From c70d556f44a095dc4f3849610129e680c0c49207 Mon Sep 17 00:00:00 2001
From: Daniel Barlow <dan@telent.net>
Date: Tue, 4 Oct 2022 23:09:20 +0100
Subject: [PATCH] write combined-image into a directory not $out directly

this makes the tftp workflow a bit easier
---
 default.nix | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/default.nix b/default.nix
index 0c852e4..e159298 100644
--- a/default.nix
+++ b/default.nix
@@ -26,10 +26,10 @@ let
     combined-image = nixpkgs.pkgs.runCommand "firmware.bin" {
       nativeBuildInputs = [ nixpkgs.buildPackages.ubootTools ];
     } ''
-      dd if=${uimage} of=$out bs=128k conv=sync
-      dd if=${squashfs} of=$out bs=128k conv=sync,nocreat,notrunc oflag=append
+      mkdir $out
+      dd if=${uimage} of=$out/firmware.bin bs=128k conv=sync
+      dd if=${squashfs} of=$out/firmware.bin bs=128k conv=sync,nocreat,notrunc oflag=append
     '';
-
     directory = nixpkgs.pkgs.runCommand "both-kinds" {} ''
        mkdir $out
        cd $out