Hi,
To be honest I have no idea how to install Discourse on an Ubuntu server.
I would really appreciate some help from anyone. All I want to do is get an instance of Discourse running.
You need a kernel that supports Docker and AUFS. Do you already have a VPS provider? What/who is it?
I use Vultr as my VPS provider.
I installed my instance on a Ubuntu VPS just yesterday. I followed a guide written somewhere around here, it was pretty good and went well, even though there were a few minor hiccups, but probably errors on my part.
Try to follow the docker install, which @steven_yue linked, and stop if the launcher script complains about “device mapper” (it’s horrible and slow).