sudo adduser mythtv
create database mythconverg;
show databases;
create user 'mythtv'@'%' identified by 'mythtv';
create user 'mythtv'@'localhost' identified by 'mythtv';
SELECT User,Host FROM mysql.user;
set password for 'mythtv'@'%' = password('mythtv');
set password for 'mythtv'@'localhost' = password('mythtv');
set password for 'mythtv'@'127.0.0.1' = password('mythtv');
connect mythconverg;
grant all privileges on *.* to 'mythtv'@'%' with grant option;
grant all privileges on *.* to 'mythtv'@'localhost' with grant option;
grant all privileges on *.* to 'mythtv'@'127.0.0.1' with grant option;
flush privileges;
exit;

när jag ändrade mitt hostname till 127.0.0.1 så verkar det fungera.