Can't kill a umount

[Tom Horsley]

On Sun, 6 Sep 2015 09:55:44 -0400
Robert Moskowitz wrote:

> I was copying some files to a newly set up USB HD, and then did some 
> umounts when done.  Well they are still running, and

That's probably because the data is just in memory and hasn't
been flushed to the actual USB device yet. If you do manage
to kill the umount, you'll probably have corrupted data on
the USB drive.