$ sudo apt-get update
$ sudo apt-get install packagekit-backend-smart 

packagekit-backend-smart is installed in your system.

Make ensure the packagekit-backend-smart package were installed using the commands given below,

$ sudo dpkg-query -l | grep packagekit-backend-smart *

You will get with packagekit-backend-smart package name, version, architecture and description in a table

packagekit-backend-smart package basic information: