Unattended Install of VirtualBox Extension Pack

Another note I’m really leaving for myself. I’ve migrated my dotfiles project to use Chef, both installing and configuring my commonly used applications. One which is annoying is VirtualBox. 2 problems really. The first is that the VirtualBox Ubuntu repository can be super slow. For now I’m living with that.

The second is that I need to install the extension pack for good USB support. This is tricky because the download is version specific and in my chef recipe I always install the latest version. Also I had to dig around a bit to discover how to install without a GUI.

Anyway, problem solved and I figured I’d share this handy script that

• checks the installed version
• downloads the correct extension pack to the current directory
• verifies the shasum
• installs it

#!/bin/bash

set -e

version=$(VBoxManage --version)
IFS='r' read -a versions <<< "${version}"
shasums_url=https://www.virtualbox.org/download/hashes/${versions[0]}
extpack=Oracle_VM_VirtualBox_Extension_Pack-${versions[0]}-${versions[1]}.vbox-extpack
extpack_url=http://download.virtualbox.org/virtualbox/${versions[0]}
wget -O ${extpack} ${extpack_url}/${extpack}
wget -O - ${shasums_url}/SHA256SUMS | grep ${extpack} | sha256sum -c
VBoxManage extpack install --replace ${extpack}

Enjoy! ;)