From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Vrable Subject: Re: Cannot create domU Date: Fri, 23 Sep 2005 10:37:59 -0700 Message-ID: <20050923173759.GA25613@vrable.net> References: <5d7aca9505092307156e0c7f00@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <5d7aca9505092307156e0c7f00@mail.gmail.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: NAHieu Cc: xen-devel List-Id: xen-devel@lists.xenproject.org On Fri, Sep 23, 2005 at 11:15:14PM +0900, NAHieu wrote: > I have a problem creating domU. Below is the error: > --- > ... > RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize > Xen virtual console successfully installed as tty1 > Event-channel device installed. > xen_blk: Initialising virtual block device driver > xen_blk: Timeout connecting to device! > xen_net: Initialising virtual ethernet driver. > NET: Registered protocol family 2 > IP: routing cache hash table of 512 buckets, 4Kbytes > TCP established hash table entries: 4096 (order: 3, 32768 bytes) > TCP bind hash table entries: 4096 (order: 2, 16384 bytes) > TCP: Hash tables configured (established 4096 bind 4096) > NET: Registered protocol family 1 > NET: Registered protocol family 17 > Root-NFS: No NFS server available, giving up. > VFS: Unable to mount root fs via NFS, trying floppy. > VFS: Cannot open root device "hda1" or unknown-block(2,0) > Please append a correct "root=" boot option > Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0) Jon Mason made a post yesterday where he tracked the problem down (for him) to the changeset "Move block device bind/unbind into hotplug scripts" (e9d01c5dc7b4d6b7cda9ade0d137ddb89bb204cc). I was running into the same problem, and so based on his detective work tried installing hotplug (actually hotplug and udev, but the first might be enough) in domain-0. Domain creation now works for me. Check to see if you have hotplug installed in your domain-0, and if not, whether installing it makes a difference. --Michael Vrable