[root@node0002 ~]# yum install man man-pages
Loaded plugins: fastestmirror
YumRepo Error: All mirror URLs are not using ftp, http[s] or file.
Eg. Invalid release/repo/arch combination/
removing mirrorlist with no valid mirrors: /var/cache/yum/x86_64/6/base/mirrorlist.txt
Error: Cannot retrieve repository metadata (repomd.xml) for repository: base. Please verify its path and try again
yum安装时，提示以上错误，百度的结果一般让替换成163、阿里的yum源
[root@node0001 yum.repos.d]# yum clean all && yum makecache
Loaded plugins: fastestmirror
Cleaning repos: base extras updates
Cleaning up Everything
Cleaning up list of fastest mirrors
Loaded plugins: fastestmirror
Determining fastest mirrors
http://mirrors.163.com/centos/6.5/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404 Not Found"
Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for repository: base. Please verify its path and try again
替换后其实还是会有别的错误 http://mirrors.163.com/centos/6.6/os/x86_64/repodata/repomd.xml 404错误
直接打开链接可以看到，确实没有这些页面，而且目录下也没有6.6一下的页面目录，6.6目录页下只有readme 文件，内容如下：
This directory (and version of CentOS) is deprecated. For normal users,
you should use /6/ and not /6.6/ in your path. Please see this FAQ
concerning the CentOS release scheme:
https://wiki.centos.org/FAQ/General
If you know what you are doing, and absolutely want to remain at the 6.6
level, go to http://vault.centos.org/ for packages.
Please keep in mind that 6.0, 6.1, 6.2, 6.3, 6.4 , 6.5 and 6.6 no longer gets any updates, nor
any security fix's.
大致意思就是让你去这里找包就行了:http://vault.centos.org/
打开这个地址可以看到6.5页面目录下的层级有os/x86_64/repodata，进去看到也有repomd.xml文件
直接将163yum源的配置文件内容修改为如下即可：替换内容为加粗部分
# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client. You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the
# remarked out baseurl= line instead.
#
#
[base]
name=CentOS-$releasever - Base - 163.com
baseurl=https://vault.centos.org/6.5/os/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#released updates
[updates]
name=CentOS-$releasever - Updates - 163.com
baseurl=https://vault.centos.org/6.5/updates/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - 163.com
baseurl=https://vault.centos.org/6.5/extras/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus - 163.com
baseurl=https://vault.centos.org/6.5/centosplus/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib - 163.com
baseurl=https://vault.centos.org/6.5/contrib/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
然后执行 yum clean all && yum makecache 即可，其他版本按照此思路替换成https://vault.centos.org下的对应版本目录即可
