Chown problem during RPM installation in Fedora 2

Hi,
I just installed Fedora Core 2, without the database option so I can rpm
install a fresh MySQL 4.0 on the server. I login as root, got to the
terminal and type the following. Somehow there is a chown problem ... I
tried to search the forums for a similar problem but I have not found
any. Does any1 knows whats going on here?

rpm -i MySQL-server-4.0.22-0.i386.rpm
warning: MySQL-server-4.0.22-0.i386.rpm: V3 DSA signature: NOKEY, key ID
5072e1f 5
chown: `mysql': invalid user
chown: `mysql': invalid user
Preparing db table
Preparing host table
Preparing user table
Preparing func table
Preparing tables_priv table
Preparing columns_priv table
Installing all prepared tables
041218 13:46:32 Warning: Asked for 196608 thread stack, but got 126976
Fatal error: Can't change to run as user 'mysql'. Please check that the
user ex ists!
041218 13:46:32 Aborting

041218 13:46:32 /usr/sbin/mysqld: Shutdown Complete

Installation of grant tables failed!

Examine the logs in /var/lib/mysql for more information.
You can also try to start the mysqld daemon with:
/usr/sbin/mysqld --skip-grant &
You can use the command line tool
/usr/bin/mysql to connect to the mysql
database and look at the grant tables:

shell> /usr/bin/mysql -u root mysql
mysql> show tables

Try 'mysqld --help' if you have problems with paths. Using --log
gives you a log in /var/lib/mysql that may be helpful.

The latest information about MySQL is available on the web at
http://www.mysql.com
Please consult the MySQL manual section: 'Problems running
mysql_install_db',
and the manual section that describes problems on your OS.
Another information source is the MySQL email archive.
Please check all of the above before mailing us!
And if you do mail us, you MUST use the /usr/bin/mysqlbug script!
chown: `mysql': invalid user

Thanks
David
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