- If a drive is formatted APFS it will have a seperate disk
devices for physical drive (e.g. /dev/disk2) and volumes
(e.g. /dev/disk3).
Need to unmount all, or opening the device for
writing will subsequently fail.
(User will see an "Error running authopen" error in Imager
in that case).
- Also do not show APFS volumes seperately in the disk
selection dialog. List mount points under physical drive
instead.
Closes#501
Floris Bos
30225187bd