Self-Installing Windows OVA. Automate and distribute Windows as an OVA.
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README.md

Self-Installing Windows OVA

because I can't distribute Windows

Overview

This is an Virtual Machine in OVA format that will install Windows ontop of itself. I wrote this as an alternative to packer. This OVA basically downloads the evaluation version of the Windows version you select to one drive as installation media and then installs onto the primary drive. After this is done, the smaller secondary drive can be discarded to save disk space. If the default size of the primary drive is not large enough, it should be resized BEFORE booting the OVA for the first time.

windows 10

Customizing

This OVA supports being repackaged with an ISO for further customization. Simply add at least one file, install.cmd to an iso and attach it before booting the OVA for the first time. The system will boot up, and copy the contents of the iso to the secondary drive, display a message to the user upon success, then shutdown. The VM can be exported as a OVA now for redistribution.

Contents for an example iso are in the iso/ directory. There is also a Makefile target for building this iso, example.iso.

install.cmd

This is simply run at first login after install. Place things in here like silent installation instructions for programs either off the same iso or downloaded from the internet.

variables.txt

This file should set at least one variable.

version

This should be one of the following keys:

key Version
win2k16 Windows 2016 Standard
win10-64 Windows 10 64-bit
win10-32 Windows 10 32-bit
win2k12r2 Windows 2012 R2 Standard
win81-64 Windows 8.1 64-bit
win81-32 Windows 8.1 32-bit
win8-64 Windows 8 64-bit
win8-32 Windows 8 32-bit
win2k8r2 Windows 2008 R2 Standard
win7-64 Windows 7 64-bit
win7-32 Windows 7 32-bit

localmirror

This should be the absolute address of a local mirror for ISOs. It can also be "none" for no mirror and no prompt. This allows truly unattended installation.

Example variables.txt

version=win10-64
localmirror=http://192.168.0.1/isos/

Autounattend.xml

If this file is present on the ISO, in a directory named for the version key being installed, it will be used instead of an Autounattend.xml from the boxcutter project. One gotcha is how Windows 7 and Windows 2008 think the install media is DriveID 0 and the actual "C" drive is DriveID 1. Keep that in mind when crafting answer files for these versions.

Building

To build this, start with a debian system and install virtualbox and the following:

apt-get install fakeroot multistrap debian-archive-keyring rsync mtools
genisoimage qemu-img dosfsutils