CentOS 7 virtualbox OS with guest additions HD

centos 7
virtualbox install tutorial
virtualbox guest additions install tutorial linux

links:

documentation: https://docs.google.com/document/d/1wxtm-C-ycbj8f1jZMDyTV1fLrfgBEiP5RpkthAdF6Rs/edit?usp=sharing

VirtualBox download 100 MB: https://www.virtualbox.org/wiki/Downloads

CentOS7 Gnome download 1.03 GB: http://buildlogs.centos.org/centos/7/isos/x86_64/CentOS-7-live-GNOME-x86_64.iso

audio credit: youtube

source
centos 7