国内速度最快的centos5.4 yum(更新源)

centos5.5时代又来了，更新下（10.6.11）

安装后请按照以下步骤修改CenOS-Base.repo,以后就可以方便的用yum安装软件了.   

cd /etc/yum.repos.d   
mv CentOS-Base.repo  CentOS-Base.repo.save   
wget http://centos.ustc.edu.cn/CentOS-Base.repo.5   
mv CentOS-Base.repo.5 CentOS-Base.repo 

第一步：修改/etc/yum.repos.d/CentOS- Base.repo为:

[base]    
name=CentOS-5 - Base    
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever5&arch=$basearch&    
repo=os    
#baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/    
baseurl=http://ftp.sjtu.edu.cn/centos/5.4/os/$basearch/    
gpgcheck=1    
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5   
  
#released updates    
[update]    
name=CentOS-5 - Updates    
#mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=updates    
baseurl=http://ftp.sjtu.edu.cn/centos/5.4/updates/$basearch/    
gpgcheck=1    
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5   
  
#packages used/produced in the build but not released    
[addons]    
name=CentOS-5 - Addons    
#mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=addons   
  
baseurl=http://ftp.sjtu.edu.cn/centos/5.4/addons/$basearch/    
gpgcheck=1    
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5   
  
#additional packages that may be useful    
[extras]    
name=CentOS-5 - Extras    
#mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=extras   
  
baseurl=http://ftp.sjtu.edu.cn/centos/5.4/extras/$basearch/    
gpgcheck=1    
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5   
  
#additional packages that extend functionality of existing packages    
[centosplus]    
name=CentOS-5 - Plus    
#mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=centosplus    
baseurl=http://ftp.sjtu.edu.cn/centos/5.4/centosplus/$basearch/    
gpgcheck=1    
enabled=0    
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5   
  
#contrib - packages by Centos Users    
[contrib]    
name=CentOS-5 - Contrib    
#mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=contrib    
baseurl=http://ftp.sjtu.edu.cn/centos/5.4/contrib/$basearch/    
gpgcheck=1    
enabled=0    
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5  

第二步：64位: rpm --import http://ftp.sjtu.edu.cn/centos/5.4/os/x86_64/RPM-GPG-KEY-CentOS-5
32位: rpm --import http://ftp.sjtu.edu.cn/centos/5.4/os/i386/RPM-GPG-KEY-CentOS-5

第三步：yum update