https://github.com/kraksoft/vagrant-box
https://github.com/kraksoft/vagrant-box-debian
https://github.com/kraksoft/vagrant-box-ubuntu
https://www.debian.org/releases/wheezy/example-preseed.txt
https://help.ubuntu.com/14.04/installation-guide/example-preseed.txt
You can also read:
http://williamwalker.me/blog/creating-a-custom-vagrant-box.html
https://bitbucket.org/williamium/vagrant-boxes/downloads
http://www.skoblenick.com/vagrant/creating-a-custom-box-from-scratch/
https://github.com/fespinoza/checklist_and_guides/wiki/Creating-a-vagrant-base-box-for-ubuntu-12.04-32bit-server
Don’t forget to “Set Up an NFS Mount on Ubuntu host” before “Packaging the Box” !!!
sudo apt-get install nfs-common