Date: Thu, 21 Jan 2010 15:31:21 +0100 From: BSD Life <bsd4life@googlemail.com> To: freebsd-geom <freebsd-geom@freebsd.org> Subject: Fwd: geli recovery Message-ID: <e0df4dc61001210631q6378400alb12f74013c97b58@mail.gmail.com> In-Reply-To: <e0df4dc61001210629r111bd679o2f2af99a01814db8@mail.gmail.com> References: <e0df4dc61001210516n2e22a92dwf2b8662f0e973e5@mail.gmail.com> <5709ce311001210622u43233cacw9646cc0306a6b907@mail.gmail.com> <e0df4dc61001210629r111bd679o2f2af99a01814db8@mail.gmail.com>
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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.
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