when Sony released the HDD for the PS2 you could get Linux with it. there was a complete package that came with the Linux dvds, a keyboard, and the 40GB HDD. it was a Playstation 2 branded distro which was a fork of a japanese distro named "Kondara" which was a based on Red Hat. the DE was Window Maker.

I had it, it was pretty dang good in all honesty. The second disk had a bunch of packages on it in case you didn't have a decent internet connection. There's still an community for it today that is still making packages and what have you for it.