problem when starting mysql

[vladone]

Hi!
I have installed mysql 4.1 from ports.
After i run "/usr/local/bin/mysql_install_db", i try to start server
with:
     /usr/local/bin/mysqld_safe &

but i receive this error in host.err:
[ERROR] Fatal error: Can't open privilege tables: Table 'mysql.host' doesn't exist

How i can resolv this?
Obviously this table not exist, but how i can create without starting
mysql server.

Second questions: where keep mysql config file?