[root@lei1 mnt]# mkdir /mnt/iso [root@lei1 mnt]# mkdir /mnt/cdrom [root@lei1 ~]# mv rhel-server-5.8-x86_64-dvd.iso /mnt/iso [root@lei1 ~]# cd /mnt/iso [root@lei1 iso]# ll total 4032884 -rw-r--r-- 1 root root 4125638656 May 28 18:51 rhel-server-5.8-x86_64-dvd.iso [root@lei1 iso]# mount -o loop /mnt/iso/rhel-server-5.8-x86_64-dvd.iso /mnt/cdrom [root@lei1 iso]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup00-LogVol00 872G 12G 815G 2% / /dev/sda1 190M 13M 168M 7% /boot tmpfs 2.0G 0 2.0G 0% /dev/shm /mnt/iso/rhel-server-5.8-x86_64-dvd.iso 3.9G 3.9G 0 100% /mnt/cdrom [root@lei1 iso]# [root@lei1 yum.repos.d]# cat /etc/yum.repos.d/rhel-debuginfo.repo [rhel-debuginfo] name=Red Hat Enterprise Linux $releasever - $basearch - Debug baseurl=file:///mnt/cdrom/Server ---->修改此處為合適的路徑 enabled=1 ---->修改此處為1 gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release [root@lei1 yum.repos.d]#