Ondřej Surý writes: > Wait, after re-reading your first bugreport - did you removed, but not > purged the pdns-backend-bind package?
As I reported in https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=865561#16 Jessie -> Stretch upgrade failed, because pdns_server process failed to start after upgrade of pdns-server and pdns-backend-mysql packages: Jun 23 18:16:35 jessie pdns_server[2663]: Jun 23 18:16:35 Fatal error: Trying to set unknown parameter 'bind-config' Jun 23 18:16:35 jessie systemd[1]: pdns.service: Main process exited, code=exited, status=1/FAILURE Jun 23 18:16:35 jessie systemd[1]: Failed to start PowerDNS Authoritative Server. When I then did this: # apt-get purge pdns-backend-bind pdns_server started without problems. -- Juha