Re: Device 769 (vbd) could not be connected

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Tue, Jun 22, 2010 at 09:12:37PM +0200, Emmanuel Dreyfus wrote:
> I try to boot a Linux domU. I use the install/boot/vmlinuz-2.6.18-xen
> kernel from xen-3.1.0-install-x86_32.tgz
> 
> Here is the xen config file for the domU:
> 
> kernel = "/xen/kern/vmlinuz-2.6.18-xen"
> memory = 1024
> name = "boulet"
> disk = [ 'file:/xen/vnd/boulet-hda1.vnd,hda1,w' ]
> root = "/dev/hda1"
> on_poweroff = 'destroy'
> on_reboot   = 'restart'
> on_crash    = 'restart'
> 
> And here is the result:
> # xm create -c boulet
> Using config file "./boulet".
> # Error: Device 769 (vbd) could not be connected. Hotplug scripts not
> working.
> 
> A web search tells me that this problem is known and can arise if the
> disk image is sparse. It is not the case here:
> # ls -sk /xen/vnd/boulet-hda1.vnd 
> 10243936 /xen/vnd/boulet-hda1.vnd
> # du -k /xen/vnd/boulet-hda1.vnd  
> 10243936        /xen/vnd/boulet-hda1.vnd
> 
> If I comment out the disk line in the config file, the Linux kernel does
> boot and panic at root mount time.
> 
> Any hint?

Any message in /var/log/xenbackendd.log ?

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--