</pre>
== Mounting the Xen Guest Root Filesystem ==
At this point we move to the remote system on which the Xen domU system is to be booted (in other words the Xen hosts system). In our example this is the system with the IP address specified in ''/etc/exports'' (i.e 192.168.2.11). For the purposes of this chapter we shall also be assuming the server on which we configured and exported root filesystem has an IP address of 192.168.2.4. In order to match the location of the root filesystem on the server we will created a /xen mount point on the current system:
<pre>
su -
mkdir /xen
</pre>
With the mount point created all that remains in this phase of the configuration is to mount /xen on 192.168.2.4 using NFS so that it is available at /xen on the host (192.168.2.11):
<pre>
mount 192.168.2.4:/xen /xen
</pre>
If the mount command fails be sure to check the firewall settings on NFS server to ensure that NFS traffic is permitted (NFS typically uses port 2049).
Assume the NFS mount was successful, a directory listing of /xen should reveal the root filesystem ready for use by our Xen domainU system.
== Creating the Xen Configuration File for the NFS Root Filesystem ==
