CentOS 装 mysql5.7

1. 使用 wget 下载官方 yum 源的 rpm 包

wget https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm

2. 安装 rpm 包

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

3. 使用 yum 来安装 mysql-server

yum install -y mysql-server

4. 启动 mysql 服务

systemctl start mysqld

5. 查看是否启动成功

ps aux|grep mysql

6. 将 mysql 设置为开机启动

systemctl enable mysqld

7. 查看命令 cat 命令查看初始密码 i5j/UEdhcvo% 为初始密码

cat /var/log/mysqld.log | grep 'A temporary password'
2018-10-09T08:09:51.119100Z 1 [Note] A temporary password is generated for     root@localhost: i5j/UEdhcvo%

8.使用初始密码登录

mysql –uroot –p i5j/UEdhcvo%

9. 修改数据库密码

mysql> ALTER USER 'root'@'localhost' identified by '此处填写新密码';
Query OK, 0 rows affected (0.00 sec)