Here's a tip for the day. I run light room and Photoshop in Virtualbox with Ubuntu as my host system. Of course sometimes I’d like to check out my Raw files from my Nikon D7100 (Still learning) before getting to my virtualbox. Now the problem is that Ubuntu doesn’t read Nikon’s NEF raw files as thumbnails automatically.
So here’s a quick solution, install the following packages:
Now you're good to go, Ubuntu should be able to read Nikon's NEF raw files as thumbnails on your graphical interface.