Isidoro posted on our forum: https://www.olimex.com/forum/index.php?topic=2014.0
I found this post http://www.gplsquared.com/eoma_boot/eoma_boot.html#Ubunt_13_04_3D and adapted image to olinuxino, and it worked. linaro_13_4_aolinuxino-a20.img.xz - https://docs.google.com/file/d/0B5o2FZvy5RcnSHhwX082blY3c0E/edit?usp=sharing details: User: jm pass: jm Hdmi out : 1360x768 ( you can adjust in uEnv.txt) I's a 5.2 Gig file system, so you need to write on a 8 Gig sd card. I used win32diskimager to make img file and seven zip to compress into xz file.
olimex 
Oct 16, 2013 @ 02:04:13
Do we have SATA feature on Olinuxino board?
Nov 07, 2013 @ 22:05:57
Works fine so far, I’m trying a distribution upgrade right now.
Jan 30, 2014 @ 19:08:59
digging up an old post, but any one using this on an a20 ok? are any of the newer builds more stable?