On Sunday 26 February 2017 22.17:36 Curt Howland wrote: > This happened to me as well, on drives where I had written a DVD .iso > image. The DVD image would still mount, even though there was nothing > there, after I repartitioned and reformatted. > > I used "wipefs" on the device to clean out the old file system tags. > All of them. Then repartition, reformat, and only the active partition > showed up. > > Maybe some experimentation would allow for a "wipefs" command that > only wiped the "macUSBdrive" tags, but I didn't spend that much time > on it. > > Curt- Thanks, that's a trail I can follow. I have afew older sticks I could use for testing- I'll report if I find something. Thierry