After building the infrastructure to analyse the code in an Ubuntu release I decided to satisfy a simple curiosity and figure out how much GNU software is actually part of a modern distribution. I picked Ubuntu natty (released in April) as a reference, am counting lines of code (LOC) as the rough metric for size of a given project, and am considering only the “main” repository, supposedly the core of the distribution, actually packaged by Ubuntu and not repackaged from Debian.