Open Stack

Greetings,

     I am currently trying to install Grizzly on a single node running 
Red Hat Enterprise Linux Server release 6.4, using RedHat's RDO 
repository 
(http://repos.fedorapeople.org/repos/openstack/openstack-grizzly/epel-6/). 
The related keystone RPM is openstack-keystone-2013.1-1.el6.noarch.

I have followed the instructions from the official documentation 
(http://docs.openstack.org/grizzly/openstack-compute/install/yum/content/install-keystone.html), 
without error up to the "keystone-manage db_sync" (included).

After that point, keystone commands return the following error : 
'NoneType' object is unsubscriptable. It would appear that the commands 
work at least in part, since I can see a user directly in the MySQL 
database after running a "keystone user-create" command, but I still 
can't list them :

# keystone user-list
'NoneType' object is unsubscriptable

The only changes I've made to the keystone.conf file apart from the log 
configuration are the connection and admin_token parameters. The mysql 
connection works correctly from the command line, and it would seem it 
works for the keystone utility as well since the database is populated.

I've also found nothing remarkable in the keystone log file.

As a side note, trying to install a full Openstack environment with the 
packstack utility failed with the same error.

Where should I look to get more info on that error?

Thanks in advance,

     Daniel.