From: Arno Wagner <arno@wagner.name>
To: dm-crypt@saout.de
Subject: Re: [dm-crypt] yet another header reconstruction question
Date: Wed, 24 Feb 2016 17:24:55 +0100 [thread overview]
Message-ID: <20160224162454.GA7961@tansi.org> (raw)
In-Reply-To: <trinity-1c7f488e-6327-4124-970d-b05eb5a52dfb-1456303382695@3capp-webde-bap40>
Excellent. Also, thank you for the feedback!
Regards,
Arno
On Wed, Feb 24, 2016 at 09:43:02 CET, Florian Dotzer wrote:
>
>
> On 02/18/2016 02:51 AM, Florian Dotzer wrote:
> >> I tried dd on files to replace the first 512 bytes of a file , but
> >> the target file was completely replaced with this command :
> >>
> >> dd if=512_bytes_with_fixed_header of=file_with_first_64_MB_of_md0 bs=512 count=1
>
> > When the target is a file, you need to include "conv=notrunc" so
> > that the file will not be truncated to zero length when it is
> > opened. That is not an issue when the target is a block device,
> > but there is no harm in using "conv=notrunc" there, too.
>
> Thanks to Bob , Arno , Sven and all others. I was able to remount
> with the corrected LUKS Header .
>
> Now I have a backup of the header and a backup of the key.
>
> currently I am backing up all data
>
> Please enjoy a virtual drink of your choice ;-))
>
>
> Sorry lsblk command was not available so I cannot report any output of that.
>
> best wishes to all , Florian
> _______________________________________________
> dm-crypt mailing list
> dm-crypt@saout.de
> http://www.saout.de/mailman/listinfo/dm-crypt
--
Arno Wagner, Dr. sc. techn., Dipl. Inform., Email: arno@wagner.name
GnuPG: ID: CB5D9718 FP: 12D6 C03B 1B30 33BB 13CF B774 E35C 5FA1 CB5D 9718
----
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If it's in the news, don't worry about it. The very definition of
"news" is "something that hardly ever happens." -- Bruce Schneier
next prev parent reply other threads:[~2016-02-24 16:24 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mailman.1.1455879602.30698.dm-crypt@saout.de>
2016-02-24 8:43 ` [dm-crypt] yet another header reconstruction question Florian Dotzer
2016-02-24 16:24 ` Arno Wagner [this message]
[not found] <mailman.1.1455706801.5962.dm-crypt@saout.de>
2016-02-18 8:51 ` Florian Dotzer
2016-02-18 9:34 ` Michael Kjörling
2016-02-18 10:26 ` Sven Eschenberg
2016-02-18 12:53 ` Robert Nichols
2016-02-16 11:32 Florian Dotzer
2016-02-16 12:01 ` Michael Kjörling
2016-02-16 15:01 ` Arno Wagner
2016-02-16 19:41 ` Sven Eschenberg
-- strict thread matches above, loose matches on Subject: below --
2016-02-15 16:07 [dm-crypt] Yet " Florian Dotzer
2016-02-15 17:04 ` Arno Wagner
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