apt-get update
apt-get install cryptsetup
apt-get install loop-aes-utils
modprobe aes
modprobe dm-crypt
modprobe dm-mod
ls -L /dev/mapper/control
cat /proc/crypto
dmsetup targets

dd if=/dev/zero of=volume bs=1M count=10240     ///10GB
losetup /dev/loop0 volume
cryptsetup -y create datensafe /dev/loop0

mkfs.ext2 /dev/mapper/datensafe
mount -t ext2 /dev/mapper/datensafe /mnt/data         ///mnt/data must be exist