![]() $ cat /etc/redhat-release Step 2: Verify You Have a Red Hat Enterprise Linux Server Subscription Once the upgrade is complete, verify that you are running RHEL 8.6 as follows. If you have an older release, then upgrade it to RHEL 8.6 as follows. 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.
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