註意官方是很不提倡用root的。

下載並安裝MySQL

最新的rpm地址 https://dev.mysql.com/downloads/repo/yum/

#wget https://repo.mysql.com//mysql57-community-release-el7-11.noarch.rpm 
#rpm -ivh mysql57-community-release-el7-11.noarch.rpm
#yum install mysql-server

重置root密碼

# systemctl stop mysqld
# systemctl set-environment MYSQLD_OPTS="
 
--skip-grant-tables"
# systemctl start mysqld
# mysql -u root

mysql>  UPDATE mysql.user
    ->     SET authentication_string = PASSWORD(‘password‘), password_expired = ‘N‘
    ->     WHERE User = ‘root‘ AND Host = ‘localhost‘;
    ->     FLUSH PRIVILEGES;
    ->     quit

# systemctl stop mysqld
# systemctl unset
 
-environment MYSQLD_OPTS
# systemctl start mysqld
# mysql -u root -p
Enter password: 

mysql> show databases;

記錄下 rhel 7 安裝MySQL 並重置root密碼