Date: Tue, 8 Jan 2013 20:39:37 +0200 From: Ciprian Dorin Craciun <ciprian.craciun@gmail.com> To: schultz@ime.usp.br Cc: freebsd-questions@freebsd.org Subject: Re: Backup with mtree and rsync? Message-ID: <CA%2BTk8fwLQNZA3TRG_kDbe45uTmQ2_Q2_1FKLdVRBivKV04xLeg@mail.gmail.com> In-Reply-To: <20130105161256.49797e7viwwtqfc8@webmail.ime.usp.br> References: <20130105161256.49797e7viwwtqfc8@webmail.ime.usp.br>
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On Sat, Jan 5, 2013 at 8:12 PM, <schultz@ime.usp.br> wrote:
> I have been wondering whether it is possible to create a backup system
> using mtree and rsync. Essentially, the user would create a mtree
> specification of the source directory and copy it over to the destination
> directory with rsync. Any changes in the destination could then be
> detected before restoring with the mtree specification, which should
> contain strong hashes of the files and should not contain the nlink
> keyword.
A little bit off-topic, but there is a small tool that does
something similar to your suggested `mtree` usage, but specifically
tailored for backups, `rdup`:
http://miek.nl/projects/rdup
Although I've not used it myself (I use `rdiff-backup` and on
Linux), the idea is pretty similar with what you want to achieve:
* you run `rdup` with an old "descriptor file" plus a target path,
and in turn it generates:
* a new "descriptor file";
* a list of files that should be backed up;
* you then decide what you do with the list of files to be
backed-up (i.e. put them in a `tar`, `rysnc` them to a server, etc.);
Hope it helps,
Ciprian.
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