Starting DevStack on an ubuntu/xenserver-core, n-cpu fails with:
2013-10-29 07:59:30.081 ERROR nova.virt.xenapi.host [-] The call to host_data returned an erro
r: ['XENAPI_PLUGIN_FAILURE', 'host_data', 'IOError', "[Errno 2] No such file or directory: '/u
sr/etc/xenhost.conf'"].
Starting DevStack on an ubuntu/xenserver-core, n-cpu fails with: