Red Hat build of MicroShift

Keeping MicroShift and RHEL in a supported configuration

When using RPM updates, avoid creating an unsupported configuration or breaking your node by carefully managing your RHEL repositories.

Prerequisites

You understand the support status of the version of MicroShift you are using.
You have root-user access to your build host.
You reviewed the Red Hat Device Edge release compatibility matrix.

Procedure

Avoid unintended updates by locking your operating system version by running the following command:
```
$ sudo subscription-manager release --set=9.6
```
If you are using an EUS MicroShift release, disable the RHEL standard-support-scope repositories by running the following command:
```
$ sudo subscription-manager repos \
    --disable=rhel-9-for-$(uname -m)-appstream-rpms \
    --disable=rhel-9-for-$(uname -m)-baseos-rpms
```
You can replace 9 with the major version of your compatible RHEL system if it is not same version given in this example.
After you disable the standard-support repositories, enable the RHEL EUS repos by running the following command:
```
$ sudo subscription-manager repos \
    --enable rhel-9-for-$(uname -m)-appstream-eus-rpms \
    --enable rhel-9-for-$(uname -m)-baseos-eus-rpms
```
You can replace 9 with the major version of your compatible RHEL system if it is not same version given in this example.

Verification

List the repositories you have enabled for RHEL by running the following command:

$ sudo subscription-manager repos --list-enabled

Example output

+----------------------------------------------------------+
    Available Repositories in /etc/yum.repos.d/redhat.repo
+----------------------------------------------------------+
Repo ID:   rhel-9-for-x86_64-baseos-eus-rpms
Repo Name: Red Hat Enterprise Linux 9 for x86_64 - BaseOS - Extended Update Support (RPMs)
Repo URL:  https://cdn.redhat.com/content/eus/rhel9/$releasever/x86_64/baseos/os
Enabled:   1
Repo ID:   rhel-9-for-x86_64-appstream-eus-rpms
Repo Name: Red Hat Enterprise Linux 9 for x86_64 - AppStream - Extended Update Support (RPMs)
Repo URL:  https://cdn.redhat.com/content/eus/rhel9/$releasever/x86_64/appstream/os
Enabled:   1