ifcfg-ovirtmgmt network should be found on disk after a successful
installation of a host. However, if network configuration phase fails,
ifcfg files should be reverted to their original values.
Could you see your super/vdsm.log if that is the case?
Could you explain when did "hypervisor part goes in timeout". Can you
correlate this to something in vdsm.log?
Dan.