https://www.baota.me/post-212.html zh-CN 备份cd /etc/yum.repos.d/mkdir repo_bakmv *.repo repo_bak/下载新的CentOS-Base.repo 到/etc/yum.repos.d/(多选... Thu, 01 Jan 1970 08:00:00 +0800 Thu, 01 Jan 1970 08:00:00 +0800