel paniced much earlier. The memory was replaced since then, memtest shows no errors. How can I convince the machine to boot and install FC4? Best regards, Zoltán Böszörményi