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I'm setting up my PostgreSQL 9.1. I can't do anything with PostgreSQL: can't createdb, can't createuser; all operations return the error message
Fatal: role h9uest does not exist
h9uest is my account name, and I sudo apt-get install PostgreSQL 9.1 under this account.
Similar error persists for the root account.
Use the operating system user postgres to create your database - as long as you haven't set up a database role with the necessary privileges that corresponds to your operating system user of the same name (h9uest in your case):
sudo -u postgres -i
As recommended here or here.
Then try again. Type exit when done with operating as system user postgres.
Or execute the single command createuser as postgres with sudo, like demonstrated by drees in another answer.
The point is to use the operating system user matching the database role of the same name to be granted access via ident authentication. postgres is the default operating system user to have initialized the database cluster. The manual:
In order to bootstrap the database system, a freshly initialized
system always contains one predefined role. This role is always a
“superuser”, and by default (unless altered when running initdb) it
will have the same name as the operating system user that initialized
the database cluster. Customarily, this role will be named postgres.
In order to create more roles you first have to connect as this
initial role.
I have heard of odd setups with non-standard user names or where the operating system user does not exist. You'd need to adapt your strategy there.
Read about database roles and client authentication in the manual.
After trying many other people's solutions, and without success, this answer finally helped me.
https://stackoverflow.com/a/16974197/2433309
In short, running
sudo -u postgres createuser owning_user
creates a role with name owning_user (in this case, h9uest). After that you can run rake db:create from the terminal under whatever account name you set up without having to enter into the Postgres environment.
sudo su - postgres
psql template1
creating role on pgsql with privilege as "superuser"
CREATE ROLE username superuser;
eg. CREATE ROLE demo superuser;
Then create user
CREATE USER username;
eg. CREATE USER demo;
Assign privilege to user
GRANT ROOT TO username;
And then enable login that user, so you can run e.g.: psql template1, from normal $ terminal:
ALTER ROLE username WITH LOGIN;
This works for me:
psql -h localhost -U postgres
Installing postgres using apt-get does not create a user role or a database.
To create a superuser role and a database for your personal user account:
sudo -u postgres createuser -s $(whoami); createdb $(whoami)
psql postgres
postgres=# CREATE ROLE username superuser;
postgres=# ALTER ROLE username WITH LOGIN;
For version Postgres 9.5 use following comand:
psql -h localhost -U postgres
Hope this will help.
Working method,
vi /etc/postgresql/9.3/main/pg_hba.conf
local all postgres peer
here change peer to trust
restart, sudo service postgresql restart
now try, psql -U postgres
For Windows users : psql -U postgres
You should see then the command-line interface to PostgreSQL: postgres=#
I did a healthcheck with docker-compose.
healthcheck:
test: ['CMD-SHELL', 'pg_isready']
interval: 5s
timeout: 5s
retries: 5
If you also have that change the user:
healthcheck:
test: ['CMD-SHELL', 'pg_isready -U postgres'] # <<<---
interval: 5s
timeout: 5s
retries: 5
In local user prompt, not root user prompt, type
sudo -u postgres createuser <local username>
Then enter password for local user.
Then enter the previous command that generated "role 'username' does not exist."
Above steps solved the problem for me.
If not, please send terminal messages for above steps.
I installed it on macOS and had to:
cd /Applications/Postgres.app/Contents/Versions/9.5/bin
createuser -U postgres -s YOURUSERNAME
createdb YOURUSERNAME
Here's the source: https://github.com/PostgresApp/PostgresApp/issues/313#issuecomment-192461641
Manually creating a DB cluster solved it in my case.
For some reason, when I installed postgres, the "initial DB" wasn't created. Executing initdb did the trick for me.
This solution is provided in the PostgreSQL Wiki - First steps:
initdb
Typically installing postgres to your OS creates an "initial DB" and starts the postgres server daemon running. If not then you'll need to run initdb
dump and restore with --no-owner --no-privileges flags
e.g.
dump - pg_dump --no-owner --no-privileges --format=c --dbname=postgres://userpass:username#postgres:5432/schemaname > /tmp/full.dump
restore - pg_restore --no-owner --no-privileges --format=c --dbname=postgres://userpass:username#postgres:5432/schemaname /tmp/full.dump
sudo -u postgres createuser --superuser $USER
sudo -u postgres createdb $USER
This should definitely work for you.
for those who using docker and correctly followed the instructions from official doc, if you still met this problem, RESTART windows and try again.
Follow These Steps and it Will Work For You :
run msfconsole
type db_console
some information will be shown to you chose the information who tell you to make: db_connect user:pass#host:port.../database sorry I don't remember it but it's like this one then replace the user and the password and the host and the database with the information included in the database.yml in the emplacement: /usr/share/metasploit-framework/config
you will see. rebuilding the model cache in the background.
Type apt-get update && apt-get upgrade after the update restart the terminal and lunch msfconsole and it works you can check that by typing in msfconsole: msf>db_status you will see that it's connected.
Follow these steps to get postgres working.
In your terminal, locate the Application Support folder with the following command.
/Users/[name of the user]/library/application support
Delete the application, Postgres.
Reinstall the app and it should work just fine.
Something as simple as changing port from 5432 to 5433 worked for me.
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 username
in my terminal I get the following message:
createuser: could not connect to database postgres: FATAL: role "tom" does not exist
Tom is my Ubuntu user account that I'm logged into right now. I'm trying to create a username of "postgres" then do a psql -U psql template1 so I can create a database and assign an owner to it for my Rails app.
You mentioned Ubuntu so I'm going to guess you installed the PostgreSQL packages from Ubuntu through apt.
If so, the postgres PostgreSQL user account already exists and is configured to be accessible via peer authentication for unix sockets in pg_hba.conf. You get to it by running commands as the postgres unix user, eg:
sudo -u postgres createuser owning_user
sudo -u postgres createdb -O owning_user dbname
This is all in the Ubuntu PostgreSQL documentation that's the first Google hit for "Ubuntu PostgreSQL" and is covered in numerous Stack Overflow questions.
(You've made this question a lot harder to answer by omitting details like the OS and version you're on, how you installed PostgreSQL, etc.)
See git gist with instructions here
Run this:
sudo -u postgres psql
OR
psql -U postgres
in your terminal to get into postgres
NB: If you're on a Mac and both of the commands above failed jump to the section about Mac below
postgres=#
Run
CREATE USER new_username;
Note: Replace new_username with the user you want to create, in your case that will be tom.
postgres=# CREATE USER new_username;
CREATE ROLE
Since you want that user to be able to create a DB, you need to alter the role to superuser
postgres=# ALTER USER new_username SUPERUSER CREATEDB;
ALTER ROLE
To confirm, everything was successful,
postgres=# \du
List of roles
Role name | Attributes | Member of
-----------+------------------------------------------------+-----------
new_username | Superuser, Create DB | {}
postgres | Superuser, Create role, Create DB, Replication | {}
root | Superuser, Create role, Create DB | {}
postgres=#
Update/Modification (For Mac):
I recently encountered a similar error on my Mac:
psql: FATAL: role "postgres" does not exist
This was because my installation was setup with a database superuser whose role name is the same as your login (short) name.
But some linux scripts assume the superuser has the traditional role name of postgres
How did I resolve this?
If you installed with homebrew run:
/usr/local/opt/postgres/bin/createuser -s postgres
If you're using a specific version of postgres, say 10.5 then run:
/usr/local/Cellar/postgresql/10.5/bin/createuser -s postgres
OR:
/usr/local/Cellar/postgresql/10.5/bin/createuser -s new_username
OR:
/usr/local/opt/postgresql#11/bin/createuser -s postgres
If you installed with postgres.app for Mac run:
/Applications/Postgres.app/Contents/Versions/10.5/bin/createuser -s postgres
P.S: replace 10.5 with your PostgreSQL version
sudo -u postgres createuser -s tom
this should help you as this will happen if the administrator has not created a PostgreSQL user account for you. It could also be that you were assigned a PostgreSQL user name that is different from your operating system user name, in that case you need to use the -U switch.
Your error is posted in the official documentation. You can read this article.
I have copied the reason for you (and hyperlinked the URLs) from that article:
This will happen if the administrator has not created a PostgreSQL user account for you. (PostgreSQL user accounts are distinct from operating system user accounts.) If you are the administrator, see Chapter 20 for help creating accounts. You will need to become the operating system user under which PostgreSQL was installed (usually postgres) to create the first user account. It could also be that you were assigned a PostgreSQL user name that is different from your operating system user name; in that case you need to use the -U switch or set the PGUSER environment variable to specify your PostgreSQL user name
For your purposes, you can do:
1) Create a PostgreSQL user account:
sudo -u postgres createuser tom -d -P
(the -P option to set a password; the -d option for allowing the creation of database for your username 'tom'. Note that 'tom' is your operating system username. That way, you can execute PostgreSQL commands without sudoing.)
2) Now you should be able to execute createdb and other PostgreSQL commands.
1- Login as default PostgreSQL user (postgres)
sudo -u postgres -i
2- As postgres user. Add a new database user using the createuser command
[postgres]$ createuser --interactive
3-exit
[postgres]$ exit
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 - postgres
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
I had the same issue, i just do this
sudo su - postgres
createuser odoo -U postgres -dRSP #P for password
(odoo or user name that you want o give the postgres access)
On Windows use:
C:\PostgreSQL\pg10\bin>createuser -U postgres --pwprompt <USER>
Add --superuser or --createdb as appropriate.
See https://www.postgresql.org/docs/current/static/app-createuser.html for further options.
For Linux, you can activate SUPERUSER to enable to create databases like this:
Go to terminal/shell
Enter inside postgres using
sudo -u postgres -i
Now your terminal will be like "postgres#anish-Latitude-E7450:~$"
Enter postgres terminal using
psql
Now your terminal will be like "postgres=#"
Enter alter user [postgres_user_name] createdb;
Now the user will be having access to create db.
Exit psql using '\q'
Logout postgres using exit
Hope this helps you.
You need to first run initdb. It will create the database cluster and the initial setup
See How to configure postgresql for the first time? and http://www.postgresql.org/docs/8.4/static/app-initdb.html
On OS X 10.11.2, I've installed Postgres.app and I'm running the local server. I'm trying to create a local account with a username and password so that I can develop a Rails app locally. However, running the following command:
sudo -u postgres createuser -s {USERNAME}
I receive sudo: unknown user: postgres error.
Any suggestions as to why this error occurs and how to resolve this?
sudo tells you there is no system user "postgres".
When you installed PostgreSQL, it should have created database user "postgres" and you can try use that:
$ psql -u postgres
postgres=# create user {username} password '{password}';
I managed to create a user with the following steps.
In the terminal:
createuser --superuser {USERNAME}
I then set a password in psql:
\password {USERNAME}
I installed postgresql on Windows. When I run createuser in the DOS prompt, it fails with the following error:
createuser testuser
could not connect to database postgres : FTAL: role testuser does not exist
I have tried switching the pg_hba file from md5 to trust, but that has not solved the issue. Any thoughts? The database server itself is running- I was able to connect to it using another tool. Also, the path has a reference to the postgres/bin directory.
you need to specify a super user account in order to create a user
createuser -U pgsql testuser
if you plan on using a password for this user you can use -P or --pwprompt
createuser -P -U pgsql testuser
and it will prompt you for the password.
replace pgsql with a superuser account.
I installed Postgres with this command
sudo apt-get install postgresql postgresql-client postgresql-contrib libpq-dev
Using psql --version on terminal I get psql (PostgreSQL) 9.3.4
then I installed pgadmin with
sudo apt-get install pgadmin3
Later I opened the UI and create the server with this information
but this error appear
how can I fix it?
Modify password for role postgres:
sudo -u postgres psql postgres
alter user postgres with password 'postgres';
Now connect to pgadmin using username postgres and password postgres
Now you can create roles & databases using pgAdmin
How to change PostgreSQL user password?
You haven't created a user db. If its just a fresh install, the default user is postgres and the password should be blank. After you access it, you can create the users you need.
It helps me:
1. Open the file pg_hba.conf
sudo nano /etc/postgresql/9.x/main/pg_hba.conf
and change this line:
Database administrative login by Unix domain socket
local all postgres md5
to
Database administrative login by Unix domain socket
local all postgres trust
Restart the server
sudo service postgresql restart
Login into psql and set password
psql -U postgres
ALTER USER postgres with password 'new password';
Again open the file pg_hba.conf and change this line:
Database administrative login by Unix domain socket
local all postgres trust
to
Database administrative login by Unix domain socket
local all postgres md5
Restart the server
sudo service postgresql restart
It works.
Helpful links
1: PostgreSQL (from ubuntu.com)
Create a user first. You must do this as user postgres. Because the postgres system account has no password assigned, you can either set a password first, or you go like this:
sudo /bin/bash
# you should be root now
su postgres
# you are postgres now
createuser --interactive
and the programm will prompt you.
First you should change the password using terminal.
(username is postgres)
postgres=# \password postgres
Then you will be prompted to enter the password and confirm it.
Now you will be able to connect using pgadmin with the new password.
if you open the psql console in a terminal window, by typing
$ psql
you're super user username will be shown before the =#, for example:
elisechant=#$
That will be the user name you should use for localhost.