I also got a Cubieboard A20 and naively thought that being a drop in replacement for the A10 it would boot Arch with the standard bootloader and rootfs tarballs.. live and learn!
The only thing I get on the serial port when booting a uSD card prepared with the instructions at
http://archlinuxarm.org/platforms/armv7 ... cubieboard is:
$this->bbcode_second_pass_code('', 'U-Boot SPL 2012.10-04277-g7aa9f04 (Mar 18 2013 - 23:48:11)
DRAM: 32MB
')
Aaaand then it hangs. Yes I made all the mistakes just as described. Except that my first partition starts at 2048 * 512bytes, but that kinda came from some hardwired braincells by now. I'll try and get it running though and put up some tarballs if I do. Unfortunately I'm out at sea on an island with only a BeagleBone Black as my only Linux machine (and it's also my 3G router) so experimentation with new uSD contents is not so easy as it means tearing down the whole Internet access here
I agree about the documentation comments, but I appreciate even more the effort to get things working. The docs will follow...