edit the /usr/local/bin/mysql_install_db file.
replace the 'hostname' with your FQDN (ie, rocksalt.mui.net). You may also want to replace the "localhost" references with your IP address (ie, 188.8.131.52).
cd to the /var/db/mysql directory. Make sure it has a /var/db/data/mysql directory that contains db.frm, host.frm, and user.frm. If it doesn't have those files, you can grab it from here.
Run the mysql_install_db script from the /var/db/mysql directory.
Note: the startup script for mysql is