kmod-gfs-xen not installed with Conga install on xen machines. I'm guessing this is also true of kmod-gnbd-xen.
Devel ACK for rhel5.1 - Need to have in an early async errata release shortly after rhel5 GA.
Fixed in HEAD/RHEL4/RHEL5
Test with 0.9.2-4.el5 (conga and clustermon)
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2007-0640.html