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From: Milan Broz <mbroz@redhat.com>
To: Panagiotis Malakoudis <malakudi@gmail.com>
Cc: dm-crypt@saout.de
Subject: Re: [dm-crypt] Corrupted luks partition, help needed
Date: Thu, 03 Jun 2010 17:51:04 +0200	[thread overview]
Message-ID: <4C07CF68.7090708@redhat.com> (raw)
In-Reply-To: <AANLkTinjoL2jxJxH6KZip99GSIxSxqR3njVxboCqEgO_@mail.gmail.com>

On 06/03/2010 05:32 PM, Panagiotis Malakoudis wrote:
> I have a luks partition which was corrupted by failed disk i/o.
> Examining the partition, the first 512 bytes of the LUKS header is
> correct, then there is a corruption which I am not really sure how many
> sectors affected. Giving the correct key always returns: "No key
> available with this passphrase.". Since the first 512 bytes are correct,
> I guess all key information is unharmed. Is there a way to decrypt the
> partition, even loosing some sectors of data?

If any part of the used keyslot (which is located after visible header,
- in you case starting at sector 8 to sector 264 (hope I calculated it properly),
is modified or lost, you lost that keyslot completely.

Because you have only one active keyslot, you probably lost the whole disk:-(
(Only backup of this keyslot area can help here.)

Milan

  reply	other threads:[~2010-06-03 15:51 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-06-03 15:32 [dm-crypt] Corrupted luks partition, help needed Panagiotis Malakoudis
2010-06-03 15:51 ` Milan Broz [this message]
2010-06-03 16:16   ` Panagiotis Malakoudis
2010-06-03 18:12     ` Milan Broz
2010-06-03 18:05   ` Panagiotis Malakoudis
2010-06-03 20:14     ` Arno Wagner
2010-06-03 20:48       ` Luca Berra
2010-06-03 20:56         ` Christoph Anton Mitterer
2010-06-03 22:07         ` Arno Wagner
2010-06-04  6:05           ` Panagiotis Malakoudis
2010-06-04  8:54             ` Roscoe
2010-06-06 19:57           ` [dm-crypt] cryptsetup administration tool Ali Reza Sajedi

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