更改centos yum 成中国镜像加快yum速度

163的开源镜像地址 http://mirrors.163.com/.help/CentOS-Base-163.repo
不同版本见http://mirrors.163.com/.help/centos.html

sohu的开源镜像地址 http://mirrors.sohu.com/help/CentOS-Base-sohu.repo
不同版本见http://mirrors.sohu.com/help/centos.html (只支持4, 5版本)

中国科技大学 http://lug.ustc.edu.cn/wiki/_export/code/mirrors/help/centos?codeblock=2
不同版本见http://lug.ustc.edu.cn/wiki/mirrors/help/centos

如果使用上面YUM源的话,最好把里面的 mirrorlist 注释掉,否则系统会启动 fastesmirror 插件自动检查的,并不一定会使用这个yum源的.

我用的是中国科技大学的速度不错。

法一:直接下载源文件

CentOS USTC mirror 这个镜像不错,大家更新可用这个

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

注意:如果为第一次安装的新系统的话,则需要先安装wget这个下载软件,不然没有办法下载CentOS-Base.repo这个文件的。

法二:手动创建源文件

更改yum镜像站点为中国站点地址,推荐http://centos.ustc.edu.cn/centos/。(中国科技大学)

#cd /etc/yum.repos.d/

#mv CentOS-Base.repo CentOS-Base.repo.bak

#vi CentOS-Base.repo

修改 /etc/yum.repos.d/CentOS-Base.repo 如下:

#———————————–分割线以内的———————————————–

# CentOS-Base.repo
#
# This file uses a new mirrorlist system developed by Lance Davis for CentOS.
# 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-$releasever - Base
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
baseurl=http://centos.ustc.edu.cn/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#released updates
[updates]
name=CentOS-$releasever - Updates
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
baseurl=http://centos.ustc.edu.cn/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#packages used/produced in the build but not released
[addons]
name=CentOS-$releasever - Addons
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=addons
baseurl=http://centos.ustc.edu.cn/centos/$releasever/addons/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
baseurl=http://centos.ustc.edu.cn/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
baseurl=http://centos.ustc.edu.cn/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#———————————–分割线以内的———————————————–

简单的说就是把mirrorlist注释掉,将baseurl改成centos.ustc.edu.cn的镜像地址。

用下面命令测试:

# yum upgrade
#yum makecache

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