What do mean by mounting a disk partition?

Mounting a disk partition refers to the process of making the contents of that partition accessible to the operating system and users. This involves associating the partition with a specific directory in the file system hierarchy, allowing files and directories on the partition to be accessed like any other files on the system. When a partition is mounted, it can be read from and written to, while unmounting a partition safely disconnects it from the file system, preventing data loss.