首先,因为CentOS先安装了 MariaDB,与MySQL冲突,要先卸载掉
查看当前安装的mariaDB
rpm -qa | grep mariadb
rpm -e --nodeps mariadb-libs-5.5.****-1.el7_0.x86_64
去mysql官网上下载RedHat Linux 用的 RPM 包, 包括以下三项 server client 和 devel
http://dev.mysql.com/downloads/mysql/5.5.html#downloads
MySQL-server-5.5.42-1.el7.x86_64.rpm
MySQL-client-5.5.42-1.el7.x86_64.rpm
MySQL-devel-5.5.42-1.el7.x86_64.rpm
然后放在某一目录下,进入目录后,输入以下命令
rpm -ivh MySQL-server-5.5.42-1.el7.x86_64.rpm MySQL-client-5.5.42-1.el7.x86_64.rpm MySQL-devel-5.5.42-1.el7.x86_64.rpm
然后就可以启动mysql 服务了
service mysql start