How To Update Firmware via SSH

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Contents

Introduction

There may be cases where it is beneficial or even necessary to update the firmware on a device without using the web browser. It is possible to update firmware by using SSH and using the fwupdate command. This wiki is a walkthrough of getting the image on the device, and then flashing it.

Getting the Image on the Device

The first step of flashing an image in shell is getting the firmware image on the device. There are two easy ways to do this, SFTP the image to the device, or use wget from the device to download the image from an external source.

Using SFTP to Upload the Image
  1. Navigate to the folder on your computer where the firmware file is located. 
    mhardy@mhardy-laptop:~/temp/firmware$ ls *

    DLB-CPE_24.v5.23.20642.080822.164518.img

    

    

  2.  Using SFTP, login to the device

    mhardy@mhardy-laptop:~/temp/firmware$ sftp admin@192.168.2.66

    Connecting to 192.168.2.66...

    Failed to add the host to the list of known hosts (/home/mhardy/.ssh/known_hosts).

    admin@192.168.2.66's password: 

    

    

  3.  Navigate to the /tmp folder. This is where the firmware image will be stored

    sftp> cd /tmp

    

    

  4.  Upload firmware image. (Firmware names may vary)

    sftp> put DLB-CPE_24.v5.23.20642.080822.164518.img

    Uploading DLB-CPE_24.v5.23.20642.080822.164518.img to /var/tmp/DLB-CPE_24.v5.23.20642.080822.164518.img

    DLB-CPE_24.v5.23.20642.080822.164518.img                                           100% 4495KB 499.4KB/s   00:09    

    

    

  5.  Exit out of SFTP. File upload is complete!

    sftp> exit

    

    



  Using WGET to download the file to the device 


wget is available on these devices to transfer files from remote HTTP(s)/FTP servers. 



  1.  Login to the device via SSH

    mhardy@mhardy-laptop:~$ ssh admin@192.168.5.164

    Failed to add the host to the list of known hosts (/home/mhardy/.ssh/known_hosts).

    admin@192.168.5.164's password: 

    

    

  2.  After successful login, the CLI will be displayed

    CLI version 1.0

    Available commands:

      authcheck  - Test authentication config

      passwd     - Change any administrator password

      reboot     - Reboot device

      reset      - Reset device to defaults

      shell      - Start system shell

      show       - Show device configuration

      status     - Show device status

      quit       - Exit CLI

    

    

  3.  Type 'shell' to escape to shell.

    cli> shell

    Launching system shell.

    Enter 'exit' or Ctrl-D to return from shell.

    

    

    BusyBox v1.5.0 (2008-08-22 12:51:10 EEST) Built-in shell (ash)

    Enter 'help' for a list of built-in commands.

    

    

    

  4.  Navigate to the /tmp directory

     cd /tmp

    

    

  5.  Using wget, download firmware image from specified URL

    wget http://www.deliberant.com/downloads/firmware/DLB-CPE_24.v5.23.20642.080822.164518.img

    Connecting to www.deliberant.com (67.211.11.195:80)

    DLB-CPE_24.v5.23.206 100% |********************************************************|  4494 KB 00:00:00 ETA

    

    

  6.  File is now on the device, now move on the flashing!



  Flashing the Image 


Once the image is on the device, now you will want to actually flash it. 



  1.  SSH into the device 

    mhardy@mhardy-laptop:~/temp/firmware$ ssh admin@192.168.2.66

    Failed to add the host to the list of known hosts (/home/mhardy/.ssh/known_hosts).

    admin@192.168.2.66's password: 

    

    

  2.  After successful login, the CLI will be displayed

    CLI version 1.0

    Available commands:

      authcheck  - Test authentication config

      passwd     - Change any administrator password

      reboot     - Reboot device

      reset      - Reset device to defaults

      shell      - Start system shell

      show       - Show device configuration

      status     - Show device status

      quit       - Exit CLI

    cli>

    

    

  3.  Type 'shell' to escape to the shell

    cli> shell

    Launching system shell.

    Enter 'exit' or Ctrl-D to return from shell.

    

    

    BusyBox v1.5.0 (2008-10-17 15:17:11 EEST) Built-in shell (ash)

    Enter 'help' for a list of built-in commands.

    

     

    

    

  4.  Navigate to the /tmp directory

    cd /tmp

    

    

  5.  Rename previously uploaded file to 'fwupdate.bin'

     mv DLB-CPE_24.v5.23.20642.080822.164518.img fwupdate.bin

    

    

  6.  Finally, run 'fwupdate -m'

    fwupdate -m

    /sbin/fwupdate: About to run firmware update

     

    

    



Now, device will flash, and reboot with new firmware. When device loads, the new firmware should be active.
Enjoy!



  Notes 






Retrieved from "http://wiki.deliberant.com/index.php/How_To_Update_Firmware_via_SSH"

						
			

		

	

		

		

	
	

		
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