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... 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