On Sat, Jul 16, 2011 at 7:31 AM, Kanwar Ranbir Sandhu m3freak@thesandhufamily.ca wrote:
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I have all of the SATA channels set to AHCI mode, which includes the Pioneer burner. I was thinking that maybe I should try changing the BIOS setting to IDE, but then tossed it aside as crazy talk.
After your email, I decided to change the DVDRW drive's SATA channel to IDE mode. Bingo! The CentOS 6 DVD booted. I have CentOS 6 running and fully updated now.
I haven't looked into why the SATA Pioneer DVDRW needed AHCI disabled in order to boot off the CentOS 6 DVD. Since the Fedora 15 DVD booted without issue, I can only surmise isolinux in CentOS 6 and in Fedora 15 behave differently.
Hmm. I am facing an unrelated problem [1] but the root cause could be similar to your problem. I'll try changing SATA from "enhanced" to "legacy" mode.
[1] Linux Mint Debian Edition installs successfully, BIOS is able to see the hard drive but complaints there is no boot disk!