Comment # 9 on bug 1032452 from Dimitris Karakasilis

In any case, the default script is what will be used if no script is defined. I
think is makes sense to include it even if it doesn't work on some of our
images. A user might want to bootstrap a minion using whatever image (OpenSUSE,
Ubuntu etc). Similarly, we might want to include the rest of the scripts
provided by the upstream project. These scripts are meant to run on the minions
and they should only match the minion's OS, which could be anything.