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查看mysql是否安装，如果安装了，卸载mysql[root@localhost ~]# rpm -qa|grep mysql* mysql-libs-5.1.61-4.el6.x86_64[root@localhost ~]# rpm -e --nodeps mysql-libs-5.1.61-4.el6.x86_64建用户mysql[root@localhost ~]# groupadd mysql[root@localhost ~]# useradd -g mysql mysql [r

下载rpm软件包(mysql-5.7.17-1)下载地址：https://cdn.mysql.com/archives/mysql-5.7/mysql-5.7.17-1.el7.x86_64.rpm-bundle.tar [root@mysql local]# wget https://cdn.mysql.com/archives/mysql-5.7/mysql-5.7.17-1.el7.x86_64.rpm-bundle.tar --2021-04-06 11:29:49-- https://cd