How to manually install Linux Header for my BeagleBone Black running Ubuntu?

I’m using BeagleBone Black with pre-built Ubuntu Precise 12.04 LTS image at http://www.armhf.com/boards/beaglebone-black/bbb-sd-install/.

Everything’s fine, but I need to install some packages that require Linux Header, and I found nothing suitable with my kernel uname -r 3.14.4.1-bone-armhf.com

I found the Linux Header http://s3.armhf.com/dist/bone/linux-headers-3.14.4.1-bone-armhf.com.tar.xz, also released by them, but unfortunately, I dont know how to Install Linux Header Manually, or do something useful with it.

Any help would be appreciated, and sorry for my bad research.

Best Regards

Loi Dang