Like many people, I have a Chromebook. I use this machine whenever I can’t be bothered to unload my laptop, and for when I’m down in The Den (my large maker shed at the bottom of the garden, like fairies, only made of wood and bigger…). I’ve just come across this tutorial from Josh Haughton in which he uses a Chromebook in developer mode to access the dd utility and write an SD card image for the Raspberry Pi. Take a look here.