Description of files found in .../NetBSD-1.3.1/i386/installation:

This directory contains installation utilities for the NetBSD
distribution. The contents of these files are described fully in the
INSTALL document.

The floppies/ directory contains boot floppies for distribution --
these are used to bootstrap NetBSD installation.  The misc/ directory
contains numerous utilities (most of which run under DOS) to assist in
preparing a system for installation.  See INSTALL for details.

Every directory contains several checksum files (BSDSUM, CKSUM, MD5, &
SYSVSUM) that contain checksums of all the other files made with the
cksum(1) utility. The MD5 checksums made with "cksum -m" are
considered the "safest", followed by the CKSUM POSIX-style checksums
made with the plain "cksum" command. Please check the integrity of
your distribution against one of these sets of checksums if
possible. The BSDSUM and SYSVSUM files contain checksums made with the
historical BSD and System V checksum utilities and are provided for
those with no other checksum utilities available.