版本： 6.4
框架：x86_64
更新時間：每5小時更新一次
1. 首先備份/etc/yum.repos.d/CentOS-Base.repo
[root@localhost ~]# mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak

2. 下載對應版本repo檔案, 放入/etc/yum.repos.d/(操作前請做好相應備份)

CentOS6

# CentOS-Base.repo 
# 
# The mirror system uses the connecting IP address of the client and the 
# update status of each mirror to pick mirrors that are updated to and 
# geographically close to the client.  You should use this for CentOS updates 
# unless you are manually picking other mirrors. 
# 
# If the mirrorlist= does not work for you, as a fall back you can try the 
# remarked out baseurl= line instead. 
# 
# 
[base] 
name=CentOS-$releasever - Base - 163.com 
baseurl=
#mirrorlist=
gpgcheck=1 
gpgkey=
#released updates 
[updates] 
name=CentOS-$releasever - Updates - 163.com 
baseurl=
#mirrorlist=
gpgcheck=1 
gpgkey=
#additional packages that may be useful 
[extras] 
name=CentOS-$releasever - Extras - 163.com 
baseurl=
#mirrorlist=
gpgcheck=1 
gpgkey=
#additional packages that extend functionality of existing packages 
[centosplus] 
name=CentOS-$releasever - Plus - 163.com 
baseurl=
#mirrorlist=
gpgcheck=1 
enabled=0 
gpgkey=
#contrib - packages by Centos Users 
[contrib] 
name=CentOS-$releasever - Contrib - 163.com 
baseurl=
#mirrorlist=
gpgcheck=1 
enabled=0 
gpgkey=

CentOS5
# CentOS-Base.repo 
# 
# The mirror system uses the connecting IP address of the client and the 
# update status of each mirror to pick mirrors that are updated to and 
# geographically close to the client.  You should use this for CentOS updates 
# unless you are manually picking other mirrors. 
# 
# If the mirrorlist= does not work for you, as a fall back you can try the 
# remarked out baseurl= line instead. 
# 
# 
[base] 
name=CentOS-$releasever - Base - 163.com 
baseurl=
#mirrorlist=
gpgcheck=1 
gpgkey=
#released updates 
[updates] 
name=CentOS-$releasever - Updates - 163.com 
baseurl=
#mirrorlist=
gpgcheck=1 
gpgkey=
#packages used/produced in the build but not released 
[addons] 
name=CentOS-$releasever - Addons - 163.com 
baseurl=
#mirrorlist=
gpgcheck=1 
gpgkey=
#additional packages that may be useful 
[extras] 
name=CentOS-$releasever - Extras - 163.com 
baseurl=
#mirrorlist=
gpgcheck=1 
gpgkey=
#additional packages that extend functionality of existing packages 
[centosplus] 
name=CentOS-$releasever - Plus - 163.com 
baseurl=
#mirrorlist=
gpgcheck=1 
enabled=0 
gpgkey=
#contrib - packages by Centos Users 
[contrib] 
name=CentOS-$releasever - Contrib - 163.com 
baseurl=
#mirrorlist=
gpgcheck=1 
enabled=0 
gpgkey=

3. 執行yum makecache生成快取
[root@localhost yum.repos.d]# yum makecache 
Loaded plugins: fastestmirror 
Metadata Cache Created

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