Upgrade Oracle Enterprise Manager to 12.1.0.4

Enterprise Manager 12.1.0.4 was just released and now is time to test and document the process. The official documentation can be obtained from here (http://docs.oracle.com/cd/E24628_01/upgrade.121/e22625/upgrading_12101_PS1_gtgstrtd.htm) and this document cover the steps I followed and may not work on yours (I’m not responsible of any issues/problems caused to your system).
This document covers Oracle Enterprise Manager upgrade from 12.1.0.3 to 12.1.0.4 version in a Single-OMS configuration using one system upgrade method and is divided in 3 sections describing prerequisites, upgrade and post upgrade tasks.


Prerequisites


  • Download the software from (http://www.oracle.com/technetwork/oem/enterprise-manager/downloads/index.html) on your server and extract it to a stage directory.


mkdir /stage
unzip em12104_linux64_disk1.zip -d /stage
unzip em12104_linux64_disk2.zip -d /stage
unzip em12104_linux64_disk3.zip -d /stage


  • Ensure that you have a valid OMS (middleware home & inventory), Repository and Software Library backup.
  • If you have BI Publisher installed, then stop BIP server through WebLogic Admin Console.
  • Drop any snapshot created against Repository tables.


SQL> select master , log_table from all_mview_logs where log_owner=’SYSMAN’


no rows selected


  • Check and compile invalid objects in the Repository schema.


SQL> select ‘alter ‘||object_type||’ ‘||owner||’.’||object_name||’ compile;’ from all_objects
 2  where status=’INVALID’;


no rows selected


  • Execute privileges on DBMS_RANDOM are required during the upgrade, run the below commands to set them.


SQL> grant execute on DBMS_RANDOM to DBSNMP;
SQL> grant execute on DBMS_RANDOM to SYSMAN;
SQL> revoke execute on DBMS_RANDOM from PUBLIC;


  • Copy the emkey from OMS to the Management Repository.


$ emctl config emkey -copy_to_repos
Oracle Enterprise Manager Cloud Control 12c Release 3
Copyright (c) 1996, 2013 Oracle Corporation.  All rights reserved.
Enter Enterprise Manager Root (SYSMAN) Password :
The EMKey has been copied to the Management Repository. This operation will cause the EMKey to become unsecure.
After the required operation has been completed, secure the EMKey by running “emctl config emkey -remove_from_repos”.



  • Stop OMS, extended instances and both OMS and Repository agents.


$ emctl extended oms jvmd stop -all
Oracle Enterprise Manager Cloud Control 12c Release 3
Copyright (c) 1996, 2013 Oracle Corporation.  All rights reserved.
Please enter the SYSMAN password:
Stopping all Engines
{}
No engines found for this operation
Emctl Extended verb failed. Please check /u01/app/oracle/gc_inst/em/EMGC_OMS1/sysman/log/emctl.log for more details


$ emctl extended oms adp stop -all
Oracle Enterprise Manager Cloud Control 12c Release 3
Copyright (c) 1996, 2013 Oracle Corporation.  All rights reserved.
Please enter the SYSMAN password:
Stopping all Engines
{}
No engines found for this operation
Emctl Extended verb failed. Please check /u01/app/oracle/gc_inst/em/EMGC_OMS1/sysman/log/emctl.log for more details


$ emctl stop oms -all
Oracle Enterprise Manager Cloud Control 12c Release 3
Copyright (c) 1996, 2013 Oracle Corporation.  All rights reserved.
Stopping WebTier…
WebTier Successfully Stopped
Stopping Oracle Management Server…
Oracle Management Server Successfully Stopped
AdminServer Successfully Stopped
Oracle Management Server is Down


$ ./emctl stop agent
Oracle Enterprise Manager Cloud Control 12c Release 3
Copyright (c) 1996, 2013 Oracle Corporation.  All rights reserved.
Stopping agent ….. stopped.


Upgrade

  • Run the runInstaller executable from the folder where the software was extracted.


$ cd /stage
$ ./runInstaller



  • Type My Oracle Support account details.


  • Choose if you want to search for any software updates.


  • Review and fix any prerequisite failure.


  • Choose the upgrade method, in my case One system Upgrade then select the Oracle Home.


  • Type the “NEW” Middleware Home location.


  • Type the required Repository credentials.


  • Some prerequisites failed, click Yes to let the installer fix them automatically.


  • Review the list of plug-ins that are going to be automatically upgraded.


  • Select any additional plug-ins to be deployed after the upgrade.


  • Type the required WebLogic Domain credentials.


  • Review the all the information provided and click Install.


  • Review the progress.


  • Run the required allroot.sh script as root.


  • Review the final information about the upgrade process.



  • Login to Cloud Control and verify the version. Note that some targets are marked as down, we are going to fix them in the post upgrade tasks.


  • Upgrade Oracle Management Agents (at least OMS and Repository). Go to Setup -> Manage Cloud Control -> Upgrade Agents.



  • Type a Job Name (or use the default name) and click Add to select the agents you want to upgrade to 12.1.0.4.
  • Select the agents from the list and click OK.


  • Choose credentials and click Submit. There’s the option to schedule the upgrade for later under Additional Inputs.



  • You must run the root.sh script after the upgrade, click OK.


  • Review the agent upgrade process.



  • Agent upgrade was successful.


Post Upgrade

Deleting the Old OMS Home is an optional task, however I have decided to perform it in order to save space and have a clean Inventory.


  • Invoke the installer from the old OMS home


$ export ORACLE_HOME=/u01/app/oracle/oms12cr3/oms
$ /oui/bin/runInstaller -deinstall



  • Select only the OMS-related plug-ins homes (from the Old Home only!!) and click Remove.


  • Select the Java Development Kit JDK home and click Remove.


  • Select the Oracle WebTier home and click Remove. After finishing the deinstall click Close.


  • Finally select the OMS home & the Oracle Common directories and click Remove.


All targets marked up.

Thanks,
Alfredo