I tried to upgrade an Enterprise Manager Cloud Control 13.2 to the next level of happiness – 13.3 – like I did for several installations. Unfortunately, the ‘Upgrading an existing Enterprise Manager System’ option in the ‘Installation Types’ section of the installation GUI was not available. Usually, this behaviour points to an unavailable or corrupt Oracle inventory. An additional possibility could be that it is a bug. Check MOS Note “EM 13c: Checklist for Upgrading Enterprise Manager Cloud Control from Version 188.8.131.52/13.1/13.2 to 13.3 (Doc ID 2418352.1)”, the ‘Known Issues’ section: “Bug 28350114: EM 13.3 Upgrade, Installation Types Screen Is Not Showing the Upgrade Option”.
I opened a service request and got a recommendation, that was exactly designed for my environment, on how to solve the problem. Furthermore, I asked the Oracle support whether I was allowed to publish the solution, but they said:
“We are still waiting for a bug fix for a permanent solution and the workaround may or may not be suitable for all situations where the upgrade option is not available. There are chances like inventory details missing that can cause similar issues, hence it’s better to log a new request if there are any concerns to verify the install logs/screens and provide a solution/workaround.”
So, in case you face the missing update option too, please log a service request using the keywords “Bug 28350114: EM 13.3 Upgrade, Installation Types Screen Is Not Showing the Upgrade Option” and supply the install logs.