+ Download the image from the following site:

  https://www.offensive-security.com/kali-linux-arm-images/

+ Uncompress the downloaded file:

  unxz -v kali-<version>.img.xz 

+ Copy the image to your SD CARD device (in this case /dev/sdb)

  dd if=kali-<version>.img of=/dev/sdb bs=4M iflag=fullblock oflag=direct status=progress

+ Set a new password for the root user

  passwd

+ Upgrade the system

    apt-get update
    apt-get dist-upgrade

+ Install OpenSSH Server (in case is not installed)

    apt-get install openssh-server
    update-rc.d -f ssh defaults

+ Reconfigure the OpenSSH server to generate new host keys

    cd /etc/ssh/
    mkdir insecure_old
    mv ssh_host* insecure_old
    dpkg-reconfigure openssh-server

+ Allow root login through SSH
    	vim /etc/ssh/sshd_config
      	PermitRootLogin without-password -> PermitRootLogin yes
    sudo service ssh restart

+ Resize partition

  Option 1:
    apt-get install gparted
    gparted
      select ext4 file system 
      click the “Resize/Move” button
      select all the free space
      click the “Resize” button and the “Apply” button

  Option 2:  
    resize2fs /dev/<device>

+ Configure Autologin for Headless Operation

    useradd -m eve -G sudo -s /bin/bash
    passwd eve
    vim /etc/lightdm/lightdm.conf
      autologin-user=root
      autologin-user-timeout=0
	vim /etc/pam.d/lightdm-autologin
    	# Allow access without authentication
    	### auth required pam_succeed_if.so user != root quiet_success 
    	auth required pam_permit.so
	reboot