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From: Sven Eschenberg <sven@whgl.uni-frankfurt.de>
To: dm-crypt@saout.de
Subject: Re: [dm-crypt] Encrypted fs in file
Date: Sun, 3 Apr 2016 18:03:11 +0200	[thread overview]
Message-ID: <57013EBF.7050303@whgl.uni-frankfurt.de> (raw)
In-Reply-To: <20160403084131.GA6111@citd.de>

And regarding 1):

You might want to use dd for that and /dev/urandom. (Or use /dev/zero 
and then zero out the inner device before creating the filesystem).

Regards

-Sven


Am 03.04.2016 um 10:41 schrieb Matthias Schniedermeyer:
> On 03.04.2016 00:07, doark@mail.com wrote:
>> Hello,
>> I wanted to make certain that I got this process right since I've never
>> done it before and I can't seem to find docs on the subject.
>>
>> 1. Cat /dev/zero into a new file till it is big enough.
>> 2. Use cryptsetup on the file (format and open).
>> 3. Use mkfs on the loop device.
>> 4. Mount the loop device as if it were a block device.
>>
>> Does this look correct to you?
>
> Nearly.
>
> 3) Not the loop device, but the dm-device, the loop it inbetween and is
> handled automatically.
>
> A symlink for the dm-device appears in /dev/mapper/ with the name you
> provided for the open command.
>
> Same for 4) You mount the dm-device
>
>
>
>

  reply	other threads:[~2016-04-03 16:03 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-03  4:07 [dm-crypt] Encrypted fs in file doark
2016-04-03  8:41 ` Matthias Schniedermeyer
2016-04-03 16:03   ` Sven Eschenberg [this message]
2016-04-03 23:57     ` Arno Wagner

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