Move your Discourse Instance to a Different Server

[Gunnar (Gunnar Helliesen)]

If you’re on Ubuntu 20.04 still, are you using Docker and aufs?

if you are, you should read this before proceeding:

Docker Upgrade Removed AUFS Storage Driver, Killed Discourse

I run a Discourse forum installation on Ubuntu 20.04.6 LTS. The Docker image uses AUFS for storage. Today, I installed upgrades via sudo apt upgrade. Now the Discourse forum is no longer accessible, and it appears to be because a Docker upgrade removed the AUFS storage driver. I see plenty of guides to configuring Docker to use Overlay2 instead, but I don’t see any guidance on how to migrate my existing Discourse installation to use Overlay2, especially now that I can’t start Docker to mount m…