Is this ok [y/d/N]: y Downloading packages: 警告:/var/cache/yum/x86_64/7/mysql57-community/packages/mysql-community-server-5.7.44-1.el7.x86_64.rpm: 头V4 RSA/SHA256 Signature, 密钥 ID 3a79bd29: NOKEY 从 file
文章目录 报错信息解决方案 报错信息 W: GPG error: http://mirrors.aliyun.com/docker-ce/linux/ubuntu focal InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PU