To perform the in-place upgrade from RHEL 8 to RHEL 9, you need to be running RHEL 8.6, which is the required source OS version. Minimum boot partition of 100MB (500MB recommended).A fast and reliable internet connection.An instance of Red Hat Enterprise Linux 8.Prerequisitesīefore you begin, please ensure you have the following set of requirements: In this tutorial, we’ll demonstrate how to perform an in-place upgrade from RHEL 8 to RHEL 9. An image builder tool for creating custom RHEL system images in a variety of formats.Ĭheck out the release notes for the most detailed and comprehensive list of all the new features and improvements in RHEL 9.Newer versions of language runtimes such as Python 3.9, Node.js 16, PHP 8.0, and Ruby 3.0.3 to mention a few.Security enhancements for SELinux and OpenSSH.Critical kernel security updates and patches can be applied without the need for scheduling downtime. Live kernel patching using the Cockpit web console.Improvements in the Cockpit web console, such as an enhanced performance metric page that helps identify issues from high memory and CPU utilization to bandwidth spikes. Some of the notable improvements and enhancements in the latest release include: RHEL 9 brings major changes that seek to enhance performance, improve stability, and boost security. The latest release of Red Hat Enterprise Linux 9 (RHEL 9) was officially made generally available (GA) by Red Hat on May 17, 2022, taking over from the beta version released on November 2, 2021. Perform a Pre-Upgrade and Resolve Any Issues.
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