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SetupPi.md

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Raspberry Pi setup from scratch

I plugged in a cheap 4 GB SD card I just had lying around, brought the system up and running and cobbled together bits and pieces and got a working system. This document here describes all the necessary steps to get up and runnig with a virgin SD card. If you follow all the steps in this document, you should have a RPi ready to use for the GlobalDiagnostiX project. The aim is to be able to interact with several cameras (Elphel, Awaiba, The Imaging Source) and to acquire images from a scintillator screen using a (commercial) x-ray source.

Prerequisites

  • According to the Embedded Linux Wiki, a Transcend 16GB SDHC card is working well. Order one from Digitec for (currently) 24 CHF.
  • Download the BerryBoot Installer and unzip it onto your SD card
  • Boot your Raspberry Pi from this SD card to install a current version of Raspbian or any other operating system.
  • Reboot. This will then go through raspi-config to reconfigure locales, keyboard and timezone (if necessary)
  • sudo /etc/ntp.conf to add the timeservers of PSI to the configuration, so we have the correct time. Add the lines below as first server entries

    Permit time synchronization with our time source, but do not

    permit the source to query or modify the service on this system.

    server pstime1.psi.ch restrict pstime1.psi.ch mask 255.255.255.255 nomodify notrap noquery server pstime2.psi.ch restrict pstime2.psi.ch mask 255.255.255.255 nomodify notrap noquery server pstime3.psi.ch restrict pstime3.psi.ch mask 255.255.255.255 nomodify notrap noquery

Further setup

  • Update the repositories and upgrade the system to the newest packages with sudo apt-get update && sudo apt-get upgrade. This will will take a long time

  • Reboot

  • Install git and pull the GlobalDiagnostiX repository into your home folder. This should also take care of the git configuration, since we're also pulling the .gitconfig from the repo.

    sudo apt-get install git cd sudo rm -r * # to remove EVERYTHING from your home directory sudo rm -r .* # REALLY, EVERYTHING! git clone https://github.com/habi/GlobalDiagnostiX.git ~ # clone the GitHub repo into your home directory nano SetupPi.md # change something in the file git commit -a;git push # commit the change and push it back to the repo to see if that works

  • Install other packages with the lines below. This will take either take a very long time or go quite quickly if the command above took long. Anways, go and have a coffe.... You can either do it line by line (below, with explanations) or just copy the oneliner at the bottom which does everything in one go.

    sudo apt-get install libblas-dev # good for scipy and numpy, see also http://raspberrypi.stackexchange.com/a/1730 sudo apt-get install liblapack-dev # ditto sudo apt-get install python-dev # we want to develop in python sudo apt-get install libatlas-base-dev # speeds up execution according to http://is.gd/H7zqxv sudo apt-get install gfortran # compiler for scipy and numpy sudo apt-get install python-setuptools # helps with download, build and installation of Python packages sudo apt-get install python-scipy # install scipy sudo apt-get install python-numpy # install numpy sudo apt-get install python-matplotlib # no plotting without it sudo apt-get install ipython # interactive Pythoning sudo apt-get install geany # my preferred Python IDE sudo apt-get install imagemagick # do some image magic sudo apt-get install imagej # view and work with images sudo apt-get install chromium-browser # faster than Midori according to http://is.gd/8Hgfcc sudo apt-get install screen # Nice terminal multiplexer sudo apt-get install telnet # so we can telnet to the Elphel-camera as 'root'/'pass' sudo apt-get install ftp # so we can ftpstuff to the Elphel-camera sudo apt-get install gftp # so we can graphically ftpstuff to the Elphel-camera sudo apt-get install gedit # graphical text editor sudo apt-get install tkdiff # a graphical tool to diff files sudo apt-get isntall mplayer vlc # install two movie players, to look at camera output

Here's all of the above as a oneliner:

sudo apt-get install libblas-dev liblapack-dev python-dev libatlas-base-dev gfortran python-setuptools python-scipy python-numpy python-matplotlib ipython geany imagemagick openjdk-6-jre openjdk-6-jdk imagej chromium-browser screen telnet ftp gftp gedit tkdiff mplayer vlc

Tweaks

  • Num Lock on boot (according to RPi-forum
    • sudo nano /etc/kbd/config
    • CTRL+V two or three times to go to line 67 (nearly at the bottom)
    • remove the comment in front of "LEDS=+num"
  • Install and set up pep8
    • sudo easy_install pep8
    • Open Geany and open the Build > Set Build Commands menu
    • For Independend commands Nr. 2, paste pep8 %f and for Error regular expression add ([^:]+):([0-9]+):([0-9:]+)? .* (adapted from the Geany wiki).
  • Buy a small monitor
    • I bought http://bit.ly/10N9MbN and used a 12V power supply we had at TOMCAT.
    • Setup the composite (yellow) output to support the resolution of the monitor (PAL or NTSC, 480x272)
      • Go to 'Edit menu' in the BerryBoot boot menu, click on the arrow on top right to go to 'Advanced configuration' and edit the config.txt. See this post in the RPI forum for a screenshot.
      • add framebuffer_width=480 and sdtv_aspect=3, according to the Video mode options
      • Reboot with 'Exit'
      • Have fun!