I am just starting with Vagrant and I am having a little trouble understanding a few details. I have read through the docs but still am missing a basic concept. When I want to start a Vagrant box I run:
vagrant up
This will "build the VM based on the box" I understand that the boxes are stored at ~/.vagrant.d and in fact I have packaged up my own box from a base Ubuntu box. However, when I run vagrant up and start to add files to the vm, where is the virtual hard drive for the vm stored? For example, when I run apt-get install apache2 and the root system is modified, where is this modified?
When I do a du on my current directory I do not see any changes. I also do not see any changes in the ~/.vagrant.d directory. However, I can do vagrant halt, restart my local machine and then run vagrant up again and the changes are persisted somewhere.
vagrant up also reports
[default] VM already created. Booting if its not already running...
Can someone tell me where the VM is created and where the changes are made?