yum本地源及网络源配置

 yum 本地源的配置
[root@jesse ~]# cd /etc/yum.repos.d/
[root@jesse yum.repos.d]# ls
CentOS-Base.repo  CentOS-Media.repo
[root@jesse yum.repos.d]# mv CentOS-Base.repo CentOS-Base.repo.BAK
[root@jesse yum.repos.d]# ls
CentOS-Base.repo.BAK  CentOS-Media.repo
[root@jesse yum.repos.d]# vi CentOS-Media.repo   
#本地yum源修改成以下配置文件即可
# CentOS-Media.repo
#
# This repo is used to mount the default locations for a CDROM / DVD on
#  CentOS-5.  You can use this repo and yum to install items directly off the
#  DVD ISO that we release.
#
# To use this repo, put in your DVD and use it with the other repos too:
#  yum --enablerepo=c5-media [command]
#
# or for ONLY the media repo, do this:
#
#  yum --disablerepo=\* --enablerepo=c5-media [command]

[c5-media]
name=CentOS-$releasever - Media
baseurl=file:///mnt/
gpgcheck=0
enabled=1

#wq 保存并退出

网络源的配置（获取163镜像站点）

cd /etc/yum.repos.d/

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

wget http://blog.s135.com/soft/linux/centos/5.2/CentOS-Base.repo