As a pre-requisite to using the template you should have a software-only installation of a Oracle 188.8.131.52 RDBMS software.
The installation instructions warn that the template is suitable for a Simple Install. However you may also use it as a basis of an Advanced Installation. You can read the rest of the instructions here.
Note: The instructions in the documentation has a screenshot of a Oracle Database 12c DBCA instead of the 184.108.40.206 DBCA. I suspect this is a documentation bug.
To get started you will need to download the new Database Template. This is shown in the red box below.
You can either extract the software on your host or a location where the installer can be accessed by the host and copy them to the ORACLE_HOME/assistants/dbca/templates directory of the database home
or unzip them directly to the location. I chose to do the former.
[oracle@oem3 orastage]$ cd EM12cR2/
[oracle@oem3 EM12cR2]$ ls
DB220.127.116.11_EM_seed_database_linux64 em12cr2_linux64_disk1.zip em12cr2_linux64_disk3.zip jdk oms Release_Notes.pdf runInstaller wls
DB18.104.22.168_EM_seed_database_linux64.zip em12cr2_linux64_disk2.zip install libskgxn plugins response stage WT.zip
[oracle@oem3 EM12cR2]$ cd DB22.214.171.124_EM_seed_database_linux64
[oracle@oem3 DB126.96.36.199_EM_seed_database_linux64]$ ls
DB188.8.131.52_EM_seed_database.ctl DB184.108.40.206_EM_seed_database.dbc DB220.127.116.11_EM_seed_database.dfb shpool.sql
[oracle@oem3 DB18.104.22.168_EM_seed_database_linux64]$ cp * /u01/app/oracle/product/11.2.0/dbhome_1/assistants/dbca/templates/
Proceed to run DBCA in order to create the repository. Here I will only show the screens specific to the template.
Choose Create Database then select the option with the new DB22.214.171.124 seed database
Enter your database name and SID
I noticed that the "Configure Enterprise Manager" checkbox was still checked. I don't think this should be selected since we will be using it for a new repository.
Uncheck the box and continue to the next screen.
The template will also execute a script after the database has been created. This script sets the shared pool size to 300M.
Memory parameters are conservative for a simple installation. AMM is enabled, SGA set to 768M and PGA 256M. (Server was configured with 4GB)
The processes parameter has been set to 300 as is recommended by the installer in 126.96.36.199
There you have it - a pre-configured database ready for your new EM installation without any annoying dialog boxes... or is it?
I actually kicked off the EM 188.8.131.52 installer and received the following warning message.
It indicated that it wasn't able to complete some of the pre-requisites checks for the repository database and suggested that it be done manually via the EMPrereqkit. The logs didn't offer any help in identifying the error so I clicked OK as this is just a sandbox. For production or test environments I recommend to re-run the EMPrereqkit manually and try to identify any checks that fail.
In summary, this is a very welcomed addition to the Enterprise Manager 12c. It simplifies and speeds up the process of deploying the software.
Now to take EM12c R2 for a test drive...