From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guryanov Dmitry Subject: Re: Bugs with block devices to domU - let's find solution Date: Wed, 19 Oct 2005 19:03:15 +0400 Message-ID: <43566033.8050205@dgap.mipt.ru> References: <43552BAB.8@dgap.mipt.ru> <20051019125634.GI26910@leeni.uk.xensource.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20051019125634.GI26910@leeni.uk.xensource.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org Ewan Mellor wrote: >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. > > > Thanks, that's was a bug, now it works properly. >_______________________________________________ >Xen-devel mailing list >Xen-devel@lists.xensource.com >http://lists.xensource.com/xen-devel > >