nixos/iso-image.nix: add top-level /version.txt file

This makes it easy to identify which NixOS version is written to an USB stick without actually booting it.
2017-09-26 22:17:01 +02:00 · 2017-09-26 22:17:01 +02:00 · 3c6eb3a247
commit 3c6eb3a247
parent 7cbf3a27de
1 changed files with 3 additions and 0 deletions
--- a/nixos/modules/installer/cd-dvd/iso-image.nix
+++ b/nixos/modules/installer/cd-dvd/iso-image.nix
@ -361,6 +361,9 @@ in
        { source = config.isoImage.splashImage;
          target = "/isolinux/background.png";
        }
+        { source = pkgs.writeText "version" config.system.nixosVersion;
+          target = "/version.txt";
+        }
      ] ++ optionals config.isoImage.makeEfiBootable [
        { source = efiImg;
          target = "/boot/efi.img";