Extracting changed files list from snapshot

[Lowell Gilbert]

Bernard Dugas <bernard at dugas-family.org> writes:

> I want to extract the list of files changed between 2 snapshots, to be
> able to do efficient backups.
>
> Any idea where to find a document about snapshots internal structure ?
>
> Or if you know any port that already do this :-?

An easier way would be to generate an mtree(1) description for each
snapshot, and using that to compare against other snapshots.  You have
to mount the snapshot for that, though...

-- 
Lowell Gilbert, embedded/networking software engineer, Boston area
		http://be-well.ilk.org/~lowell/