1. 安装createrepo-0.9.8-4.el6.noarch.rpm如果提示错误:warning: createrepo-0.9.8-4.el6.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID fd431d51: NOKEYerror: Failed dependencies:deltarpm is needed by createrepo-0.9.8-4.el6.noarchpython-deltarpm is needed by createrepo-0.9.8-4.el6.noarch解决方法:[root@localhost ...