[dm-crypt] Encrypt all partitions with dm-crypt

Arno Wagner arno at wagner.name
Fri Sep 7 21:04:54 CEST 2012

>From the top of my head, have you checked whether it is in 
use as swap? "swapon -s" should do that.


On Fri, Sep 07, 2012 at 08:10:19PM +0400, Stayvoid wrote:
> Hi,
> I got the following error when I typed this command:
> cryptsetup -y -c aes-xts-plain -s 512 create swap /dev/sda2
> Cannot use device /dev/sda2 which is in use (already mapped or mounted).
> There is nothing similar in either fstab or mount's output.
> There is nothing in /dev/mapper except control.
> What else should be checked?
> Thanks
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Arno Wagner,    Dr. sc. techn., Dipl. Inform.,   Email: arno at wagner.name 
GnuPG:  ID: 1E25338F  FP: 0C30 5782 9D93 F785 E79C  0296 797F 6B50 1E25 338F
One of the painful things about our time is that those who feel certainty 
are stupid, and those with any imagination and understanding are filled 
with doubt and indecision. -- Bertrand Russell 

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