For 10 points, name this Unix-like operating system whose mascot is a penguin.
Eric Raymond wrote about the model used by this operating system's creator in the essay "The Cathedral and the Bazaar." There is a controversy over the proper name of this operating system, and Richard Stallman insists that its most common name is incorrect. Distributions of this operating system include Debian, Fedora and Ubuntu. Its namesake kernel is used in the GNU Project and was created by Linus Torvalds. For 10 points, name this Unix-like operating system whose mascot is a penguin.
Eric Raymond wrote about the model used by this operating system's creator in the essay "The Cathedral and the Bazaar.
{GNU/Linux}