How to shrink the VM size

The disk image tends to grow out of all proportion during seeding of the map data. It's a lot of data to build, and you need 80GB to do do an automatic build.

This is how you can shrink the disk image as you go (if you have limited build space), or preparing the VM image for release after it's finally built and seeded.

• Boot into Ubuntu Recovery Mode (hold down shift just as it load, and select Recovery Mode, then drop to command line shell from the menu) via Virtualbox's GUI and run:

  sudo zerofree -v /dev/mapper/precise64-root

  sudo halt

• Poweroff the VM

• Clone the disk:

  VBoxManage clonehd [FULL_PATH]/norx/box-disk1.vmdk [FULL_PATH]/norx/clone-box-disk1.vmdk

  It's really important to give it the full path, else it will fail and complain about the disk aleady registered.

• Detach the old disk, and attach the new one to the VM:

  VBoxManage storageattach norx --storagectl "SATA Controller" --port 0 --device 0 --medium none

  VBoxManage closemedium disk box-disk1.vmdk

  VBoxManage storageattach norx --storagectl "SATA Controller" --port 0 --device 0 --type hdd --medium clone-box-disk1.vmdk

• Boot the VM normally via VirtualBox GUI again, in order to fix Vagrant boot hang (invalid network configuration).

  sudo rm -rf /var/lib/dhcp/*

  sudo halt

• Power off the VM

• Vagrant should now be able to boot the newly shrunken disk image normally via vagrant up.