only interesting for debugging
put exception in the logger
- bootstrap from repo working
TODO:
  * boostrap from OBS image
  * bootstrap from ISO
- network is using virtio, but we should add some
  AI to disable it if not supported
URI.join does not act like File.join
Refactor the code for bootstraping so that we can use
it in different bootstrap methods.
ISO bootstrap working
- cleaned up Vmit::VFS code
- Fedora bootstrap working at least for 16. not 18
- Detection of type of media/distro
- Unit tests for vfs