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From: "Luís de Sousa" <luis.a.de.sousa@gmail.com>
To: Milan Broz <gmazyland@gmail.com>
Cc: dm-crypt@saout.de
Subject: Re: [dm-crypt] Fwd: Cannot wipe header on device
Date: Fri, 11 Dec 2015 15:56:10 +0100	[thread overview]
Message-ID: <CAEtdG7vAYRf=t==w7vJ-gvfAaS85mT66fTOSKAhJeQfyefs6WQ@mail.gmail.com> (raw)
In-Reply-To: <566ADEFA.7090509@gmail.com>

On 11 December 2015 at 15:34, Milan Broz <gmazyland@gmail.com> wrote:
>
> Could you please try to add to dd command: oflag=direct  and try it again?
>

Same result (see below). Thanks for helping in any case.

$ sudo dd if=/dev/zero of=/dev/sdb1 bs=4096 count=2500 conv=sync oflag=direct
2500+0 records in
2500+0 records out
10240000 bytes (10 MB) copied, 1.59072 s, 6.4 MB/s

$ sudo cryptsetup -y -v luksFormat /dev/sdb1

WARNING!
========
This will overwrite data on /dev/sdb1 irrevocably.

Are you sure? (Type uppercase yes): YES
Enter passphrase:
Verify passphrase:
Cannot wipe header on device /dev/sdb1.
Command failed with code 5: Cannot wipe header on device /dev/sdb1.

  reply	other threads:[~2015-12-11 14:56 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-10 10:18 [dm-crypt] Cannot wipe header on device Luís de Sousa
2015-12-10 13:35 ` Michael Kjörling
2015-12-10 16:49 ` H McCurdy
2015-12-10 17:24   ` Luís de Sousa
2015-12-10 17:37     ` H McCurdy
2015-12-10 18:25       ` Luís de Sousa
2015-12-10 19:54         ` H McCurdy
2015-12-11  4:33           ` Arno Wagner
     [not found]           ` <CAEtdG7sSJQC79cAqCGcMwREH_nTb8NakiXSfCr3+vv3vyo0w+A@mail.gmail.com>
2015-12-11 14:09             ` [dm-crypt] Fwd: " Luís de Sousa
2015-12-11 14:34               ` Milan Broz
2015-12-11 14:56                 ` Luís de Sousa [this message]
2015-12-11 15:10                   ` Milan Broz
2015-12-13 19:52                   ` Milan Broz
2015-12-14  8:44                     ` Luís de Sousa
2015-12-14 14:46                       ` Sven Eschenberg
2015-12-14 19:53                       ` Robert Nichols
2015-12-14 20:39                         ` Arno Wagner
2015-12-15  8:53                       ` Luís de Sousa
2015-12-15  9:37                         ` Milan Broz
2015-12-15 17:53                         ` Robert Nichols
2015-12-16  4:06                         ` David Christensen
2015-12-10 19:06 ` [dm-crypt] " David Christensen

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