Translations:Amarok/Manual/Organization/Collection/ExternalDatabase/19/en

The skip-grant-tables means you can use any password or username to connect to it. 'localhost' will not work, the MySQL client will try to use a Unix socket. Using 127.0.0.1 as the host makes it work. Some systems may restrict this access through apparmor or SELinux. They can be temporarily disabled with

sudo /etc/init.d/apparmor stop