CentOS 7.4经过rpm包离线安装 Mysql8.0

下载 rpm包

wget https://goodrain-pkg.oss-cn-shanghai.aliyuncs.com/mysql8.rpm
tar xvf mysql8.rpm
cd mysql/

卸载mariadb

rpm -qa|grep mariadb
rpm -e mariadb-libs-5.5.65-1.el7.x86_64 --nodeps

安装 MySQL

rpm -ivh mysql-community-server-8.0.20-1.el7.x86_64.rpm mysql-community-client-8.0.20-1.el7.x86_64.rpm mysql-community-common-8.0.20-1.el7.x86_64.rpm mysql-community-libs-8.0.20-1.el7.x86_64.rpm net-tools-2.0-0.25.20131004git.el7.x86_64.rpm

启动 MySQL

systemctl restart mysqld
systemctl enable mysqld

获取密码

$ grep "A temporary password is generated for root@localhost" /var/log/mysqld.log
2020-06-07T12:51:10.889926Z 6 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: 7Pq+r7v5H:d1

登陆并修改密码

mysql -uroot -p7Pq+r7v5H:d1
### 初始化时已更改root密码，这里能够省略
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'Www.1.com';

建立用户并受权

### 为了不SQLyog链接8.0报：Error No.2058 Plugin caching_sha2_password could not be loaded，后续工具更新后，再使用8.0新的加密方式
mysql> CREATE USER 'test'@'%' IDENTIFIED WITH mysql_native_password BY 'Www.1.com';
### 授予test用户全部权限
mysql> GRANT ALL PRIVILEGES ON *.* TO 'test'@'%' WITH GRANT OPTION;