centos 6.4 更新源地址

执行如下命令：

mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.old

vim /etc/yum.repos.d/CentOS-Base.repo   （粘贴下面的更新源地址，[小提示]vim粘贴方法：首先选中更新源地址内容，然后在vim中按下字母i进入编辑模式，然后点击鼠标中间，即可粘贴刚才选中的内容）

yum update

更新源地址如下：

[base]   
name=CentOS-6 - Base   
repo=os   
baseurl=http://mirrors.163.com/centos/6.4/os/$basearch/   
gpgcheck=1   
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6   
       
#released updates   
[update]   
name=CentOS-6 - Updates   
baseurl=http://mirrors.163.com/centos/6.4/updates/$basearch/   
gpgcheck=1   
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6   
       
#packages used/produced in the build but not released   
#[addons]   
#name=CentOS-6 - Addons   
#baseurl=http://mirrors.163.com/centos/6.4/addons/$basearch/   
#gpgcheck=1   
#gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6   
       
#additional packages that may be useful   
[extras]   
name=CentOS-6 - Extras   
baseurl=http://mirrors.163.com/centos/6.4/extras/$basearch/   
gpgcheck=1   
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6   
       
       
#additional packages that extend functionality of existing packages   
[centosplus]   
name=CentOS-6 - Plus   
baseurl=http://mirrors.163.com/centos/6.4/centosplus/$basearch/   
gpgcheck=1   
enabled=1   
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6   
       
#contrib - packages by Centos Users   
[contrib]   
name=CentOS-6 - Contrib   
baseurl=http://mirrors.163.com/centos/6.4/contrib/$basearch/   
gpgcheck=1   
enabled=0   
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6