migration from homeassistant from one node to another one

1. intro

database server -> srv002
old server -> srv014
new server -> srv004

on srv014

systemctl disable --now homeassistant.service

on srv004

systemctl stop homeassistant.service

rsync -ai --delete srv014:config/ config/

ha-mariadb -s srv202 -d hadb004

on srv002

time mariadb-dump -v -u root -pPassw0rd hadb014 | mariadb -u root -pPassw0rd hadb004

it took 11 minutes

on srv004

systemctl start homeassistant.service

ha-rsync -s kvm010 -p /backup/srv004/

inst-tailscale