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SUSE Liberty Linux

Registering RHEL 7 or CentOS Linux 7 with SUSE Manager

Publication Date: December 06, 2024

This guide explains how to register and update RHEL 7 or CentOS Linux 7 with SUSE Manager.

To register with RMT, see Registering RHEL 7 or CentOS Linux 7 with RMT.

Copyright © 2022–2024 SUSE LLC and contributors. All rights reserved.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or (at your option) version 1.3; with the Invariant Section being this copyright notice and license. A copy of the license version 1.2 is included in the section entitled GNU Free Documentation License.

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All information found in this book has been compiled with utmost attention to detail. However, this does not guarantee complete accuracy. Neither SUSE LLC, its affiliates, the authors nor the translators shall be held liable for possible errors or the consequences thereof.

1 Introduction

Important
Important: End of general support for SUSE Liberty Linux 7

SUSE Liberty Linux 7 has reached the end of general support and is now in LTSS (Long Term Service Support).

If you have a SUSE Liberty Linux subscription but do not have an LTSS subscription, you can continue to use your systems. However, registering new RHEL 7 or CentOS Linux 7 systems with the general subscription is no longer supported.

To register new RHEL 7 or CentOS Linux 7 systems, and to continue receiving new updates for existing systems, you must use an LTSS subscription.

Additionally, the optional High Availability extension is no longer supported with SUSE Liberty Linux LTSS 7. You must remove this product from your system before you can register with an LTSS subscription.

If you previously registered your systems with a general subscription and want to move them to an LTSS subscription, see Section 3, “Registering RHEL or CentOS Linux with SUSE Manager”.

SUSE Liberty Linux is a technology and support solution for mixed Linux environments. With a SUSE Liberty Linux subscription, you can register and update Red Hat Enterprise Linux and CentOS Linux.

The following table shows which Linux distributions are supported by each subscription. These subscriptions also include an entitlement for a registration tool to manage package updates.

Table 1: Supported distributions and registration options
SubscriptionSupported distributionsRegistration options

SUSE Liberty Linux Enterprise

CentOS Linux

Red Hat Enterprise Linux

SUSE Linux Enterprise Server

SUSE Manager

Repository Mirroring Tool

SUSE Liberty Linux Professional

CentOS Linux

Red Hat Enterprise Linux

SUSE Manager

Repository Mirroring Tool

SUSE Liberty Linux Basic

CentOS Linux

SUSE Manager

Repository Mirroring Tool

SUSE Liberty Linux Lite

CentOS Linux

Includes one entitlement for SLES to host RMT

Repository Mirroring Tool

Important

CentOS Stream is not supported.

Important

Registering RHEL or CentOS Linux directly with SUSE Customer Center is not currently supported.

This guide describes how to register with SUSE Manager. SUSE Manager is a lifecycle management system for mixed Linux environments. The SUSE Manager Server is registered with SUSE Customer Center, and other systems are registered as clients of SUSE Manager and receive packages from it directly.

To register with Repository Mirroring Tool, see Registering RHEL 7 or CentOS Linux 7 with RMT.

Procedure overview
Note
Note: SUSE Liberty Linux and SUSE Linux Enterprise Server with Expanded Support

SUSE Liberty Linux now provides what used to be covered by the SUSE Linux Enterprise Server with Expanded Support subscription. Some components might still use the Expanded Support name during the transition period.

2 Deploying SUSE Manager

See the following guide to install SUSE Manager on SUSE Linux Enterprise Micro, a lightweight, immutable operating system for containerized and virtual workloads: SUSE Manager Quick Start: Deploy SUSE Manager Server.

You can use most SUSE Liberty Linux subscriptions to register this machine. However, the Lite subscription only includes an entitlement for RMT, so if you want to use SUSE Manager instead you will need a separate SUSE Manager subscription.

Tip
Tip: Other installation options

For additional installation options, see the full SUSE Manager Installation and Upgrade Guide.

To deploy SUSE Manager in the public cloud, see SUSE Manager Public Cloud Guide.

Important
Important: SUSE Liberty Linux LTSS 7 repository size

The SUSE Liberty Linux LTSS 7 repositories will grow over time because older package versions are not removed. Based on the current[1] size of the repositories, to meet the 1.5 times size recommendation you will need approximately 15 GB of disk space for the default LTSS-Updates repository. If you need the optional LTSS-Source and LTSS-Debug repositories, you will need an additional 39 GB.

SUSE Liberty Linux LTSS 7 also has optional frozen BASE repositories that contain the packages from the non-LTSS repositories. If you need these repositories, to meet the 1.5 times size recommendation you will need approximately 210 GB for the BASE-Updates repository and 730 GB for the BASE-Source and BASE-Debug repositories.

3 Registering RHEL or CentOS Linux with SUSE Manager

Important
Important: New repositories for SUSE Liberty Linux LTSS 7

The repository structure has changed in SUSE Liberty Linux LTSS 7. If you previously registered your system with a general SUSE Liberty Linux subscription, follow the Client Configuration Guide again to add and synchronize the LTSS repositories.

To clean up the old repositories, see SUSE Manager Administration Guide: Remove Channels.

See the following guide to register Red Hat Enterprise Linux 7 or CentOS Linux 7 with SUSE Manager: SUSE Manager Client Configuration Guide: Registering SUSE Liberty Linux Clients.

Important

CentOS Stream is not supported.



[1] As of 31 October, 2024