On this page, I will try to summarize all the steps to build a linux from scratch, and run it on the A13 Olinuxino Micro.
OLinuXino_Micro (Photo credit: Christian Jann)
What will you need?
An a13 Olinuxino micro.
A Micro SDCard, arround 2Gb
Something for the UART console. Voltage is 3.3v, so, you can use a rasberry pi, or like me, an awesome BUS Pirate.
Sources
Compile the linux kernel
For the sunxi 3.4 version of the kernel, I would start with this config.
Compile the uboot
Compile the script.bin
Make the sdcard image
sunxiboards 