FreeBSD 9.3 Mysql Error

[mindfreak99 5]

Good day , I have a little problem with my FreeBSD 9.3 Root Server

The server is hosted by Kimsufi .
After installing MySQL 5.5 mysql does not start , I get this error code :

Starting MySQL .
su : unknown login: mysql
/usr/local/etc/rc.d/mysql-server : WARNING : failed to start mysql

Does anyone have a solution for my problem ?
Best Regards
Prof.MindFreak

[CjMt2 48]

Do you have user/gropup mysql?

If not, create manualy user and group mysql (nologin) and try to start mysql safe first.