Per Oracle documentation, you’re able to upgrade from EM12c to EM13c, including the OMR, (Oracle Management Repository) to DB12c and the OMS, (Oracle Management Service) to EM13c, but leave the agent software at a version of 12.1.0.3 or higher, leaving upgrades of the agents to be performed later on using the Gold Agent Image, removing a lot of work for the administrator. This is a great option for many customers, but what if your existing EM environment isn’t healthy and you need to start fresh?  What options are left for you then? I’ve covered, (and no, it isn’t supported by…