Linux Host

This section describes the process for installing a new Operating System using the SD Card method on a Linux host machine.

  • Step 1: Prepare MicroSD card
  • Step 2: Find SD Card Device name
  • Step 3: Recall Download Location
  • Step 4: Unzip SD Card Install Image
  • Step 5: Go to directory with SD Card Install Image directory via the commandline
  • Step 6: Locate SD Card Install Image
  • Step 7: Install Image onto SD Card
  • Step 8: Prepare B2260 with SD card

####Step 1: Prepare MicroSD card

  • Ensure data from mircoSD card is backed up
  • Everything on microSD card will be lost by the end of this procedure.

####Step 2: Find SD Card Device name

  • From the host computer open “Terminal” (or equivalent) application
  • Remove SD card from host computer and run the following command: 
    $ lsblk
  • Note all recognized disk names
  • Insert SD card and run the following command (again): 
    $ lsblk
  • Note the newly recognized disk. This will be your SD card.
  • Remember your SD card device name, it will be needed in Step 7.

####Step 3: Recall Download Location

  • Locate SD card install file from Downloads page.
  • This file will be needed for the next step.

####Step 4: Unzip SD Card Install Image

  • When unzipped, you will have a file:
    • Install Image (.img)

####Step 5: Go to directory with SD Card Install Image folder using Terminal

  • Open “Terminal” application on host machine
  • cd to the directory with your unzipped SD Card Install Image 
$ cd <extraction directory>

#Example:
#<extraction directory> = /home/YourUserName/Downloads
#For this example we assume the "SD Card Install Image" is in the Downloads folder.
$ cd /home/YourUserName/Downloads

####Step 6: Locate SD Card Install Image

  • Make sure you are in the extraction directory
  • Locate your preferred image file (latest one maybe the best option)

Unzipped SD Card download will be a file. Type ls from command line :

ls

#output
b2260-jessie_developer_YYYYMMDD-X.img

####Step 7: Flash Image onto SD Card

Checklist:

  • SD card inserted into host computer
  • Recall SD card device name from Step 2
  • Using the Terminal to copy b2260-jessie_developer_YYYYMMDD-X.img image file into SD card by running the following commands:

Execute:

$ sudo dd if=b2260-jessie_developer_YYYYMMDD-X.img of=/dev/XXX bs=4M
$ sudo sync

Note:

  • if=b2260-jessie_developer_YYYYMMDD-X.img: should match the name of the image that was downloaded.
  • of=/dev/XXX: XXX should match the name of the SD Card device name from Step 2. Be sure to use the device name without the partition name. For example, ‘of=/dev/disk1’

  • If you get an error message “Resource Busy”, you will need to unmount the SD card without removing it from the host computer.

    Option 1:

    • In the Applications folder, find and click on the Utilities folder.
    • Click on the Disk Utility program to run it
    • Select the device that represents the SD card
    • Click on unmount and leave the SD card in the computer
    • Retry the ‘$ sudo dd if=b2260-jessie_developer_YYYYMMDD-X.img of=/dev/XXX bs=4M’

    Option 2:

    • In the terminal window, enter this command: 
      $ sudo umount /dev/<device name>
  • This command will take some time to execute (a few minutes). Be patient and avoid tampering with the terminal until process has ended.
  • Once SD card is done flashing, remove from host computer and set aside for Step 8. You may see a popup window that tells you the device is Not readable by the operating system. Ignore the message and remove the MicroSD card from the host computer.

####Step 8: Prepare B2260 with SD card

  • Make sure B2260 is powered off
  • Connect an HDMI monitor to the B2260 with an HDMI cable, and power on the monitor
  • Plug a USB keyboard and/or mouse into either of the two USB connectors on the B2260
  • Insert the microSD card into the B2260
  • Apply power to B2260, wait for board to boot

Congratulations! You are now booting your newly installed operating system directly from SD card on the B2260!