Comment 4 for bug 1004328

How to reproduce:
1. Start a VM $VM_ID from an image.
2. Create a volume with $VOL_ID.
3.Try command like: nova volume-attach $VM_ID $VOL_ID /dev/vdc
Or attach a volume to a VM from the horizon UI, set the mountpoint to /dev/vdc

Expected result:
/dev/vdc should be found in the VM. This can be checked after ssh this VM.

Actual result:
/dev/vdb is found in the VM. No /dev/vdc is there.