[CentOS] kernel not booting after update

John R Pierce pierce at hogranch.com
Fri Nov 13 00:23:42 UTC 2009

> The raid is indeed an Intel Matrix RAID. The BIOS is configured so that
> the sata controller is in RAID mode, and the "OPROM" is set to Matrix
> Raid.

I would backup ALL your file systems off that disk, perhaps using a 
Linux rescue CD, then configure the controller in the BIOS for JBOD, use 
a rescue disk to build mdraid partitions, and restore your files from 
the backups.   you may have to rebuild the /boot/initrd on the system to 
dump the fakeraid (dmraid) driver and enable the mdraid native linux 
raid driver

Fake Raid like Intel Matrix Raid is NOT recommended for linux/unix systems

someone's procedure for undoing a fakeraid.

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