CentOS修改yum更新源

平時在安裝或更新CentOS軟體時，yum方式是最簡單方便的，而系統預設到yum更新源地址不穩定，所以需要對更新源地址進行修改，國內一般用163比較快。

yum更新源組態檔：/etc/yum.repos.d/CentOS-Base.repo

1. 在修改前先備份該檔案

cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak

2. 修改更新源組態檔（CentOS6地址，其他版本類似）

vim開啟組態檔：

vim /etc/yum.repos.d/CentOS-Base.repo

複製以下內容貼上到組態檔中進行：

# 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-$releasever - Base
baseurl=http://mirrors.oschina.com/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

[updates]
name=CentOS-$releasever - Updates
baseurl=http://mirrors.oschina.com/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

[addons]
name=CentOS-$releasever - Addons
baseurl=http://mirrors.oschina.com/centos/$releasever/addons/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

[extras]
name=CentOS-$releasever - Extras
baseurl=http://mirrors.oschina.com/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

[centosplus]
name=CentOS-$releasever - Plus
baseurl=http://mirrors.oschina.com/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

最後儲存組態檔。

3. 更新yum源設定

yum update

（如果不願更新軟體，選擇N即可）

RedHat 6.2 Linux修改yum源免費使用CentOS源 http://www.linuxidc.com/Linux/2013-07/87383.htm

設定EPEL YUM源 http://www.linuxidc.com/Linux/2012-10/71850.htm

Redhat 本地yum源設定 http://www.linuxidc.com/Linux/2012-11/75127.htm

yum的組態檔說明 http://www.linuxidc.com/Linux/2013-04/83298.htm

RedHat 6.1下安裝yum(圖文) http://www.linuxidc.com/Linux/2013-06/86535.htm

YUM 安裝及清理 http://www.linuxidc.com/Linux/2013-07/87163.htm

CentOS 6.4上搭建yum本地源 http://www.linuxidc.com/Linux/2014-07/104533.htm

本文永久更新連結地址：http://www.linuxidc.com/Linux/2015-06/118399.htm