Kali

Installation

• Download the latest 64-bit image from: https://www.offensive-security.com/kali-linux-arm-images/
• Write image to a microSD card, preferably rating 10 or higher, using Etcher.
• Plug the microSD card into the Pi and boot.
• Reset SSH password, then run apt-get update & apt-get upgrade
• Install Raspi-config:
  • Download raspi config package:
    • # wget https://archive.raspberrypi.org/debian/pool/main/r/raspi-config/raspi-config_20180406+1_all.deb
    • Feel free to browse the folder to get the last version: https://archive.raspberrypi.org/debian/pool/main/r/raspi-config/
  • Install it:
    • # dpkg -i raspi-config_20180406+1_all.deb
      • You could have some dependencies warning. The next step will fix this
  • Fix dependencies if needed
    • # apt-get -f install
    • Raspi-config is now available with:
      • # raspi-config
  • Check disk usage with df -h. If the image has not expanded to fill the entire SD card, resize it using raspi-config.

Display Control

• To turn screen OFF:
  • # echo 1 > /sys/class/backlight/rpi_backlight/bl_power
• To turn screen ON:
  • # echo 0 > /sys/class/backlight/rpi_backlight/bl_power

Predictable Interface Names

Linux will frequently change the ordering of network interfaces depending on the order in which the modules are loaded on boot. This can be made more predictable.

• Add to the following lines to /etc/modules:
  • brcmfmac
  • brcmutil
  • rt2008usb
  • It should look something like this:
    • # cat /etc/modules
    • # /etc/modules: kernel modules to load at boot time.
    • #
    • # This file contains the names of kernel modules that should be loaded
    • # at boot time, one per line. Lines beginning with "#" are ignored.
    • brcmfmac
    • brcmutil
    • rt2008usb
• Ensure that net.ifnames=1 in /boot/cmdline.txt

If these changes do not suffice, more in-depth configuration options can be explored here.

GPIO Setup

Kali doesn't come with the GPIO setup/installed, so if it's needed, you'll need to set it up.

Error when running apt-get update/apt-get upgrade:

NOTE: This error will typically occur if the Kali installation hasn't been updated in a long time (several years?)

For the error:

  The following signatures were invalid: EXPKEYSIG ED444FF07D8D0BF6 Kali Linux Repository <devel@kali.org>

Add the gpg key:

gpg --keyserver hkp://keys.gnupg.net --recv-key 7D8D0BF6

Check the fingerprint:

gpg --fingerprint 7D8D0BF6

Sample output:

pub   rsa4096 2012-03-05 [SC] [expires: 2021-02-03]

      44C6 513A 8E4F B3D3 0875  F758 ED44 4FF0 7D8D 0BF6

uid           [ unknown] Kali Linux Repository <devel@kali.org>

sub   rsa4096 2012-03-05 [E] [expires: 2021-02-03]

then :

gpg -a --export 7D8D0BF6 | sudo apt-key add -

apt update

Answer from the official documentation:

Note that if you haven’t updated your Kali installation in some time (tsk²), you will like receive a GPG error about the repository key being expired (ED444FF07D8D0BF6). Fortunately, this issue is quickly resolved by running the following as root:

wget -q -O - https://archive.kali.org/archive-key.asc | apt-key add