You cannot mount a USB flash drive in ubuntu.

Ubuntu cannot mount a USB flash drive. In general, Ubuntu mounts a mobile hard drive to a folder in the media directory under the root directory. The folder name is generally your user name, one reason why the folder cannot be mounted is that the folder does not exist, and the other is that you have no permission for the folder. The error message is: Adding read ACL for uid 1000 to '/media/yelbosh' failed: Operation not supported, then change the permissions of this folder to yours. The following command can solve the problem: sudo mkdir-p/media/USER_NAME (this is your username) sudo chown USER_NAME: USER_NAME/media/USER_NAME