Hi,

My HP-Proliant Machine have faced abnormal shutdown due to a power failure.

after the event : "Operating System not found" appears & the system could not load operating system.

O/S: RHEL AS 4 update 2
Software Raid 1+0 were configured.


Facts Gathered:

All mount points are accessible through Linux Rescue Environment.

Try to re-install the grub, it failed with error "not a charactor device" { i have tried by giving all the available paths )

try to use fdisk, it failed with "Not a valid Partition table"

Any suggestions / recommendations will be highly appreciated.


Regards,

I recommend booting the system off the smartstart CD and running some disk diags. You can also see disk stats somewhere, check the error count on all disks, there might be an abnormally high value somewhere indicating a hardware problem.

Even if all the disk lights go green, there might be a problem with one of them.

If this box in production, I'd also suggest getting or using the h/w raid controller in raid 5. Performance sucks, but it's reliable.

I'm not into LVM so I'll leave the floor for someone else.

Thank you guys, Problem resolved ...