Unmount a disk member of a set
- In the Disk Utility app on your Mac, select the disk set that you want to unmount in the sidebar.
- Click the Unmount button in the toolbar or beside the disk set name.
- Disconnect the disk member that you want to unmount.
How do I force my Mac to unmount a disk?
For that using the terminal application again, enter the following command: sudo diskutil unmount force /dev/(enter here disk identifier name) Then press return and enter the admin password if prompted. This will definetely unmount the entire disk and all its related volume.
What does unmount disk mean?
(1) To disconnect a disk drive or optical disc from a computer. When a user selects "eject" to evacuate an optical disc from the computer, the operating system unmounts the medium. ... (2) To remove a disk or tape cartridge from the drive.
