[Users] Problems with RHEL 5 x86_64 VMs in oVirt 3.3

Hello all, Please, I'm performing tests with oVirt 3.3 and it has been working really well, except the fact that the installation of RHEL 5 VMs is not happening, not sure why. Does anybody else is experiencing the same issue? Details: Reproducible steps: 1) Start the VM via 'Run once" option. 2) Insert the boot parameters, for instance: linux text 3) vmlinuz and initrd are loaded without errors. 4) Black screen with a blinking cursor. 5) Anaconda never come up, Kernel is not loaded apparently. The same behavior occurs with the following versions: RHEL 5.9 x86_64 RHEL 5.8 x86_64 RHEL 5.7 x86_64 VM definitions: Operating System: Red Hat Enterprise Linux 5.x x64 Optimized for: Server If I simple change to a RHEL 5.9 32Bits ISO (Even with the 'Operating System' field defined to work for x64), I am able to carry on with the VM installation and everything goes ok. Fedora 18 and 19 for x84_64 works well, also RHEL 6 builds for x86_64. Packages in use: ovirt-engine-3.3.0-1.fc19.noarch qemu-1.4.2-7.fc19.x86_64 qemu-kvm-1.4.2-7.fc19.x86_64 libvirt-1.0.5.5-1.fc19.x86_64 Details and data collected: VM name: tests-rhel5-64bits engine.log vdsm.log qemu process arguments libvirt relevant logs Last test timestamp: 2013-Sep-05, 12:09 VM tests-rhel5-64bits started on Host dell-pe2950-1 Should I file a bug? Any help will be really appreciated. Thanks, Raul.