Well i have 3 phpbb forum on my server and you just have to look in the root directory there is the root password for your sql database
... which you should never use for any application because this user has way to many privileges for an application account.
or you have to make a new user in mysql.Its your choice
That's indeed your only good choice.
I access the domain - domain.dk/forum (where the installation files are located)
I get the installation screen, fill out the fields and click "Start Install"
And the screen says:
phpBB : Critical Error
What values have you filled in? Perhaps a user account for mysql that does not exist? A database that does not exist?
To create a database:
mysql
create database databasename;
To make a user after you have created a database with full privileges on all tables of the newly created database:
grant all privileges on databasename.* to user@domain identified by `password`;
(Be carefull don't forget the ticks around the password.