The answer is: a lot.

If the base image is about 5Gb in ~/Downloads

  • This will be copied to ~/.vagrant.d/boxes
  • Then it will unpack to maybe 18Gb in ~/.vagrant.d/tmp
  • vagrant up will cost you another 18Gb under ~/VirtualBox VMs

That’s a total of 46Gb free space needed, because Vagrant doesn’t clean up as it goes.


  • You can delete the original base image after provisioning
  • Use a hard-drive space visualisation tool like GrandPerspective (Mac) or WinDirStat (Windows)