Deinstalling Oracle Management Agent in Silent Mode

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 ~]$ cd /opt/oracle/product/12.1.0.1.AGT/agent_inst/bin
[oracle@linux01 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 plug-in homes:

Command: $<AGENT_HOME>/oui/bin/runInstaller -deinstall ORACLE_HOME=<absolute_path_to_agent_home> [-removeallfiles] [-invPtrLoc <absolute_path_to_oraInst.loc>]

[oracle@linux01 bin]$ cd /opt/oracle/product/12.1.0.1.AGT/plugins
[oracle@linux01 plugins]$ls -lrt 
drwxr-xr-x  6 oracle oradba 4096 Oct  8 03:37 oracle.sysman.db.discovery.plugin_12.1.0.6.0
drwxr-xr-x  6 oracle oradba 4096 Oct  8 03:37 oracle.sysman.oh.discovery.plugin_12.1.0.4.0
drwxr-xr-x  8 oracle oradba 4096 Oct  8 03:37 oracle.sysman.emas.discovery.plugin_12.1.0.6.0
drwxr-xr-x 11 oracle oradba 4096 Oct  8 03:46 oracle.sysman.oh.agent.plugin_12.1.0.4.0
drwxr-xr-x 11 oracle oradba 4096 Oct  8 04:03 oracle.sysman.db.agent.plugin_12.1.0.6.0

[oracle@linux01 plugins]$ /opt/oracle/product/12.1.0.1.AGT/core/12.1.0.4.0/oui/bin/runInstaller -deinstall -silent "REMOVE_HOMES={/opt/oracle/product/12.1.0.1.AGT/plugins/oracle.sysman.db.discovery.plugin_12.1.0.6.0,/opt/oracle/product/12.1.0.1.AGT/plugins/oracle.sysman.oh.discovery.plugin_12.1.0.4.0,/opt/oracle/product/12.1.0.1.AGT/plugins/oracle.sysman.emas.discovery.plugin_12.1.0.6.0,/opt/oracle/product/12.1.0.1.AGT/plugins/oracle.sysman.oh.agent.plugin_12.1.0.4.0,/opt/oracle/product/12.1.0.1.AGT/plugins/oracle.sysman.db.agent.plugin_12.1.0.6.0}" ORACLE_HOME=/opt/oracle/product/12.1.0.1.AGT/core/12.1.0.4.0 -removeAllFiles -invPtrLoc /opt/oracle/oraInventory/oraInst.loc                                          
Starting Oracle Universal Installer...

Checking swap space: must be greater than 500 MB.   Actual 16234 MB    Passed
Preparing to launch Oracle Universal Installer from /tmp/OraInstall2014-11-25_12-20-35AM. Please wait ...[oracle@linux01 ~]$/opt/oracle/product/12.1.0.1.AGT/plugins: Oracle Universal Installer, Version 11.1.0.12.0 Production
Copyright (C) 1999, 2014, Oracle. All rights reserved.

Starting deinstall

Deinstall in progress (Tuesday, November 25, 2014 12:20:39 AM CST)
............................................................... 100% Done.

Deinstall successful

End of install phases.(Tuesday, November 25, 2014 12:20:40 AM CST)
End of deinstallations
Please check '/opt/oracle/oraInventory/logs/silentInstall2014-11-25_12-20-35AM.log' for more details.

3. Deinstall the sbin home:
Command: $<AGENT_HOME>/oui/bin/runInstaller -deinstall -silent "REMOVE_HOMES={absolute_path_to_sbin_directory}" ORACLE_HOME=<absolute_path_to_agent_home> [-removeAllFiles] [-invPtrLoc <absolute_path_to_oraInst.loc>]

[oracle@linux01 ~]$ /opt/oracle/product/12.1.0.1.AGT/core/12.1.0.4.0/oui/bin/runInstaller -deinstall -silent "REMOVE_HOMES={/opt/oracle/product/12.1.0.1.AGT/sbin}" ORACLE_HOME=/opt/oracle/product/12.1.0.1.AGT/core/12.1.0.4.0 -removeAllFiles -invPtrLoc /opt/oracle/oraInventory/oraInst.loc
Starting Oracle Universal Installer...

Checking swap space: must be greater than 500 MB.   Actual 16234 MB    Passed
Preparing to launch Oracle Universal Installer from /tmp/OraInstall2014-11-25_12-22-02AM. Please wait ...[oracle@linux01 ~]$/opt/oracle/product/12.1.0.1.AGT: Oracle Universal Installer, Version 11.1.0.12.0 Production
Copyright (C) 1999, 2014, Oracle. All rights reserved.

Starting deinstall


Deinstall in progress (Tuesday, November 25, 2014 12:22:05 AM CST)
............................................................... 100% Done.

Deinstall successful

End of install phases.(Tuesday, November 25, 2014 12:22:07 AM CST)
End of deinstallations
Please check '/opt/oracle/oraInventory/logs/silentInstall2014-11-25_12-22-02AM.log' for more details.

4. Deinstall the Management Agent:
Command: $<AGENT_HOME>/oui/bin/runInstaller -deinstall -silent "REMOVE_HOMES={absolute_path_to_agent_oracle_home}" ORACLE_HOME=<absolute_path_to_agent_home> -removeAllFiles -invPtrLoc <absolute_path_to_oraInst.loc>

[oracle@linux01 ~]$ /opt/oracle/product/12.1.0.1.AGT/core/12.1.0.4.0/oui/bin/runInstaller -deinstall -silent "REMOVE_HOMES={/opt/oracle/product/12.1.0.1.AGT/core/12.1.0.4.0}" ORACLE_HOME=/opt/oracle/product/12.1.0.1.AGT/core/12.1.0.4.0 -removeAllFiles -invPtrLoc /opt/oracle/oraInventory/oraInst.loc  
Starting Oracle Universal Installer...

Checking swap space: must be greater than 500 MB.   Actual 16234 MB    Passed
Preparing to launch Oracle Universal Installer from /tmp/OraInstall2014-11-25_12-23-29AM. Please wait ...[oracle@linux01 ~]$/opt/oracle/product/12.1.0.1.AGT: Oracle Universal Installer, Version 11.1.0.12.0 Production
Copyright (C) 1999, 2014, Oracle. All rights reserved.

Starting deinstall


Deinstall in progress (Tuesday, November 25, 2014 12:23:33 AM CST)
Configuration assistant "Agent Deinstall Assistant" succeeded
............................................................... 100% Done.

Deinstall successful

End of install phases.(Tuesday, November 25, 2014 12:23:40 AM CST)
End of deinstallations
Please check '/opt/oracle/oraInventory/logs/silentInstall2014-11-25_12-23-29AM.log' for more details.

5. Remove the Agent Base directory

[oracle@linux01 ~]$ rm -rf /opt/oracle/product/12.1.0.1.AGT
[oracle@linux01 ~]$

6. Remove the targets associated to that agent from OEM