CentOS 6.3更新源(163的)

1、#cd /etc/yum.repos.d

2、#cp CentOS-Base.repo CentOS-Base_backpag.repo  //备份当前源

3、#ll

 -rw-r--r--. 1 root root 2006 Aug 31 2011 CentOS-Base.repo

 -rw-r--r--. 1 root root 1926 Oct 5 23:21 CentOS-Base.repo-backpag

 -rw-r--r--. 1 root root  637 Jun26 02:29 CentOS-Debuginfo.repo

 -rw-r--r--. 1 root root  626 Jun26 02:29 CentOS-Media.repo

 -rw-r--r--. 1 root root 2593 Jun 26 02:29CentOS-Vault.repo

4、#gedit CentOS-Base.repo

把原始内容替换为想要的源（如下网易163 CentOS6*的源），该步骤开始请先不要照做，亲，埋头往下看吧。

# CentOS-Base.repo

#

# The mirror system uses the connecting IP address of theclient and the

# update status of each mirror to pick mirrors that areupdated to and

# geographically close to the client.  Youshould use this for CentOS updates

# unless you are manually picking other mirrors.

#

# If the mirrorlist= does not work for you, as a fall back youcan try the 

# remarked out baseurl= line instead.

#

#

[base]

name=CentOS-$releasever - Base - 163.com

baseurl=http://mirrors.163.com/centos/$releasever/os/$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=http://mirrors.163.com/centos/$releasever/updates/$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=http://mirrors.163.com/centos/$releasever/extras/$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 existingpackages

[centosplus]

name=CentOS-$releasever - Plus - 163.com

baseurl=http://mirrors.163.com/centos/$releasever/centosplus/$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=http://mirrors.163.com/centos/$releasever/contrib/$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

5、#yum update

6、ok

以上（4~6）只供观看，介绍更简单的方法：

1、#cd /etc/yum.repos.d

2、#cp CentOS-Base.repo CentOS-Base_backpag.repo   //备份当前源

3、# wgethttp://mirrors.163.com/.help/CentOS6-Base-163.repo//直接163下载相关的源

4、#ll

  -rw-r--r--.1 root root 2006 Aug 31  2011CentOS6-Base-163.repo.1  //这就是我们想要的（163源）

  -rw-r--r--. 1 root root 2006 Aug 31 2011 CentOS-Base.repo

  -rw-r--r--. 1 root root1926 Oct  5 23:21CentOS-Base.repo-backpag

  -rw-r--r--. 1 root root 637 Jun 26 02:29 CentOS-Debuginfo.repo

  -rw-r--r--. 1 root root 626 Jun 26 02:29 CentOS-Media.repo

  -rw-r--r--. 1 root root 2593 Jun 26 02:29CentOS-Vault.repo

5、#mv CentOS6-Base-163.repo.1 CentOS-Base.repo //替换当前源 

6、#yum update