Createuser: could not connect to database postgres: FATAL: role “tom” does not exist

Question

I\'m trying to set up Postgres for the first time, and I need to create a user with permissions to read and create databases. However, when I use:

createuser          


        

Answer 1

If you don't want to change the authentication method (ident) and mess with pg_hba.conf use this:

First login as the default user

 sudo su - posgres

then access psql and create a user with the same name as the one you are login in

postgres=# CREATE USER userOS WITH PASSWORD 'garbage' CREATEDB;

you can verify your user with the corresponding roles with

postgres=#  \du

Afer this you can create your database and verify it with

psql -d dbName
\l
\q