RPM 安装 MySQL

1、删除 mariadb 相关软件包

yum remove mariadb-libs

检查是否安装过并删除

rpm -qa | grep -i mysql

//强力删除，对相关依赖的文件也进行强力删除
rpm -e --nodeps 软件名

安装必备工具

yum install -y net-tools

2、下载安装包 https://dev.mysql.com/downloads/mysql/

1. Select Operating System: Red Hat Enterprise Linux / Oracle Linux
2. Select OS Version: Red Hat Enterprise Linux 7 / Oracle Linux 7 (x86, 64-bit)， 与CentOS版本对应
3. 下载：RPM Bundle

3、解压

tar xf mysql-5.7.35-1.el7.x86_64.rpm-bundle.tar

4、按顺序安装

如果途中报 libaio.so.1()(64bit) is needed by MySQL-server，则需安装libaio： yum install libaio

rpm -ivh mysql-community-common-xxxxxx.x86_64.rpm
rpm -ivh mysql-community-libs-xxxxxx.x86_64.rpm
rpm -ivh mysql-community-client-xxxxxx.x86_64.rpm
rpm -ivh mysql-community-server-xxxxxx.x86_64.rpm

5、启动

systemctl status mysqld
systemctl start mysqld
systemctl enable mysqld	#开机启动

6、获取随机密码

grep 'temporary password' /var/log/mysqld.log

7、使用随机密码登录root，修改密码

mysql -u root -p
ALTER USER 'root'@'localhost' IDENTIFIED BY 'eKwRRtttBwjIRc_AO2!Y84';