From: John Wells <jbwellsiv@gmail.com>
To: dm-crypt <dm-crypt@saout.de>
Subject: Re: [dm-crypt] "not a valid LUKS device" after distro change
Date: Wed, 20 Aug 2014 12:18:33 -0400 [thread overview]
Message-ID: <CADt3ZtscbX-rmMt++aXme9Oiu3sxiBW_MD_CGJM_b=t+iMaerQ@mail.gmail.com> (raw)
In-Reply-To: <20140820090956.GA25262@tansi.org>
[-- Attachment #1: Type: text/plain, Size: 5188 bytes --]
Thanks Arno.
Something definitely looks amiss:
$ sudo head -c 1024 /dev/FINALFRONTIER_VG/HOME_LV | hd
00000000 47 4e 55 20 50 61 72 74 65 64 20 4c 6f 6f 70 62 |GNU Parted
Loopb|
00000010 61 63 6b 20 30 00 00 00 00 00 00 00 00 00 00 00 |ack
0...........|
00000020 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
|................|
*
00000400
$ sudo head -c 1024 /dev/MORE_VG/MORE_LV | hd
��ޭ
00000000 4c 55 4b 53 ba be 00 01 61 65 73 00 00 00 00 00
|LUKS....aes.....|
00000010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
|................|
00000020 00 00 00 00 00 00 00 00 78 74 73 2d 70 6c 61 69
|........xts-plai|
00000030 6e 36 34 00 00 00 00 00 00 00 00 00 00 00 00 00
|n64.............|
00000040 00 00 00 00 00 00 00 00 73 68 61 31 00 00 00 00
|........sha1....|
00000050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
|................|
00000060 00 00 00 00 00 00 00 00 00 00 10 00 00 00 00 40
|...............@|
00000070 4e 94 98 c0 51 a9 25 bb 74 73 88 a4 a7 6e c7 d3
|N...Q.%.ts...n..|
00000080 6f 18 71 fa 94 9a f4 5e d1 e8 5b 1a 34 3a 9f 9f
|o.q....^..[.4:..|
00000090 1d 79 1f 61 f5 dd 98 09 e1 d6 2e ed c4 29 af 1a
|.y.a.........)..|
000000a0 23 c9 59 da 00 00 77 a1 36 63 63 31 38 38 64 62
|#.Y...w.6cc188db|
000000b0 2d 63 63 64 62 2d 34 63 38 66 2d 39 37 62 32 2d
|-ccdb-4c8f-97b2-|
000000c0 65 34 31 31 39 38 65 63 36 65 34 34 00 00 00 00
|e41198ec6e44....|
000000d0 00 ac 71 f3 00 01 df d7 79 85 dd f0 29 59 98 63
|..q.....y...)Y.c|
000000e0 0b 69 80 fe 48 61 8c 40 5b 3b 57 0f 82 9c ae 90 |.i..Ha.@
[;W.....|
000000f0 36 57 45 e2 03 82 26 c5 00 00 00 08 00 00 0f a0
|6WE...&.........|
00000100 00 00 de ad 00 00 00 00 00 00 00 00 00 00 00 00
|................|
00000110 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
|................|
00000120 00 00 00 00 00 00 00 00 00 00 02 00 00 00 0f a0
|................|
00000130 00 00 de ad 00 00 00 00 00 00 00 00 00 00 00 00
|................|
00000140 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
|................|
00000150 00 00 00 00 00 00 00 00 00 00 03 f8 00 00 0f a0
|................|
00000160 00 00 de ad 00 00 00 00 00 00 00 00 00 00 00 00
|................|
00000170 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
|................|
00000180 00 00 00 00 00 00 00 00 00 00 05 f0 00 00 0f a0
|................|
00000190 00 00 de ad 00 00 00 00 00 00 00 00 00 00 00 00
|................|
000001a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
|................|
000001b0 00 00 00 00 00 00 00 00 00 00 07 e8 00 00 0f a0
|................|
000001c0 00 00 de ad 00 00 00 00 00 00 00 00 00 00 00 00
|................|
000001d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
|................|
000001e0 00 00 00 00 00 00 00 00 00 00 09 e0 00 00 0f a0
|................|
000001f0 00 00 de ad 00 00 00 00 00 00 00 00 00 00 00 00
|................|
00000200 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
|................|
00000210 00 00 00 00 00 00 00 00 00 00 0b d8 00 00 0f a0
|................|
00000220 00 00 de ad 00 00 00 00 00 00 00 00 00 00 00 00
|................|
00000230 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
|................|
00000240 00 00 00 00 00 00 00 00 00 00 0d d0 00 00 0f a0
|................|
00000250 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
|................|
Yes, even though Fedora 20 will mount neither volume, Ubuntu 14.04 will
mount the /dev/MORE_VG/MORE_LV partition.
Thanks,
John
On Wed, Aug 20, 2014 at 5:09 AM, Arno Wagner <arno@wagner.name> wrote:
> On Wed, Aug 20, 2014 at 00:22:29 CEST, John Wells wrote:
> > Thanks for your response. This is the result of luksDump on the
> container:
> >
> > # cryptsetup luksDump /dev/FINALFRONTIER_VG/HOME_LV
> > Device /dev/FINALFRONTIER_VG/HOME_LV is not a valid LUKS device.
>
> Ah, sorry. Did not see that access completely failed.
> That means the header was at least partially overwritten.
>
> Can you post or send me a hex-dump of the first 1024 bytes
> of this device and the other one?
>
> Command to do so is, e.g.
>
> head -c 1024 /dev/FINALFRONTIER_VG/HOME_LV | hd
>
> This will not compromise your security.
>
> > I will try to find the time to recreate the entire scenario. Do you think
> > the current container I'm able to open is at risk of corruption as well?
>
> Yes. Something seems to be running amok.
>
> Another queston: After Fedora 20 told you both were not
> valid LUKS devices, could you still open the one in Ubuntu
> that you could open before?
>
> Arno
>
> --
> 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
> ----
> A good decision is based on knowledge and not on numbers. - Plato
> _______________________________________________
> dm-crypt mailing list
> dm-crypt@saout.de
> http://www.saout.de/mailman/listinfo/dm-crypt
>
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next prev parent reply other threads:[~2014-08-20 16:18 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-18 20:58 [dm-crypt] "not a valid LUKS device" after distro change John Wells
2014-08-19 19:51 ` Arno Wagner
2014-08-19 22:22 ` John Wells
2014-08-20 9:09 ` Arno Wagner
2014-08-20 16:18 ` John Wells [this message]
2014-08-20 21:15 ` Arno Wagner
2014-08-21 14:00 ` John Wells
2014-08-21 14:25 ` Robert Nichols
2014-08-21 15:55 ` John Wells
2014-08-21 16:13 ` Jonas Meurer
2014-08-21 20:46 ` John Wells
2014-08-21 22:54 ` Arno Wagner
2014-08-22 3:52 ` John Wells
2014-08-22 5:30 ` Heinz Diehl
2014-08-22 11:46 ` Arno Wagner
2014-08-22 9:08 ` Jonas Meurer
2014-08-22 11:55 ` Arno Wagner
2014-08-22 12:55 ` Jonas Meurer
2014-10-28 15:34 ` John Wells
2014-10-28 15:35 ` John Wells
2014-10-28 18:34 ` Arno Wagner
2014-10-28 23:03 ` Jonas Meurer
2014-10-29 0:57 ` Arno Wagner
2014-10-29 23:49 ` Sven Eschenberg
2014-10-30 0:37 ` John Wells
2014-08-21 17:01 ` Robert Nichols
2014-08-21 14:29 ` Arno Wagner
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