Currently busy for a client to install and configure Oracle Enterprise Manager 12c for database and more administration across the globe. These environments were configured and setup by a different 3rd party so not always follow our wishes and administration guidelines. You can imagine that such environments are also a neat environments regarding learning curves while attempting (and today still successful) implementation of a “administer everything via Oracle Enterprise Manager 12c” setup.

Besides some “getting used to” and “Marco, read the manual first, for once in your live time” – issues, I encountered multiple issues (problems) trying to install the Oracle OEM 12c Agent software. Your first step to success… I also found some answers that I hereby want to share, so they will soften your upgrade and installation pain (if there is any).

First of all, it is probably a very good idea to install the agent software in a separate OS user, with the proper “oinstall” and “dba” OS group privileges. I still haven’t done it, but I guess that it would have made my issues / learning curve less painful. Installing the agent software via such a predetermined setup OS user would have More >