Date: Thu, 21 Jan 2010 17:12:22 +0200 From: Alaksiej C <ac@belngo.info> To: BSD Life <bsd4life@googlemail.com> Cc: freebsd-geom <freebsd-geom@freebsd.org> Subject: Re: geli recovery Message-ID: <5709ce311001210712k7bc0584m658ce091813f4585@mail.gmail.com> In-Reply-To: <e0df4dc61001210631q6378400alb12f74013c97b58@mail.gmail.com> References: <e0df4dc61001210516n2e22a92dwf2b8662f0e973e5@mail.gmail.com> <5709ce311001210622u43233cacw9646cc0306a6b907@mail.gmail.com> <e0df4dc61001210629r111bd679o2f2af99a01814db8@mail.gmail.com> <e0df4dc61001210631q6378400alb12f74013c97b58@mail.gmail.com>
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Generally, yes, "geli restore" would save you. Of course, BIOS firmware could take enough space to harm not only metadata, but some data also, but not much. As Ivan Voras mentioned, geli in FreeBSD8 does metadata backup automatically by default, so check your /var/backups/ On Thu, Jan 21, 2010 at 4:31 PM, BSD Life <bsd4life@googlemail.com> wrote: > Sry, didn't sent to the list (googles webmail sucks ...) > > ---------- Forwarded message ---------- > From: BSD Life <bsd4life@googlemail.com> > Date: Thu, 21 Jan 2010 15:29:56 +0100 > Subject: Re: geli recovery > To: Alaksiej C <ac@belngo.info> > > 2010/1/21, Alaksiej C <ac@belngo.info>: >> Your data is lost. >> >> Explanation: some BIOSes do backup themselves on "unused" drives, at >> the end of the HDD space (Google for "Host Protected Area"). The >> criteria for detecting "unused" drive is first sector's contents >> (AFAIK): is it MBR or not. >> >> When you inserted your drive to that Windows box, BIOS decided it is >> not used (no MB and backed itself up to it. As GELI's control block is >> residing at the end of encrypted container, it is gone forever. >> >> So, it's neither GELI's nor Windows bug, it is just dangerous BIOSes' >> feature. >> >> -- >> Best regards, >> Alaksiej >> > > Ok, that sounds resonable, so I should always backup the metadata of a > disc for such cases. If I had a backup, I could just use the "geli > restore" functionality and it would be fine again, right? > > Anyway, thanks for your answer. > _______________________________________________ > 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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