I am still a newbie and going through the ovirt "engine-setup" And I am getting an error ---> AIO: Validating CPU Compatibility... [ ERROR ] oVirt Engine will be installed using the following configuration: ================================================================= http-port: 80 https-port: 443 host-fqdn: ovirtmgr.localdomain auth-pass: ******** org-name: home default-dc-type: NFS db-remote-install: local db-local-pass: ******** nfs-mp: /mnt/iso iso-domain-name: iso override-iptables: no config-allinone: yes storage-path: /mnt/data superuser-pass: ******** Proceed with the configuration listed above? (yes|no): yes Installing: AIO: Validating CPU Compatibility... [ ERROR ] Error: Could not start libvirt service. Please try starting it manually and rerun the setup. Please check log file /var/log/ovirt-engine/engine-setup_2015_02_24_23_49_33.log for more information I examined the log " /var/log/ovirt-engine/engine-setup_2015_02_24_23_49_33.log": It consists of the following info: File "/usr/share/ovirt-engine/scripts/plugins/all_in_one_100.py", line 184, in startLibvirt raise Exception(ERROR_LIBVIRT_START) Exception: Error: Could not start libvirt service. Please try starting it manually and rerun the setup. Please find the attached file "/usr/share/ovirt-engine/scripts/plugins/all_in_one_100.py" Appreciate your help.