vmware上redhat 5.4光驱挂载

[root@cluster1 ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5.4 (Tikanga) 32 bit
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[root@cluster1 ~]# mount -t iso9660 /dev/cdrom /media/rhel
mount: block device /dev/cdrom is write-protected, mounting read-only
[root@cluster1 ~]# df -h
文件系统              容量  已用 可用 已用% 挂载点
/dev/sda2              78G  3.6G   70G   5% /
/dev/sda1             190M   13M  168M   8% /boot
tmpfs                 212M     0  212M   0% /dev/shm:q!
:q!
none                  212M  104K  212M   1% /var/lib/xenstored
/dev/hdc              2.8G  2.8G     0 100% /media/RHEL_5.4 i386 DVD
/dev/hdc              2.8G  2.8G     0 100% /media/rhel