OLIMEX© 2018
A20-OLinuXino-MICRO user's manual
Q: How to detect and enable the Ethernet controller (if it is disabled by default)?
A: You can enable it by following these two steps:
1. Check under what name the LAN is listed with command "ifconfig –a"
2. If, for example, it is under eth0 name, then enable it with: "dhclient eth0"
This should enable the Ethernet and then SSH would also be available.
You can also enable auto detection of Ethernet on power-up by uncommenting #auto eth0 in
/etc/network/interfaces in the Linux image.
Q: How to generate boot-able SD-card Debian Linux image for A20-OLinuXino-MICRO?
A: Build instructions and required files for the latest Debian images can be found in our GitHub
repository. Here:
https://github.com/OLIMEX/OLINUXINO/tree/master/SOFTWARE/A20
Q: How to edit board configurations and definitions in the official Debian Linux?
A: Do you want a custom video resolution output? Do you need a different port definition? Do you
need to change the hardware definitions of the board?
It is explained above in the manual. But you can also visit this wiki article:
Q: How to edit board configurations and definitions in the official Android images?
A: There is a wiki article about that, please visit:
Q: Is it possible to boot Debian from the extra flash memory? Do you provide such image?
A: Yes, it is possible. Use the latest Debian Jessie image and type "nandinstall" or “emmc”
(depending on whether you got a board with NAND or eMMC). More information about NAND
installation can be found in this wiki article:
installing Debian Jessie to the 4GB NAND memory
More information about eMMC installation can be found in this wiki article:
There are other people who are also successful in booting Debian from the NAND. Make sure to
check on the forum. Make sure to check the number of very good and optimized A20-OLinuXino
Debian images by Igor Pečovnik. There are also his instructions for NAND installation of Debian:
Q: Can I use mainline kernel instead of Sunxi kernel?
A: You can. However, most non-sunxi kernels are headless – no audio or video output are
supported. If you don't need audio or video – go for it – it had been tested and confirmed working
(there are installation reports even) here:
https://wiki.debian.org/InstallingDebianOn/Allwinner
Q: I have a version of the board with extra flash memory. The board doesn't seem to have
Android loaded.
A: We no longer load Android to the flash memory of the boards. You can upload Android
following the advice above in this document.
Page 54 of 56