Error when run docker images in raspberry pi

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).