Hi there.
This is my first post, so “Happy Welcome” to all of you 
I had an installation on a raspberry3 with an external mariaDB on an old synology for the recorder.
I had Errormessages and no History according to mariadb 10.3 which should be updated to 10.5 or higher which wasn´t possible because of the old hardware (Synology DS215j)
Now I´m restoring the old backup from PI3 to a new system on a Win10-HyperV-HomeAssistantOS.
Is it possible to save the old data by remigrating the database for the recorder back to the new local homeassistantOS?
I hope you guys understand my question
Cheers 