Installing a patch in WebLogic 12.2.1

Interim Patch for Bug: 22644507

Platform Patch for : Generic

Product Patched : ORACLE WEBLOGIC SERVER

Product Version      : 12.2.1.0.0

1.Prerequisites

Download the patch from the below link

http://www.oracle.com/technetwork/middleware/weblogic/downloads/wls-main-097127.html

2. Stop all servers (AdminServer and all Managed server(s)).

Patch ex: p22644507_122100_Generic.zip

3.Unzip the patch zip file into the new directory( here i am using patchop name).

unzip –d patchop p22644507_122100_Generic.zip

Set your current directory to the directory where the patch is located.

OPatch Directory

I have created one new directory (patchop) under $MW_HOME/OPatch

4. To check the  list of patches in our environment

./opatch lsinventory

To check the List of patches

Here my environment have 6 patches(see above screenshot) and now I am adding one more patch

$MW_HOME/OPatch/patchop/22644507

5.Run OPatch to apply the patch

$opatch apply

OPatch Apply

check  the patch is installed or not by using the below command.
[12c@localhost OPatch]$ ./opatch lsinventory

6.Run OPatch to uninstall the patch.

$ opatch rollback -id  22644507

Rollback the Patch

7. Check the Patch is uninstalled or not by using this command

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[12c@localhost OPatch]$ ./opatch lsinventory