解决一个centos yum 源出错的问题

怪了，无聊时163/sohu还是阿里云，都粗错：
 Eg. Invalid release/
removing mirrorlist with no valid mirrors: /var/cache/yum/x86_64/6.0/base/mirrorlist.txt
Error: Cannot retrieve repository metadata (repomd.xml) for repository: base. Please verify its path and try again

removing mirrorlist with no valid mirrors: /var/cache/yum/x86_64/6.0/base/mirrorlist.txt
Error: Cannot retrieve repository metadata (repomd.xml) for repository: base. Please verify its path and try again

[root@mail yum.repos.d]#  yum makecache
Loaded plugins: security
[Errno 14] HTTP Error 404 :
Trying other mirror.

其实很简单，就是没有centos/6.0/...这个目录的，要改！
#


[base]
name=CentOS-$releasever - Base - mirrors.aliyun.com
failovermethod=priority
baseurl=
       
mirrorlist=
gpgcheck=1
gpgkey=


#released updates 
[updates]
name=CentOS-$releasever - Updates - mirrors.aliyun.com
failovermethod=priority
baseurl=
       
mirrorlist=
gpgcheck=1
gpgkey=


#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - mirrors.aliyun.com
failovermethod=priority
baseurl=
       
mirrorlist=
gpgcheck=1
gpgkey=


#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus - mirrors.aliyun.com
failovermethod=priority
baseurl=
       
mirrorlist=
gpgcheck=1
enabled=0
gpgkey=


#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib - mirrors.aliyun.com
failovermethod=priority
baseurl=
       
mirrorlist=
gpgcheck=1
enabled=0
gpgkey=
~                                                                                                            
就是把那个什么$releasever直接改成6，而不是6.0，系统变量默认出来是6.0,所以错了。这样 就可以了！

yum clean all

rm -f /var/lib/rpm/__db*

rpm --rebuilddb

yum clean metadata

 yum makecache

 yum repolist all

yum info kernel

 yum list installed

十分感谢我马哥！这个开源资源真的好！