#mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak
#cd /etc/yum.repos.d/
#wget http-//mirrors-163-com/.help/CentOS6-Base-163.repo
#mv CentOS6-Base-163.repo CentOS-Base.repo
#yum clean all
#yum makecache
#yum update
在yum makecache支行，报一对错误：
http-//mirrors.163-com/centos/6/addons/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404 Not Found"
Trying other mirror.
http-//mirror.centos-org/centos/6/addons/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404 Not Found"
Trying other mirror.
我看了/etc/resolv.conf里面的几个DNS地址，都可以ping通，完全搞不明白要怎么办，求解答？
换个香港或者台湾的源试试 一般30K没问题的
用自动搜索功能，选择best source