WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

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

To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-devel] Bugs with block devices to domU - let's find solution
From: Ewan Mellor <ewan@xxxxxxxxxxxxx>
Date: Wed, 19 Oct 2005 13:56:34 +0100
Delivery-date: Wed, 19 Oct 2005 12:53:49 +0000
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <43552BAB.8@xxxxxxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <43552BAB.8@xxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Mutt/1.5.9i
On Tue, Oct 18, 2005 at 09:06:51PM +0400, Guryanov Dmitry wrote:

> 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 ?

This script is run by your hotplug / udev installation inside dom0 when the
domU starts up.  Do you have hotplug and udev installed in dom0?

Ewan.


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

<Prev in Thread] Current Thread [Next in Thread>