本地yum

挂载光盘：

mount /dev/cdrom /media/cdrom/

配置本地YUM：

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

===================================================================================

# 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:///media/cdrom/

gpgcheck=1

enabled=1

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

===================================================================================

测试：

yum clean all                清除缓存及旧的包

yum install -y rsync     测试是否能安装软件