Extracting changed files list from snapshot

Lowell Gilbert freebsd-questions-local at be-well.ilk.org
Tue Dec 16 20:36:22 UTC 2008

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

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