A20 OLINUXINO MICRO new OLIMEX images installation

[flach59]

Hi
I'm using a OLIMEX OLINUXINO MICRO with 3.4 kernel image from armbian and now I decided to change to the new OLIMEX images Buster or Bionic. The installation go well and the OLINUXINO MICRO boots but don't have wired internet connection. The OLIMEX wiki said: execute the next commands:

ifconfig -a
dhclient eth0

The second command returns the message: 'RTLINKNET answers: File exists'
and the network Manager show the message:'no valid active connections found'

The same result with the buster and bionic images.

Any idea of what to do for to have the wired internet connection?

[LubOlimex]

Hello,

I have few questions:

1. What is the exact hardware revision on your A20-OLinuXino-MICRO as printed on the board itself?

2. What is the Ethernet chip on-board? It's name should be again printed on the chip, the Eterhent chip is rectangle chip below the Ethernet connector usually, I believe it should be U7.

3. What is the exact image that you used with the board, can you give me the full name of the archive that you used?

Best regards,
Lub/OLIMEX

[flach59]

Hi and thanks

The answers of your questions:

1- the board: A20-OLINUXINO-MICRO Rev. E
2- The Ethernet Chip: REALTEK  RTL8201CP
3- The image: A20-OLinuXino-Buster-base-20200417-113854.img

Thanks again

[LubOlimex]

It seems it is an older board and probably has no EEPROM, so it doesn't get automatically recognized. You have to set it manually in u-boot (interrupt kernel boot) I've explained it in this post here:

https://www.olimex.com/forum/index.php?topic=7725.msg28970#msg28970

Let me know how it goes.

[flach59]

Hi

I execute the next commands:

1- olinuxino config write 4615 e 00046152 02:C8:0B:41:74:0B

2- boot

The result is the same: no wired internet connection

[LubOlimex]

RTL8201CP chip has no issues with the newest image. I tested it today (found an A20-OLinuXino-MICRO-n8G revision F with the same chip). The board got wrongfully recognized at first (as LIME board with no serial and no MAC), but Ethernet worked fine without any changes. Then I rebooted and tried your command:

Code Select Expand

olinuxino config write 8918 f 00046152 02:C8:0B:41:74:0B
and to save it used

Code Select Expand

saveenv
then reset with

Code Select Expand

reset
Again after boot, Ethernet worked fine.

Here is the log of my test:

https://pastebin.com/srJhHtcL

the Linux image that I used is "A20-OLinuXino-bionic-base-20200522-210046.img".