Chapter 6. Performing post-upgrade tasks

This procedure lists major tasks recommended to perform after an in-place upgrade to RHEL 8.

Prerequisites

Procedure

After performing the upgrade, complete the following tasks:

  1. Ensure your system remains supported after the in-place upgrade. With the general availability of RHEL 8.3, update your system either to RHEL 8.3 or to RHEL 8.2 Extended Update Support (EUS).

    1. Update the system to RHEL 8.3:

      1. Unset Red Hat Subscription Manager to consume the latest RHEL 8.3 content:

        # subscription-manager release --unset
      2. Update your system to the latest RHEL 8.3 version:

        # yum update
    2. Update the system to RHEL 8.2 EUS:

      1. Enable RHEL 8 EUS repositories:

        # subscription-manager repos --enable repository_id1 --enable repository_id2 …

        Replace repository_id* with IDs of EUS repositories available with your subscription. Enable at least the BaseOS and AppStream repositories. For example, on the Intel 64 architecture:

        # subscription-manager repos --enable  rhel-8-for-x86_64-baseos-eus-rpms --enable rhel-8-for-x86_64-appstream-eus-rpms
      2. Update your system to the latest RHEL 8.2.EUS version

        # yum update
  2. If you upgraded using RHUI on AWS or Microsoft Azure and your software certification is not available on a later minor release version, lock your system to a minor release version supported by your certification.

    # echo '8.x' > /etc/yum/vars/releasever
  3. Re-evaluate and re-apply your security policies. Especially, change the SELinux mode to enforcing. For details, see Applying security policies.