NOTE ANY CHANGES YOU MAKE TO THE BOOTBLOCKS HERE. The format of this
file is important - make sure the entries are appended on end, last item
is taken as the current.
1.0: Initial revision.
1.1: Fix FFS and LFS boot from SCSI HD and floppies. Always print version.
1.2: Initialize the screen.
2.0: Rewrite mostly. Support xxboot_ustarfs.
