-- 让wget直接去网页上安装mysql的安装包,可以解决一些依赖问题
2 wget -i -c http://dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm
wget -i -c https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm
3 yum -y install mysql80-community-release-el7-3.noarch.rpm
yum -y install mysql-community-server
Failing package is: mysql-community-server-5.7.37-1.el7.x86_64
GPG Keys are configured as: file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
解决办法 在yum install 版本后面加上 --nogpgcheck,即可绕过GPG验证成功安装。
yum install mysql-community-server --nogpgcheck
-- 查看mysql的3306端口,确认下mysql的服务是否打开
6 netstat -nltp | grep 3306
-- 去mysql的log日志中查找他的初始密码
7 grep "password" /var/log/mysqld.log 查看原始密码
grep 'password' /var/log/mysqld.log
2020-06-24T07:21:25.731630Z 1 [Note] A temporary password is generated for root@localhost: Apd>;WYEc2Ir
-- 如果登录不进去的情况下,可以尝试 mysql -u root -p 然后回车在将密码复制进去
2020-06-24T07:21:48.097350Z 2 [Note] Access denied for user 'root'@'localhost' (using password: NO)
8 登录 mysql -uroot -pWYEc2Ir
-- 修改mysql的密码,首先设置两个参数,这样密码就可以设置成123456这种简单的密码
SET GLOBAL validate_password.policy=LOW;
SET GLOBAL validate_password.length=4;
mysql> set global validate_password_policy=0;
mysql> set global validate_password_length=1; 这个两个设置以后 密码很简单不会报错
alter user user() identified by "XXXXXX"; xxxx 就是你的新密码