When trying to install node.js into the default official Ubuntu image on Docker the other day I hit a dependency issue. Node.js needs rlwrap[1], and rlwrap is in the universe repository, which it turns out isn’t part of /etc/apt/sources.list for the 12.04 image: deb http://archive.ubuntu.com/ubuntu precise main Things worked using the ubuntu:quantal (== ununtu:12.10) image […]