It seems that ubuntu forgot about the armhf packages? Am I missing something?
The issue can be recreated with this simple Dockerfile:
FROM ubuntu USER root RUN dpkg --add-architecture armhf RUN apt-get update
But apparently the ubuntu repositories doesn't know about this?
E: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/main/binary-armhf/Packages 404 Not Found [IP: 188.8.131.52 80] E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial/main/binary-armhf/Packages 404 Not Found [IP: 184.108.40.206 80] E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial-updates/main/binary-armhf/Packages 404 Not Found [IP: 220.127.116.11 80] E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial-backports/main/binary-armhf/Packages 404 Not Found [IP: 18.104.22.168 80] E: Some index files failed to download. They have been ignored, or old ones used instead.
Assistance will be greatly appreciated