James B. Byrne wrote: >> There is no ia64/ CentOS-5.2 >> > > x86_64 > > > The substantive question remains unanswered. Can I install the new disk > drivers for SATA AHCI from the 64 bit CentOS-5.2 boot dvd without having > to reinstall the entire OS or not? > you probably just need to force them into the initrd, while the system is still set to IDE, then set for ahci and reboot, and it likely will work. however, off the top of my head, I don't remember the correct incantation for this.... also, the precise AHCI SATA driver varies by chipset.