Now it’s getting fully strange!
Having no option I spun a CentOS 7 VM, which is exactly the same OS as the source machine. Zammad is at the same version as well.
Restore script throws errors, Zammad is not starting. Checking the Postgres databases showed me:
My original Zammad installation names the DB “zammad_production”
The new Installation - SAME OS! SAME Zammad version - uses the database “zammad”
How can this be that the same Zammad version on the same OS version uses different databases? And how can I fix this in the restore script?