Commit d9105c28 authored by Alyssa Ross's avatar Alyssa Ross
Browse files

nixos/stage-1: create initramfs /lib at build time 

Modules built in to the kernel can attempt to load firmware before
init is started.  To guarantee the firmware is accessible to them
where they expect, /lib has to exist in the initramfs — it can't be
created later by init, because by that point the module may already
have tried and given up.
parent e55c73a6

nixos/modules/system/boot/stage-1-init.sh

+0 −3
Original line number Diff line number Diff line
@@ -253,9 +253,6 @@ done 
@setHostId@



# Load the required kernel modules.

mkdir -p /lib

ln -s @modulesClosure@/lib/modules /lib/modules

ln -s @modulesClosure@/lib/firmware /lib/firmware

echo @extraUtils@/bin/modprobe > /proc/sys/kernel/modprobe

for i in @kernelModules@; do

    info "loading module $(basename $i)..."

nixos/modules/system/boot/stage-1.nix

+4 −1
Original line number Diff line number Diff line
@@ -307,7 +307,7 @@ let 
      ${pkgs.buildPackages.busybox}/bin/ash -n $target

    '';



    inherit linkUnits udevRules extraUtils modulesClosure;

    inherit linkUnits udevRules extraUtils;



    inherit (config.boot) resumeDevice;
@@ -349,6 +349,9 @@ let 
      [ { object = bootStage1;

          symlink = "/init";

        }

        { object = "${modulesClosure}/lib";

          symlink = "/lib";

        }

        { object = pkgs.runCommand "initrd-kmod-blacklist-ubuntu" {

              src = "${pkgs.kmod-blacklist-ubuntu}/modprobe.conf";

              preferLocalBuild = true;