Matt,

Thanks for your reply.

My initial responses are:

1. this computer was manufactured by Dell not IBM.  Not sure if I am
misunderstanding something.
2. Monolithic kernel - as per the lfs suggestions. There is a chicken-egg
problem if I use a modular driver for the raid
3. The debian installer always creates an initrd. LFS book suggests not
using one. I need to look in to how I can check what is in the initrd image.
4. Grub options are pretty straight forward in this case. But I will check
again
5. Filesystem support is correct: Ext2, Ext3

PT

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Matt Darcy
Sent: Thursday, April 13, 2006 9:33 AM
To: LFS Support List
Subject: Re: kernel panic - Dell CERC ATA100/4ch raid controller


>
> Upon reboot I receive the following - can't find my block device type
error:
>
> Cannot open root device "sda1" or unknown-block(0,0)
> Please append a correct "root=" boot option
> Kernel panic - not syncing: VFS: Unable to mount root fs on
> unknown-block(0,0)
>

Few things to look at

1.) What are the IBM drivers used for this card - do they recommend the
Megaraid drivers or 3rd party drivers ?
2.) Are you using a modular or monolithic kernel in terms of your
drivers for the disk controller and related components
3.) whats in the Debians initrd ? why would an initrd be needed if these
  devices are supported by the kernel properly - is Debian even using
the initrd for the disk drivers and is this a red herring
4.) Check your grub options, make sure they are right, its easy to make
a mistake
5.) make sure you have the right filesystem support in your kernel.


Matt


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