[PLUG] Missing root!

[Jeme A Brelin]

On Sat, 11 Dec 2010, Bill Barry wrote:
> I was mostly ignoring the EXT3 error on the root device and thinking 
> that the root device is using SATA and the Radeon video is using PCI and 
> the common thing between those is the PCI bus. One is messing up the 
> other by some unknown conflict over the PCI Bus. You know the root 
> device is working with the onboard video.  This shifts attention to the 
> plugin video card. The combination onboard video and and plugin video 
> card has caused on and off trouble since the PC and its bios first came 
> into existence. I was thinking that the bios was not completely turning 
> off the onboard video so the kernel was loading the modules for the 
> onboard video and they were conflicting with the modules needed for the 
> Radeon and the side effect was that your root device was giving strange 
> errors.  But I could have wandered down the wrong path?

I think you've not wandered down the wrong path.  I inadvertantly lied to 
you!

The pci=use_crs had no discernible effect.  The address collision error is 
still there.  I think you're right about that being the real thing to be 
resolved.

The root drive is PATA/IDE, but there are also two SATA drives.  When 
mounting ANY of those drives using the BusyBox prompt after the failure to 
mount the root filesystem when the external video is engaged, I get the 
same EXT3-fs error.  The devices show up fine in /dev/disks/, but mounting 
them doesn't fly.

This is pretty frustrating.  Thanks to anyone thinking about this problem 
or following along.

J.