Fix export path

circle/vm/operations.py

@@ -389,7 +389,7 @@ class ExportDiskOperation(InstanceOperation):
 
     def _operation(self, user, disk, exported_name, disk_format, task):
         store = Store(user)
-        upload_link, port = store.request_ssh_upload()
+        upload_link, port = store.request_ssh_upload('/')
         file_name = disk.export(disk_format, upload_link, port, task)
         store.ssh_upload_finished(file_name, exported_name + '.' + disk_format)