@ the problem is, this is a physical server and the only possible way is Installation Media script. I don't have any other server or OVA to deploy, I need to do it at the same location.
Administrator is running but Analyzer too, which is key for the customer as it's their monitoring.
I don't know if there's a "perfect" approach for this scenario, that's why I thought the less complicated one is, simply upgrade. What do you think?