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Overlay partition is plain.

su
cryptsetup plainOpen --cipher aes /dev/sdb2 enc
<enter your password>
mount /dev/mapper/enc /media/sdb2
<copy data>
umount /media/sdb2
cryptsetup...

I want to decrypt to raw or mount one aes encrypted overlay partition created with Knoppix 7.6.0. Password is known.
The partition has a broken file system (reiserfs), so normal boot halt with a...