[완료] lvremove가 먹히질 않네요

[root@storage01 ~]# lvremove -f cluster_vg
/dev/cdrom: open failed: Read-only file system
Attempt to close device '/dev/cdrom' which is not open.
Couldn't find device with uuid 'D9kWc3-0XB0-zkfH-rYyy-Qdwo-3Tq4-bEjq0q'.
Couldn't find all physical volumes for volume group cluster_vg.
Couldn't find device with uuid 'D9kWc3-0XB0-zkfH-rYyy-Qdwo-3Tq4-bEjq0q'.
Couldn't find all physical volumes for volume group cluster_vg.
Couldn't find device with uuid 'D9kWc3-0XB0-zkfH-rYyy-Qdwo-3Tq4-bEjq0q'.
Couldn't find all physical volumes for volume group cluster_vg.
Couldn't find device with uuid 'D9kWc3-0XB0-zkfH-rYyy-Qdwo-3Tq4-bEjq0q'.
Couldn't find all physical volumes for volume group cluster_vg.
Volume group "cluster_vg" not found
[root@storage01 ~]#