Sorry, i am not exactly a noob, but then again I'm not exactly on expert on all things RasPi.
I have the Raspian image. But I have also placed the debian6 (squeeze) image from April on an a spare SD card and plan to run that tomorrow when I have some time. Will someone please confirm these commands will work to update debian6 image to latest packages. ( also, will it update to the Debian 6.0.5 packages? { i.e. bug fixes and security updates } )
rpi-update ---> update kernel and R-Pi specifics
sudo apt-get update -----> update for apt repositories
sudo apt-get upgrade -----> update for Debian packages.
did i forget anything?