Create and execute input commands on your Knoppix operating system that will perform the following tasks:

Create a 4 megabyte empty file under /tmp

Prepare the file as a loopback device.

Make an ext2 filesystem on the loopback device.

Mount the filesystem into a directory under /mnt

Repeat steps 1-4 above to create a 2 megabyte file system within the first.

Unmount both file systems.