BOXI 3.1 SP7: Modify an installation (Linux)

Hi:

We have a BOXI 3.1 SP7 on a linux machine.

Do you know what's the way to modify an installation?

What is the script we should use?

We tried with install.sh, but this script just run another installation.

We want to change our previous installation to add all the drivers provided by the installation package.

Best regards.