{ stdenv, fetchurl, libarchive, iucode-tool }: stdenv.mkDerivation rec { name = "microcode-intel-${version}"; version = "20180807a"; src = fetchurl { url = "https://downloadmirror.intel.com/28087/eng/microcode-${version}.tgz"; sha256 = "0dw1akgzdqk95pwmc8gfdmv7kabw9pn4c67f076bcbn4krliias6"; }; nativeBuildInputs = [ iucode-tool libarchive ]; sourceRoot = "."; installPhase = '' runHook preInstall mkdir -p $out kernel/x86/microcode iucode_tool -w kernel/x86/microcode/GenuineIntel.bin intel-ucode/ echo kernel/x86/microcode/GenuineIntel.bin | bsdcpio -o -H newc -R 0:0 > $out/intel-ucode.img runHook postInstall ''; meta = with stdenv.lib; { homepage = http://www.intel.com/; description = "Microcode for Intel processors"; license = licenses.unfreeRedistributableFirmware; platforms = platforms.linux; }; }