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Dieter@be

Forum Fellow

From: Belgium

Registered: 2006-11-05

Posts: 2,001

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How to see if a device file is an opened dm_crypt/luks device?

Hi,

cryptsetup luksFormat /dev/sda1
cryptsetup luksOpen /dev/sda1 moo

Now i need a way to find out afterwards if /dev/mapper/moo represents the opened luksdevice /dev/sda1.
Cryptsetup comes with an option 'isLuks' but it only works on the original device, not the opened representation
eg:

cryptsetup isLuks /dev/sda1 # exit's 0
cryptsetup isLuks /dev/mapper/moo # exit's 234

I also tried 'cryptsetup luksDump' and 'cryptsetup status', which give me some information, but no evidence that /dev/mapper/moo is the opened luksdevice /dev/sda1.

Anyone an idea?

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< Daenyth> and he works prolifically
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