Installing Open edX Ironwood Release

I've spent the last couple of days struggling to install the Ironwood release of Open edX in an Ubuntu 16.04 Virtualbox. After struggling with various issues, I came across this post in the General Open edX Google Group:!msg/edx-code/cgMseEEKGAg/wgvld6EkAwAJ

The following instructions worked for me to finally install a stable copy of the platform:

sudo apt-get update -y
sudo apt-get upgrade -y
sudo reboot
sudo su 
export OPENEDX_RELEASE=open-release/ironwood.master

I then created the config.yml file in the current directory:

# The host names of LMS and Studio. Don't include the "https://" part:

wget$OPENEDX_RELEASE/util/install/ -O - | sudo bash
wget$OPENEDX_RELEASE/util/install/ -O - | bash
wget$OPENEDX_RELEASE/util/install/ -O - | bash

The install took almost an hour on a small Virtualbox but it did complete. The step that I believe made all the difference was running as a superuser:

sudo su