Ensure Curl is installed on your machine.

Open the Virtual Manager on your Linux distribution to download Retrospect Virtual Host Server application.

Save the requested file for your distribution on the computer.

Verify your Java version and install it if needed (Minimum OpenJDK 1.8 or Java SE 1.8).

Go to the directory you downloaded the VHS and change mode to execute if you selected the .sh.

Execute the VHS .sh file to unpack and install.

When done you should have .desktop file and Retrospect VHS in the app list.

Launch VHS and log your user, don’t forget to setup the manager in "Advanced Options".

Find the possible backup types you can do from Linux environment.