CentOS yum 設定

cd /etc/yum.repos.d/
cp CentOS-Base.repo CentOS-Base.repo.bak
vi 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=$basearch&repo=os
baseurl=http://ftp.cs.pu.edu.tw/Linux/CentOS/$releasever/os/$basearch/
gpgcheck=1
gpgkey=http://ftp.cs.pu.edu.tw/Linux/CentOS/RPM-GPG-KEY-CentOS-5

#released updates 
[updates]
name=CentOS-$releasever - Updates
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
baseurl=http://ftp.cs.pu.edu.tw/Linux/CentOS/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=http://ftp.cs.pu.edu.tw/Linux/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=$basearch&repo=addons
baseurl=http://ftp.cs.pu.edu.tw/Linux/CentOS/$releasever/addons/$basearch/
gpgcheck=1
gpgkey=http://ftp.cs.pu.edu.tw/Linux/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=$basearch&repo=extras
baseurl=http://ftp.cs.pu.edu.tw/Linux/CentOS/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=http://ftp.cs.pu.edu.tw/Linux/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=$basearch&repo=centosplus
baseurl=http://ftp.cs.pu.edu.tw/Linux/CentOS/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://ftp.cs.pu.edu.tw/Linux/CentOS/RPM-GPG-KEY-CentOS-5

Repo Download

yum 指令介紹
 * 更新：yum update
 * 安裝：yum install xxx
 * 移除：yum remove xxx
 * 清除已經安裝過的檔案（/var/cache/yum/）：yum clean all
 * 搜尋：yum search xxx
 * 列出所有檔案：yum list
 * 查詢檔案訊息：yum info xxx