Update Raspberry pi firmware from Kali Linux

We can easily update Raspberry pi firmware in raspbian by running the command rpi-update, But in kali linux we dont have rpi-update command by default.

To install the rpi-update in kali, run the following command:

sudo curl -L --output /usr/bin/rpi-update https://raw.githubusercontent.com/Hexxeh/rpi-update/master/rpi-update && sudo chmod +x /usr/bin/rpi-update

Then, to update your rpi firmware, run the following command:

sudo rpi-update

Now restart your rpi to new firmware to take effect.
For more Expert options visit the rpi-update project page