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From: Milan Broz <mbroz@redhat.com>
To: Andreas <andreas@maxxle.de>
Cc: dm-crypt@saout.de
Subject: Re: [dm-crypt] Problem opening device: PBKDF2_HMAC_SHA1: Assertion `iterations != 0' failed
Date: Sun, 02 May 2010 11:55:52 +0200	[thread overview]
Message-ID: <4BDD4C28.7020005@redhat.com> (raw)
In-Reply-To: <1272792218.20273.9.camel@legolas>

On 05/02/2010 11:23 AM, Andreas wrote:
> What i've done:
> ===============
> - Removed the device from the Ubuntu-box (it worked there perfectly)
> - Attached the device to the Knoppix-Box
> - Tried to open the device on the Knoppix-Box
> - Received an error (0.99.1 to 0.99)??

Hm. I almost sure you are hitting the same automatic conversion bug.
(~ only for disk formatted somewhere in version 1.0.3)

I removed that code from recent cryptsetup completely, it need different approach.
But this bug is very rare.

see http://article.gmane.org/gmane.linux.kernel.device-mapper.dm-crypt/4060

If so, luckily it can be easily fixed. If you send me first 4kB
(visible LUKS header) I can fix it for you. (This part doesn't contain keyslots.)

dd if=/dev/≤your_luks_device> of=/backup.img bs=512 count=8

If you agree, please send me the header - backup.img - in private mail,
(optionally encrypted using my gpg key, id is 0xBB21822F on keyservers)

I'll send you back the fixed header (if it is this problem...)
I need anyway more examples of bad header to prepare some "fix" in new code
or at least add some FAQ entry.

Milan

      reply	other threads:[~2010-05-02  9:55 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-02  9:23 [dm-crypt] Problem opening device: PBKDF2_HMAC_SHA1: Assertion `iterations != 0' failed Andreas
2010-05-02  9:55 ` Milan Broz [this message]

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