On both the controller and compute nodes install the required nova- packages, and dependencies are automatically installed. On the controller node: $ sudo apt-get install nova-novncproxy novnc nova-api nova-ajax-console-proxy nova-cert nova-conductor nova-consoleauth nova-doc nova-scheduler nova-network On the compute node: $ sudo apt-get install nova-compute nova-network If you see the error: E: Unable to locate package nova-novncproxyensure that you have installed the Ubuntu Cloud Archive packages by adding the following to /etc/apt/sources.list.d/grizzly.list: deb http://ubuntu-cloud.archive.canonical.com/ubuntu precise-updates/grizzly mainPrior to running apt-get update and apt-get upgrade, install the keyring: $ sudo apt-get install ubuntu-cloud-keyring $ sudo yum install openstack-nova $ sudo zypper install openstack-nova