Distributions might release OpenStack packages as part of their distribution or through other methods because the OpenStack and distribution release times are independent of each other.
This section describes the configuration you must complete after you configure machines to install the latest OpenStack packages.
To use the Ubuntu Cloud Archive for Havana
The Ubuntu Cloud Archive is a special repository that allows you to install newer releases of OpenStack on the stable supported version of Ubuntu.
Install the Ubuntu Cloud Archive for Havana:
# apt-get install python-software-properties # add-apt-repository cloud-archive:havana
Update the package database, upgrade your system, and reboot for all changes to take effect:
# apt-get update && apt-get dist-upgrade # reboot
