■エラー文
# /etc/rc.d/init.d/mysqld start Timeout error occurred trying to start MySQL Daemon. MySQL を起動中: [失敗]
■解決策
mysqlのログファイルを分析して、エラーを解決する
tail /var/log/mysqld.log
■ログ例
060101 01:23:45 mysqld started 060101 01:23:45 [ERROR] Can't start server: Bind on TCP/IP port: Address already in use 060101 01:23:45 [ERROR] Do you already have another mysqld server running on port: 3306 ? 060101 01:23:45 [ERROR] Aborting 060101 01:23:45 [Note] /usr/libexec/mysqld: Shutdown 060101 01:23:45 mysqld ended
この場合
[ERROR] Do you already have another mysqld server running on port: 3306 ?
の部分を参考にして問題解決を行う