Chapter 5. Planning for Installation on 64-bit AMD, Intel, and ARM Systems

download PDF
This chapter outlines the decisions and preparations you will need to make when deciding how to proceed with the installation.

5.1. Upgrade or Install?

There are two procedures available for upgrading your current system to the next major version of Red Hat Enterprise Linux. To decide which procedure is the right one for your system, read the following descriptions:
Clean Install
A clean install is performed by backing up all data from the system, formatting disk partitions, performing an installation of Red Hat Enterprise Linux from installation media, and then restoring any user data.


This is the recommended method for upgrading between major versions of Red Hat Enterprise Linux.
In-Place Upgrade
An in-place upgrade is a way of upgrading your system without removing the older version first. The procedure requires installing the migration utilities available for your system and running them as any other software. In Red Hat Enterprise Linux, the Preupgrade Assistant assesses your current system and identifies potential problems you might encounter during or after the upgrade. It also performs minor fixes and modifications to the system. The Red Hat Upgrade Tool utility downloads the packages and performs the actual upgrade. An in-place upgrade requires a lot of troubleshooting and planning and should only be done if there is no other choice. For more information on the Preupgrade Assistant, see Chapter 29, Upgrading Your Current System.


Never perform an in-place upgrade on a production system without first testing it on a cloned backup copy of the system.
Red Hat logoGithubRedditYoutubeTwitter


Try, buy, & sell


About Red Hat Documentation

We help Red Hat users innovate and achieve their goals with our products and services with content they can trust.

Making open source more inclusive

Red Hat is committed to replacing problematic language in our code, documentation, and web properties. For more details, see the Red Hat Blog.

About Red Hat

We deliver hardened solutions that make it easier for enterprises to work across platforms and environments, from the core datacenter to the network edge.

© 2024 Red Hat, Inc.