You drank the Kool-Aid and downloaded the awesomeness which is DB2 Express-C. Good job! Next you proceed to install it on Linux with
sudo ./db2setup and boom, instead of a launchpad all you see is a gray window. Now what?
This problem is a known Java bug (resolved in Java 6) that shows up on Linux distros where Compiz effects are enabled. For example, this problem manifests itself in recent Ubuntu releases, including 8.10, where Compiz is enabled by default.
There are a couple of easy ways to solve this problem though. The first is to temporary disable these effects during the installation and turn them back on when you’ve finished installing. In Ubuntu, you can do this by clicking on the Appearance menu, Visual Effects tab and then selecting None. The second method is to run
export AWT_TOOLKIT=MToolkit, before running
A new setup is in the works to solve this issue, but for the time being, you can use the workarounds above to install DB2 Express-C on Linux.
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