Re: [Xen-devel] Bugs with block devices to domU - let's find solution

["Stephan Boni" <boeni@xxxxxx>]

> Hello
> 
> I have the same bug, that've been disscussed before - domU can't find 
> any block devices and crashes with "Unable to mount root fs". 
> I've spend 
> a week under heavy debugging and find, that this bug take 
> place because 
> dom0 backend driver can't read parameter physical-device from 
> xenstore. 
> For example 
> /local/domain/0/backend/vbd/1/776/physical_device, where  1- 
> domU id, 776=0x308 - major and minor numbers of block device, 
> which will 
> used by domU.
> This parameter must be written by script 
> /etc/xen/scripts/block, which 
> must start like /etc/xen/scripts/vif-bridge any time as domU 
> starts, but 
> it doesn't.
> 
> So, there is a question to xen developers: when and how must 
> this script 
> must been started ?

I have this problem too! Can anyone of the xen developers solve this problem? 
It seams, it's the last very critical bug we have.

Thanks a lot.

Stephan

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