From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <wagner@tansi.org>
Received: from v6.tansi.org (ns.km31936-01.keymachine.de [87.118.116.4])
 by mail.saout.de (Postfix) with ESMTP
 for <dm-crypt@saout.de>; Fri, 16 May 2014 12:54:35 +0200 (CEST)
Received: from gatewagner.dyndns.org (77-57-44-24.dclient.hispeed.ch
 [77.57.44.24]) by v6.tansi.org (Postfix) with ESMTPA id BCD4420DC1EA
 for <dm-crypt@saout.de>; Fri, 16 May 2014 12:54:34 +0200 (CEST)
Date: Fri, 16 May 2014 12:54:34 +0200
From: Arno Wagner <arno@wagner.name>
Message-ID: <20140516105434.GA31000@tansi.org>
References: <CAPzH-qACcoTXSk8BT_ZVb6+h3FwY-2ZOXGfdENoz3VL-E+noog@mail.gmail.com>
 <5374FAD5.1000605@gmail.com>
 <CAPzH-qBm_h3e2n6wDzP8Jeh6+Kpq-sPkRQkqLPP=whLmun6big@mail.gmail.com>
 <CAFnMBaQp84dwxChS0u8piH9H_mfHq=kCyCHk_wevQSWQDJ6qAA@mail.gmail.com>
 <CAPzH-qDFgUf8NGNkv0ebbPjf-GGk+S13oZqWtD+jRO6Tv6Q3wA@mail.gmail.com>
 <CAFnMBaQpeVFeXyW27fFPHTXqs1Kmmsr9UAwdUWddvJq8NwhoQA@mail.gmail.com>
 <CAPzH-qBx9YNbmGwng_juwsr0CfZCUrhJVPTF4+en+TESr=TmuQ@mail.gmail.com>
 <CAFnMBaRB5KovOdaK3pC5SKjrQK6SZ4ukJeM+th-4JZTKirHwTQ@mail.gmail.com>
 <CAPzH-qC=wGOez3jHgKCFs+DFF_zHu8xv-7z3HFB5=nKd=XP0vQ@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <CAPzH-qC=wGOez3jHgKCFs+DFF_zHu8xv-7z3HFB5=nKd=XP0vQ@mail.gmail.com>
Subject: Re: [dm-crypt] Required kernel crypto interface not available
List-Id: <dm-crypt.saout.de>
List-Unsubscribe: <http://www.saout.de/mailman/options/dm-crypt>,
 <mailto:dm-crypt-request@saout.de?subject=unsubscribe>
List-Archive: <http://www.saout.de/pipermail/dm-crypt/>
List-Post: <mailto:dm-crypt@saout.de>
List-Help: <mailto:dm-crypt-request@saout.de?subject=help>
List-Subscribe: <http://www.saout.de/mailman/listinfo/dm-crypt>,
 <mailto:dm-crypt-request@saout.de?subject=subscribe>
To: dm-crypt@saout.de

On Fri, May 16, 2014 at 03:58:31 CEST, Franz wrote:
> On Thu, May 15, 2014 at 8:43 PM, .. ink .. <mhogomchungu@gmail.com> wrote:
> > Summary of below steps:
> > 1. create a 10MB image file
> > 2. create a LUKS volume on the image file
> > 3. open the LUKS volume.
> > 4. put a file system on the volume.
> > 5. close the the volume.
> > 6. ?????
> > 7. profit!!!!! :-)
> >
> > dd if=/dev/urandom of=luks.img bs=1024 count=10000
> > cryptsetup luksFormat luks.img
> > cryptsetup luksOpen luks.img luks
> > mkfs.ext4 /dev/mapper/luks
> > cryptsetup luksClose luks
> >
> >
> >
> Wow it works!! I cannot believe it was that easy. Also I was able to create
> a container called only test, without the .img extension to hidden the file
> among other files. Many thanks INK you are great!
> 
> I was breaking my head for nothing. Well it is easy when you know how to do
> it. Otherwise...  Goodby to Truecrypt now.
> 
> And to make a 200 MB container?
> 

For a less obscure way to create files in any size you
like seel also FAQ item 2.6. Can also be done with /dev/urandom,
but that gets really slow on larger files, see FAQ Item 2.19
for the idea how to wipe faster.

The FAQ ist at 
http://code.google.com/p/cryptsetup/wiki/FrequentlyAskedQuestions

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