psql fatal role does not exist

Question

I recently installed the latest version of Ubuntu and I\'m not used to it yet. I had several problems connecting PostgreSQL with pgadmin3.

I tried to follow several tuto

Answer 1

sudo -u postgres createuser user

may help you to create a new user with all the privileges of postgres

Answer 2

As pointed out in the comments, your pg_hba.conf seems fine.

Usually, the database will run as the postgres user (check ps aux | grep postgres to find out the username postgres is running under).

Log in as that user, for example sudo su - postgres, then create a user matching your normal Ubuntu user account (createuser username), and finally create a database with that same name and set the owner (-O) to that database user, like this: createdb -O username username).

That should make calling psql work, and pgadmin - as long as you start it as your default user, username - should work as well.

Edit: By default, psql will use your Linux username as default value for both the database-username and the database-name. You can override the username by using -U someotherusername, and connect to a different database by adding that DB name to the command line, such as psql someotherdbname. You might also find psql -l useful for listing the existing databases.

Answer 3

In windows 10 this works for fine

pg_restore --format=c --verbose --no-owner --no-privileges --dbname=MYDB --username=postgres --no-password --jobs=8 F:/MYBK.backup

--username=(role) and --no-password are necesaries

Answer 4

Though it's a bit question old if you're facing this on windows, simply delete Postgres data directory and re-initialize Postgres data by running initdb /data

Answer 5

Use the postgres user:

sudo su postgres

and then use psql.

If you still face problems check this link: PostgreSQL error: Fatal: role "username" does not exist