service mysql start出錯，mysql啟動不了，解決mysql: unrecognized service錯誤

service mysql start出錯，mysql啟動不了，解決mysql: unrecognized service錯誤的方法如下：

[root@ctohome.com ~]# service mysql start
mysql: unrecognized service
[root@ctohome.com ~]# service mysql restart
mysql: unrecognized service
 
[root@ctohome.com ~]# rpm -q mysql   查詢發現mysql已經正常安裝
mysql-5.1.52-jason.1

[root@ctohome.com ~]# /etc/rc.d/init.d/mysqld start  直接啟動沒問題
Starting mysqld:  [  OK  ]

 
[root@ctohome.com ~]# ls  /etc/rc.d/init.d/mysqld  -l
-rwxr-xr-x 1 root root 5509 Dec 18 02:31 /etc/rc.d/init.d/mysqld

[root@ctohome.com ~]# chkconfig mysqld on 設定mysql開機啟動

[root@ctohome.com ~]# chmod 755 /etc/rc.d/init.d/mysqld  修改mysqld執行許可權

[root@ctohome.com ~]# service mysqld start  搞定
Starting mysqld:  [  OK  ]
[root@ctohome.com ~]# service mysqld start
Starting mysqld:  [  OK  ]
[root@ctohome.com ~]# service mysqld status
mysqld (pid 9487) is running...