Hello,

I have this problem.

We have a linux server that we rebooted last week. When coming up again it failed to boot.
The RAID utility reported (while trying to boot)
Primary Channel
Drive 0 not found
Drive 1 not found
Secondary Channel
Drive 0 not found
Drive 1 not found


I'll try and describe my configuration.

OS: Suse 8.1
kernel (uname -r)= 2.4.19-4GB

2 Maxtor 40 GB harddiscs in RAID 1 on a CMD ATA100 (Rev:A 000929) adapter plugged into PCI slot 1 with this info on the chip: SiI0649CL160.

in the other PCI slot: a network card.

Mobo: P4S5MG/GL/651

All this worked perfectly up to then as a LTSP terminal server, file, web, database server.

I tried booting the installed OS by selecting it from the list on the Suse CD.
Grub gives me: Unable to load stage 2
I also tried to connect one of the drives directly on the IDE1 slot , but then I'm also unable to boot.

With the Suse installation CD, I booted the resque system (= boot from CD)
and performed these commands:
////////////////////////////
*lspci:
00:00.0 Class 0600: 1039:0650 (rev 01)
00:01.0 Class 0604: 1039:0001
00:02.0 Class 0601: 1039:0008
00:02.2 Class 0c03: 1039:7001 (rev 07)
00:02.3 Class 0c03: 1039:7001 (rev 07)
00:02.5 Class 0101: 1039:5513 (rev d0)
00:02.7 Class 0401: 1039:7012 (rev a0)
00:03.0 Class 0200: 1039:0900 (rev 90)
00:09.0 Class 0104: 1095:0609 (rev 02)
00:0b.0 Class 0200: 10ec:8139 (rev 10)
01:00.0 Class 0300: 1039:6325
////////////////////////////

////////////////////////////
*dmesg:
VFS: Mounted root (ext2 filesystem) readonly.
Trying to move old root to /initrd ... failed
Unmounting old root
Trying to free ramdisk memory ... okay
Freeing unused kernel memory: 152k freed
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
////////////////////////////

Can anyone help me on this one?
Perhaps give me some other commands to further diagnose the problem.

PS: be gentle on me. I'm a

Hello all,

I'm posting this to let everyone know that this problem is solved so that others can learn from my 'mistakes'.
This problem actually turned out to be a hardware problem. The power supply was to weak/flaky. Here's an advice to everyone: always choose a good power supply.
Problems with the power supply are hard to detect / notice. I don't think there's a way to check this from within your OS (it also depends on your make of motherboard I suppose).
Anyway, a reboot command issued to the server made it shutdown, but not power-up again and in the process somehow corrupting my data.
Another possibilty for the loss of data is that someone might have forgot to umount a partition.

So, anyone reading here can correct me on this. This is just my view on the problem.

Because I had a RAIDed HDD I was able to recover all of my data to a newly installed OS.