I finally restored the mySQL databases from the raw files and put them into mariaDB for the new server installation (CentOS 7).
That sounds a lot more complicated than it actually was. The way it sounded complicated may or may not have had something to do with me not restoring the databases until now, because I thought it would take a long time.
Spent last weekend in Århus to see a band. That was nice. Except the flying back from Copenhagen part and having the flight delayed by 2 hrs 50 minutes. Getting back to my place at 4AM with university the next day was definitely not nice.