I noticed a lot of people were having problems compiling GNU Radio on the Raspberry Pi, so I’ve done this for you. Simply download the image, unzip it, write it to an SD card (you’ll need an 8GB card), and everything just works. I haven’t tried a 4GB card, it might work, but keep in mind you need a LOT of swap space for GNU Radio to do most things.
I’m using Wheezy with a 1.6GB swap file (yes). GNU Radio has been compiled (the whole suite including gnuradio companion), along with the rtl_sdr suite including rtl_fm, rtl_power, rtl_tcp etc.
Note: this only works on the model B raspberry pi, not model A.
Boot up with this image, and either plug in a keyboard, or SSH in (IP is set by DHCP).
Download the gareth_wheezygr.img torrent using this magnet link. Please make a note to continue seeding after download. If you can’t get the torrent to work, you can use this direct link, please do try the torrent first though.
MD5 (gareth_wheezygr.img.gz) = c8714d82658613cc26c98dfbfd96fc0d
UPDATE: I’ll be releasing a new version of this next week which will work on more SD cards, include the rtl-sdr suite as well as some other goodies like a tool to precisely calibrate your dongle by using the GSM network. Please check back, or follow (don’t friend) me on facebook to be notified of the update.