I have a Rock64 running Ubuntu with HA running as a Docker container. And I want to migrate to a HAOS installed on a much more powerfull and up-to-date Proxmox server (in the same network, but different IP).
But how do I migrate without the need to start a fresh config on the new HAOS? Can I just make a backup on HA Docker, and restore this in HAOS? Do I need to use the same IP? Do I need to turn off the old HA container before booting the new HAOS?
Would make sense while not strictly technical necessary.
Actually booting the new HAOS to the on-boarding screen obviously is no problem. You can then (instead of creating a fresh config) upload your backup. When doing this might be a good time to shut down the HA which the backup comes from. It very much depends on the services/integration/devices you are using if they are capable being connected to more than one HA instance at a time (esphome for example has no problems with this)