LUKS support

palloy

OrangePi PC, Lubuntu 14.04

When I add an HDD via USB,
gparted can see it OK as sda, and can recognise sda1's file system is crypt-LUKS (!).
But Information includes "Warning: Linux Unified Key Setup encryption is not yet supported",
and  /dev/sda1 is a zero-length file. Not surprisingly,
# cryptsetup luksOpen /dev/sda1 mapper-token
fails internally with a bunch of incomprehensible errors.

Listing the kernel modules:
# modprobe -c > ~/modprobe.txt

and comparing to another Lubuntu 14.04 on amd64, shows lots of kernel modules are not present.
Taking a guess that dm-crypt.ko is one of the things we want,
# mlocate dm-crypt.ko
is not found on Lubuntu (armhf), but found on Lubuntu (amd64) in /lib/modules/ .

I assume from all that, that Lubuntu 14.04 doesn't support LUKS encryption.
If this can be fixed easily, that would be best.
Or if someone who knows what they are doing could produce another Lubuntu 14.04 image that supports LUKS, that would be good.