Re: RAID 1 problems

[Alvin Oga <aoga@Maggie.Linux-Consulting.com>]

hi ya ivan

On Fri, 23 May 2003, Ivan Wills wrote:

> Hi
> I am getting the following kernel panic message when I try to boot into 
> my system, which I have just installed a RAID 1 array.
> 
> EXT3-fs: Unable to read supperblock
> EXT2-fs: Unable to read supperblock
> isofs_read_supper: bread failed, dev=09:00, iso_blknum=16, iso_block=32
> kernel panic: VFS: Unable to mount root fs on 09:00

its looking for / way out in never-never land 
	- double check  major and minor node numbers for /dev/st0  and
	/dev/md0

it can't find your /  parition

- tell it explicitly when it's at it lilo/grub bootmenu
	boot#  vmlinuz-x.y  root=/dev/md0

- or your kernel it's using does not support ext3 or raid but your other
  disk/kernel did support it so it boots cleanly ..

	- and/or you didnt install an initrd so that the boot kernel can
	read/write from the /dev/md0 device that it hasn't yet loaded up
	the ext3 and raid modules

- when you're done booting the other kernel,
	- copy over its kernel and modules into /boot/vmlinuz-works and
	it's /lib/modules
	- add that new test kernel to lilo/grub 
	- boot and cross your fingers

c ya
alvin