Hidden Wisdom

       
You can find runes
and meaning staves,
very mighty staves,
very strong staves,
which a mighty sage coloured
and mighty powers made...
       
Do you know how you must cut [them]?
Do you know how you must interpret?
Do you know how you must colour?
Do you know how you must try?
Do you know how you must invoke?

Those verses are from the Havamal, but they could be a warning to a wannabe Linux user. What do I need to make this thing shut off on command? A sacrifice hung on a ash tree, consecrated to Linus Torvalds?

Sense is needed
for the one who travels widely;
everything is easy at home.
He who knows nothing
and sits with wise men
becomes a mockery.