Re: kernel not booting after update

[John R Pierce <pierce@xxxxxxxxxxxx>]

> 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
http://thebs413.blogspot.com/2005/09/fake-raid-fraid-sucks-even-more-at.html


someone's procedure for undoing a fakeraid.
http://www.brandonchecketts.com/archives/disabling-dmraid-fakeraid-on-centos-5

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