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[Xen-users] Domu has no disks

  • To: "XEN Mailing List" <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: "Barry Kolts" <bhkolts@xxxxxxxxxxx>
  • Date: Tue, 11 Oct 2011 19:02:29 -0500
  • Delivery-date: Tue, 11 Oct 2011 17:07:59 -0700
  • List-id: Xen user discussion <xen-users.lists.xensource.com>


This is my first post to the list and I am new to Xen, so please excuse my ignorance.

I have Xen 4.0 running on Debian Squeeze with Squeeze as dom0. I am trying to install Ubuntu Lucid 10.04 as a guest. I am using the install cd iso. I think I should be able to do this based on this quote from http://wiki.xensource.com/xenwiki/XenOverview. From the 'Installing new Paravirtual (PV) guests' section, 'Ubuntu 10.04 ("Lucid Lynx") installer can be booted as a Xen PV guest and installed easily that way. '.

The problem is once the Ubuntu installer starts it cannot find the cdrom. Also if I use the net-install method, the installer can't find the virtual disk to install to. So my problem is not getting domu to boot but not having any disks once it does.

My domu configuration file is based on the xmexample1 configuration that was packaged with Xen. Rather than posting the whole file here are the changes I made:

kernel = "/etc/xen/install_kernels/cd-installer/vmlinuz"
ramdisk = "/etc/xen/install_kernels/cd-installer/initrd.gz"
memory = 512
name = "Lucid-server-install"
disk = [ 'file:/home/barry/iso/ubuntu-10.04.3-server-amd64.iso,xvdc:cdrom,r',
'tap:aio:/xen-vm-fs/lucid-vm-disk,xvda,w' ]
root = "/dev/cdrom ro"

The kernel and initrd.gz are copied of the cd iso. In the disk statement I have tried hdc, hda, sda, sdc to no avail. I have Googled, searched this list, the debian list, Ubuntu documentation and the Xen.org documentation and not found the answer. Can anyone spot where I've gone wrong? Please ask for more information or suggest how I can debug this problem. One more piece of information, this machine does not have a virtualization process so paravirtual is a must.

Thanks in advance for any help

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