gsmartcontrol software package provides graphical user interface for smartctl, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install gsmartcontrol
gsmartcontrol is installed in your system.
Make ensure the gsmartcontrol package were installed using the commands given below,
$ sudo dpkg-query -l | grep gsmartcontrol *
You will get with gsmartcontrol package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Utilities |
| Package | gsmartcontrol |
| Version | 0.8.7-1.1 |
| Description | graphical user interface for smartctl |
| Sub Section | utils |