Deinstalling Oracle Management Agent in Silent Mode Using AgentDeinstall.pl Script

Environment Details:
OS: Linux Server 5.8 64bit
OEM Agent Version: 12.1.0.4.0
Agent Base: /opt/oracle/product/12.1.0.1.AGT

Agent Home: /opt/oracle/product/12.1.0.1.AGT/core/12.1.0.4.0

1. Stop the agent
[oracle@linux01 ~]$ /apps/oracle/product/12.1.0.1.AGT/agent_inst/bin/emctl stop agent
Oracle Enterprise Manager Cloud Control 12c Release 4
Copyright (c) 1996, 2014 Oracle Corporation.  All rights reserved.
Stopping agent ..... stopped.

2. Deinstall the agent:
Command: $<AGENT_HOME>/perl/bin/perl <AGENT_HOME>/sysman/install/AgentDeinstall.pl -agentHome <AGENT_HOME>

[oracle@linux01 ~]$ /apps/oracle/product/12.1.0.1.AGT/core/12.1.0.4.0/perl/bin/perl /apps/oracle/product/12.1.0.1.AGT/core/12.1.0.4.0/sysman/install/AgentDeinstall.pl -agentHome /apps/oracle/product/12.1.0.1.AGT/core/12.1.0.4.0

Agent Oracle Home: /apps/oracle/product/12.1.0.1.AGT/core/12.1.0.4.0

agentHome = /apps/oracle/product/12.1.0.1.AGT/core/12.1.0.4.0

NOTE: The agent base directory: /opt/oracle/product/12.1.0.1.AGT will be removed after successful deinstallation of agent home.

 DetachHome Command executed:/apps/oracle/product/12.1.0.1.AGT/core/12.1.0.4.0/oui/bin/runInstaller -detachHome -force -depHomesOnly -silent ORACLE_HOME=/apps/oracle/product/12.1.0.1.AGT/core/12.1.0.4.0 -waitForCompletion -invPtrLoc /apps/oracle/product/12.1.0.1.AGT/core/12.1.0.4.0/oraInst.loc
Starting Oracle Universal Installer...

Checking swap space: must be greater than 500 MB.   Actual 17190 MB    Passed
The inventory pointer is located at /apps/oracle/product/12.1.0.1.AGT/core/12.1.0.4.0/oraInst.loc
'DetachHome' was successful.
Starting Oracle Universal Installer...

Checking swap space: must be greater than 500 MB.   Actual 17190 MB    Passed
The inventory pointer is located at /apps/oracle/product/12.1.0.1.AGT/core/12.1.0.4.0/oraInst.loc
The Oracle home '/opt/oracle/product/12.1.0.1.AGT/sbin' could not be updated as it does not exist.

Deinstall Command executed:/apps/oracle/product/12.1.0.1.AGT/core/12.1.0.4.0/oui/bin/runInstaller -deinstall -silent "REMOVE_HOMES={/apps/oracle/product/12.1.0.1.AGT/core/12.1.0.4.0}" -waitForCompletion -removeAllFiles -invPtrLoc /apps/oracle/product/12.1.0.1.AGT/core/12.1.0.4.0/oraInst.loc
Starting Oracle Universal Installer...

Checking swap space: must be greater than 500 MB.   Actual 17190 MB    Passed
Preparing to launch Oracle Universal Installer from /tmp/OraInstall2014-11-26_11-56-07PM. Please wait ...Oracle Universal Installer, Version 11.1.0.12.0 Production
Copyright (C) 1999, 2014, Oracle. All rights reserved.

Starting deinstall

Deinstall in progress (Wednesday, November 26, 2014 11:56:18 PM CST)
Configuration assistant "Agent Deinstall Assistant" succeeded
............................................................... 100% Done.

Deinstall successful

End of install phases.(Wednesday, November 26, 2014 11:56:27 PM CST)
End of deinstallations
Please check '/opt/oracle/oraInventory/logs/silentInstall2014-11-26_11-56-07PM.log' for more details.

3. Remove the Agent Base directory
[oracle@linux01 ~]$ rm -rf /opt/oracle/product/12.1.0.1.AGT

4. Remove the targets associated to that agent & agent from OEM