In the "Upgrade Console", agents installed to monitor a RAC were reported as "agents with Invalid Inventory".
These agents were installed using this method, in a custom Oracle inventory.
Additionally, from the "Setup", "Agents" tab, you can see a particular agent's page. There, by pressing the "Oracle Home" link, I was getting the following error:
Could not find Oracle Home <ORACLE_HOME> in the inventory collected for <HOSTNAME> on <TIMESTAMP>
As described in Oracle note 735952.1 - "Error Could not find Oracle Home
- Edit $AGENT_HOME/
- Put an entry for your custom oraInst.loc, for example: inventory: /var/opt/oragrid/oraInst.loc
- Restart the agent
- From the OEM, go to the particular host's page, "Configuration" tab and press the "Refresh Host Configuration" button.
- Wait for it to complete and then go to your "Upgrade Console" and press the "Refresh Agents and Targets List" button.