yum安装mysql8

1. 打开官网MySQL安装文档

• https://dev.mysql.com/doc/refman/8.4/en/linux-installation-yum-repo.html

2. 根据Linux版本下载yum源

cat /etc/os-release

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

yum localinstall mysql84-community-release-el7-1.noarch.rpm

3. 查看可安装的MySQL包

yum repolist enabled | grep mysql.*-community

4. 安装MySQL

# EL8 systems 需要先禁止.
yum module disable mysql
yum install mysql-community-server

5. 启动MySQL

systemctl start mysqld

6. 登录MySQL

# 查看生成的随机密码
cat /var/log/mysqld.log |grep password

mysql -uroot -p

7. 初始化操作

-- 重置root密码
ALTER USER 'root'@'localhost' IDENTIFIED BY 'Test@123';
-- 设置root可以远程登录
update mysql.user set  host='%' WHERE user='root';
-- 刷新权限
FLUSH PRIVILEGES;

问题： Error: 13 (Permission denied)

vim /etc/selinux/config 
# 关闭后重启系统
SELINUX=disabled