WebSphere Application Server - Express may not run properly if all of the required software prerequisites are not installed. If the server does not start, run the prerequisite validator. It verifies your installation, ensures that you have the appropriate prerequisite software and PTFs installed, and verifies configuration settings required by WebSphere Application Server - Express.
To run the prerequisite validator, run the checkprereqs script from the Qshell command line.
cd /QIBM/ProdData/WebASE51/ASE/bin
checkprereqs
For more information and options for this script, see The checkprereqs script.
Note: The prerequisite validator can also be run from the servicetools script. For more information see The prerequisite validator tool.