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List:       kvm
Subject:    Re: virtio block drivers not working
From:       Caleb Tennis <caleb () aei-tech ! com>
Date:       2009-03-22 22:06:17
Message-ID: 7EE71E85-ED07-4C3D-8747-092F8F478A8E () aei-tech ! com
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On Mar 22, 2009, at 5:30 PM, Christoph Hellwig wrote:

> I do you virtio block in a very similar setup to yours (fully static
> kernel, -kernel option to kvm/qemu) sucesfully for quite a a while.
>
> Can you post your kernel .config and the contents of /proc/devices
> and /proc/partitions to debug this further?
>

I've found the problem.  In my testing, I was changing my second drive  
from ide to virtio, so it looked like this:

-drive index=0,media=disk,if=ide,file=/root
-drive index=1,media=disk,if=virtio,file=/data

This doesn't work though, even as vdb, as since the interface is the  
first virtio, the index needs to be set back to 0.  This gives me a / 
dev/vda like I was expecting.

Thanks,
Caleb
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