OPMN is failing to start. OPMN must be started in order to correctly install and configure the patchset

Recently we were upgrading Oracle E-Business Suite from 12.0.4 to 12.1.2 for which Web home needs to be upgraded from 10.1.3.0 to 10.1.3.5.

While running patch 8626084 (PLACEHOLDER BUG TO UPLOAD AS 10.1.3.5 PATCH-SET ON ARU) on IBM-AIX Power 64 System we have encountered an error stating “OPMN is failing to start. OPMN must be started in order to correctly install and configure the patchset“.

I was able to stat the OPMN services from backend but the oui was unable to recognise whether the services are up or now.

Then finally we have followed below steps which fixed the issue and we were able to upgrade the patchset to 10.1.3.5

1. Please confirm that patch 7359933 – contains the latest template changes for 10.1.3.5

2. Verify that upgrade to JDK 1.6 as per “Step 6 Upgrade Oracle E-Business Suite Release 12
JDK to Java 6.0 latest update has been performed.
- Reference Step 7 Upgrade Oracle E-Business Suite Release 12 JDK to Java 6.0 latest update (Recommended)
Oracle recommends you to upgrade Oracle E-Business Suite Release 12 Java with the latest Java 6.0 update.
Of Note Note 454811.1

3. Verify that the inventory is correct on the target instance. If any questions or concerns,
follow steps outlined in Metalink Note 742477.1 :
How to create or update the Central Inventory for Applications R12?

4. Review Section 7: Known Issues -> In Note 454811.1
and Appendix A: Additional IBM AIX-Specific 10.1.3.5 Patch Set Installation Instructions
related to AIX
Implement the suggested changes to $IAS_ORACLE_HOME/opmn/bin/opmctl as documented in the
README of patch 8461753.

5. Please perform the following:
a. Edit the $IAS_ORACLE_HOME/install/oc4jnames.txt: it should contain:
forms
oacore
b. Source the 10.1.3 ORACLE_HOME
# cd $INST_TOP/ora/10.1.3
# . ./_.env
c. Execute the following
# cd $IAS_ORACLE_HOME/install
# opmnctl status -app >ascontrol_status
# chmod u-w ascontrol_status

Reference the following notes:
Note 849738.1 R12 : Installation Issue with AIX OPMN Patch 10.1.3.4 Using Note : 454811.1
Note.864500.1 Patch 8461753 fails with 0403-057 Syntax error:

Kindly mail us on consult.appsdba@gmail.com if this help in fixing your issue.

- Farhan Shaikh