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. The examples in this guide use the OpenStack packages from the RDO repository. These packages work on Red Hat Enterprise Linux 6, compatible versions of CentOS, and Fedora 20. To enable the RDO repository, download and install the rdo-release-icehouse package: # yum install http://repos.fedorapeople.org/repos/openstack/openstack-icehouse/rdo-release-icehouse-3.noarch.rpm The EPEL package includes GPG keys for package signing and repository information. This should only be installed on Red Hat Enterprise Linux and CentOS, not Fedora. Install the latest epel-release package (see http://download.fedoraproject.org/pub/epel/6/x86_64/repoview/epel-release.html). For example: # yum install http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm The openstack-utils package contains utility programs that make installation and configuration easier. These programs are used throughout this guide. Install openstack-utils. This verifies that you can access the RDO repository: # yum install openstack-utils Use the Open Build Service repositories for Icehouse based on your openSUSE or SUSE Linux Enterprise Server version. For openSUSE 13.1 use: # zypper addrepo -f obs://Cloud:OpenStack:Icehouse/openSUSE_13.1 Icehouse If you use SUSE Linux Enterprise Server 11 SP3, use: # zypper addrepo -f obs://Cloud:OpenStack:Icehouse/SLE_11_SP3 Icehouse The openstack-utils package contains utility programs that make installation and configuration easier. These programs are used throughout this guide. Install openstack-utils. This verifies that you can access the Open Build Service repository: # zypper install openstack-utils The openstack-config program in the openstack-utils package uses crudini to manipulate configuration files. However, crudini version 0.3 does not support multi valued options. See https://bugs.launchpad.net/openstack-manuals/+bug/1269271. As a work around, you must manually set any multi valued options or the new value overwrites the previous value instead of creating a new option. The openstack-selinux package includes the policy files that are required to configure SELinux during OpenStack installation on RHEL and CentOS. This step is not required during OpenStack installation on Fedora. Install openstack-selinux: # yum install openstack-selinux Upgrade your system packages: # yum upgrade # zypper refresh # zypper update If the upgrade included a new kernel package, reboot the system to ensure the new kernel is running: # reboot The Ubuntu Cloud Archive is a special repository that allows you to install newer releases of OpenStack on the stable supported version of Ubuntu. Icehouse is in the main repository for 14.04 - this step is not required. Install the Ubuntu Cloud Archive for Icehouse: # apt-get install python-software-properties # add-apt-repository cloud-archive:icehouse Update the package database and upgrade your system: # apt-get update # apt-get dist-upgrade If you intend to use OpenStack Networking with Ubuntu 12.04, you should install a backported Linux kernel to improve the stability of your system. This installation is not needed if you intend to use the legacy networking service. Install the Ubuntu 13.10 backported kernel: # apt-get install linux-image-generic-lts-saucy linux-headers-generic-lts-saucy Reboot the system for all changes to take effect: # reboot The Icehouse release is available only in Debian Sid (otherwise called Unstable). However, the Debian maintainers of OpenStack also maintain a non-official Debian repository for OpenStack containing Wheezy backports. Install the Debian Wheezy backport repository Icehouse: # echo "deb http://archive.gplhost.com/debian icehouse-backports main" >>/etc/apt/sources.list Install the Debian Wheezy OpenStack repository for Icehouse: # echo "deb http://archive.gplhost.com/debian icehouse main" >>/etc/apt/sources.list Update the repository database and install the key: # apt-get update && apt-get install gplhost-archive-keyring Update the package database, upgrade your system, and reboot for all changes to take effect: # apt-get update && apt-get dist-upgrade # reboot Numerous archive.gplhost.com mirrors are available around the world. All are available with both FTP and HTTP protocols (you should use the closest mirror). The list of mirrors is available at http://archive.gplhost.com/readme.mirrors.

The Debian OpenStack packages are maintained on Debian Sid (also known as Debian Unstable) - the current development version. Backported packages run correctly on Debian Wheezy with one caveat: All OpenStack packages are written in Python. Wheezy uses Python 2.6 and 2.7, with Python 2.6 as the default interpreter; Sid has only Python 2.7. There is one packaging change between these two. In Python 2.6, you installed the python-argparse package separately. In Python 2.7, this package is installed by default. Unfortunately, in Python 2.7, this package does not include Provides: python-argparse directive. Because the packages are maintained in Sid where the Provides: python-argparse directive causes an error, and the Debian OpenStack maintainer wants to maintain one version of the OpenStack packages, you must manually install the python-argparse on each OpenStack system that runs Debian Wheezy before you install the other OpenStack packages. Use the following command to install the package: # apt-get install python-argparse This caveat applies to most OpenStack packages in Wheezy.