Note: On either platform, if you have already installed DB2, FixPak 1 and Spatial Extender, it is important that you also install FixPak 2a.
If you have DB2 with FixPak 2a or above, and you then install Spatial Extender, you will get a warning message saying:
The modification level of the products being installed is lower than that of existing DB2 products. The product may not function properly.
This is because the Spatial Extender installation package installs a number of DB2 FixPak 1 components. Installing Spatial Extender will downgrade those specific components to FixPak 1, leaving your DB2 with a mix of FixPak 1 and FixPak 2a components. To correct this situation, simply reinstall FixPak 2a.