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Date: Fri, 25 Oct 2013 06:59:56 -0600 (MDT)
From: Warren Block <wblock@wonkity.com>
To: Matthias Apitz <guru@unixarea.de>
Subject: Re: tool for checking integrity of a file system DUMP
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On Fri, 25 Oct 2013, Matthias Apitz wrote:

> I'm using dump(8) for backups. Is there some tool to check the integrity
> of the produced dump? A 'restore -t -f ....' seems to look only into the
> header of the dump and not reading the full file...
>
> Ideally would be a binary comparisation of the files in the dump with
> the original files on disk, ofc directly after the dump done in single
> user mode.

It may be possible to use mtree(8)'s cksum to compare the original files 
with those in the backup.