I tried to install mysql 4 from the rpm from mysql.com... but it seems that I can't start it by /usr/bin/mysqld_safe &, it says:

  • # /usr/bin/mysqld_safe &
    [1] 32375

    Starting mysqld daemon with databases from /var/lib/mysql
    STOPPING server from pid file /var/lib/mysql/downstairs.sunnz.org.pid
    050412 14:41:36 mysqld ended

What's going on?

I should have removed MySQL 3 by "yum erase mysql".