Ubuntu Lucid (10.04) Dockerfile tl;tr Common: What is Scratch Ubuntu: Wiki List of Ubuntu releases Docker Brew Ubuntu Core Lucid Dist Docker tools: mkimage debootstrap How build core Build command: mkimage.sh -d . debootstrap --variant=minbase --components=main,universe --include=iproute,gpgv --arch=amd64 lucid http://old-releases.ubuntu.com/ubuntu