Changes in the installation procedure
The installation mainly remains the same, except for the differences mentioned in the following sections.
Adding the repository
We will need to add the appropriate repository for the version that we need to install, so if we were to install the Kilo release, we will add the Kilo repository as shown (we added the repository in Chapter 2, Authentication and Authorization Using Keystone, before installing Keystone):
apt-get install ubuntu-cloud-keyring echo "deb http://ubuntu-cloud.archive.canonical.com/ubuntu trusty-updates/kilo main" > /etc/apt/sources.list.d/cloudarchive-kilo.list
For a Liberty release, the repository can be added as follows:
apt-get install software-properties-common add-apt-repository cloud-archive:liberty ...
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