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[Xen-devel] Xen + NFS

  • To: xen-users@xxxxxxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx
  • From: jaikumar Ganesh <jaikumarg@xxxxxxxxx>
  • Date: Mon, 21 Nov 2005 21:02:47 -0600
  • Cc: sowmya dayanand <sowmyad@xxxxxxxxx>
  • Delivery-date: Tue, 22 Nov 2005 03:02:51 +0000
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  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

Hi All
   We are facing some problems with NFS on Xen:

1. base OS - Fedora core 3.
2. Xen 2.0.7 (installed from src).

/etc/exports file on Domain 0 : / (rw,sync,no_root_squash)
NFS has been started.

Config file for guest OSes:

kernel = "/root/xen-2.0/dist/install/boot/vmlinuz-2.6.11-xenU"
disk = ['file:/root/fedora.img,hda1,w']
# Root device for nfs.
root = "/dev/nfs"
# The nfs server.
nfs_server = ''
# Root directory on the nfs server.
nfs_root   = '/'

Also we have modified the /etc/fstab in fedora.img as below            /                       nfs     defaults        1 1
none                    /dev/pts                devpts  gid=5,mode=620  0 0
none                    /dev/shm                tmpfs   defaults        0 0
none                    /proc                   proc    defaults        0 0
none                    /sys                    sysfs   defaults        0 0
LABEL=SWAP-hda2         swap                    swap    defaults        0 0

The error we get on loading domain U is :

"Warning : Unable to open console".

We know that we need to set up the initrd for this error, but we used to get this error only while booting dom-0 and not dom-U.

It works fine when we are using file based VBDs and we are able to boot dom-U without any problems.

Any hints?

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