EM12cR2 - how to clean old guard basic directories after upgrading?

Execution EM12cR2 + 1 on Linux x 86-64.

Anyone know the recommended/supported/correct way to delete older versions of directories based EM12c agent on the managed servers once agents have been upgraded to EM12cR2? This isn't a huge problem, but I have been setting up my agents on the small (2 GB) dedicated volumes and I have not enough space available for the next round of updates unless I get the old stuff, cleared out.

I have a server that has been added to the environment after my upgrade to EM12cR2 and multiple servers that are already followed by the upgrade. The servers where I have updated agents after you install all the EM12cR2 still have copies of the directory of core/12.1.0.1.0 basic agent as well as the new home core/12.1.0.2.0 agent directory. I tried to remove this directory and bouncing the agent, but the agent gets blocked because it cannot locate apparently not some files, it expects to find. Other than to be rejected by the WHO, the officer seems to work very well. I can only unlock the agent successfully if I put the 12.1.0.1.0 directory back in place.

Here's what I see on a leveling agent:
/oraagent> du -sh agent12c
1.5G    agent12c
/oraagent> ls agent12c/core
12.1.0.1.0  12.1.0.2.0
/oraagent> du -sh agent12c/core/*
626M    agent12c/core/12.1.0.1.0
534M    agent12c/core/12.1.0.2.0
/oraagent> emctl status agent
Oracle Enterprise Manager Cloud Control 12c Release 2  
Copyright (c) 1996, 2012 Oracle Corporation.  All rights reserved.
---------------------------------------------------------------
Agent Version     : 12.1.0.2.0
OMS Version       : 12.1.0.2.0
Protocol Version  : 12.1.0.1.0
Agent Home        : /oraagent/agent12c/agent_inst
Agent Binaries    : /oraagent/agent12c/core/12.1.0.2.0
On a host that has never had the EM12cR1 agent installed, I see:
/oraagent> du -sh agent12c
631M    agent12c
/oraagent> ls agent12c/core
12.1.0.2.0
/oraagent> du -sh agent12c/core/*
534M    agent12c/core/12.1.0.2.0
/oraagent> emctl status agent
Oracle Enterprise Manager Cloud Control 12c Release 2
Copyright (c) 1996, 2012 Oracle Corporation.  All rights reserved.
---------------------------------------------------------------
Agent Version     : 12.1.0.2.0
OMS Version       : 12.1.0.2.0
Protocol Version  : 12.1.0.1.0
Agent Home        : /oraagent/agent12c/agent_inst
Agent Binaries    : /oraagent/agent12c/core/12.1.0.2.0
It is interesting the inventory.xml in the oraInventory to the server upgraded yet contains references to the 12.1.0.1.0 directory that seem unnecessary:
<HOME NAME="agent12c2" LOC="/oraagent/agent12c/core/12.1.0.2.0" TYPE="O" IDX="1">
   <REFHOMELIST>
      <REFHOME LOC="/oraagent/agent12c/sbin"/>
      <REFHOME LOC="/oraagent/agent12c/plugins/oracle.sysman.db.discovery.plugin_12.1.0.2.0"/>
      <REFHOME LOC="/oraagent/agent12c/core/12.1.0.1.0/../../plugins/oracle.sysman.db.agent.plugin_12.1.0.2.0"/>
      <REFHOME LOC="/oraagent/agent12c/plugins/oracle.sysman.oh.discovery.plugin_12.1.0.2.0"/>
      <REFHOME LOC="/oraagent/agent12c/plugins/oracle.sysman.oh.agent.plugin_12.1.0.2.0"/>
      <REFHOME LOC="/oraagent/agent12c/plugins/oracle.sysman.emas.discovery.plugin_12.1.0.3.0"/>
      <REFHOME LOC="/oraagent/agent12c/plugins/oracle.sysman.xa.discovery.plugin_12.1.0.3.0"/>
   </REFHOMELIST>
</HOME>
[...]
<HOME NAME="OraHome6" LOC="/oraagent/agent12c/core/12.1.0.1.0/../../plugins/oracle.sysman.db.agent.plugin_12.1.0.2.0" TYPE="O" IDX="8">
   <DEPHOMELIST>
      <DEPHOME LOC="/oraagent/agent12c/core/12.1.0.2.0"/>
   </DEPHOMELIST>
</HOME>
Upgrades the agent were all made through the agent upgrade console without incident. The server SGD itself also contains the 12.1.0.1.0 and the 12.1.0.2.0 in the base directory of agent based. The fact that the agent on the server who never had installed 12.1.0.1.0 work well would seem to indicate that the binary 12.1.0.1.0 are not required for correct functionality, but I'm not clear on how to remove them. I would like to avoid losing the targets controlled by these agents and have to recreate their and their jobs, and so on.

Any thoughts? Has anyone else had the same problem occur in their environment?

If you're talking about the target upgrade agent to 12.1.0.2 and he has dir left basic behind, then you can remove only the contents of the $AGENT_BASE_DIR/core/12.1.0.1.0 directory and make sure that
the $AGENT_BASE_DIR/core/12.1.0.1.0 directory exists

Just FYI: for the next version of the EM, we have a correct feature: signal out of process where all swinging old houses of oracle, their pints of foot disc more SGD artifacts aside, for upgrade of agents can be removed.

Upgrade guide is also get updated with the same information, should be live within 2-3 days. We told you the same thing coming from our customer like AT & T, Fedility... etc.

I also want to share information on the thread:
Re: How to remove 12.1.0.1 House WHO when it contains the 12.1.0.2 agent s/w?

Script/steps to move the agent middleware House old House again while doing the upgrade from 12.1.0.1 to 12.1.0.2 who is also ready. We have also provided this script to a customer and they checked this script (works for them :))

How to migrate the BASE of AGENT under Middleware home DIRECTORY to another location outside the home of Middleware? (Doc ID 1520010.1)

New upgrade guide is get updated with this issue of note

Tags: Enterprise Manager

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