Re: kernel panic - trying to build 2.6.x for Dell PowerEdge 850
On Mon, Nov 07, 2005 at 12:29:58PM -0500, Mark Hansen wrote:
> I'm getting this error and can't boot the 2.6.9 kernel that I built:
>
> VFS: Unable to mount root fs on unknow-block(8,2).
>
> I'm NOT a linux admin by any stretch. This box boots using 2.4.31. I
> think maybe it has something to do with the SATA drive?? Any help will
> be appreciated.
We should be able to help, but need some more information. Could you
capture the boot messages from the kernel? If you have access to a
serial port cable you can tell the kernel to print everything to the
serial port as well as the screen by adding
"console=tty0 console=ttyS0,38400" to the kernel command line. In this
case we're using the first serial port (ttyS0) at 38400 baud.
In your case I think that means changing the line in lilo.conf from:
append="root=/dev/sda2"
to:
append="root=/dev/sda2 console=tty0 console=ttyS0,38400"
and rerunning lilo (from the working kernel). If you could also tell
us what chipset is in the box (the output from lspci -vv is helpful).
/Daniel
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