rm -r /root/.local/share
rm -r /root/.config/menus
mkdir -p /etc/my-gnome-menus
echo 'XDG_CONFIG_HOME="/etc/my-gnome-menus"' >> /etc/environment
echo 'XDG_DATA_HOME="/etc/my-gnome-menus/share"' >> /etc/environment
Agora use alacarte
para editar os menus.