如果你安装了CentOS系统，并且yum更新慢的话，可以考虑将更新源更换为 网易提供的源：mirrors.163.com
具体操作如下：
cd /etc/yum.repos.d/
mv CentOS-Base.repo CentOS-Base.repo.bak
vi CentOS-Base.repo
加入如下内容：
CentOS-Base.repo
- # 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=$basearch&repo=os
- #baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
- baseurl=http://mirrors.163.com/centos/$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://mirror.centos.org/centos/$releasever/updates/$basearch/
- baseurl=http://mirrors.163.com/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=$basearch&repo=addons
- #baseurl=http://mirror.centos.org/centos/$releasever/addons/$basearch/
- baseurl=http://mirrors.163.com/centos/$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://mirror.centos.org/centos/$releasever/extras/$basearch/
- baseurl=http://mirrors.163.com/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=$basearch&repo=centosplus
- #baseurl=http://mirror.centos.org/centos/$releasever/centosplus/$basearch/
- baseurl=http://mirrors.163.com/centos/$releasever/centosplus/$basearch/
- gpgcheck=1
- enabled=0
- gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5
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转载自 <a href="http://www.yanghengfei.com/archives/227/" title="CentOS yum 更新 网易源(mirrors.163.com)" rel="bookmark">CentOS yum 更新 网易源(mirrors.163.com) | 星外飞客 </a>
我简单说几句