Hi Matthias, > On 02. May, 2020, at 20:58, Matthias Apitz <guru@xxxxxxxxxxx> wrote: > OK, lesson learned: Next time I will do a tar backup of PGDATA after > the configuration of the cluster and before creating any database in it. that tar would still contain too much. :-) You really only need the config files. All else is created by initdb. Cheers, Paul