yum 安装mysql

安装依赖

yum install libaio wget -y
检查MYSQL是否已安装

yum list installed | grep mysql

如果有先卸载

# 格式 yum -y remove [包名]
yum -y remove mysql-libs.x86_64

下载MySQL官网的仓库文件

cd /tmp

wget http://repo.mysql.com/mysql80-community-release-el7-1.noarch.rpm

yum localinstall mysql80-community-release-el7-1.noarch.rpm

验证仓库是否添加成功

yum repolist enabled | grep "mysql.*-community.*"

安装MySQL

yum install mysql-community-server -y

时MySQL 安装完成，它包含了 

mysql-community-server、mysql-community-client
mysql-community-common、mysql-community-libs 四个包

执行

rpm -qi mysql-community-server.x86_64 0:8.0.16-2.el7

然后

whereis mysql

可以看到MySQL 的安装目录是 /usr/bin/

启动服务

systemctl start mysqld

systemctl enable mysqld

systemctl status mysqld

查找初始密码

cat /var/log/mysqld.log | grep password

mysql -uroot -p

mysql> ALTER USER 'root'@'%' IDENTIFIED BY 'hbV0pOO!(Z#R' PASSWORD EXPIRE NEVER;

mysql> ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY 'hbV0pOO!(Z#R';

mysql> FLUSH PRIVILEGES;

mysql> alter user 'root'@'%' identified by 'hbV0pOO!(Z#R';

测试连接