CentOS 5.6上的Yum更新错误
我的笔记本电脑上装有CentOS 5.6。 输入时yum update,出现以下错误: Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile YumRepo Error: All mirror URLs are not using ftp, http[s] or file. Eg. Invalid release/ removing mirrorlist with no valid mirrors: /var/cache/yum/base/mirrorlist.txt Error: Cannot find a valid baseurl for repo: base 以下是我的/etc/yum.repos.d/CentOS-Base.repo文件(我没有对其进行任何更改): [base] name=CentOS-$releasever - Base mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os …