or run `apt-get install libraspberrypi-bin libraspberrypi-dev
libraspberrypi-doc libraspberrypi0 lxpanel lxpanel-data nuscratch
pypy-upstream raspberrypi-bootloader raspberrypi-ui-mods`
Normally it will not upgrade a package if it has to install an extra
package. Or at least that's what I saw on mine...