Supported IBM Cloud Manager with OpenStack operating systems

This section lists the operating systems and versions that IBM Cloud Manager with OpenStack supports.

The following table lists the operating systems that are supported for installing IBM Cloud Manager with OpenStack on the controller node.

Table 1. Supported operating systems for controller node
Operating system	Versions	Notes®
Red Hat Enterprise Linux	Version 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 (x86_64) Version 7.1 (ppc64)	With the most recent package updates. For more information, see Installing and Managing Software in the Red Hat Enterprise Linux customer portal. For upgrading the operating system to your version of Red Hat Enterprise Linux, see Configuring operating system yum repositories for nodes using Red Hat Enterprise Linux and Upgrading the Operating System. If you do a fresh IBM Cloud Manager with OpenStack installation on Red Hat Enterprise Linux 7.4 or higher, you may face issues while accessing the user interface. It is applicable even when you upgrade to Red Hat Enterprise Linux 7.4 or higher. For more information about the resolution, see Install or upgrade IBM Cloud Manager with OpenStack on Red Hat Enterprise Linux 7.4 or higher.

Notes:

Red Hat Enterprise Linux 7.2 is supported on fix pack 7 and higher versions.
Red Hat Enterprise Linux 7.3 is supported on fix pack 8 and higher versions.
Red Hat Enterprise Linux 7.4 is supported on fix pack 9 and higher versions.
Red Hat Enterprise Linux 7.5 is supported on fix pack 11 and higher versions.
Red Hat Enterprise Linux 7.6 is supported on fix pack 13 and higher versions.
If you use the GNOME Desktop Environment (gnote) or KDE Desktop Environment, some package conflicts might exist with IBM Cloud Manager with OpenStack. For more information about resolving the package conflicts, see Error occurs when installing qpid.
If you plan to use Red Hat Enterprise Linux 7.2 or later as controller nodes or DB2®node, set RemoveIPC=no in file /etc/systemd/logind.conf.. RHEL 7.2, plan to install IBM Cloud Manager with OpenStack Deployment Server on a system with over 64 GB of physical memory, see Installation fails with create_database_opscode-pgsql error in installation log. RHEL 7.2 started using the systemd facility, and RemoveIPC=yes is defined in /etc/systemd/logind.conf as a default, it might cause an IBM instance crash. Refer to: http://www-01.ibm.com/support/docview.wss?uid=swg21977093.