
1) Ubuntu derivative
Found on
https://www.crosswordclues.com/clue/mythbuntu

Mythbuntu is a media center operating system (OS). It is based on Ubuntu, integrates the MythTV Media center software as its main function, and does not install with all of the programs included with Ubuntu. Following the principles of KnoppMyth and Mythdora, Mythbuntu is designed to simplify the installation of MythTV on a home theater PC. After ...
Found on
http://en.wikipedia.org/wiki/Mythbuntu
No exact match found.