Relocating base directory Enterprise Manager’s central agent


After the upgrade of the 12c central agent to 13c, I noticed the new central agent’s home located under the wrong – old agent – directory: /u01/app/oracle/agent12c/agent_13. Must have done something wrong. How to correct this? Want to move the directory to /u01/app/oracle/agent13c/. A very short blog to describe the two steps.

It’s a bit hidden away in the documentation (in the appendixes) but there’s a special procedure to do this, and it worked like a charm for me.

So, /u01/app/oracle/agent12c/agent_13. should be /u01/app/oracle/agent13c/agent_13.

Step 1:  Create a list of plugins by using this command:

/u01/app/oracle/agent12c/agent_13.      /u01/app/oracle/agent12c/agent_13. -instancehome /u01/app/oracle/agent12c/agent_inst/

A file /u01/app/oracle/agent12c/plugins.txt is created, used by the next command.


Step 2: Creating a new base directory for agent13c – where I didn’t need to stop the agent by the way, that’s all included in the script:

/u01/app/oracle/agent12c/agent_13. /u01/app/oracle/agent12c/agent_13. -instanceHome /u01/app/oracle/agent12c/agent_inst -newAgentBaseDir /u01/app/oracle/agent13c

Post actions to be done:

  • Run from /u01/app/oracle/agent13c/agent_13. manually
  • Deinstall (rm -R) agent home /u01/app/oracle/agent12c/agent_13. manually

And that’s it! Sometimes life is easy.




Moving the central agent base directory :

About Author

Until February 2019, Job worked as a solution architect at AMIS Services with a special interest in Oracle licensing, High Availability architectures and managing complex (Oracle) environments, which includes Cloud environments.With a background as Oracle developer, DBA, team-manager and license-consultant he is able to utilize the Oracle technologies to a cost-efficient architecture for his customers.He is regularly involved in consultancy regarding: - Unlimited License Agreements (ULA). - License compliancy-checks and advice regarding optimizing the environment. - Second opinions. - Education / presentations about licensing and managing your infrastructure in the most cost-efficient manner.Twitter: @jobaclenl


  1. Hello, I have tried to run this after my 13.2 agent upgrade and I am receiving an error.
    Moving of /usr/local/oracle/product/12105/agent/agent_13. failed
    I did the same thing you did above and I am not sure why it is not working. Would you happen to know what I could be doing wrong? Thank you!

    • Without some more information it’s hard to figure out what could be wrong. It’s your central agent, not an agent on a target? And I think the /sbin don’t belong in the path you described. Shouldn’t it be /usr/local/oracle/product/12105/agent/agent_13. instead of /usr/local/oracle/product/12105/agent/agent_13. ?

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.