Centos7 安装MySQL 5.7.34 (含补包)

1. 下载安装文件

wget https://cdn.mysql.com//Downloads/MySQL-5.7/mysql-5.7.34-1.el7.x86_64.rpm-bundle.tar

2. 解归档到指定文件夹

mkdir mysql
tar -xf mysql-5.7.34-1.el7.x86_64.rpm-bundle.tar -C mysql
cd mysql

3. 卸载MariaDB的库文件

yum erase -y mariadb-libs

4. 补充底层依赖项

yum install -y libaio libaio-devel

5. 使用RPM安装（严格按顺序）

rpm -ivh mysql-community-common-5.7.34-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-5.7.34-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-compat-5.7.34-1.el7.x86_64.rpm
rpm -ivh mysql-community-devel-5.7.34-1.el7.x86_64.rpm
rpm -ivh mysql-community-client-5.7.34-1.el7.x86_64.rpm
rpm -ivh mysql-community-server-5.7.34-1.el7.x86_64.rpm

6. 启动MySQL

systemctl start mysqld

7. 查看初始密码

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

8. 用客户端工具连接并修改密码（建议使用强口令）

mysql -u root -p
mysql> alter user root@localhost identified by Helle.618;

如果使用CentOS 8.x，需要调整以下两个步骤： yum install -y perl 不需要安装mysql-community-libs-compat-xxx包