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1. Make a backup of any custom files that you created on the IzoT Router (e.g., Web pages, IzoT Device Apps, Server settings).
   
   

2. Check the free space on the IzoT Router internal flash drive by entering the following command at the Linux console: df
   
   

3. If you have less than 150MB of free space on your flash drive, you must delete files until you have at least 150MB of free space. You can enter the following command to find all files over 5MB. Look for any large log files that you can delete.

   Code Block
   sudo find / -type f -size +5M -exec ls -lh {} \;

   
   

4. Download the IzoT Router software (e.g., izot-sdk- {ver}-re.tar.gz)to your computer using the download link provided by Echelon EnOcean technical support staff.
   
   

5. Use an SFTP client to copy the IzoT Router update image to the /tmp directory on your IzoT Router. The default login information is in Configuring the IzoT Router.
   
   

6. Use an SSH client on your computer to open an SSH console session for your IzoT Router.
   
   

7. Record the current version number of the IzoT SDK on your IzoT Router. You will need this for a later step. To determine the version of the IzoT SDK on you IzoT Router, enter the following commands:

   Code Block
   cat $IZOT/izot/version.py

   
   

8. Change to the /tmp directory:

   Code Block
   cd /tmp

   
   

9. Unpack the software:

   Code Block
   tar -xf izot-sdk-{ver}-re.tar.gz

   
   

10. Install the software:

    Code Block
    deactivate izot-sdk-{ver}-re/install

    
    

11. Once the software is installed successfully, you can remove the zipped download and unpacked files:

    Code Block
    rm -rf izot-sdk-{ver}-re rm izot-sdk-{ver}-re.tar.gz

    
    

12. If the version number you recorded in step 5 is lower than 1.02.27, enter the following commands to enable booting from the USB flash drive:

    Code Block
    tar -xf $IZOT/etc/izot-tools-bbb.tar.gz boot sudo boot/update-boot