sudo cryptsetup luksFormat -c aes-cbc-essiv:sha256 -s 256 /dev/sdb2 sudo cryptsetup luksOpen /dev/sdb2 luks sudo mkfs.ext4 -L ENCRYPTED /dev/mapper/luks sudo mount /dev/mapper/luks /mnt/secure
sudo cryptsetup luksOpen /dev/sdb2 luks sudo mount /dev/mapper/luks /mnt/secure
sudo umount /mnt/secure sudo cryptsetup luksClose luks