Creating a NixOS live CD: Difference between revisions

imported>Makefu
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imported>Makefu
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* it is easy to add your own programs to the image
* it is easy to add your own programs to the image


== how to build such an image ==
== how to build your own image ==
we will use the NIXREPOS variable, which points to the nixpkgs/nixos checkouts, see [[Create and debug nix packages]]


just run this command (for 64 bit):
Create a file "iso.nix":
export NIX_PATH=$NIXREPOS
nix-build -A iso_graphical.x86_64-linux $NIXREPOS/nixos/release.nix


for 32 bit:
export NIX_PATH=$NIXREPOS
nix-build -A iso_graphical.i686-linux $NIXREPOS/nixos/release.nix
once the building process is over, you should see multiple nix distributions built (for multiple archs). See contents to find iso image path:
$ cat /nix/store/2y4bivmrzg4d2dgby2b7prvfj7445088-nixos-iso-0.1pre1234/nix-support/hydra-build-products
file iso /nix/store/94rrfklbk2hcqhkr4627vsrlprlyva50-iso9660-image/iso/nixos-minimal-0.1pre1234-i686-linux-test.iso
and copy the new image from there to your USB drive (or use unetbootin).
== adding additional software to the image ==
the basic script '''/etc/nixos/nixos/release.nix''' contains several entry points for custom images. as we are using '''-A iso_minimal''' have a look at: iso_minimal which will redirect us to:
* ./modules/installer/cd-dvd/installation-cd-minimal.nix -> /etc/nixos/nixos/modules/installer/cd-dvd/installation-cd-minimal.nix
  # This module defines a small NixOS installation CD.  It does not
  # This module defines a small NixOS installation CD.  It does not
  # contain any graphical stuff.
  # contain any graphical stuff.
  {config, pkgs, ...}:
  {config, pkgs, ...}:
  {
  {
   require = [
   imports = [
    ./installation-cd-base.nix
      <nixpkgs/nixos/modules/installer/cd-dvd/installation-cd-minimal.nix>
    ../../profiles/minimal.nix
      <nixpkgs/nixos/modules/installer/cd-dvd/channel.nix>
   ];
   ];
  }
  }
Build the image via:
  nix-build -A config.system.build.isoImage -I nixos-config=iso.nix  /path/to/nixpkgs/nixos


=== Start SSH with your SSH key
=== Start SSH with your SSH key


In your configuration.nix:
In your iso.nix:


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