[robszumski]

As long as the userland is supported by your kernel, you can run it within a container on that host. You build your custom containers off of a base container that has the initial userland in it already. This is normally the first line in a Dockerfile:

`FROM busybox` or `FROM ubuntu:latest`

[jsmeaton]

Thank you, that makes a lot of sense and finally clears it up for me.