设置linux源

1、修改 /etc/yum.repos.d/CentOS-Base.repo,替换未 查看模式下按200dd，删除200行的意思，然后按o，或者i进入编辑模式

2、粘贴如下内容，主要linxu粘贴的时候，会粘贴少内容顶部的内容会不完全粘贴进去，主要对比，还有我用的是centos6，

 [base]

name=CentOS-6 - Base

baseurl=http://mirrors.163.com/centos/6/os/$basearch/

gpgcheck=1

gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

[updates]

name=CentOS-6 - Updates

baseurl=http://mirrors.163.com/centos/6/updates/$basearch/

gpgcheck=1

gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

[extras]

name=CentOS-6 - Extras

baseurl=http://mirrors.163.com/centos/6/extras/$basearch/

gpgcheck=1

gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

[centosplus]

name=CentOS-6 - Plus

baseurl=http://mirrors.163.com/centos/6/centosplus/$basearch/

gpgcheck=1

enabled=0

gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

[contrib]

name=CentOS-6 - Contrib

baseurl=http://mirrors.163.com/centos/6/contrib/$basearch/

gpgcheck=1

enabled=0

gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6