nixpkgs-suyu/nixos/doc/manual/from_md/development/testing-installer.chapter.xml

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<chapter xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="ch-testing-installer">
<title>Testing the Installer</title>
<para>
Building, burning, and booting from an installation CD is rather
tedious, so here is a quick way to see if the installer works
properly:
</para>
<programlisting>
# mount -t tmpfs none /mnt
# nixos-generate-config --root /mnt
$ nix-build '&lt;nixpkgs/nixos&gt;' -A config.system.build.nixos-install
# ./result/bin/nixos-install
</programlisting>
<para>
To start a login shell in the new NixOS installation in
<literal>/mnt</literal>:
</para>
<programlisting>
$ nix-build '&lt;nixpkgs/nixos&gt;' -A config.system.build.nixos-enter
# ./result/bin/nixos-enter
</programlisting>
</chapter>