RPi Easy SD Card Setup - eLinux.org

Adding more software to your Raspberry
Pi
You will probably want to add software to your Raspberry Pi. Here you can find out how
to do it. Adding Software (http://elinux.org/Add_software)
Adding USB Storage to Your Raspberry
Pi
Sooner or later, you're going to run out of room on the SD card used to boot up your
Raspberry Pi. For a tutorial on how to connect USB flash drives and hard drives to your
Pi to expand storage, see: Adding USB Drives to a Raspberry Pi (http://elinux.org/
RPi_Adding_USB_Drives)
Beginner Projects
Here are a few things you can try out with your Raspberry Pi, in most cases all you'll
need is your SD Card loaded with a particular preconfigured OS Distribution.
It will be worth getting a few spare SD Cards if you think you will switch between setups
regularly or become familiar with how to back up and restore your card.
Reference needed - a good guide on how to backup and restore cards or software to do this easily
Backup your SD card
For Windows users the 'Raw HDD Copy Tool' from HDD Guru works well to backup and
restore your SD card between proejcts. This can backup and restore the entire card sector
by sector to/from an img file, and doesn't care which file system is on the card.
http://hddguru.com/software/HDD-Raw-Copy-Tool/
Linux users can use the dd tool that comes with most versions of Linux (including
Raspbian) to save the contents of an SD card as an image file. Warning: be sure to use
this tool carefully as accidentally choosing your hard drive as the output may destroy all
data on it.