If a problem occurs when you attempt to install WebSphere Application Server - Express for iSeries or a new resource, the first thing you should do is consult the installation documentation for the product. See Install WebSphere Application Server - Express for iSeries in the Installation topic for more information.
For the resources available for determining what the installation problem might be, see the list below:
If an error occurs during installation, a message will be entered in the job log. To get more information about the message, use the Display Message Description (DSPMSGD) command from an CL command line.
If an error occurs when you are installing or configure a resource, typically an error page or message containing error information is displayed. Click the Details button to view more information on the possible cause of the problem.
Check the application server standard output and standard error log files. For information on the application server log files and where they are located, see WebSphere Application Server - Express log files.
Read the release notes: