说明：本文Mysql下载目录/home/apps/本文Mysql安装目录/home/apps/mysql本文Mysql数据目录/home/apps/mysql/data以下是步骤：1.创建下载目录#cdhome#mkdirapps2.下载mysql5.7安装包#cd/home/apps#wgetttps://downloads.mysql.com/archives/get/p/23/file/mysql-5.7.29-linux-glibc2.12-x86_64.tar.gz3.解压安装包#tar-zxvfmysql-5.7.29-linux-glibc2.12-x86_64.tar.gz#lsmysql-5.7.29-linux-glibc2.12-x86_64mysql-5.7.29-linux-glibc2.12-x86_64.tar.gz4。将解压后的mysql目录内容复制到系统本地软件目录#cp-rmysql-5.7.29-linux-glibc2.12-x86_64/*/home/apps/mysql/5。创建mysql用户组和mysql用户#groupaddmysql#useradd-r-gmysqlmysql6.运行mysql安装目录属于mysql用户和用户组#chown-Rmysql:mysql/home/apps/mysql/7。更改mysql安装文件文件夹mysql/#chmod-R755/home/apps/mysql/8的权限。初始化mysql命令#cd/home/apps/mysql/bin#./mysqld--user=mysql--basedir=/home/apps/mysql--datadir=/home/apps/mysql/data--initialize9。执行成功后，最后一句如下，XXXXXX为root用户初始化后的密码。为root@localhost生成一个临时密码：XXXXXX10。修改Mysql配置文件#vim/home/apps/mysql/support-files/my修改后的sql.server内容如图11所示，复制mysql脚本到/etc/init.d#cp/home/apps/mysql/support-files/mysql.server/etc/init.d/mysqld12。修改my.cnf文件#vim/etc/my.cnf修改内容如下13.启动mysql#/etc/init.d/mysqldstart也可以这样启动#cdsoftware/mysql/support-files/#shmysql.serverstart14.登录mysql#mysql-uroot-p#刚初始化目录后输入密码15.修改root密码（新版mysql使用authentication_string代替password字段）#updatemysql.usersetauthentication_string=password('root')其中user='root';16、修改root密码不过期updateusersetpassword_expired="N"whereuser="root";17.刷新，退出#flushprivileges;＃出口;
