unicorn Since you're on NetBSD, run this command as root:
cat /etc/mtree/set.[bcg-x]* | mtree -e -p /
You can ignore (for the time being, but, I really must file a PR for this) the handful of errors in the compat libraries. If there are no other mis-matches, then your HW is suspect. If there are more mis-matched checksums, then you either have a bad install or bad HW. Do a
fsck using the install image.