Sorry for spamming.

I created a document detailing on how to clean old (or new) files from 
your netbsd installation.

Due to sets being just a tar files, no extra steps are taken when 
installing or upgrading netbsd. This could leave some old files behind 
and cause unexpected side effects.
The document attempts to explain how to clean these files, so only files 
that are in the sets left on your filesystem.

The provided scripts could be expanded to report all files that are 
different size or date that the files in the sets.

Location of the document is:
http://restorecd.homeunix.org/NetBSD/cleanup.html

All feedback, including negative is welcome.

Thanks,
Alex