I've tried getting this to work on Ubuntu, but for some reason it can't find the data when I run it. Here's what I've done up to this point.
I installed OpenXcom by the following method:
# sudo add-apt-repository ppa:knapsu/openxcom
# sudo apt-get update
# sudo apt-get install openxcom
After that, I found that the installation had created a data folder at /usr/share/openxcom/data. I copied the xcom data folders to that folder. When I launch the game, I get a message reading ERROR: GEODATA/PALLETES.DAT not found. Where is OpenXcom looking for these data files if not /usr/share/openxcom/data?