[herrold@dhcp-231 xen]$ sudo /usr/sbin/xm create -c russ1
Using config file "/etc/xen/russ1".
Going to boot CentOS (2.6.18-8.el5)
  kernel: /vmlinuz-2.6.18-8.el5
  initrd: /initrd-2.6.18-8.el5.img
Error: (22, 'Invalid argument')
[herrold@dhcp-231 xen]$ sudo su -
[root@dhcp-231 ~]# xm create -c russ1
Using config file "/etc/xen/russ1".
Going to boot CentOS (2.6.18-8.el5)
  kernel: /vmlinuz-2.6.18-8.el5
  initrd: /initrd-2.6.18-8.el5.img
Error: (22, 'Invalid argument')
[root@dhcp-231 ~]#

[root@dhcp-231 ~]# ls -l  /etc/xen /var/xen
/etc/xen:
total 112
drwxr-xr-x 2 root root 4096 Apr  9 03:32 auto
-rwxr-xr-x 1 root root  164 Apr  9 03:32 qemu-ifup
-rw-rw-r-- 1 root root  302 Oct  1 15:14 russ1
drwxr-xr-x 2 root root 4096 Sep 27 10:34 scripts
-rw-r--r-- 1 root root 4880 Apr  9 03:32 xend-config.sxp
-rw-r--r-- 1 root root 1256 Apr  9 03:32 xend-pci-permissive.sxp
-rw-r--r-- 1 root root 4129 Apr  9 03:32 xend-pci-quirks.sxp
-rw-r--r-- 1 root root 5463 Apr  9 03:32 xmexample1
-rw-r--r-- 1 root root 6746 Apr  9 03:32 xmexample2
-rw-r--r-- 1 root root 7264 Apr  9 03:32 xmexample.hvm
-rw-r--r-- 1 root root 5315 Apr  9 03:32 xmexample.vti

/var/xen:
total 10373052
drwx------ 2 root root      16384 Sep 26 13:31 lost+found
-rwxrwxr-x 1 root root 5242880000 Sep 28 09:54 russ1-img
-rwxr-xr-x 1 root root 5368709120 Oct  1 15:41 russ1.img