Setup Raspberry Pi from scratch
From James's Wiki
sudo apt-get install tree
To find the SD Card for you Raspberry Pi, Insert it into your computer and type:
lsblk
Assuming that you only have one similarly sized device inserted at this time it should be fairly easy to figure out which device you want based on size. If your using a Linux distro like Ubuntu, it will automaticly mount your SD Card, and you don't want that so umount it with:
sudo umount /dev/<device number>
Repeat this command adjusting the device number until all partitions are unmounted.
Next, we need to repartition the SD card with fdisk.
sudo fdisk /dev/<device number>
Delete all partitions using 'd'
Create a new partition using 'c'
