Ab und zu sollte man seinem Raspberry Pi aktualisieren. Das sind nicht viele Befehle, nur zwei, aber es braucht etwas Zeit.
a) Update
pi@raspbox / $ sudo apt-get update
Get:1 http://mirrordirector.raspbian.org wheezy Release.gpg [490 B]
Get:2 http://raspberrypi.collabora.com wheezy Release.gpg [836 B]
Get:3 http://mirrordirector.raspbian.org wheezy Release [14.4 kB]
Get:4 http://archive.raspberrypi.org wheezy Release.gpg [490 B]
Get:5 http://raspberrypi.collabora.com wheezy Release [7,502 B]
Hit http://repository.wolfram.com stable Release.gpg
Get:6 http://archive.raspberrypi.org wheezy Release [10.2 kB]
Get:7 http://mirrordirector.raspbian.org wheezy/main armhf Packages...
Hit http://repository.wolfram.com stable Release
Get:8 http://raspberrypi.collabora.com wheezy/rpi armhf Packages [2,214 B]
Get:9 http://archive.raspberrypi.org wheezy/main armhf Packages [99.4 kB]
Hit http://repository.wolfram.com stable/non-free armhf Packages
Ign http://raspberrypi.collabora.com wheezy/rpi Translation-en_GB
Ign http://raspberrypi.collabora.com wheezy/rpi Translation-en
Ign http://repository.wolfram.com stable/non-free Translation-en_GB
Ign http://repository.wolfram.com stable/non-free Translation-en
Ign http://archive.raspberrypi.org wheezy/main Translation-en_GB
Ign http://archive.raspberrypi.org wheezy/main Translation-en
Get:10 http://mirrordirector.raspbian.org wheezy/contrib armhf Pack...
Get:11 http://mirrordirector.raspbian.org wheezy/non-free armhf Pack...
Get:12 http://mirrordirector.raspbian.org wheezy/rpi armhf Packages [592 B]
Ign http://mirrordirector.raspbian.org wheezy/contrib Translation-en_GB
...
Ign http://mirrordirector.raspbian.org wheezy/rpi Translation-en
Fetched 7,102 kB in 36s (194 kB/s)
Reading package lists... Done
pi@raspbox / $
b) Upgrade
pi@raspbox / $ sudo apt-get upgrade -y >/tmp/apt_get_upgrade.log
Extracting templates from packages: 100%
pi@raspbox / $
c) Aufräumen
pi@raspberrypi ~ $ sudo apt-get autoremove -y >/tmp/apt_get_autoremove
pi@raspberrypi ~ $ cat /tmp/apt_get_autoremove
Reading package lists...
Building dependency tree...
Reading state information...
0 upgraded, 0 newly installed, 0 to remove and 14 not upgraded.
d) Reboot!
pi@raspberrypi ~ $ sudo reboot