Greg, Gregory P. Ennis wrote: >> Gregory P. Ennis wrote: >>> Eve.8ryone, >>> >>> I have had a SuperMicro machine running Centos 5.8 that had been >>> progressively updated with yum-cron from a 5.0 CD install. >>> >>> I upgraded the SuperMicro with more memory, switched out the CD with a >>> DVD and tried to boot to the Centos x64 6.2 dvd. My plan was to test >>> the memory before I added the hard drives, but I could not I could not >>> get the machine to boot from the disc. I also tried some Fedora <snip> > Ok. Next question: what *happens* when you try to boot? Do you get > anywhere? Are there any errors showing up onscreen? > > We get a one line descriptor at the top of the screen that starts out with > > ISOLINUX ....... > > Sorry, but I can not remember the full line. > > The system then hangs at this point, and after this is displayed it does > not appear that the DVD drive is accessed again. At least the light on > the DVD does not blink again. > If you can boot another server from this DVD, it suggests that there's a driver missing, though if this is an install disk, that's odd. Have you tried <ctrl><alt><f4> or f5? IIRC, those should show what goes into dmesg. mark