Date: Sat, 31 Jan 2015 06:52:48 +0100 From: Polytropon <freebsd@edvax.de> To: Moritz Wilhelmy <moritz@wzff.de> Cc: freebsd-questions@freebsd.org Subject: Re: dump(8) file format Message-ID: <20150131065248.d1c295f9.freebsd@edvax.de> In-Reply-To: <20150130192351.GR16100@barfooze.de> References: <20150130192351.GR16100@barfooze.de>
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On Fri, 30 Jan 2015 20:23:51 +0100, Moritz Wilhelmy wrote: > Hello, > > Just wondering: Is there any documentation regarding the format of FFS > dumps generated by dump(8)? The source code provides documentation. Have a look at the contents of /usr/src/sbin/dump as well as of /usr/src/sbin/restore. You could say that the file /usr/src/sbin/restore/restore.h has a "file format description" of dump files. > I'd be interested in poking around in my disk dumps with a perl script > or something. --- Perhaps one could even write a fuse file system that > can union-mount multiple layers of FFS dumps read-only? That sounds a bit complicated, as the files are, if I remember correctly, sequencial files, so you'd probably have to "preprocess" the whole file. Note that it's not a file archive, but a file _system_ dump. But maybe obtaining "header informations" is sufficient for some imaginable purposes? -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...
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