Docker on raspbian will not run containers - linux

Question

here’s my situation. I’m very inexperienced with any OS that isn’t windows. I’m working on a Raspberry Pi Zero W running Raspbian, with the ultimate goal of running zimdump so I can edit .zim files. A tutorial includes the use of Docker to mount the .zim file as a volume and work within a container. I seemed to have installed Docker with the correct version and architecture, but docker run hello-world doesn’t work as expected. Log from the first time I ran it:
Unable to find image ‘hello-world:latest‘ locally
latest: Pulling from library/hello-world
4ee5c797bcd7: Pull complete
Digest: sha256: [long sha256]
Status: Downloaded newer image for hello-world: latest
And nothing else. I ran it a second time, and nothing printed. The third time, I ran
sudo docker run hello-world -it
which printed more verbosely
docker: Error response from daemon: OCI runtime failed: container_linux.go:349: starting container process caused “exec: \”-it\”: executable file not found in $PATH”: unknown.
I tried an assortment of troubleshooting steps, from users whose situations were only related to mine, but not exactly, and I don’t want to alter anything else behind the scenes that makes this harder for you and me.
Here’s my docker info:
Client:
Debug Mode: false
Server:
Containers: 3
Running: 0
Paused: 0
Stopped: 3
Images: 1
Server Version: 19.03.12
Storage Driver: overlay2
Backing Filesystem: extfs
Supports d_type: true
Native Overlay Diff: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
Volume: local
Network: bridge host ipvlan macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
Swarm: inactive
Runtimes: runc
Init Binary: docker-init
containerd version: 7ad184331fa3e55e52b890ea95e65ba581ae3429
runc version: dc9208a3303feef5b3839f4323d9beb36df0a9dd
init version: fec3683
Security Options:
seccomp
Profile: default
Kernel Version: 4.19.66+
Operating System: Raspbian GNU/Linux 10 (buster)
OSType: Linux
Architecture: armv6l
CPUs: 1
Total Memory: 424.8MiB
Name: box.lan
ID: DAJU:334L:G6WP:RARN:REWW:K2LE:CJUK:LCBJ:XDWH:ZX5D:4XRM:BCTM
Docker Root Dir: /var/lib/docker
Debug Mode: false
Registry: https://index.docker.io/v1s/
Labels:
Experimental: false
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false
WARNING: No swap limit support
WARNING: No cpu cfs quota support
WARNING: No cpu cfs period support
WARNING: No cpuset support
I’ve spent 8 hours on this, and all I want to do is remove explicit wikipedia pages from the .zim so we can give this raspberry pi to kids as an offline internet.
You all are the best ☺️

Answer 1

The regular version of hello-world Dock image won't work on a Raspberry Pi zero. Because Raspberry Pi zero uses ARMv6Z instruction sets. Instead of docker run hello-world, you can run:
docker run --name someContainerName arm32v5/hello-world
Notice that this container was built with ARM32v5 instruction set. In theory, any ARM32 version equal to or below v6 should work on a Pi zero.
It took me a whole day to figure out. I've written a blog post on how to get Docker working on a Raspberry Pi 1 and Zero if you want to learn about the detail.