连接光盘,挂在光盘

# mount /dev/cdrom /media/

编辑 /etc/yum.repos.d/iso.repo

[ISO]
name=ISO
baseurl=file:///media
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6

[EPEL]
name=EPEL
baseurl=http://mirrors.aliyun.com/epel/6/x86_64/
enabled=1
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/epel/RPM-GPG-KEY-EPEL-6

repolist

# yum repolist
Loaded plugins: fastestmirror, security
Loading mirror speeds from cached hostfile
 * base: mirrors.163.com
 * extras: mirrors.163.com
 * updates: mirrors.btte.net
EPEL                                                                                 | 4.4 kB     00:00
ISO                                                                                  | 4.0 kB     00:00 ...
repo id                                      repo name                                                status
EPEL                                         EPEL                                                     11,753
ISO                                          ISO                                                       6,518
base                                         CentOS-6 - Base                                           6,575
extras                                       CentOS-6 - Extras                                            34
updates                                      CentOS-6 - Updates                                          219
repolist: 25,099

Done!