[Users] Error installing self hosted engine

[ovirt-test at arcor.de]

Hello,

I'm new to this list and I need help installing a self hosted engine

I've installed CentOS 6.5 and oVirt 3.4. The following repositories are enabled:
yum localinstall http://resources.ovirt.org/releases/ovirt-release.noarch.rpm
yum localinstall http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
yum localinstall http://mirrors.dotsrc.org/jpackage/6.0/generic/free/RPMS/jpackage-release-6-3.jpp6.noarch.rpm

Just wanted to check out the self hosted feature. But I get this error:

# hosted-engine --deploy
[ INFO  ] Stage: Initializing
          Continuing will configure this host for serving as hypervisor and create a VM where you have to install oVirt Engine afterwards.
          Are you sure you want to continue? (Yes, No)[Yes]: 
[ INFO  ] Generating a temporary VNC password.
[ INFO  ] Stage: Environment setup
          Configuration files: []
          Log file: /var/log/ovirt-hosted-engine-setup/ovirt-hosted-engine-setup-20140401153028.log
          Version: otopi-1.2.0 (otopi-1.2.0-1.el6)
[ INFO  ] Hardware supports virtualization
[ INFO  ] Stage: Environment packages setup
[ INFO  ] Stage: Programs detection
[ INFO  ] Stage: Environment setup
[ ERROR ] Failed to execute stage 'Environment setup': <Fault 1: "<type 'exceptions.TypeError'>:cannot marshal None unless allow_none is enabled">
[ INFO  ] Stage: Clean up
[ INFO  ] Stage: Pre-termination
[ INFO  ] Stage: Termination

It is not this error:
http://lists.ovirt.org/pipermail/users/2014-March/022424.html

In my logfile are the following errors:
2014-04-01 15:30:32 DEBUG otopi.plugins.otopi.services.rhel plugin.executeRaw:366 execute: ('/sbin/service', 'vdsmd', 'status'), executable='None', cwd='None', env=None
2014-04-01 15:30:32 DEBUG otopi.plugins.otopi.services.rhel plugin.executeRaw:383 execute-result: ('/sbin/service', 'vdsmd', 'status'), rc=0
2014-04-01 15:30:32 DEBUG otopi.plugins.otopi.services.rhel plugin.execute:441 execute-output: ('/sbin/service', 'vdsmd', 'status') stdout:
VDS daemon server is running

2014-04-01 15:30:32 DEBUG otopi.plugins.otopi.services.rhel plugin.execute:446 execute-output: ('/sbin/service', 'vdsmd', 'status') stderr:


2014-04-01 15:30:32 DEBUG otopi.plugins.otopi.services.rhel rhel.status:147 service vdsmd status True
2014-04-01 15:30:32 DEBUG otopi.context context._executeMethod:152 method exception
Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/otopi/context.py", line 142, in _executeMethod
    method['method']()
  File "/usr/share/ovirt-hosted-engine-setup/scripts/../plugins/ovirt-hosted-engine-setup/system/vdsmenv.py", line 157, in _late_setup
    self._connect()
  File "/usr/share/ovirt-hosted-engine-setup/scripts/../plugins/ovirt-hosted-engine-setup/system/vdsmenv.py", line 78, in _connect
    hwinfo = serv.s.getVdsHardwareInfo()
  File "/usr/lib64/python2.6/xmlrpclib.py", line 1199, in __call__
    return self.__send(self.__name, args)
  File "/usr/lib64/python2.6/xmlrpclib.py", line 1489, in __request
    verbose=self.__verbose
  File "/usr/lib64/python2.6/xmlrpclib.py", line 1253, in request
    return self._parse_response(h.getfile(), sock)
  File "/usr/lib64/python2.6/xmlrpclib.py", line 1392, in _parse_response
    return u.close()
  File "/usr/lib64/python2.6/xmlrpclib.py", line 838, in close
    raise Fault(**self._stack[0])
Fault: <Fault 1: "<type 'exceptions.TypeError'>:cannot marshal None unless allow_none is enabled">
2014-04-01 15:30:32 ERROR otopi.context context._executeMethod:161 Failed to execute stage 'Environment setup': <Fault 1: "<type 'exceptions.TypeError'>:cannot marshal None unless allow_none is enabled">
2014-04-01 15:30:32 DEBUG otopi.context context.dumpEnvironment:468 ENVIRONMENT DUMP - BEGIN

Can anybody help me how to fix this problem?

Thank you