unmount
The mount command stops the file system from running. Unmounting the file system is required to resize user partitions or replace a storage device.
Syntax
unmount <data-disk | system-disk | hard-disk>
Arguments
data-disk— Mount the 1 or more data partitions containing the default (/mnt/sys and /mnt/app) or user-defined volumes
system-disk—Mount 2 system partitions: /opt and /opt/crash
hard-disk—Mounts both the system partition and data partition
Mode
Superuser