standard_init_linux.go:178: exec user process caused "exec format error"

[yangxuan8282]

I'm trying to run this on a x86_64 linux machine, since the README says:

You are able to run this Docker image in Docker for Mac/Windows.

I guess it should works for x64 linux, but failed:

docker build -t test-qemu .
Sending build context to Docker daemon 2.048 kB
Step 1/2 : FROM hypriot/rpi-alpine:3.4
3.4: Pulling from hypriot/rpi-alpine
441134fbd8aa: Already exists 
1129e39aaff0: Already exists 
Digest: sha256:39a9956bace10b1368089390aa09861da2d097f75cf354af635ae726c615a793
Status: Downloaded newer image for hypriot/rpi-alpine:3.4
 ---> 882059b7ca70
Step 2/2 : RUN apk add --no-cache bash
 ---> Running in 1601e023cfc3
standard_init_linux.go:178: exec user process caused "exec format error"
The command '/bin/sh -c apk add --no-cache bash' returned a non-zero code: 1

here is my Dockerfile:

FROM hypriot/rpi-alpine:3.4

RUN apk add --no-cache bash

If I misunderstanding the usage of this docker image? I think it should be used for build an alpine based docker image for raspberry pi on x64.

[firecyberice]

For use with Linux you need qemu installed on the host. Have a look at this to register qemu in the kernel of the host system for crossbuilding a docker image for arm.

[yangxuan8282]

@firecyberice sorry for late reply

it works

should we run

docker run --rm --privileged multiarch/qemu-user-static:register --reset

again after reboot?

[yangxuan8282]

after register qemu in the kernel of the host system, the drone docker plugins seems can't pass DOCKER_USERNAME && DOCKER_PASSWORD, I'm not sure whether it's related, have you ever got this issues?