nixpkgs/nixos/doc/manual/development/testing-installer.xml
Eelco Dolstra e88f28965a
nixos-install: Make compatible with Nix 2.0
The use of Nix 2.0 significantly simplifies the installer, since we
can just pass a different store URI (--store /mnt) - it's no longer
needed to set up a chroot environment for the build, and to bootstrap
Nix into the chroot.

Also, commands that need to run in the installation (namely boot
loader installation and setting a root password) are now executed
using nixos-enter.

This also removes the need for nixos-prepare-root since any required
initialisation is done by Nix or by the activation script.
2018-02-05 19:50:36 +01:00

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XML

<chapter 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="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:
<screen>
# mount -t tmpfs none /mnt
# nixos-generate-config --root /mnt
$ nix-build '&lt;nixpkgs/nixos>' -A config.system.build.nixos-install
# ./result/bin/nixos-install</screen>
To start a login shell in the new NixOS installation in
<filename>/mnt</filename>:
<screen>
$ nix-build '&lt;nixpkgs/nixos>' -A config.system.build.nixos-enter
# ./result/bin/nixos-enter
</screen>
</para>
</chapter>