root@xbian:/home/xbian# sudo apt-get update
Hit http://archive.raspberrypi.org wheezy InRelease
Get:1 http://apt.xbian.org wheezy InRelease [1456 B]
Get:2 http://mirrordirector.raspbian.org wheezy InRelease [12.5 kB]
Hit http://archive.raspberrypi.org wheezy/main armhf Packages
Ign http://apt.xbian.org wheezy InRelease
Get:3 http://mirrordirector.raspbian.org wheezy/main armhf Packages [7402 kB]
Ign http://archive.raspberrypi.org wheezy/main Translation-en
Get:4 http://apt.xbian.org wheezy/main armhf Packages [3087 B]
Ign http://apt.xbian.org wheezy/main Translation-en
Get:5 http://mirrordirector.raspbian.org wheezy/contrib armhf Packages [23.3 kB]
Get:6 http://mirrordirector.raspbian.org wheezy/non-free armhf Packages [47.8 kB                                                                             ]
Get:7 http://mirrordirector.raspbian.org wheezy/rpi armhf Packages [14 B]
Ign http://mirrordirector.raspbian.org wheezy/contrib Translation-en
Ign http://mirrordirector.raspbian.org wheezy/main Translation-en
Ign http://mirrordirector.raspbian.org wheezy/non-free Translation-en
Ign http://mirrordirector.raspbian.org wheezy/rpi Translation-en
Fetched 7490 kB in 51s (144 kB/s)
Reading package lists... Done
W: GPG error: http://apt.xbian.org wheezy InRelease: The following signatures co                                                                             uldn't be verified because the public key is not available: NO_PUBKEY 5D3294C252                                                                             9968ED