Re: Kernel 2.6.32-22-generic sata problems

From: Robert Hancock
Date: Sun Jun 06 2010 - 03:49:42 EST


On 06/05/2010 08:45 AM, DanVolkman wrote:
SYNOPSES
==========
Kernel fails to boot when multiple SATA drives are connected. After a
day of working on the problem (changing cables, sata positions,
motherboards, CPUs, power supplies, etc.) I discovered that with only
the boot drive connected everything worked fine.

BACKGROUND
=============
I had a career in UNIX so it is common for me to use cpio(1), tar(1),
dump(1), and dd(1) to replicate disks but have not been able to do so
with two SATA disks connected using older kernels but with this new
kernel I could not even have the second disk connected.

PROBLEM APPEARED WHEN
======================
An Ubuntu kernel update stopped my computer from booting. I have no
backup computer so my description is sketchy because I was not willing
to use a pencil and write the lengthy terse information. Boot error
message was something like:

Gave up waiting for root device. Common problems:0f106d71e58
...
ALERT! /dev/disk/by-uuid/..... does not exist. Dropping to a shell!

Can you get any of the libata messages showing up on the console? You might need to change grub options to boot with more debug displayed (don't know how to do that offhand on Ubuntu).
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