Convert a Turnkey appliance (https://www.turnkeylinux.org) in to a Vagrant box. This is about VirtualBox and the Laravel flavor but it's expected to work with any debian based Turnkey appliances.

Turnkey2Vagrant.txt

 1. Download ova from https://www.turnkeylinux.org/laravel
 2. Import ova to VirtualBox.
 3. Add an empty optical drive to machine
 4. Run the machine and login as root
 5. Exec ```apt-get install linux-headers-$(uname -r) build-essential dkms sudo```
 6. Insert Guest Additions CD image.
 7. Exec ```mkdir /media/cdrom```
 8. Exec ```mount /dev/cdrom /media/cdrom/```
 9. Exec ```sh /media/cdrom/VBoxLinuxAdditions.run```
10. Create the vagrant user ```adduser vagrant```
    User: vagrant
    Pass: vagrant
11. Make vagrant sudoer ```usermod -aG sudo vagrant```
12. Elevate vagrant to run sudo with no password:
    a. Exec ```visudo -f /etc/sudoers.d/vagrant```
    b. Write 'vagrant ALL=(ALL) NOPASSWD:ALL' and save.
13. Change to vagrant ```su vagrant```
14. In /home/vagrant/.ssh create a file 'authorized_keys' with content:
    ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEA6NF8iallvQVp22WDkTkyrtvp9eWW6A8YVr+kz4TjGYe7gHzIw+niNltGEFHzD8+v1I2YJ6oXevct1YeS0o9HZyN1Q9qgCgzUFtdOKLv6IedplqoPkcmF0aYet2PkEDo3MlTBckFXPITAMzF8dJSIFo9D8HfdOV0IAdx4O7PtixWKn5y2hMNG0zQPyUecp4pzC6kivAIhyfHilFR61RGL+GPXQ2MWZWFYbAGjyiYJnAmCP3NOTd0jMZEnDkbUvxhMmBYSdETk1rRgm+R4LOzFUGaHqHDLKLX+FIPKcF96hrucXzcWyLbIbEgE98OHlnVYCzRdK8jlqm8tehUc9c9WhQ== vagrant insecure public key
15. Shutdown machine
16. Package machine by executing: 
    ```vagrant package --base 'TURNKEY LARAVEL' --output tk_laravel.box```
    'TURNKEY LARAVEL' is the machine name appeared on VirtualBox after ova import (step 2).
17. Add box by executing ```vagrant box add tk_laravel.box --name tk_laravel```
18. Create a 'Vagrantfile' with content:
    Vagrant.configure("2") do |config|
      config.vm.box = "tk_laravel"
    end
19. Exec ```vagrant up```