Date: Mon, 11 Nov 2013 18:32:16 +0800 From: Erich Dollansky <erich@alogt.com> To: symbolics@gmx.com Cc: freebsd-geom@freebsd.org Subject: Re: documentation of GEOM data structures needed Message-ID: <20131111183216.5ec80e9e@X220.ovitrap.com> In-Reply-To: <20131111091836.GA83261@lemon> References: <20131111162400.0bc7dfef@X220.ovitrap.com> <20131111091836.GA83261@lemon>
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Hi Sym, On Mon, 11 Nov 2013 09:18:36 +0000 symbolics@gmx.com wrote: > On Mon, Nov 11, 2013 at 04:24:00PM +0800, Erich Dollansky wrote: > > Hi, > > > > I would need a documentation of the GEOM data structure. A disk got > > damages in a strange way during the process of backing up data. It > > was partitioned with gpart as all my disks using the MBR schema. > > When creating the backup, the system crashed. The disk was not > > usable anymore. I found out that the MBR was overwritten before the > > backup was started while the beginning of the first partition seems > > to be ok. > > > > I hope to be able to recover the data saving me one week of work. > > Hi Erich, > > As I understand things, you believe that your filesystems are okay and > you just want to recreate the MBR so you can try to fsck and mount this is the basic idea. > them? How did you set the disc MBR up in the first place? If you used > the automatic scheme in the installer and you know the size of the I used the manual way creating 6 partitions. > disc, you could reconstruct things that way. What does `gpart show' > look like at the moment? It does not come that far gpart list da0 gpart: No such geom: da0. is all I get. My luck is that I have three disks which are the type but manufactured with some months between. But their sizes differ a bit. I think that I should be able to recover much by just comparing the entries. Erich > > --sym > _______________________________________________ > freebsd-geom@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-geom > To unsubscribe, send any mail to > "freebsd-geom-unsubscribe@freebsd.org"
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