fix bordervm in hydra

bordervm-configuration.nix

@@ -35,7 +35,6 @@ in {
   };
   imports = [
     <nixpkgs/nixos/modules/virtualisation/qemu-vm.nix>
-    ./bordervm.conf.nix
   ];
   config = {
     boot.kernelParams = [

ci.nix

@@ -6,12 +6,13 @@
 let
   inherit (builtins) map;
   pkgs = (import nixpkgs {});
+  borderVmConf =  ./bordervm.conf-example.nix;
   inherit (pkgs.lib.attrsets) genAttrs;
   devices = [ "qemu" "gl-ar750" "gl-mt300n-v2" "gl-mt300a" ];
   vanilla = ./vanilla-configuration.nix;
   for-device = name:
     (import liminix {
-      inherit nixpkgs;
+      inherit nixpkgs borderVmConf;
       device = import (liminix + "/devices/${name}");
       liminix-config = vanilla;
     }).outputs.default;
@@ -19,12 +20,13 @@ let
   jobs =
     (genAttrs devices (name: for-device name)) // tests // {
       buildEnv = (import liminix {
-        inherit nixpkgs;
+        inherit nixpkgs  borderVmConf;
         device = import (liminix + "/devices/qemu");
         liminix-config = vanilla;
       }).buildEnv;
       with-unstable = (import liminix {
         nixpkgs = unstable;
+        inherit borderVmConf;
         device = import (liminix + "/devices/qemu");
         liminix-config = vanilla;
       }).outputs.default;

default.nix

@@ -2,13 +2,19 @@
   device
 , liminix-config ? <liminix-config>
 , nixpkgs ? <nixpkgs>
+, borderVmConf ? ./bordervm.conf.nix
 }:
 
 let
   overlay = import ./overlay.nix;
   pkgs = import nixpkgs (device.system // {
     overlays = [overlay];
-    config = {allowUnsupportedSystem = true; };
+    config = {
+      allowUnsupportedSystem = true; # mipsel
+      permittedInsecurePackages = [
+        "python-2.7.18.6"       # kernel backports needs python <3
+      ];
+    };
   });
 
   config = (pkgs.lib.evalModules {
@@ -28,6 +34,7 @@ let
     modules = [
       ({  ... } : { nixpkgs.overlays = [ overlay ]; })
       (import ./bordervm-configuration.nix)
+      borderVmConf
     ];
   }).config.system;
 in {