gnome-shell is installed. <code>cal@leela:~$ apt search gnome-shell ... gnome-shell/belenos-updates,now 3.10.4-0ubuntu5.2 amd64 [installed,automatic] graphical shell for the GNOME desktop</code>
gnome-session is installed. <code>cal@leela:~$ apt search gnome-session Sorting... Done Full Text Search... Done gnome-session/belenos-updates,now 3.9.90-0ubuntu12.1+7.0trisquel2 all [installed,automatic] GNOME Session Manager - GNOME 3 session</code>
