Error when run docker images in raspberry pi - docker

Question

I managed to run this firefox docker container on a standard linux box based on this article, however when I installed docker on my raspberry pi, I get this error when I want to run the same:
docker: Error response from daemon: rpc error: code = 2 desc = "oci runtime error: exec format error".
I've followed the instruction of a guy in the discussion:
Windows 7+
It's a bit easier on Windows 7+ with MobaXterm:
Install MobaXterm for windows
Start MobaXterm
Configure X server: Settings -> X11 (tab) -> set X11 Remote Access to full
Use this BASH script to launch the container
run_docker.bash:
#!/usr/bin/env bash
CONTAINER=py3:2016-03-23-rc3
COMMAND=/bin/bash
DISPLAY="$(hostname):0"
USER=$(whoami)
docker run \
-it \
--rm \
--user=$USER \
--workdir="/home/$USER" \
-v "/c/Users/$USER:/home/$USER:rw" \
-e DISPLAY \
$CONTAINER \
$COMMAND
On my pi this is the start script:
#!/usr/bin/env bash
CONTAINER=creack/firefox-vnc
COMMAND=/bin/bash
#DISPLAY="$(hostname):1.0"
DISPLAY="CCKK4H2:0.0"
USER=$(whoami)
docker run \
-it \
--rm \
--user=$USER \
--workdir="/home/$USER" \
-v "/c/Users/$USER:/home/$USER:rw" \
-e DISPLAY \
$CONTAINER \
$COMMAND
This is how it worked for me on normal centos.
Any idea how to troubleshoot or what does this means?

Answer 1

On Raspberry PI, you can only run images designed to work on ARM architectures.
You can find some in the arm32v* repositories : arm32v6 or arm32v7.
If you want to create your own ARM compatible images, you must build the images from an ARM device (your Raspberry PI for example).