first of all, great work!!
I tried installing retropie on ubuntu to turn my C2 into a retro system but i keep getting errors and following the how-to instructions doesn't really get me somewhere besides the command line at reboot.
So i was really excited to find something that works.
However, when i write the image to an sd i get a boot partition of 1.17 gb and when i try to update it while running it on my odroid c2 it says:
"not enough space on /recalbox/share to download the update"
I tried to make a bigger partition and copy all files to that partition but even with a 30 gb partition this error comes up.
Is there a fix for this?