Installation of WebSphere Application Server fails with MD5 sum mismatch or ZipException error

Technote (FAQ)
Problem
Encountering one or both of the following errors indicates corrupt installation packages: MD5 sum mismatch, or java.util.zip.ZipException: incorrect data check.
Cause
A WebSphereŽ Application Server installation might fail due to a corrupt installation package. Either of the following messages might indicate a corrupted installation package and appear in the installation logs written to the install_root\logs directory:
  • MD5 sum mismatch
  • java.util.zip.ZipException: incorrect data check

Example
In one case, these errors were observed in the Mq_install.log file which is written to the install_root\logs directory:

error: unpacking of archive failed on file
/opt/wemps/bin/wempschangetrace;3ec52928: cpio: MD5 sum mismatch
wmsetup: 16May03 13:08:59 ERROR: Return code 10 from rpm -i
Solution
If the installation packages were unpacked from an archive that was downloaded to the server, try downloading them again. If you are downloading through FTP, make sure that the files are downloaded in binary mode.

If these installation packages were installed or copied from a CD, clean the CD and re-install. If the problem persists, test the CD in a different system to see if the problem is caused by the CD media.











Document Information

Product categories: Software, Application Servers, Distributed Application & Web Servers, WebSphere Application Server, Install
Operating system(s): Linux, Linux zSeries
Software version: 3.5, 4.0, 5.0, 5.1, 6.0
Software edition: Edition Independent
Reference #: 1141335
IBM Group: Software Group
Modified date: 2004-05-14