How to create mtree files?

[Lowell Gilbert]

freebsd-questions at auscert.org.au writes:

> I would like to use the mtree utility to confirm no changes have
> occurred to system files since 'make installworld', similar to that
> possible with 'mtree -f /cdrom/5.4-RELEASE/base/base.mtree' on a
> release installation. This would also give the added advantage of
> being able to determine the current buildlevel of an installed
> system, I believe.  Is it possible/easy to create new mtree files
> after the buildworld or installworld process? I've looked at the
> Release Engineering docs but it seems more than what I'd like to
> do. I should add that I am running tripwire, but I really want to
> have a quick way to verify which files were part of which installworld.

"man 8 mtree" has full details.

"mtree -c -p /" is the start of what you're looking for.