A sample of Vagrantfile in construction

prompt.txt

Copy iso file /usr/share/virtualbox/VBoxGuestAdditions.iso into the box /tmp/VBoxGuestAdditions.iso
mount: /dev/loop0 is write-protected, mounting read-only
Installing Virtualbox Guest Additions 4.3.30 - guest version is 
Verifying archive integrity... All good.
Uncompressing VirtualBox 4.3.30 Guest Additions for Linux............
VirtualBox Guest Additions installer
Please install the bzip2 utility.
Copying additional installer modules ...
./install.sh: line 344: bzip2: command not found
tar: This does not look like a tar archive
tar: Exiting with failure status due to previous errors
./install.sh: line 357: bzip2: command not found
tar: This does not look like a tar archive
tar: Exiting with failure status due to previous errors
An error occurred during installation of VirtualBox Guest Additions 4.3.30. Some functionality may not work as intended.
In most cases it is OK that the "Window System drivers" installation failed.
==> default: Checking for guest additions in VM...
    default: No guest additions were detected on the base box for this VM! Guest
    default: additions are required for forwarded ports, shared folders, host only
    default: networking, and more. If SSH fails on this machine, please install
    default: the guest additions and repackage the box to continue.
    default: 
    default: This is not an error message; everything may continue to work properly,
    default: in which case you may ignore this message.
==> default: Configuring and enabling network interfaces...
==> default: Installing rsync to the VM...
==> default: Rsyncing folder: /home/hcantv/Envs/vagrants/silly/ => /home/vagrant/sync
==> default: Installing NFS client...
==> default: Exporting NFS shared folders...
==> default: Preparing to edit /etc/exports. Administrator privileges will be required...
nfsd running
==> default: Mounting NFS shared folders...

Vagrantfile

VAGRANTFILE_API_VERSION = "2"

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|

  config.vm.box = "official/centos7"
  config.vm.box_url = "https://atlas.hashicorp.com/centos/boxes/7/versions/1505.01/providers/virtualbox.box"

  # NETWORK
  config.vm.network "private_network", ip: "192.168.56.102"
  # Explictly set IP
  config.vm.network "forwarded_port", guest: 80, host: 8080

  # SYNCED FOLDERS
  config.vm.synced_folder ".", "/vagrant", nfs: true  
  config.vm.synced_folder "../../dockers/nginx", "/vagrant/dockers/nginx/", nfs:true
end

The prompt captured is after dependency installation