I am installing Openstack Liberty by following Openstack guide on Ubuntu 14.04 LTS. I followed all steps, then issue following command for populating identity database.

#su -s /bin/sh -c "keystone-manage db_sync" keystone

      Password: 
      su: Authentication failure

It gives error of authentication failure as there is no 'su' user in ubuntu. Then I tried command with sudo.

#sudo -s /bin/sh -c "keystone-manage db_sync" keystone

     No handlers could be found for logger "oslo_config.cfg"

It gives error like above. I am at beginning of installation so there is no nova or anything else. I have searched through forums most people facing same issue but no answer is there.

If I ignore error and go ahead to create endpoints it gives error like "error 500 when creating identity endpoint"

#openstack service create --name keystone --description "OpenStack Identity" identity

Internal Server Error (HTTP 500)

Followed all the steps, then I got stucked at Add the Identity Service - Install and configure section. Inside Install and configure components section I sent the following command:

 ln -s /etc/apache2/sites-available/wsgi-keystone.conf /etc/apache2/sites-enabled

But then the system says

No handlers could be found for logger "oslo_config.cfg"

What he's talking about ? I am at the beginning of the installation so till now there's no nova, nor anything else, just setting up keystone.