I tried registering on IBM site to download and explore DB2 for Linux:

https://www.ibm.com/account/profile/us

Our apologies

We are sorry, we are unable to process your request at this time. Please
try again later.


After I entered my information for 4 times, I called the technical
support, entered it for 2 more times, lost my patience and decided that
IBM is obviously not too serious abut DB2 on Linux


--
http://mgogala.byethost5.com