linux-kernel - RE: could not find filesystem /dev/root

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Date:	Tue, 7 Nov 2006 08:04:33 +0100
From:	"Paul Rolland" <rol@...917.net>
To:	"'Marc Perkel'" <marc@...kel.com>,
	"'Chris Lalancette'" <clalance@...hat.com>
Cc:	"'Rafael J. Wysocki'" <rjw@...k.pl>, <linux-kernel@...r.kernel.org>
Subject: RE: could not find filesystem /dev/root

Hello,

> > I ran into the same problem when using an FC-6 .config file 
> compiling 2.6.19-rc4.  In my case, the problem was that the 
> configuration options for Serial ATA have changed since 
> 2.6.18 (which the FC-6 config is based on).  I had to 
> manually go in to the config (with make menuconfig) and turn 
> on the SATA device that I have.  What kind of SATA controller 
> do you have, and what does your .config look like?

I also had nearly the same problem when moving from FC5 kernel to a
stock vanilla kernel : FC5 is heavily relying on modules, and my vanilla
kernel was compiled with everything built-in and no modules. 
This is definitely changing the order in which drivers and disks are
discovered
and resulted in drives changing devices :
FC5               Vanilla
/dev/sda   <--->  /dev/sdb
/dev/sdb   <--->  /dev/sdc
/dev/sdc   <--->  /dev/sda

This is a real pain, though people will tell you that udev is supposed
to take care of this... My problem was just that I _don't_ want udev
on my machine...

So, check also this point...

Regards,
Paul

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