NetBSD/amiga now has two-stage booter

Michael L. Hitch has updated NetBSD/amiga -current to have a two-stage booter.

The first stage is bootxx_ffs (for ffs boot partitions) or bootxx_fd (for bootable floppy disk). These locate, load, and execute the second stage loader boot.amiga. The console screen is created and passed to the second stage loader.

The second stage loader uses loadfile() to load the kernel image, which can be either a.out or ELF format, and can also be compressed (via gzip(1)). It will load a kernel file from ffs file systems or the ustarfs used on floppy disks.