On Tue, 3 Dec 1996, Joel Klecker wrote:

> booted single user and used the a command line similar to the following
> "cd /;tar xzpf /tmp{base12,misc12,text12,comp12,man12}.tar.gz --unlink",
> don't do this with etc12.tar.gz though(unless you want to wipe out your
> passwd file and your other settings).

Sound advice.  There are minor variations on this, but they all do the
same thing.  Note:  the --unlink flag is a NetBSD extension and is
critical to the success of such an upgrade.

> (Q:
> Does this update binaries currently in use(i.e. /bin/sh or /bin/csh)?)

Yes.  (This is what the --unlink flag accomplishes.)

--scott