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RPi SD cards

RPi SD cards
SD cards The SD card is a key part of the Raspberry Pi; it provides the initial storage for the Operating System and files. Storage can be extended through many types of USB connected peripherals. When the Raspberry Pi is 'switched on', i.e. connected to a power supply, a special piece of code called the bootloader is executed, which reads more special code from the SD card that is used to start up the Raspberry Pi. The SD card must be formatted, or written to, in a special way that means the Raspberry Pi can read the data it needs to start properly. One advantage to using an SD card like this is that you can have several SD cards, each with a different operating system, or a different purpose. Please bear in mind that the maximum throughput of the card reader of the Raspberry Pi is 25 MB/s and that most likely read and write speed won't exceed 22 MB/s. Which SD card? SD cards come in three physical sizes (see picture). SD cards come in a range of storage sizes. Other SD card content Related:  Raspberry Pi - TrucsHardware

How to Clone Raspberry Pi SD Cards Using the Command Line in OS X - Tuts+ Mac Computer Skills Article The Raspberry Pi runs from an operating system stored on a Secure Digital (SD) card and many different operating systems may be employed. Storage is relatively inexpensive, can be created (flashed), recreated, written to and overwritten with ease. On the one hand, this is an advantage of the Pi. The Raspberry Pi is somewhat different to the computing, to which most of us have been accustomed, of the last two decades. With almost two and a half million units sold–in little over a year since its launch–and with its focus on getting kids (adults?) Being able to experiment, play and break things is all part of the fun. Before embarking on cloning your SD card, install NOOBS or the OS of your choice, customise it and get it set up exactly how you like to use it. Cloning is the process of making an exact copy. The benefit of having a disk image of your SD card is that you have a backup of your data from which you can easily write a new SD card In my example, my SD Card is /dev/disk2.

VMWare View Client 4.6 on Raspberry Pi! Waiting for the new Debian Image that will come soon, we can install VMWare View Client 4.6 !!! Seem to be the harder part but... it's the simplest! VMWare View Client isn't released yet for Linux ARM (just for Ubuntu, but imho Ubuntu! Let's install VMWare View Client 4.6: apt-get install libcurl3 thendpkg -i vmware-view-client_4.6_armel.deb Then run the client! Et voilà :-) PS. pm me for the .deb!

Web server setup My operating system, Debian Linux comes with lots of great programs, all of which are free to install and use. One of the things I am really good at is hosting webpages, but before I can do this I needed to install some web server software.There are many different web server programs available but I decided to use the most common one, it's called Apache and it powers millions of web sites all over the world. So, this is how I set myself up to be a web server. First I needed to install the Apache software, this is the easy bit, I just ran the following command from my command prompt: sudo apt-get install apache2 This command downloads the Apache software from the internet and installs it for me. Next I needed to setup an area to hold my web pages, the default is /var/www however this is on my root partition which isn't very big so I created a new partition using the spare space on my SD card and mounted it under /data. sudo mount /data brings it online and makes it ready to use. Simples!

Bien choisir les accessoires de votre Raspberry Pi 2 La Raspberry Pi 2 est sortie et elle est absolument géniale. Plus rapide, plus puissante, toujours aussi abordable, et supportant désormais Windows 10. Lors de la sortie de la Raspberry Pi 2 nous vous avions dit que nous sortirions un guide pour vous aider à choisir les accessoires de votre Raspberry Pi 2, le voici. Nous allons découper ce tutoriel en trois parties, les accessoires obligatoires, ceux utiles, et ceux qui vous serviront dans des cas un peu spécifiques. Les accessoires présentés dans cet article sont également utilisables pour la Raspberry Pi B+. Les accessoires obligatoires La Raspberry Pi est livrée nue, sans clavier, sans alimentation, bref toute seule. Sans les accessoires que nous vous présentons ici, vous ne pourrez pas démarrer la Raspberry Pi. La Raspberry Pi 2 C’est évident, mais nous le marquons tout de même, il vous faudra une Raspberry Pi 2. La Raspberry Pi 2 propose donc 1Go de mémoire vive, contre 512Mo pour le modèle B+. Voici un petit tableau récapitulatif !

Home Automation with AngularJS and node.js on a Raspberry Pi In this blog post I show how you can quickly setup and implement a control software for your switches at home with some modern JavaScript stuff. This project should primarily help me to get more in touch with these kinds of freaky scripting and this is maybe helpful for other Java Developers or people who want to play around with the Raspberry Pi. So I decided to share it with you. Prerequisites You need the following Hardware to do it: When you just want to play around with AngularJS and you have no Raspberry Pi, then you can skip the first steps and just use the mock implementation of the REST server at Install the Raspberry Pi Hardware Before we can start hacking we need to connect the 433 MHz Sender to the GPIO pins of the Raspberry Pi like in the following picture: PIN 1 GND -> PIN 6 (GND) PIN 2 Data in -> PIN 11 (GPIO17) PIN 3 Vcc -> PIN 2 (5V) PIN 4 -> Antenna Install the Raspberry Pi Software Install wiringPi Install rcswitch-pi Cool. Install node.js Get and extract it: Test it:

Raspbian on SD card + USB memory stick Raspbian is a Debian based Linux distribution, specifically for use with the Raspberry Pi. The Raspberry Pi requires that the system is initially booted of SD. Because of this, a default install of Raspbian requires an SD card of at least 2gb. I received my Raspberry Pi the other day, and didn’t have a spare 2gb SD card that wasn’t already being used, but I had a few smaller ones around the place (128mb, 256mb, etc). It turns out that the Raspbian image contains a boot partition, and as long as you can copy this to a SD card (and modify the cmdline.txt file to point to the root partition on the USB memory stick), you will be able to initially boot of a small SD card, then load the rest of the system off a larger USB memory stick. Requirements: A linux PC (Only required for this guide. Determining device names: Find the device names for both your USB device, and your SD device. Eg: This shows the dmesg output after plugging in a USB memory stick. Obtaining Raspbian: Preparing the SD card: eg:

Utiliser un Raspberry Pi en terminal TSE, CITRIX et VMWare View avec RPTC Dans cet article nous allons nous intéresser a une nouvelle utilisation du Raspberry Pi qui cette fois ci peut intéresser le monde professionnel. Pourquoi ne pas utiliser un Raspberry en terminal TSE, CITRIX et VMWare View? Est ce possible? est ce rentable, est ce fiable? Cet article est la pour répondre à ces questions et donner la marche à suivre pour installer et configurer votre Raspberry afin de le métamorphoser en un teminal TSE, Citrix et VMWare View professionnel, fiable peu coûteux et performant. Comparatif des Coûts Terminal Vs Raspberry Pi Le coût d'un terminal TSE/Citrix... se situe entre 250 et 800€... Le coût d'un Raspberry Pi tout inclus, c'est : - Le raspberry modele B avec carte SD de 8Go à 41,10€ chez RS components - Une alim Micro USB à 7,30€ - Un cable HDMI à 5,09€ - et un joli boitier (ca fait moins geek et plus "corporate") à 5,99€ Quelques jours après la commande, on reçoit le matériel (mode déballage geek activé!) Enjoy!

Raspberry Pi - Dynamic DNS on Raspbian Greetings all, So as I’ve been setting up my Pi as a home server I thought it might be nice to be able to access it from the outside world. Unfortunately I only have a dynamically assigned IP address from my ISP so it’s therefore subject to change from time to time. Dynamic DNS will allow me to have a static (non-changing) domain name that will resolve to my occasionally changing home IP address. This works by having a script or daemon in our case running on the internal machine that talks to the DNS server updating the IP resolution address. In this article I won’t cover any services that can be accessed from the outside such as an HTTP daemon or SSH but I will hopefully discuss these in later posts. I’ll assume that to test all this you have an HTTP client such as Apache2 running on the Pi and can get it’s stock standard “It Works” page from hitting the Pi’s internal IP from another computer in the internal network. To get dynamic resolution from outside you’ll need: Now the fun part!

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