1、当前mysql处于正常运行状态
2、停掉mysql服务
[root@localhost ~]# systemctl disable mysqld
Removed symlink /etc/systemd/system/multi-user.target.wants/mysqld.service.
[root@localhost ~]# systemctl stop mysqld
3、查找mysql所安装的rpm包
rpm -qa|grep mysql
4、依次卸载
[root@localhost ~]# rpm -e mysql-community-server-5.7.16-1.el7.x86_64
[root@localhost ~]# rpm -e mysql-community-client-5.7.16-1.el7.x86_64
[root@localhost ~]# rpm -e mysql-community-libs-5.7.16-1.el7.x86_64
[root@localhost ~]# rpm -e mysql-community-common-5.7.16-1.el7.x86_64
和安板常装的时候顺序刚好相反睡帽
5、确认服务和rpm包是否卸载完全
6、查找mysql存在于系统中对应的目录
find / -name mysql
7、[root@localhost ~]# rm -rf /var/lib/mysql
[root@localhost ~]# rm -rf /var/lib/mysql/mysql
[root@localhost ~]#
8、删除主配置文件
[root@localhost ~]# rm -rf /etc/my.cnf
[root@localhost ~]#
这个时候mysql已沫番材经卸载完成
