It try to figure out how to reboot a mac automatically with a sepcific netboot Image
via bless you can reboot the mac and let it bot from the default netboot image of a specified server. But as long as I understand the documentation you can't specify an image like mentioned here: Bless with specific Image
So I found
https://jamfnation.jamfsoftware.com/discussion.html?id=5756
which doesn't seem to work either ?
Any ideas ?