Upgrade Agent to 11g to run on 10.2.05 repository

Question

Hello.
I want to upgrade our 10.2.0.5 agent to 11.1.0.1.0 and have confirmed that this is supported via Certifications on Metalink.
Does anyone have experience of this procedure?
Regards,
DA.

Answer 1

Steps for the upgrade are thus:
Upgrade Procedure, as per Upgrading Oracle Management Agent Using a Response File from Oracle® Enterprise Manager Grid Control Advanced Installation and
Configuration Guide
11g Release 1 (11.1.0.1.0)
Part Number E16847-10
http://download.oracle.com/docs/cd/E11857_01/install.111/e16847/upgrade_agent_usng_rsp.htm#CEGIDJFC
To upgrade an existing Management Agent using a response file, follow these steps:
1.
Backup Agent Home and set Registration Password.
Backup the exisiting Agent Home
cp -R /oraoem/agent10g /oraoem/pre_upgrade_agent10g
set a Registration Password in Grid Control
In oraoem’s bash shell, set an environment variable for $AGENT_INSTALL_PASSWORD
2.
Prepare Response File.
Navigate to and edit the response file upgrade_agent.rsp as described here:
edit rsp file, as per Oracle doc, and set 2 values:
OLD_BASE_DIR
If you have the default name for the Oracle home of your existing Management Agent, that is, agent10g, then specify the path to the old installation base
directory where the Management Agent to be upgraded is residing.
For example, if the Management Agent is residing in /john/OracleHomes/10.2/agent10g, then specify only /john/OracleHomes/10.2/
ORACLE_AGENT_HOME_LOCATION
Specify the location where the Oracle home of the Management Agent (agent11g) can be created.
Therefore:
The old installation base directory where the Management Agent to be upgraded is residing =
OLD_BASE_DIR = /oraoem
ORACLE_AGENT_HOME_LOCATION = /oraoem/agent10g
3.
Stop the Agent and Invoke installation.
Stop the Management Agent you want to upgrade.
as oraoem emctl stop agent
Invoke the installer:
If you have the default name for the Oracle home of your existing Management Agent, that is, agent10g, then: run the following command:
./runInstaller -silent -responseFile /<path to upgrade_agent.rsp>
4.
Post upgrade tasks.
After you upgrade verify the installation:
emctl status agent
Run the following command to see a message that confirms that EMD upload completed successfully:
$<ORACLE_HOME>/bin/emctl upload
manually run the root.sh script as a root user from the Oracle home of the Management Agent:
as oraoem stop the agent
emctl stop agent
as root run the root.sh
<Oracle_Home>/root.sh
start agent
emctl start agent
DA