(DOCSP-45143) 8.0.0 upgrade issue and other fixes for older rpm warning-v6.0-backport (638) (#662)

# Backport

This will backport the following commits from `master` to `v6.0`:
- [(DOCSP-45143) 8.0.0 upgrade issue and other fixes for older rpm
warning (#638)](10gen/docs-ops-manager#638)
-
[Staging](https://deploy-preview-662--10gen-docs-ops-manager.netlify.app/tutorial/install-on-prem-with-rpm-packages/)
- [Deploy
Log](https://app.netlify.com/sites/10gen-docs-ops-manager/deploys/67867eb9fda59e000819044d)

<!--- Backport version: 9.6.1 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sorenlouv/backport)

Author: amalhotra-mdb

source/tutorial/install-on-prem-with-rpm-packages.txt

@@ -24,6 +24,18 @@ Prerequisites
 Install |onprem|
 ----------------
 
+.. warning::
+
+   ``rpm`` packages for |onprem| versions 6.0.0, 6.0.1, 6.0.2, and 8.0.0 
+   contained incorrect version information that could cause standard 
+   upgrades to fail. If upgrading from any of these versions to 
+   version 6.0.3 or greater, upgrade the package using the 
+   ``--oldpackage`` flag:
+
+   .. code-block:: sh
+
+      sudo rpm -Uvh --oldpackage mongodb-mms-<version>.x86_64.rpm
+
 To install |onprem|:
 
 .. include:: /includes/steps/install-on-prem-with-rpm-packages.rst