From: Milan Broz <mbroz@redhat.com>
To: dm-crypt@saout.de
Subject: Re: [dm-crypt] volume unrecognized
Date: Thu, 27 Aug 2009 19:03:32 +0200 [thread overview]
Message-ID: <4A96BC64.9020308@redhat.com> (raw)
In-Reply-To: <20090827162838.GB24973@resivo.wgnet.de>
Jonas Meurer wrote:
>> cryptsetup luksDump $DEVICE
>>
>> Find the payload number
>>
>> dd if=$DEVICE of=luks_header_bakup count=$PAYLOAD
>>
>> To restore them just reverse if and of in dd
>>
>> dd if=$luks_header_backup of=$DEVICE count=$PAYLOAD
>
> you should add bs=1 to the dd commandline. default is 512, which would
> result in $PAYLOAD*512 bytes being read/written.
Nope, payload offset in dump _is_ in 512 byte sector units.
bs=512 is correct.
(You will save all (even unused) keyslots here, but this is not problem)
Milan
next prev parent reply other threads:[~2009-08-27 17:03 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-27 14:31 [dm-crypt] volume unrecognized Jacques-Olivier KAPPS
2009-08-27 14:47 ` Jonas Meurer
2009-08-27 15:11 ` Jacques-Olivier KAPPS
2009-08-27 15:45 ` Moji
2009-08-27 14:57 ` Heinz Diehl
2009-08-27 15:20 ` Jacques-Olivier KAPPS
2009-08-27 15:44 ` Moji
2009-08-27 16:28 ` Jonas Meurer
2009-08-27 17:03 ` Milan Broz [this message]
2009-08-27 18:39 ` Jonas Meurer
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