mysql安装在指定目录
1、版本：mysql-5.7.20-1.el7.x86_64.rpm-bundle.tar
安装依赖\# yum remove mariadb-libs //删除 mariadb相关内容
\# yum install perl
\# yum install numactl
\# yum install libaio
\# yum install net-tools
解压mysql安装包\# tar -xvf mysql-5.7.20-1.el7.x86_64.rpm-bundle.tar
安装\# rpm -ivh commom ---- lib ------- client-------server
按顺序逐一安装完成
修改数据地址\# vim /etc/my.cnf
SELINUX设置\# vim /etc/selinux/config
把SELINUX的参数修改成disabled即可：
创建数据存放目录\# mkdir /opt/mysqldata
目录授权\# chown -R mysql:mysq /opt/mysqldata
启动数据库\# systemctl start mysqld.service
查看临时密码\# grep 'temporary password' /var/log/mysqld.log
登录修改密码\# mysql -uroot -p
alter user root@localhost identified by ‘root123’
use mysql
create user 'root'@'%' identified by 'root123';
flush privileges;
grant all on . to 'root'@'%' identified by 'root123';
flush privileges;
安装完成