Hello if installed according to your documentation on cubieboard 2 sd card, the system does not boot. there is a machine id mismatch which may be seen using serial console. reason for this is because you have used 'mainline' uboot from 'git://github.com/hno/u-boot branch wip/a20' as said on your page - but kernel obviously built from sunxi sources = http://linux-sunxi.org/Cubietech_Cubieboard2#Machine_ID_mismatch how do i easily fix this and make system boot ? ( to go on building my kind of system = ripping out unnecessary stuff, building my kind of minimalist kernel, .... ) -- is there any way of getting binary uboot related files built from sunxi uboot source ( https://github.com/linux-sunxi/u-boot-sunxi.git ) which set the 'correct' machine id -- would you be kind enough to walk me through building sunxi uboot with your toolkit - by irc or what ever ( i've been tinkering w linux since kernel 1.2.n but never cross compiled ) /mc keep-IT-simple