sudo rpm -ivh mysql57-community-release-el7-11.noarch.rpm

3.安裝mysql

sudo yum install mysql-community-server

4.啟動mysql，檢查服務狀態

sudo systemctl start  mysqld

sudo systemctl status mysqld

5.在mysqld.log中找初始root密碼

vim /var/log/mysqld.log 

2017-05-06T11:06:17.676980Z 1 [Note] A temporary password is generated for
 
 root@localhost: K/Lee7silq5p

6.用密碼登入mysql

mysql -u root -p

7.修改root密碼

ALTER USER 'root'@'localhost' IDENTIFIED BY '******';