"Googling" the problem and the error messages didn't get me much further.
I have to admit, this is a bit over my head. aka "I don't have a clue what I'm doing" # uname -a OpenBSD odin.thorshammare.org 5.1 GENERIC#160 i386 When I run : /usr/local/bin/mysql_install_db I get the following errormessage : Installing MySQL system tables... 120412 8:04:10 [Warning] '--skip-locking' is deprecated and will be removed in a future release. Please use '--skip-external-locking' instead. 120412 8:04:10 [ERROR] Can't create interrupt-thread (error 91, errno: 91) When I try to follow some recommendations from http://dev.mysql.com/doc/mysql-linuxunix-excerpt/5.5/en/mysql-install-db-pro blems.html # /usr/local/bin/mysqld_safe --user=_mysql --skip-grant-tables & [1] 3016 # 120412 08:48:38 mysqld_safe Logging to '/var/mysql/odin.thorshammare.org.err'. 120412 08:48:38 mysqld_safe Starting mysqld daemon with databases from /var/mysql 120412 08:48:38 mysqld_safe mysqld from pid file /var/mysql/odin.thorshammare.org.pid ended [1] + Done /usr/local/bin/mysqld_safe --user=_mysql --skip And the logfile says : 120412 08:47:40 mysqld_safe Starting mysqld daemon with databases from /var/mysql 120412 8:47:41 [Warning] '--skip-locking' is deprecated and will be removed in a future release. Please use '--skip-external-locking' instead. 120412 8:47:41 [ERROR] Fatal error: Can't change to run as user 'mysql' ; Please check that the user exists! 120412 8:47:41 [ERROR] Aborting 120412 8:47:41 [Note] /usr/local/libexec/mysqld: Shutdown complete 120412 08:47:41 mysqld_safe mysqld from pid file /var/mysql/odin.thorshammare.org.pid ended 120412 08:48:38 mysqld_safe Starting mysqld daemon with databases from /var/mysql 120412 8:48:38 [Warning] '--skip-locking' is deprecated and will be removed in a future release. Please use '--skip-external-locking' instead. 120412 8:48:38 [Note] Plugin 'FEDERATED' is disabled. 120412 8:48:38 InnoDB: Initializing buffer pool, size = 8.0M 120412 8:48:38 InnoDB: Completed initialization of buffer pool InnoDB: Error: pthread_create returned 91 120412 08:48:38 mysqld_safe mysqld from pid file /var/mysql/odin.thorshammare.org.pid ended Regards Hasse