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nixos/pixiecore: fix escaping of cmdline #87664

merged 1 commit into from May 12, 2020


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betaboon commented May 12, 2020

Motivation for this change

I wanted to boot qemu-machines using pixieboot but it failed.
turns out: the cmdline was escaped badly.

using the following configuration i can now boot a qemu-vm from network:

{ pkgs, lib, config, ... }:

  services.pixiecore = let
    nixos = import <nixpkgs/nixos> {
      configuration = { config, pkgs, lib, ... }: with lib; {
        imports = [
    build =;
  in {
    enable = true;
    debug = true;
    openFirewall = true;
    dhcpNoBind = true;
    kernel = "${build.kernel}/bzImage";
    initrd = "${toString build.netbootRamdisk}/initrd";
    cmdLine = "init=${build.toplevel}/init ${lib.concatStringsSep " " nixos.config.boot.kernelParams}";

Things done

Fix double-escaping of cmdline.

  • Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
  • Built on platform(s)
    • NixOS
    • macOS
    • other Linux distributions
  • Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
  • Tested compilation of all pkgs that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review wip"
  • Tested execution of all binary files (usually in ./result/bin/)
  • Determined the impact on package closure size (by running nix path-info -S before and after)
  • Ensured that relevant documentation is up to date
  • Fits

fyi @Mic92

@Mic92 Mic92 merged commit c643f6e into NixOS:master May 12, 2020
1 check was pending
1 check was pending
grahamcofborg-eval Checking new out paths
@betaboon betaboon deleted the betaboon:nixos-pixiecore-fix-escaping branch May 12, 2020
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