1.把光盘里的所有文件拷贝到/yum下
2.编辑 /etc/yum.repos.d/rhel-debuginfo.repo
[base]
name=Instructor Server Repository
baseurl=file:///yum/Server
gpgcheck=1
# This one is needed for xen packages
[VT]
name=Instructor VT Repository
baseurl=file:///yum/VT
gpgcheck=1
# This one is needed for clustering packages
[Cluster]
name=Instructor Cluster Repository
baseurl=file:///yum/Cluster
gpgcheck=1
# This one is needed for cluster storage （GFS, iSCSI target, etc…） packages
[ClusterStorage]
name=Instructor ClusterStorage Repository
baseurl=file:///yum/ClusterStorage
gpgcheck=1
3. rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release