CentOS 7 安装 mysql

1. 官网下载最新mysql的yum安装包

https://dev.mysql.com/downloads/repo/yum/

2. 安装deltarpm

yum provides '*/applydeltarpm'    #查看依赖包的位置
yum -y install deltarpm           #安装命令

3. 安装mysql源, 并查看安装效果

yum -y install mysql80-community-release-el7-1.noarch.rpm

yum repolist enable|grep mysql.*

4. 安装mysql服务

yum -y install mysql-community-server

5.启动mysql服务，查看运行状态

systemctl start  mysqld.service  #启动服务

systemctl status mysqld.service  #查看运行状态

6. 查看初始化数据库的密码，登录并修改密码

grep "password" /var/log/mysqld.log

红框中是我本地的初始化密码

登录

mysql -root -p

修改密码

ALTER USER 'root'@'localhost' IDENTIFIED BY '********'; #密码必须大于8位，并且包含字母数字和特殊字符

7. 设置自启动

systemctl enable mysqld


systemctl daemon-reload