执行命令后，可能会出现下面的错误信息

yum install mysql-community-server

Public key for mysql-community-libs-5.7.44-1.el7.x86_64.rpm is not installed

Failing package is: mysql-community-libs-5.7.44-1.el7.x86_64 GPG Keys are configured as: file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

原因是MySQL的GPG升级了，需要重新导入，执行下面的命令即可：

rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2022

yum install mysql-community-server

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