1.创建/mnt/cdrom/目录
#mkdir /mnt/cdrom/
2.切换到/mnt/cdrom/
# cd /mnt/cdrom/
3.查看列表使用ls
[root@localhost cdrom]# ls
EFI EULA_fr EULA_zh LoadBalancer repodata Server
EULA EULA_it GPL media.repo ResilientStorage TRANS.TBL
EULA_de EULA_ja HighAvailability Packages RPM-GPG-KEY-redhat-beta
EULA_en EULA_ko images README RPM-GPG-KEY-redhat-release
EULA_es EULA_pt isolinux release-notes ScalableFileSystem
4.找到Packages这个目录,并切换到这个目录