background preloader

BerryBoot v2.0 - bootloader / universal operating system installer

BerryBoot v2.0 - bootloader / universal operating system installer
For people short on SD cards: Berryboot is a simple boot selection screen for ARM computers like the Raspberry Pi, that allows you to put multiple Linux distributions on a single SD card. In addition it allows you to put the operating system files on an external USB hard drive instead of on the SD card itself. Download link Berryboot for the original Raspberry Pi and Pi Zero: berryboot-20160209-pi0-pi1.zip sha1sum: f8cfc1b4f57e0b6886569091ca7e277d33ffee0f Download link Berryboot for the quad-core Raspberry Pi 2 and Pi 3: berryboot-20160930-pi2-pi3.zip sha1sum: 7f44898dcca58cd4c1562273a44121c90e3543ab To install: extract the contents of the .zip file to a normal (FAT formatted) SD card, and put it in your Raspberry Pi. If your Pi is connected to the Internet BerryBoot will try to detect your location based on your IP-address, and set the right timezone automatically. on the SD card itself on an external USB stick/disk. WARNING: all existing files on the disk will be erased. HDMI CEC support

RPi 5V PSU construction Back to the Hub Hardware & Peripherals: Hardware - detailed information about the Raspberry Pi boards. Hardware History - guide to the Raspberry Pi models. Low-level Peripherals - using the GPIO and other connectors. Expansion Boards - GPIO plug-in boards providing additional functionality. Screens - attaching a screen to the Raspberry Pi. Cases - lots of nice cases to protect the Raspberry Pi. Other Peripherals - all sorts of peripherals used with the Raspberry Pi. A 5V power supply for the Raspberry Pi - Construction How To Due to various problems with the power supply for the RaspberryPi, a home made PSU might be a solution for some of you. I have had problems with a cheap 5V/1A adapter from Ebay too (freezing, no LAN, etc.) ... So instead of looking for another PSU (or cell phone charger), I decided to make my own PSU with the popular 7805 - 5V/1A regulator [3] [4]. The basic idea is shown on this schematic: The resistors R1 and R2 serve as adjustment of the output voltage (~ 5.25V). Steps:

Installing OpenELEC on Raspberry Pi This is for users with a Linux computer. Installing OpenELEC for Raspberry Pi from a Linux computer is a very simple process and whether you're new to Linux or a hardened *NIX user, you shouldn't have any problems. A computer (your normal PC) A Raspberry Pi Media to install to (SD card) Safely remove your SD card and place it in your Raspberry Pi Connect the RPi to your display, plug in the ethernet cable and power it on. Once booted you can ssh to the device with; username: root password: openelec Note that if you do not have a USB input device you can enable XBMC Wifi remote access (via Android/iOS etc) by editing the XBMC config files directly, turn on the XBMC webserver and set a username/password in ~/.xbmc/userdata/guisettings.xml

archlinux:mpd_goflex_home [Notes] archlinux:mpd_goflex_home LMS (Logitech Media Server) : Il est plus complet que MPD (fichiers audio, une base préconfigurée de webradios, podcasts, Spotify, Qobuz). Ses interfaces utilisateurs sont plus ergonomiques que celles des clients mpd. Par contre, il consomme plus de RAM. Une image sur les ressources utilisées pendant la lecture d'un fichier flac 24 bits / 192 kHz. MPD : Il est facile à installer et très bien pour lire les fichiers audio. Installer un lecteur de musique Squeezelite La config d'alsa : /etc/asound.confpcm.! Pour utiliser l'option -p (Set real time priority of output thread (1-99), valeur par défaut est 45 pour un des quatre threads) de squeezelite (voir CPU Scheduling), il faut le lancer par root (la méthode décrite dans ne marche pas). SqueezeSlave (obsolète pour mon usage) SqueezePlay (obsolète pour mon usage) Installer les deux packages xorg-server-xvfb et xorg-xauth. Spotify Il faut avoir un abonnement Spotify Premium. Qobuz

comment demarer Correr Raspberry Pi desde un disco USB Estuve probando unos días mi Rasberry Pi con una mermoria SD clase 4 marca Kingston que me compré, pero que la misma decidió morir (desde el primer día que quemé la imagen de Raspberry ya se había puesto algo problemática). Como no tenía otra SD de 2GB o más, decidí investigar un poco para ver si se podía usar la primera partición /boot como arranque y una partición de un disco duro externo USB de 320 GB que tengo. Efectivamente se puede hacer y describo aquí los pasos. Decidí usar la imagen Raspbian 2013-02-09-wheezy-raspbian.img, pero primero tuve que hacer un truco: volqué la imagen en un pendrive de 8GB para poder separar la partición /boot y el resto del sistema operativo. Volcado de Raspbian al pen drive Hacemos como si volcaramos la imagen de Raspbian en la tarjeta SD pero en vez de hacerlo sobre /dev/mmcblk0 lo hacemos sobre el pendrive: # dd bs=4M if=/home/lgallard/Projects/RaspberryPi/2013-02-09-wheezy-raspbian.img of=/dev/sdb Extracción de la imagen boot Comentarios finales

Minimal webserver distribution (Lighty + PHP + SQLite) Max wrote:MySQL is not supported, as I do not expect it to run properly on a Pi.When MySQL executes queries containing joins it tends to generate temporary tables, which either requires a lot of memory (not available on the Pi) or it will resort to using temporary files (which you don't want when using a SD card as storage).Use SQLite instead. Now come on! MYSQL works fine on the pi. Its not good form to spread this 'pi is wheezy and can't handle anything' myth chap. Like apache2; if you actually take the time to configure it and set sensible operating resource limits there is absolutely no issue on the pi. I know of at least one high traffic high availability site running on pis: ... pberry-pi/ The 'lighttpd and sqlite' brigade is nonsense when you're only fencing 10-50 visitors at any one time.

Raspberry Pi : jusqu'à 50 % de performances en plus via l'overclocking La fondation en charge du projet Raspberry Pi vient d'indiquer qu'un mode turbo venait d'apparaitre au sein de la dernière version de son système d'exploitation. Il offre un gain de performances de l'ordre de 50 %, ce qui n'est pas un luxe pour cette machine miniature qui est équipé d'un SoC Broadcom à 700 MHz seulement. Pour ce faire, l'équipe en charge du développement de Raspbian, le système d'exploitation dédié, a ajouté une fonctionnalité au sein de la dernière version 2012-09-18-wheezy. Celle-ci permet d'augmenter la fréquence du processeur ainsi que sa tension au passage. Il suffit alors d'éditer le fichier de configuration (raspi-config) et d'essayer les différents réglages proposés. Sachez que cet overclocking n'affecte pas la garantie, mais il faudra cependant contrôler certains détails avant de pouvoir profiter de ce changement : l'alimentation doit être suffisante et le boîtier suffisamment volumineux pour encaisser la hausse de température du SoC. Damien Labourot

principe de base for Raspberry Pi Preparing the Raspberry Pi Board BarracudaDrive is on the Pi Store Install BarracudaDrive via the Raspberry Pi store if you already have a Raspberry Pi up and running. Follow the configuration tutorial after you have installled BarracudaDrive from the Raspberry Pi store. You will need to install Linux on the SD card, power up the board, and configure Linux before you can install BarracudaDrive. Preparing the SD card:Insert the SD card into your computer.Download Win32DiskImager.Unpack and start Win32DiskImager.Download and unpack the Raspbian "wheezy" version.Click the blue folder icon in Win32DiskImager and select your Raspbian image file -- i.e. the binary file you unpacked in step 4.In the device list, select your SD card.Click "Write". You can remove the SD card from your computer when the above write operation has completed. The Raspberry Pi is a complete computer that you can connect to your monitor, keyboard, and mouse. Download and install the free SSH Putty client for Windows.

Raspbian Wheezy armhf Raspberry Pi minimal image After the Debian Wheezy armel image I made a new one based on Raspbian armhf. This one is compiled with hard float support, so basically floating point operations are MUCH faster because they are done in hardware instead of software emulation Features include: A minimal Raspbian Wheezy installation (similar to a netinstall)Hard Float binaries: floating point operations are done in hardware instead of software emulation, that means higher performancesDisabled incremental updates, means apt-get update is much fasterWorkaround for a kernel bug which hangs the Raspberry Pi under heavy network/disk loads3.6.11+ hardfp kernel with latest raspberry pi patchesLatest version of the firmwaresFits 1GB SD cardsA very tiny 118MB image: even with a 2GB SD there is a lot of free spacessh starts by defaultThe clock is automatically updated using ntpIPv6 supportJust 14MB of ram usage after the boot Here is the link to download my custom image: You will have to extract the image with p7zip:

Related: