Setting up your Raspberry Pi hardware

We suggest two different ways for setting up your hardware: Acquire and burn a pre-configured raspian image provided by us on your SD card OR use the NOOBS installer that comes with your SD card. If you were to use the pre-configured image, you will spend more time outside labs (acquiring and burning the image on your SD card) and less time in labs configuring and testing it. If you used the NOOBS installer, you don’t have to do any outside lab prep, but will need more time in lab (approximately 1 hour) to install Raspian, configure it and also install other packages that you need. You may also do some of these steps at home if you have access to a keyboard, mouse and monitor or TV. Choose the method that you prefer. In general I would recommend option 2, unless you find that the labs are too busy. Before starting, check that you have all the hardware items included in your raspberry pi kit. For more information see this page on a description of components. Here is a list of items that you will need:

Option 1: Setup the hardware using our pre-configured Raspian image

Acquire the image file

The compressed (zipped) version of the pre-configured Raspian image is available on ieng6 in the folder /home/linux/ieng6/cs30f/public/hw_image/2016-05-27-raspbian-jessie.img.zip (1.56GB).

The SHA-1 for the zip file is: d7aa6f606197a4891a73a77cc7912fc322ade540

Depending on the speed of your internet connection, copying the image file to your local machine over the network may take a while. To copy the file use scp or any other file transfer protocol. If your laptop provides a bash environment and scp run the following command.

scp cs30fxx@ieng6-241.ucsd.edu:/home/linux/ieng6/cs30f/public/hw_image/*.zip ./


$ docker run -it --rm --privileged=true -v /Users/diba/git/emulate-pi-docker/images:/usr/rpi/images -w /usr/rpi -h localhost ryankurte/docker-rpi-emu /bin/bash -c './run.sh images/2016-05-27-raspbian-jessie.img /bin/bash'

If you are relying on the virtual environment on ieng6, do the next section on customizing your image after burning the image on the SD card.

Customize the image

If you are running Raspian on the actual hardware, open a terminal on your Raspian desktop to obtain a command line prompt. If you are within a virtual environment you should already be at the command line within Raspian.

  1. Add in your WiFi credentials for UCSD-PROTECTED

Open the file /etc/wpa_supplicant/wpa_supplicant.conf. You may use either nano or vi to open the file as follows:

sudo nano /etc/wpa_supplicant/wpa_supplicant.conf

The wpa_supplicant.conf file has the following content:

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1

network={
        ssid="UCSD-PROTECTED"
        proto=RSN
        key_mgmt=WPA-EAP
        pairwise=CCMP
        auth_alg=OPEN
        eap=PEAP
        identity=""
        password=""
        phase2="auth=MSCHAPV2"
}

Set the identity and password fields using your Active Directory OR cs30f account credentials. Save and close the file.

  1. Change the hostname and password for the user “pi” as follows:
$ sudo raspi-config

You will see the following screen:

raspi-config

raspi-hostname

raspi-change-hostname

This completes the customization of your Pi image. If you are in docker, type exit to leave your virtualized Pi environment.

Burn the image on your SD card

Acquire the software to burn images

To burn the image you may use the command line or other sofware. Here are our recommendations depending on what OS you have:

Burn the image

You are now ready to boot the Pi in desktop mode and verify your setup. To do this you must be physically present at one of the “Pi” stations in the B230 lab where you have access to a keyboard, monitor and mouse.

Boot up your Pi on a “Pi station”

Go to any of the ten “Pi stations” in the lab. Here you will have access to a keyboard, monitor and mouse. To run your Pi as a desktop computer, follow these steps.

  1. Connect the keyboard and mouse to any two USB ports on your Pi.

  2. Connect the monitor to the Pi using the hdmi cable.

  3. Insert the micro SD card into the Pi (take help from a tutor if you don’t know how to do this)

  4. Connect the power supply to your Pi to turn it on. The Pi should start booting up with messages scrolling on your monitor.

  5. After the Pi boots up, you should see a graphical desktop. If you see a login prompt instead, enter the credentials for the user “pi”. The default password is “raspberry”, however, if you have customized your image file already, your password should be something different. If you see a command prompt enter sudo startx to get to the graphical desktop.

  6. If you have not customized your image yet, return to the earlier section on customizing your image. Then return to this step and restart your Pi by typing the following in a terminal window

$ sudo shutdown -r now
  1. Check your network connectivity following these instructions If you were able to connect to UCSD-PROTECTED and got a global IP, then congratulations! You are pretty much done and only need to try connecting to your Pi remotely following this tutorial. If you were not able able to connect to UCSD-PROTECTED, check that you have the right Wifi configurations in your /etc/wpa_supplicant/wpa_supplicant.conf file. If you still can’t connect, that’s fine. You should be able to connect over UCSD-GUEST, install any packages that you need and use git. You would only be limited in connecting remotely to your Pi on the UCSD network. Consider setting up your Pi as a server on your home WiFi network following this tutorial on weaved. Note that the free plan on weaved only allows for 30-minute connection times per ssh session.

Option 2: Install Raspian using the NOOBS installer

If you have bought the Raspberry Pi 3 kit, your SD card already has the NOOBS installer on the SD card. To do the next steps you must be physically present at a “Pi station” in the labs where you have access to a keyboard, monitor and mouse. Follow these steps

noobs

raspian-install

rpi-desktop

rpi-desktop1

rpi-desktop2 rpi-desktop3 rpi-desktop4 

$ sudo apt-get update


pi@spispi-dm28:~ $ scp cs30fzz@ieng6-240.ucsd.edu:/home/linux/ieng6/cs30f/public/wpa_supplicant.conf ./

Follow the prompts to transfer the sample file

rpi-wpa

Open the file in vi or nano and enter your wifi credentials, refer to the “Customize your image” section above

Make a backup of your existing configuration file and replace the old config file with the new file

$ sudo mv /etc/wpa_supplicant/wpa_supplicant.conf /etc/wpa_supplicant/wpa_supplicant.conf.backup
$ sudo mv ./wpa_supplicant.conf /etc/wpa_supplicant/wpa_supplicant.conf


$ sudo shutdown -r now



$ sudo apt-get install git

$ sudo apt-get install vim-gui-common

$ sudo apt-get install vim-gtk

$ sudo apt-get install tightvncserver

$ sudo apt-get install xrdp

$ sudo apt-get install weavedconnectd

$ sudo weavedinstaller