If you want to add extra Linux packages to a Masterkey Linux USB device, say LinEn (the EnCase Imaging Tool),

1. Copy the program to the folder \masterkey\rootcopy as shown below:

2. Boot from the Masterkey USB device as you normally do;

3. Launch a shell prompt (command line prompt), change to the root directory(#cd /) and run the package (#./linen) as shown below:

4. The package should work...