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+<section xmlns="http://docbook.org/ns/docbook"
+         xmlns:xlink="http://www.w3.org/1999/xlink"
+         xmlns:xi="http://www.w3.org/2001/XInclude"
+         version="5.0"
+         xml:id="sec-instaling-virtualbox-guest">
+ <title>Installing in a VirtualBox guest</title>
+
+ <para>
+  Installing NixOS into a VirtualBox guest is convenient for users who want to
+  try NixOS without installing it on bare metal. If you want to use a pre-made
+  VirtualBox appliance, it is available at
+  <link
+  xlink:href="https://nixos.org/nixos/download.html">the downloads
+  page</link>. If you want to set up a VirtualBox guest manually, follow these
+  instructions:
+ </para>
+
+ <orderedlist>
+  <listitem>
+   <para>
+    Add a New Machine in VirtualBox with OS Type "Linux / Other Linux"
+   </para>
+  </listitem>
+  <listitem>
+   <para>
+    Base Memory Size: 768 MB or higher.
+   </para>
+  </listitem>
+  <listitem>
+   <para>
+    New Hard Disk of 8 GB or higher.
+   </para>
+  </listitem>
+  <listitem>
+   <para>
+    Mount the CD-ROM with the NixOS ISO (by clicking on CD/DVD-ROM)
+   </para>
+  </listitem>
+  <listitem>
+   <para>
+    Click on Settings / System / Processor and enable PAE/NX
+   </para>
+  </listitem>
+  <listitem>
+   <para>
+    Click on Settings / System / Acceleration and enable "VT-x/AMD-V"
+    acceleration
+   </para>
+  </listitem>
+  <listitem>
+   <para>
+    Save the settings, start the virtual machine, and continue installation
+    like normal
+   </para>
+  </listitem>
+ </orderedlist>
+
+ <para>
+  There are a few modifications you should make in configuration.nix. Enable
+  booting:
+ </para>
+
+<programlisting>
+<xref linkend="opt-boot.loader.grub.device"/> = "/dev/sda";
+</programlisting>
+
+ <para>
+  Also remove the fsck that runs at startup. It will always fail to run,
+  stopping your boot until you press <literal>*</literal>.
+ </para>
+
+<programlisting>
+<xref linkend="opt-boot.initrd.checkJournalingFS"/> = false;
+</programlisting>
+
+ <para>
+  Shared folders can be given a name and a path in the host system in the
+  VirtualBox settings (Machine / Settings / Shared Folders, then click on the
+  "Add" icon). Add the following to the
+  <literal>/etc/nixos/configuration.nix</literal> to auto-mount them. If you do
+  not add <literal>"nofail"</literal>, the system will no boot properly. The
+  same goes for disabling <literal>rngd</literal> which is normally used to get
+  randomness but this does not work in virtual machines.
+ </para>
+
+<programlisting>
+{ config, pkgs, ...} :
+{
+  security.rngd.enable = false; // otherwise vm will not boot
+  ...
+
+  fileSystems."/virtualboxshare" = {
+    fsType = "vboxsf";
+    device = "nameofthesharedfolder";
+    options = [ "rw" "nofail" ];
+  };
+}
+</programlisting>
+
+ <para>
+  The folder will be available directly under the root directory.
+ </para>
+</section>