DEPRECATED

The following guide is to be used on a Linux computer (may also work on OSX). These instruction were partially extracted from the following resources:

• https://www.elinux.org/BeagleBoardUbuntu
• https://embeddedprogrammer.blogspot.co.at/2012/10/beaglebone-installing-ubuntu-1210.html

• download Ubuntu 12.04 (arm, minimal) image
  • wget https://rcn-ee.net/deb/rootfs/precise/ubuntu-12.04-r9-minimal-armhf-2012-11-29.tar.xz
  • tar xJf ubuntu-12.04-r9-minimal-armhf-2012-11-29.tar.xz
  • cd ubuntu-12.04-r9-minimal-armhf-2012-11-29
• clone image to sd-card (must be 4gb)
  • make sure /dev/sdb is actually your sd-card (!)
  • sudo ./setup_sdcard.sh --mmc /dev/sdb --uboot bone

• connect BeagleBone to router and ssh into it
  • ssh [email protected]
  • password is: temppwd
• enable root, become root
  • sudo passwd root
  • su
• change name in /etc/hostname and /etc/hosts
  • replace arm with lasersaur
• install/remove packages
  • sudo apt-get update
  • apt-get install avahi-daemon
  • apt-get install arduino-core
  • apt-get install git
  • apt-get install screen
  • apt-get purge apache2; apt-get autoremove
• install LasaurApp
  • git clone git://github.com/stefanix/LasaurApp.git
  • in the future, simply update with cd ~/LasaurApp; git pull
  • place script in: /etc/init.d/lasaurapp.sh
  • make executable: sudo chmod 755 /etc/init.d/lasaurapp.sh
  • activate with: sudo update-rc.d lasaurapp.sh defaults

#!/bin/bash
# place in: /etc/init.d/lasaurapp.sh
# make executable: sudo chmod 755 /etc/init.d/lasaurapp.sh
# activate with: sudo update-rc.d lasaurapp.sh defaults
# deactivate with: sudo update-rc.d -f lasaurapp.sh remove

if test "$1" = "start"
then
    echo "Starting LasaurApp ..."
    /usr/bin/python /root/LasaurApp/backend/app.py -p --beaglebone
fi

You can Wifi-enable the system by adding a usb wifi dongle and doing the following. This works with dongles that use the rtl8192cu chipset, for example the Edimax EW-7811Un or the OurLink.

• edit /etc/network/interfaces
  • for wpa-ssid and wpa-psk, enter you access point name and passphrase
• restart BeagleBone

This is useful to add some more security. For admin tasks you would then use the sudo command.

• rename ubuntu user to pi
  • usermod -l pi ubuntu
  • usermod -c "lasersaur user" pi
  • usermod -md /home/pi pi
  • groupmod -n pi ubuntu
• lock root account (optionally)
  • sudo passwd -l root

• check what service are listening for connections
  • netstat -plnt
• backup sd-card
  • sudo dd if=/dev/<sdx> | gzip > /path/to/image.gz
• restoresd-card
  • gzip -dc /path/to/image.gz | sudo dd of=/dev/<sdx>
• backup/restore with progress
  • sudo dd if=/dev/<sdx> | pv -s 4G -peta | gzip -1 > /path/to/image.gz
  • gzip -dc /path/to/image.gz | pv -s 4G -peta | sudo dd of=/dev/<sdx>