Hi, I have tried below steps to setup ovirt-engine on centos 6 os. Please help me to install ovirt engine on my machine. Steps: 1> Install "ovirt relase 40 rpm" Download from http://plain.resources.ovirt.org/pub/yum-repo/ovirt-release40.rpm 2> executed command "postgresql-setup initdb" --- output --- Initializing database ... OK ------------------ 3> executed command "systemctl restart postgresql.service" 4> executed command " engine-setup --log=/tmp/engine-setup.log" --- output --- # engine-setup --log=/tmp/engine-setup.log [ INFO ] Stage: Initializing [ INFO ] Stage: Environment setup Configuration files: ['/etc/ovirt-engine-setup.conf.d/10-packaging-jboss.conf', '/etc/ovirt-engine-setup.conf.d/10-packaging.conf', '/etc/ovirt-engine-setup.conf.d/20-setup-ovirt-post.conf'] Log file: /tmp/engine-setup.log Version: otopi-1.5.2 (otopi-1.5.2-1.el7.centos) [ ERROR ] Failed to execute stage 'Environment setup': Cannot connect to Engine database using existing credentials: engine@localhost:5432 [ INFO ] Stage: Clean up Log file is located at /tmp/engine-setup.log [ INFO ] Generating answer file '/var/lib/ovirt-engine/setup/answers/20161213080658-setup.conf' [ INFO ] Stage: Pre-termination [ INFO ] Stage: Termination [ ERROR ] Execution of setup failed ------------------ I have attached log file to this mail. Thanks, ~Rohit