service mysql start出错【chū cuò】，mysql启动不【qǐ dòng bú】🚨了👑，解决【jiě jué】mysql: unrecognized service错误的方法如下🗯：

[root@downcc.com ~]# service mysql start
mysql: unrecognized service
[root@downcc.com ~]# service mysql restart
mysql: unrecognized service

[root@downcc.com ~]# rpm -q mysql 查询发【chá xún fā】🔃现【xiàn】mysql已经正常安装👲
mysql-5.1.52-jason.1

[root@downcc.com ~]# /etc/rc.d/init.d/mysqld start 直接启【zhí jiē qǐ】动没问❄题
Starting mysqld: [ OK ]

[root@downcc.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@downcc.com ~]# chkconfig mysqld on 设置mysql开机启动【dòng】🥫

[root@downcc.com ~]# chmod 755 /etc/rc.d/init.d/mysqld 修改mysqld执行权【zhí háng quán】➗限

[root@downcc.com ~]# service mysqld start 搞定【gǎo dìng】👸

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