1. Download mysql
#进入local目录 cd /usr/local/ #下载mysql wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.17-linux-glibc2.5-x86_64.tar.gz
2. Unzip mysql and change the name
tar -zxvf mysql-5.7.17-linux-glibc2.5-x86_64.tar.gz mv mysql-5.7.17-linux-glibc2.5-x86_64 mysql mkdir data
3. Add users and groups
groupadd mysql useradd -r -s /sbin/nologin -g mysql mysql -d /usr/local/mysql chown -R mysql.mysql /usr/local/mysql/
4. Installation command
yum -y install libaio-devel ./bin/mysql_install_db --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data/ cp -a ./support-files/my-default.cnf /etc/my.cnf cp -a ./support-files/mysql.server /etc/init.d/mysqld
5. Modify the configuration file
#打开配置目录 vi /etc/my.cnf #增加目录配置 basedir=/usr/local/mysql/ datadir=/usr/local/mysql/data
6. Start, modify the root password, and add remote connection user permissions
#修改环境变量配置文件 vi /etc/profile #增加mysql全局变量，使service mysqld start可以在任意位置使用 export PATH=$PATH:/usr/local/mysql/bin #即时生效 source /etc/profile #启动mysql service mysqld start
#mysql刚安装完毕没有密码进入mysql命令行
mysql -uroot -p
#查询mysql用户
select User, Host, Password FROM mysql.user;
#修改root密码
update mysql.user set password=password('root') where User="root";
#为root添加远程权限
grant all privileges on *.* to 'root'@'%'identified by 'root' with grant option;
#刷新权限
flush privileges;
