今天安装Mysql5.7报错了，报错截图如下：
warning: /var/cache/yum/x86_64/7/mysql57-community/packages/mysql-community-libs-compat-5.7.38-1.el7.x86_64.rpm: Header V4 RSA/SHA256 Signature, key ID 3a79bd29: NOKEY Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql The GPG keys listed for the "MySQL 5.7 Community Server" repository are already installed but they are not correct for this package. Check that the correct key URLs are configured for this repository. Failing package is: mysql-community-libs-compat-5.7.38-1.el7.x86_64 GPG Keys are configured as: file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
这种情况的解决方法就是加上- -nogpgcheck就可以了：禁掉GPG验证检查
[root@zabbix-server ~]# yum -y install mysql mysql-server --nogpgcheck
