centos4.0 yum源地址

錯誤提示:

[root@fm3 yum.repos.d]# yum update yum
Setting up Update Process
Setting up repositories
not using ftp, http[s], or file for repos, skipping - 4 is not a valid release or hasnt been released yet
Cannot find a valid baseurl for repo: update
Error: Cannot find a valid baseurl for repo: update

原因:yum源http://mirror.centos.org/centos/4/不可用所致

下載http://vault.centos.org/4.9/CentOS-Base.repo該文件，然後將其中的4.9全部替換成4.0，覆蓋/etc/yum.repos.d/CentOS-Base.repo
其他4.0的版本也可以使用這個方法

reflink:https://blog.csdn.net/u013615806/article/details/51043938