更改centos yum 成中国镜像加快yum速度

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本文介绍如何将 CentOS yum 源切换为中国科技大学的镜像地址，以提高 yum 更新速度。通过修改 /etc/yum.repos.d/CentOS-Base.repo 文件，将 mirrorlist 注释掉，并将 baseurl 更改为 centos.ustc.edu.cn 的镜像地址。操作完成后，执行 yum update 测试即可验证速度提升。

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更改centos yum 成中国镜像加快yum速度

2009-12-25 13:09

http://centos.ustc.edu.cn/centos/。(中国科技大学)

此外还有新浪的和163的开源镜像地址。我用的是中国科技大学的速度不错。

#进入路径

cd /etc/yum.repos.d/

#备份 CentOS-Base.repo

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

#vi 编辑
vi CentOS-Base.repo

#把分割线以内的粘贴进去，这里www.iamle.cn使用的是secureCRT管理软件。

#———————————–分割线以内的———————————————–
# 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-$releasever – Base
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
baseurl=http://centos.ustc.edu.cn/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/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=file:///etc/pki/rpm-gpg/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=file:///etc/pki/rpm-gpg/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=file:///etc/pki/rpm-gpg/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=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

#contrib – packages by Centos Users
[contrib]
name=CentOS-$releasever – Contrib
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib
baseurl=http://centos.ustc.edu.cn/centos/$releasever/contrib/$basearch/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/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。

按 esc 后输入：然后输入 qw！即可。

yum update 测试~