[CentOS] Issue with CentOS 4.5 as DomU

Sun Jul 22 11:49:50 UTC 2007
mailist at sokol.dynalias.net <mailist at sokol.dynalias.net>

Hello list,

I want to virtualize my physical CentOS 4.5 yet. Therefor I download the
CentOS 4.5 iso. After mounting the iso on my notebook and make the mounted
iso available via nfs I start on my CentOS 5 xen machine following command:

virt-install -n myServer --ram=512 -f /virt/myServer.disk -s 150
--nographics -p --location=nfs:nbk:/media/centos

This works for CentOS 5 DomUs but CentOS 4.5 brings following error:

tail -n20 /var/log/xen/xend.log:
[2007-07-22 13:46:23 xend 2385] DEBUG (image:203) cmdline        =  
method=nfs:nbk:/media/centos
[2007-07-22 13:46:23 xend 2385] DEBUG (image:204) ramdisk        =
/var/lib/xen/initrd.img.MVoEr1
[2007-07-22 13:46:23 xend 2385] DEBUG (image:205) vcpus          = 1
[2007-07-22 13:46:23 xend 2385] DEBUG (image:206) features       =
[2007-07-22 13:46:23 xend.XendDomainInfo 2385] ERROR (XendDomainInfo:202)
Domain construction failed
Traceback (most recent call last):
  File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 195, in create
    vm.initDomain()
  File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 1377, in initDomain
    raise VmError(str(exn))
VmError: (22, 'Invalid argument')
[2007-07-22 13:46:23 xend.XendDomainInfo 2385] DEBUG (XendDomainInfo:1463)
XendDomainInfo.destroy: domid=16
[2007-07-22 13:46:23 xend.XendDomainInfo 2385] DEBUG (XendDomainInfo:1471)
XendDomainInfo.destroyDomain(16)
[2007-07-22 13:46:23 xend 2385] ERROR (SrvBase:88) Request create failed.
Traceback (most recent call last):
  File "/usr/lib64/python2.4/site-packages/xen/web/SrvBase.py", line 85, in
perform
    return op_method(op, req)
  File
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvDomainDir.py", line
82, in op_create
    raise XendError("Error creating domain: " + str(ex))
XendError: Error creating domain: (22, 'Invalid argument')

Any suggestions? Thanks.