Home

How to install spreadpi onto your raspberry pi

• First, do realise that spreads and spreadpi are both work in progress! They are not yet ready for general public use. That said, by all means, do experiment with spreadpi!
• Choose an SD card.
  • Make sure it's the fastest and the most reliable you can get. If it's not class 10, don't even think about using it. Buy a well known brand of card from a reputable shop.
  • In terms of size, 2Gb is enough for testing. You probably want more space for production diybookscanner use.
• Get a spreadpi image to flash onto your SD card.

  wget http://buildbot.diybookscanner.eu/spreadpi_git%403f01918_8627.img.gz

• Unzip the spreadpi image.

  gunzip spreadpi_git@3f01918_8627.img.gz

• Check your computer's local storage.

  mount

• Insert your SD card into your sd card reader. Now check again.

  mount

  .
• What was the difference? You should have one extra line of output saying something like:

/dev/mmcblk0 on /media/usb0 type ext4 (rw,relatime,errors=remount-ro,user_xattr,barrier=1,data=ordered)

In this example, the "/dev/mmcblk0" is how your computer refers to your SD card. This could be different on your machine!

• Flash your spreadpi image to your SD card.

  sudo dd if=spreadpi_git@3f01918_8627.img of=/dev/mmcblk0

• Insert your spreadpi SD card into your raspberry pi.
• Plug your pi into the local network. Make sure you have your linux machine also connected by cable to the local network.
• Boot your raspberry pi.
• Now we'll try to find out the ip address of your pi.
• On your linux machine, install a network mapper.

  sudo apt-get install nmap

• Now let's check our linux machine's ip address.

  /sbin/ifconfig|grep -A1 eth0
  wlan0     Link encap:Ethernet  HWaddr 00:27:10:bb:e2:f1
  
  inet addr:192.168.1.101  Bcast:192.168.1.255  Mask:255.255.255.0

  .
• Aha! Nmap can find the raspberry pi on your local network.

  sudo nmap -p22 192.168.1.101/24|grep -B4 Raspberry
  Nmap scan report for 192.168.1.1
  Host is up (0.0018s latency).
  PORT   STATE  SERVICE
  22/tcp open ssh
  MAC Address: B8:27:EB:4C:00:00 (Raspberry Pi Foundation)

Mounting a spreadpi .img file

• losetup /dev/loop0 image.img

• kpartx -a /dev/loop0

• mount /dev/mapper/loop0p2 /mnt/test/

• <To mount the boot partition,

  mount /dev/mapper/loop0p1