Install Security Onion 14.04 into VirtualBox

Had some issues getting the guest additions working, but the following fixed it for me.

1. Make sure everything is up to date:

• sudo apt update
• sudo apt upgrade
• sudo apt dist-upgrade
• sudo apt-get autoremove
• sudo apt-get autoclean

2. Make sure the correct Xorg is installed:

• sudo apt install xserver-xorg-core

3. Install the guest utils and DKMS from the repo:

• sudo apt install virtualbox-guest-utils virtualbox-guest-x11 virtualbox-guest-dkms dkms

4. Reboot and cleanup:

• sudo reboot
• sudo apt-get autoremove
• sudo apt-get autoclean