OIM 11g R2 PS3- Errors When Applying One-off Patches During Oracle Identity and Access Management Installation

During the Oracle Identity and Access Management 11g Release 2 (11.1.2) installation, you may see Opatch errors when the installer applies one-off patches. The following errors are displayed in the logs:

Error-1

 OPatch failed with error code 39 
]     
stderr=[[ Error during Prerequisite for apply Phase]. Detail: OPatch 
failed during prerequisite checks: Prerequisite check 
"CheckPatchApplicableOnCurrentPlatform" failed. 
Prerequisite check "CheckApplicable" failed. 
]

Description and Workaround:

These are warning messages which can be ignored.

Error-2

OPatch failed with error code 25 
]     
stderr=[[ Error during Oracle Home discovery Phase]. Detail: OPatch 
failed: ApplySession failed to prepare the system. 
To run in silent mode, OPatch requires a response file for Oracle 
Configuration Manager (OCM). 
Please run "/scratch/FMW_OAM/Oracle_OAM/OPatch/ocm/bin/emocmrsp" to generate 
an OCM response file. The generated response file 
can be reused on different platforms and in multiple OPatch silent installs. 
To regenerate an OCM response file, Please rerun 
"/scratch/FMW_OAM/Oracle_OAM/OPatch/ocm/bin/emocmrsp".

Description and Workaround:

This issue occurs if the OPatch version in the MW_HOME is 11.1.0.10.x. The workaround for this issue is to revert back to OPatch version 11.1.0.9.9 before applying one-off patches.

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