From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Gardner Subject: domU crashing with no root Date: Mon, 10 Oct 2005 16:49:11 -0600 Message-ID: <434AEFE7.3020308@hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: 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 Has something in domU configuration changed recently... Lately I have not been able to get domU to boot successfully. My (condensed) config file looks like this: kernel = "/boot/vmlinuz-2.6.12-xenU" memory = 128 name = "Rob-VM%d" % vmid cpu = -1 # leave to Xen to pick vcpus = 1 nics=1 disk = [ 'file:/xen/disk-images/dom1.fs,sda1,w'] ip = add_offset_to_ip(get_current_ipaddr(),vmid) netmask = get_current_ipmask() gateway = get_current_ipgw() hostname= "vm%d" % vmid root = "/dev/sda1 ro" extra = "4 VMID=%d" % vmid And when I start the domain, I get the following boot messages: IP-Config: Complete: device=eth0, addr=15.9.73.171, mask=255.255.248.0, gw=15.9.72.1, host=vm1, domain=, nis-domain=(none), bootserver=1.2.3.4, rootserver=1.2.3.4, rootpath= Looking up port of RPC 100003/2 on 1.2.3.4 portmap: server 1.2.3.4 not responding, timed out Root-NFS: Unable to get nfsd port number from server, using default Looking up port of RPC 100005/1 on 1.2.3.4 portmap: server 1.2.3.4 not responding, timed out Root-NFS: Unable to get mountd port number from server, using default mount: server 1.2.3.4 not responding, timed out Root-NFS: Server returned error -5 while mounting /tftpboot/vm1 VFS: Unable to mount root fs via NFS, trying floppy. VFS: Cannot open root device "sda1" 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) I don't get it. This worked in the past. I want to boot from a loopback file, not an nfs server. Why does it think there is no sda1? Thanks for any help. Rob