Vagrant is open-source software for creating and configuring virtual development environments. It can be considered a wrapper around VirtualBox and configuration management software such as Chef, Salt and Puppet. Although written in Ruby, it is usable in other programming projects such as PHP, Python, Java, and C#.

Quick workflow is such:

1. you register base box with vagrant box add
2. you create Vagrantfile with vagrant init BASEBOXNAME
3. you bring up VM defined in Vagrantfile with vagrant up
4. you log in to VM with vagrant ssh

The commands are run in dir where is Vagrantfile.

Base box you need to import only once, you can make new VM's without need to improt base box again.

box add command is needed only once or if you want to refresh your base box.

32bit Th longterm kernel:

$ vagrant box add pld32 ftp://ftp.pld-linux.org/people/glen/vm/pld32.box
$ vagrant init pld32
$ vagrant up
$ vagrant ssh

64bit Th longterm kernel:

$ vagrant box add pld64 ftp://ftp.pld-linux.org/people/glen/vm/pld64.box
$ vagrant init pld64
$ vagrant up
$ vagrant ssh

the .box is actually importable by plain VirtualBox as well if you rename the file as .ova, on ftp there are symlinks for .ova files made for convenience.