To upgrade weblogic 12.1.2 to 12.1.3 , we need to follow 2 below steps.

1. Install new weblogic binary 12.1.3
2. Reconfigure weblogic using reconfig.sh scipt.

Install weblogic binary (12.1.3)

Download and unzip the weblogic 12.1.3 software on the server.

execute the jar file as

java –jar fmw_12.1.3.0.0_wls.jar

Note – > Make sure xlock DISPLAY is set properly to enable GUI screen

 

 

 

 

 

Now we have successfully installed the Weblogic binary. Lets proceed with the reconfig.

2.  Upgrade using reconfig tool.

cd $<NEW_ORACLE_HOME>/oracle_common/common/bin

./reconfig.sh

 

— Provide current domain path:

 

 

Keep the datasource settings as it is. If required we can change them later, once reconfig is successful.

 

Keep the details of deployments and data sources as it is.

 

We have successfully completed the upgrade. Now start the Admin and managed servers on the Weblogic server and validate the version.