How to apply fix packs for Cognos

Problem:

which steps are required to install fix packs on an existing IBM Cognos installation.


Solution:
Since fix packs involves modified binaries, they need to be linked and working all in conjunction with each other. You cannot have a different versions of binaries working together perfectly.
That's why cmplst.txt file is there in every IBM Cognos installation to make everything work in sync with version.


NOTE: Before you start applying any fix pack make a backup of the repository database (content store) first!

If you have a IBM Cognos deployment working on (default) servlet container like apache tomcat, all you need to do is:

1. Stop IBM Cognos service.
2. Apply fix pack installables.
3. Start IBM Cognos service and you'll be done.


If you are running IBM Cognos on an application server like IBM Websphere or JBoss etc, the steps are little different:

1. Stop IBM Cognos service.
2. Apply fix pack installables.
3. Rebuild the ear/war files.
4. Redeploy the ear/war file.
5. Start IBM Cognos service.



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