123 lines
4.1 KiB
Markdown
123 lines
4.1 KiB
Markdown
---
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page_title: "Creating a Base Box - VirtualBox Provider"
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sidebar_current: "virtualbox-boxes"
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---
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# Creating a Base Box
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As with [every provider](/v2/providers/basic_usage.html), the VirtualBox
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provider has a custom box format that affects how base boxes are made.
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Prior to reading this, you should read the
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[general guide to creating base boxes](/v2/boxes/base.html). Actually,
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it would probably be most useful to keep this open in a separate tab
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as you may be referencing it frequently while creating a base box. That
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page contains important information about common software to install
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on the box.
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Additionally, it is helpful to understand the
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[basics of the box file format](/v2/boxes/format.html).
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<div class="alert alert-block alert-warn">
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<p>
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<strong>Advanced topic!</strong> This is a reasonably advanced topic that
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a beginning user of Vagrant doesn't need to understand. If you're
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just getting started with Vagrant, skip this and use an available
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box. If you're an experienced user of Vagrant and want to create
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your own custom boxes, this is for you.
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</p>
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</div>
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## Additional Software
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In addition to the software that should be installed based on the
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[general guide to creating base boxes](/v2/boxes/base.html),
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VirtualBox base boxes require some additional software.
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### VirtualBox Guest Additions
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[VirtualBox Guest Additions](http://www.virtualbox.org/manual/ch04.html)
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must be installed so that things such as shared folders can function.
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Installing guest additions also usually improves performance since the guest
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OS can make some optimizations by knowing it is running within VirtualBox.
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Before installing the guest additions, you'll need the linux kernel headers
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and the basic developer tools. On Ubuntu, you can easily install these like
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so:
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```
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$ sudo apt-get install linux-headers-$(uname -r) build-essential
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```
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Next, make sure that the guest additions image is available by using the
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GUI and clicking on "Devices" followed by "Install Guest Additions".
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Then mount the CD-ROM to some location. On Ubuntu, this usually looks like
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this:
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```
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$ sudo mount /dev/cdrom /media/cdrom
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```
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Finally, run the shell script that matches your system to install the
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guest additions. For example, for Linux on x86, it is the following:
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```
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$ sudo sh /media/cdrom/VBoxLinuxAdditions.run
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```
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If you didn’t install a Desktop environment when you installed the operating
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system, as recommended to reduce size, the install of the VirtualBox additions
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should warn you about the lack of OpenGL or Window System Drivers, but you can
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safely ignore this.
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If the command succeeds, then the guest additions are now installed!
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## Packaging the Box
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Vagrant includes a simple way to package VirtualBox base boxes. Once you've
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installed all the software you want to install, you can run this command:
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```
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$ vagrant package --base my-virtual-machine
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```
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Where "my-virtual-machine" is replaced by the name of the virtual machine
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in VirtualBox to package as a base box.
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It will take a few minutes, but after it is complete, a file "package.box"
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should be in your working directory which is the new base box. At this
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point, you've successfully created a base box!
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## Raw Contents
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This section documents the actual raw contents of the box file. This isn't
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as useful when creating a base box but can be useful in debugging issues
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if necessary.
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A VirtualBox base box is an archive of the resulting files of
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[exporting](http://www.virtualbox.org/manual/ch08.html#vboxmanage-export)
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a VirtualBox virtual machine. Here is an example of what is contained
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in such a box:
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```
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$ tree
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.
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|-- Vagrantfile
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|-- box-disk1.vmdk
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|-- box.ovf
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|-- metadata.json
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0 directories, 4 files
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```
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In addition to the files from exporting a VirtualBox VM, there is
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the "metadata.json" file used by Vagrant itself.
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Also, there is a "Vagrantfile." This contains some configuration to
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properly set the MAC address of the NAT network device, since VirtualBox
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requires this to be correct in order to function properly.
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When bringing up a VirtualBox backed machine, Vagrant
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[imports](http://www.virtualbox.org/manual/ch08.html#vboxmanage-import)
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the first "ovf" file found in the box contents.
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