Error installing Forms/Reports Server on linux m/c having EBS R12 installed

Question

Hi,
We are trying to install Forms and Reports server (Oracle Application Server 10gR2 (10.1.2.0.2) Forms and Reports Services) on a linux x86 box. The box already has Oracle E-business Suite R12 running on it. Our end goal is to install Oracle Transport Management (OTM), which requires Oracle Forms and Reports server to run its reports. When installing Forms and Report server I am getting following error. During installation, I gave a different set of ports to be used by Oracle Forms/Reports Apps server (and not the default) in staticports.ini and ensured that those ports are available. Any idea what could be the issue. If the issue is due to port conflict, how do I find which is the conflicting port. Also, is it possible to re-use Oracle Applications' Forms/Reports server for other applications like OTM.
Get the following error during installation of Oracle Application Server 10gR2 (10.1.2.0.2) Forms and Reports Services:
. Please also check the logs located at
ORACLE_HOME/dcm/logs to determine why DCM was unsuccessful in updating
the configuration files on disk. Some possible causes are:
* permissions on files
* file contention issues on Windows NT
* internal Oracle error
After resolving the problem that prevented DCM from updating the configuration
files, you may use the dcmctl resyncInstance command to resolve the problem.
Alternatively, you can stop and then restart the active dcmctl or EMD
process and resyncInstance will automatically be performed.
Resolution:
Base Exception:
java.net.BindException
Address already in use
java.net.BindException: Address already in use
at java.net.PlainSocketImpl.socketBind(Native Method)
at java.net.PlainSocketImpl.bind(PlainSocketImpl.java:331)
at java.net.Socket.bind(Socket.java:498)
at java.net.Socket.<init>(Socket.java:307)
at java.net.Socket.<init>(Socket.java:124)
at oracle.ias.sysmgmt.clustermanagement.OpmnAgent.openOEMSSession(Unknown Source)
at oracle.ias.sysmgmt.clustermanagement.OpmnAgent.openOEMSSession(Unknown Source)
at oracle.ias.sysmgmt.clustermanagement.OpmnAgent.sendHTTPRequest(Unknown Source)
at oracle.ias.sysmgmt.clustermanagement.OpmnAgent.getOpmnProcStatus(Unknown Source)
at oracle.ias.sysmgmt.clustermanagement.OpmnAgent.getProcessStatus(Unknown Source)
at oracle.ias.sysmgmt.clustermanagement.OpmnAgent.getComponentProcessStatus(Unknown Source)
I do now have much experience on DBA side, so my question may be very basic, but pls bear with me.
Thanks.
Namit

Answer 1

So ...
After a lot of searches, it was necessary a help from a Weblogic Administrator to find out what was going on with the installation process. The problem was with the memory allocation to the Weblogic VM. The process EMGC_OMS1 could not be started cos it was not possible to create a VM into SERVERADMIN.
With just my DB experience I could not find any logs besides emctl.log and that one that it's shown in OEM Installler interface. The Weblogic Administrator was browsing the HOME where the Weblogic was installed and he found logs that showed the error telling where the problem was. Even downloading the OEM 12c 32bit, it was allocated memory to the java as if it was 64bit. The solution was decreasing the values of memory and clicking in Retry. So, my OEM Cloud Control 12c it's working now.
Regards
Bruno Palma