今天安装MySQL（离线）的时候，发现安着安着，就出问题了，在网上找了解决方法，所以分享一下给大家

报错内容

我是在把压缩包放到liunx 之后，解压，往下操作的时候出的错

[root@localhost mysql]# tar -xvf mysql-5.7.30-1.el7.x86_64.rpm-bundle.tar
mysql-community-common-5.7.30-1.el7.x86_64.rpm
mysql-community-server-5.7.30-1.el7.x86_64.rpm
mysql-community-test-5.7.30-1.el7.x86_64.rpm
mysql-community-client-5.7.30-1.el7.x86_64.rpm
mysql-community-embedded-5.7.30-1.el7.x86_64.rpm
mysql-community-libs-5.7.30-1.el7.x86_64.rpm
mysql-community-devel-5.7.30-1.el7.x86_64.rpm
mysql-community-embedded-compat-5.7.30-1.el7.x86_64.rpm
mysql-community-embedded-devel-5.7.30-1.el7.x86_64.rpm
mysql-community-libs-compat-5.7.30-1.el7.x86_64.rpm

安装

rpm -ivh mysql-community-common-5.7.23-1.el7.x86_64.rpm

rpm -ivh mysql-community-libs-5.7.23-1.el7.x86_64.rpm

rpm -ivh mysql-community-client-5.7.23-1.el7.x86_64.rpm

//安装之前，请先检查是否安装libaio,如果未安装请先安装之后再装server源
rpm -qa|grep libaio

rpm -ivh mysql-community-server-5.7.23-1.el7.x86_64.rpm

因为这是我在不同的虚拟机里面安装MySQL，所以执行顺序要发生了改变，因为这些包有依赖顺序，而且版本有先后

rpm -ivh mysql-community-server-5.7.30-1.el7.x86_64.rpm --force --nodeps


rpm -ivh mysql-community-common-5.7.30-1.el7.x86_64.rpm --force --nodeps


rpm -ivh mysql-community-libs-5.7.30-1.el7.x86_64.rpm --force --nodeps


rpm -ivh mysql-community-client-5.7.30-1.el7.x86_64.rpm --force --nodeps

systemctl start mysqld // 启动

systemctl status mysqld // 查看状态

查看临时密码:

 grep password /var/log/mysqld.log

例如我这个的临时密码就是  hhrcu5nV-A(z

然后使用 mysql -u root -p 回车 输入临时密码

 进入之后分别使用

set global validate_password_policy=0;

set global validate_password_length=1;

alter user 'root'@'localhost' identified by '123456';

 开启远程连接

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;

1. firewall-cmd --zone=public --query-port=3306/tcp

2. firewall-cmd --zone=public --add-port=3306/tcp --permanent
3. firewall-cmd --reload
4. firewall-cmd --zone=public --query-port=3306/tcp

然后查看mysql是否启动成功

systemctl status mysqld

 然后测试连接