linux centos7 安装mysql5.6.42(rpm方式)

1. 删除已有的mysql

检查系统中是否已经有mysql,有则要删除mysql,彻底删除mysql,可以借鉴https://www.cnblogs.com/taomylife/p/7234925.html

本文例子中，要删除的是rpm安装的mysql8

如果系统中有mysql正在运行，先停止 systemctl stop mysqld.service

1.1 rpm查找

rpm -qa | grep -i mysql

mysql-community-common-8.0.13-1.el7.x86_64
mysql-community-release-el7-1.noarch
mysql-community-libs-8.0.13-1.el7.x86_64
mysql-community-client-8.0.13-1.el7.x86_64
mysql-community-server-8.0.13-1.el7.x86_64
mysql-community-libs-compat-8.0.13-1.el7.x86_64

rpm卸载

rpm -ev mysql-community-common-8.0.13-1.el7.x86_64 --nodeps

rpm -ev mysql-community-release-el7-1.noarch --nodeps

rpm -ev mysql-community-libs-8.0.13-1.el7.x86_64 --nodeps

rpm -ev mysql-community-client-8.0.13-1.el7.x86_64 --nodeps

rpm -ev mysql-commu