Migrating my self-hosted UniFi controller from Network Manager to UniFi OS Server

One of the jobs that has been on my list for a while is to migrate my UniFi controller installation from the self-hosted network manager tool to the new UniFi OS Server tool. The only reason that it was a job at all is because UniFi has decided to discontinue support for the UniFi network manager. Which is probably for the better, as it contained outdated packages anyway. Frankly, I’m not massively impressed with UniFi any more. If I were starting again, I am not sure that I would pick UniFi kit, but I don’t know what I would go for instead. I simply want to run my own controller, without external access or access by anyone else, to control the network infrastructure at home. I did the migration, and it mostly worked. Here’s what I did: Read the instructions I read the Unifi OS Server installation instructions. I also read the Backups and Migration in UniFi instructions. Snapshot my virtual machine My UniFi controller is running in a virtual machine, so I took a snapshot of that…