Issues with registering a RHEV hypervisor (certificate signing)

Issue

I'm getting the below errors when trying to activate a host from rhem manager

2011-11-21 19:42:29,804 INFO  [org.ovirt.engine.core.utils.hostinstall.MinaInstallWrapper] (pool-21-thread-7) return true
2011-11-21 19:42:29,804 INFO  [org.ovirt.engine.core.bll.VdsInstaller] (pool-21-thread-7)  DownloadCertificateRequest ended:true
2011-11-21 19:42:29,804 INFO  [org.ovirt.engine.core.bll.CBCInstaller] (pool-21-thread-7) Installation of 10.207.33.195. Executing oVirt installation stage. (Stage: Sign certificate request and generate certificate)
2011-11-21 19:42:30,805 ERROR [org.ovirt.engine.core.utils.hostinstall.OpenSslCAWrapper] (pool-21-thread-7) Sign Certificate request failed with exit code: 1
2011-11-21 19:42:30,805 INFO  [org.ovirt.engine.core.bll.VdsInstaller] (pool-21-thread-7)  SignCertificateRequest ended:false
2011-11-21 19:42:30,805 ERROR [org.ovirt.engine.core.bll.VdsInstaller] (pool-21-thread-7) Error signing certificate request
2011-11-21 19:42:30,806 ERROR [org.ovirt.engine.core.bll.VdsInstaller] (pool-21-thread-7) Installation of 10.207.33.195. Operation failure. (Stage: Sign certificate request and generate certificate)
2011-11-21 19:42:30,806 INFO  [org.ovirt.engine.core.bll.InstallVdsCommand] (pool-21-thread-7) After Installation pool-21-thread-7
2011-11-21 19:42:30,810 INFO  [org.ovirt.engine.core.vdsbroker.SetVdsStatusVDSCommand] (pool-21-thread-7) START, SetVdsStatusVDSCommand(vdsId = e8caa2d2-1476-11e1-91ea-005056b105cd, status=InstallFailed, nonOperationalReason=NONE), log id: 51f28b7d