install.gz	An ELF kernel with an internal ramdisk filesystem
		suitable for installing or upgrading your system.
		This kernel can be booted off an existing system that
		can boot ELF kernels.  Pre 1.4 NetBSD/pmax systems
		can install the two stage bootblocks from
		../../installation/misc/bootblocks.tgz so they can
		boot ELF kernels.

install.ecoff.gz An ECOFF version of the above kernel suitable for
		netbooting.

nfsnetbsd.gz	A small ECOFF kernel suitable for netbooting on systems
		with PROM's that can't load the full size install kernel.
		You'll also need an NFS root filesystem set up with the
		contents of ../../installation/netboot/diskimage.tgz