Mouse integration only thing working with Kali on VirtualBox

[h0pl1t]

Hi,
So I installed Kali on Virtualbox under Windows 7 host and proceeded to follow steps as outlined in the official guide in order to enable guest integration. My goal is to enable mouse integration and full-screen, just like every other VM I have:

apt-get update
apt-get install -y virtualbox-guest-x11

The only thing I get integrated after rebooting virtual machine is mouse integration, but not full-screen.
I also tried with VirtualBox Guest Additions, only thing I got is "unable to find software" message. Copied the VBoxLinuxAdditions.run file and made it executable and ran it, but no luck. Tried to install headers files, to make the integration happen:

apt-get install linux-headers-$(uname -r)

all I got was "unable to locate package" and "could not find package"
What am I missing here? How to get the full-screen integration along with mouse intergation with kali on virtualbox?

[jqreator]

I'm having the same issue with a fresh install. Did you find a resolution?