Just install it through the HAM (Hildon Application Manager) or FAM (Faster Application Manager). Then, you can become "root" with sudo gainroot or just root typed in the terminal. In the future, you can install .deb files throught the terminal by navigating to the folder they are in with cd command and then install them with dpkg -i command. For instance: cd /home/user/MyDocs then you press the enter button..and then you type dpkg -i rootsh.deb Here, we are assuming that the .deb file is located in your MyDocs folder. Ofc, in order to use dpkg -i you have to have superuser privilages first.