I have just installed PostGIS (Postgres9.6) on a Debian server using apt-get.
But I have problems doing anything: I installed as root, but trying doing things as my local user "me" me> createuser me createuser: could not connect to database postgres: FATAL: role "me" does not exist Then, trying the same as root, but gettinge the same result. root> createuser me createuser: could not connect to database postgres: FATAL: role "root" does not exist Then trying with the -U postgres option. root> createuser -U postgres me createuser: could not connect to database postgres: FATAL: Peer authentication failed for user "postgres" How do I get started?