CCitizenTO wrote:Alright well I will admit I cheaped out on the SD card the first time around... I got a Class 4 on the assumption that the RPi would not benefit from faster SD cards. Would a move to a Class 10 card result in that much of improvement in performance as well?
Not necessarily. All of the Class 10 cards I've ever owned have had very
poor 4K transfer (ie, small reads/small writes) speeds. RaspBMC benefits from faster performance in this area, so a smaller SD card with a lower class rating can, infact, be significantly faster for running an OS from.
I have never set it up to use a USB drive before... I am guessing that sort of configuration isnt easily doable with NOOBS is it?
NOOBS can complicate matters by generating umpteen Ext4 partitions leaving you unsure as to which one belongs to what. The standalone RaspBMC installer is a better bet if you fancy trying to run it from a USB HDD as it resides inside just the one Ext4 partition.
An easier option for getting Raspbian and XBMC in to one easily manageable partition is to install UltraSlim (see Gaming sub-forum) and then just remove or ignore the parts you don't want. Myself and others can help you with customising UltraSlim if you decide to take that route.
Running the '/root' partition from an HDD also means that the speed and size of the SD card become irrelevant, so I used my smallest card for the '/boot' partition which happened to be an old Sandisk 1GB SD card that wasn't much use for anything else. As long as the Pi can reliably boot from it, nothing else matters.
If you decide to take the USB HDD route, you might find my guide handy. I wrote it primarily for Windows users trying to run a Pi OS from a USB HDD that's already formatted to NTFS and part-full of media, but the same basic rules apply no matter how your hard drive is currently configured. I took the Windows route as my main PC runs Win7, and the guide explains how to avoid using Gparted which I personally find quite unfriendly and daunting to use. Here's the guide...
https://dl.dropboxusercontent.com/u/431 ... %20HDD.pdf