See, you know, there's a thing as lost Linux distros. Some distros survive through time, like Yggdrasil Linux, and then some get delegated to the list of long lost ones.
Case in point: Kondara MNU/Linux. A weird Japanese Linux distro, which is unique in one regard: it became the basis for the "Linux for PlayStation 2" distro; yet the original PC/DEC Alpha versions fell of the face of this planet, and while there's a lot of references w/r/t Kondara on Internet, no .iso was ever recovered.
Even more, Kondara-based PS2 Linux distro does not run on emulators yet, at all. The only saving grace is that developers of Kondara later started a Momonga Linux distro in 2005, and it is indeed completely backed up on the Internet now, starting from version 1.0