Run with ramdisk, update persistent store instead of ramdisk

[utu]

Greetings, Capricorny.

I think you might find MX-14 interesting even though it is
currently a 32-bit Live system, it has built-in persistence
and re-mastering capabilities. The author
of the MX's init is BitJam, who gives Klaus K credit for inspiring it.
With a fat32 base, it has a 4G filesize limit. Uses squashfs for
saving compressed linuxfs, remasterings. Choice at boot on
different persistence combinations.

See http://mepiscommunity.org/mx.