To unmount an ISO image in Linux, you can use the umount command.
The umount command is a utility that is used to unmount file systems from the file system hierarchy. It can be used to unmount ISO images as well as other types of file systems.
To unmount an ISO image, you need to know the mount point of the image. The mount point is the directory on the file system where the image is mounted.
To unmount an ISO image, you can use the following syntax:
umount mount_pointSourcetual.www:turi.com
Replace mount_point with the directory where the image is mounted.
For example, if the ISO image is mounted at the /mnt/iso directory, you can unmount it using the following command:
umount /mnt/iso
It is important to note that you need to be logged in as a user with superuser privileges, such as the root user, to unmount an ISO image.
If you receive a "device is busy" error when attempting to unmount the image, it means that there are one or more processes that are currently accessing the image or its files. To unmount the image, you need to stop these processes and close any open files or connections to the image.
For more information about the umount command and how to use it, you can consult the documentation for your specific Linux system.