It makes VirtualBox really slow when we're doing all of these prints to
the debug log, so let's reduce these to INFO. Now we can sha512sum files
really quickly in tmpfs, and quake actually plays from an ext2 image
stored there. bochs probably runs a lot better, too.
WARNING: THIS BREAKS PARTITIONS
Until I get partition maps and can produce device entries like
/dev/hda1, partitions will be broken, so DON'T TRY TO BUILD AN IMAGE
WITH THE IMAGE BUILDER.
Hopefully this is all rectified in under 24 hours...
