Description of problem: In Chapter6 of the Getting Started Guide: https://access.redhat.com/knowledge/docs/en-US/Red_Hat_OpenStack_Preview/2/html-single/Getting_Started_Guide/index.html#Chapter-Nova After setting the Cinder Volume API: # openstack-config --set /etc/nova/nova.conf DEFAULT volume_api_class nova.volume.cinder.API You have to add "enabled_apis=ec2,osapi_compute,metadata" in nova.conf, too: # openstack-config --set /etc/nova/nova.conf DEFAULT enabled_apis ec2,osapi_compute,metadata Without that, openstack-nova-api service fails to start with the following error in /var/log/nova/api.log: 2012-11-18 00:54:28 CRITICAL nova [-] [Errno 98] Address already in use Version-Release number of selected component (if applicable): $ rpm -qa | grep nova openstack-nova-api-2012.2-2.1.el6.noarch openstack-nova-2012.2-2.1.el6.noarch python-novaclient-2.9.0-1.el6.noarch openstack-nova-common-2012.2-2.1.el6.noarch openstack-nova-objectstore-2012.2-2.1.el6.noarch openstack-nova-cert-2012.2-2.1.el6.noarch openstack-nova-compute-2012.2-2.1.el6.noarch python-nova-2012.2-2.1.el6.noarch openstack-nova-console-2012.2-2.1.el6.noarch openstack-nova-network-2012.2-2.1.el6.noarch openstack-nova-scheduler-2012.2-2.1.el6.noarch openstack-nova-volume-2012.2-2.1.el6.noarch
FWIW: I can confirm Etsuji's findings and the proposed fix.
Fixed by Eric Harney as per Etsuji's recommendation.
The openstack-config command is no longer in Getting Started Guide..