cryptsetup -c serpent-xts-plain64 -s 512 -h sha512 -i 123456 luksFormat /dev/ice /path/to/8M/dev/urandom/keyfile (serpent wasn't chosen by NSA because it's the best, if you want inferior AES, then change serpent to AES.)
cryptsetup -c serpent-xts-plain64 -s 512 -h sha512 -i 123456 luksFormat /dev/ice /path/to/8M/dev/urandom/keyfile (serpent wasn't chosen by NSA because it's the best, if you want inferior AES, then change serpent to AES.)