Re: cryptsetup, can't create device from encrypted dvd

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On Wed, Sep 20, 2006 at 05:30:07PM +0200, Nomen Nescio wrote:
> I tried to make an encrypted dvd this way (using cryptsetup
> 1.0.3-0ubuntu1)
> 
> $ mkisofs -r -J path/to/stuff/  |aespipe -H sha256 -e aes256 -T >foo.iso
> [entered passphrase twice]
> [waited a while]
> [ended up with a 4.2GB foo.iso]
> 
> $ dvdrecord -v -dao dev=/dev/dvdrw foo.iso
> 
> $ eject
> [pushed the button on the drive to suck the dvd back in]
> 
> $ sudo cryptsetup -c aes -s 256 -h sha256 create cd /dev/dvdrw
> [entered sudo password]
> [entered crypto passphrase]
> Command failed: device-mapper: reload ioctl failed: Invalid argument
> 
> [tried again a few times, with the same result]
> 
> 
> Anyone know what I'm doing wrong?

No idea, but you should be able to test this by mounting the
.iso file via losetup. Would save you the dvd writing.

Arno

-- 
Arno Wagner, Dipl. Inform., CISSP --- CSG, ETH Zurich, wagner@xxxxxxxxxxxxxx 
GnuPG:  ID: 1E25338F  FP: 0C30 5782 9D93 F785 E79C  0296 797F 6B50 1E25 338F
----
Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans

There is considerable overlap between the intelligence of the smartest bears
and the dumbest tourists. -- Yosemite park ranger on bear-proof trashcans

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