1 - Download
the OEM 12c R2. It can be downloaded here:
http://www.oracle.com/technetwork/oem/grid-control/downloads/index.html
Note: it is a set of three huge zips.
2 - Unzip
the archives
3 - Create a directory (as
the oem-owner user) where
the upgraded Middleware should be installed. For instance:
$ mkdir /u01/app/oracle/Middleware12cR2
4 - Back up OMS (Middleware home and inventory), Management Repository and
Software Library.
http://docs.oracle.com/cd/E24628_01/doc.121/e24473/ha_backup_recover.htm#EMADM10740
5 - Ensure that
the Management tables don't have snapshots:
SQL> select master , log_table from all_mview_logs where log_owner='<EM_REPOS_USER>If there are snapshots drop them:
SQL> Drop snapshot log on <master>
6 - Copy emkey from existing OMS:
$ <OMS_HOME>/bin/emctl config emkey -copy_to_repos [-sysman_pwd <sysman_pwd>]To verify whether
the emkey is copied, run
the following command: $ <OMS_HOME>/bin/emctl status emkeyIf
the emkey is copied, then you will see
the following message:The EMKey is configured properly, but is not secure.Secure
the EMKey by running "emctl config emkey -remove_from_repos".
7 - Stop
the OMS and
the Agent
$ <OMS_HOME>/bin/emctl stop oms
$ <AGENT_HOME>/bin/emctl stop agent
8 - from
the unzipped directory, run
$ ./runInstaller
8a - Follow
the wizard: Email / MOS;
Software Updates: disable or leave empty.
8b - Follow
the wizard: Installation type: Upgrade -> One System Upgrade.
8c - Installation Details: Middleware home location: enter
the directory created in step 3.
8d - Enter
the DB Connections Details. Credentials for SYS and SYSMAN.
8e - Dialog comes: Stop
the Job Gathering: click 'Yes'.
8f- Warning comes: click 'OK'.
8g - Select
the plugins to deploy along with
the upgrade process
8h- Extend Weblogic: enter
the password (recommended,
the same password for
the SYSMAN user).
A new directory will be created, recommended:
/u01/app/oracle/Middleware12cR2/gc_inst
8i - Let
the upgrade proceed by clicking 'Install'.
8j - Run
the following script (as root) and finish
the 'installation':
$ /u01/app/oracle/Middleware12R2/oms/allroot.sh
9 - Turn on
the Agent:
$ <AGENT_HOME>/bin/emctl start agent
Note that
the $AGENT_HOME might be located in
the old Middleware directory:
$ /u01/app/oracle/Middleware/agent/agent_inst/bin/emctl start agent
10 - go to
the EM UI. Select
the WebLogic Target and choose
the option "Refresh WebLogic Domain" from
the menu.
11 - Update
the Agents: Setup -> Manage Cloud Control -> Upgrade Agents -> Add (+)
Note that
the agents may take long to show up.
... and that's it! Or that should be it !
