Applying Patch 20844228: WLS PATCH SET UPDATE 12.1.2.0.6

Applying Patch 20844228: WLS PATCH SET UPDATE 12.1.2.0.6


Pre-Installation Instructions:


- Check if OPatch version is 13.1 or higher

- Ensure access to valid OUI Inventory by running opatch lsinventory -jdk $JAVA_HOME 

- Validate the executables in system PATH after setting $ORACLE_HOME by running 'which opatch', 'which unzip'

- Make sure WebLogic services are down including Admin & Managed Servers if any.

- Download & copy the patch to PATCH_TOP (any staging directory with proper permissions)

Applying the Patch


1. Unzip the patch unzip -d PATCH_TOP p20844228_121200_Generic.zip

2. cd PATCH_TOP/20844228

3. Apply patch by running opatch apply -jdk $JAVA_HOME

4. If patch successful, verify patch applied by running opatch lsinventory | grep 20844228 & start all the services


5. If patch fails for some reason, roll back the patch by running 

$ opatch rollback -id 20844228 -jdk $JAVA_HOME

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