Fix fixupPhase overwrite

vmtools/flake.nix

@@ -7,7 +7,9 @@
   outputs = { self, flake-utils, nixpkgs }:
   flake-utils.lib.eachDefaultSystem (system: 
   let
-    triton-vmtools = import ./pkgs/triton-vmtools.nix { pkgs = import nixpkgs { inherit system; }; };
+    pkgs = import nixpkgs { inherit system; };
+
+    triton-vmtools = import ./pkgs/triton-vmtools.nix { inherit pkgs; };
   in
   {
 

vmtools/pkgs/triton-vmtools.nix

@@ -23,7 +23,19 @@ stdenv.mkDerivation rec {
     parted
   ];
 
-  fixupPhase = ''
+  patches = [
+    ./0001-fix-paths-in-scripts.patch
+  ];
+
+  installPhase = ''
+    sdcvmtools="src/linux"
+    mkdir -p $out/bin $out/lib $out/share/man/man1
+    cp -r ''${sdcvmtools}/lib/smartdc $out/lib/
+    cp -r ''${sdcvmtools}/usr/sbin/mdata-* $out/bin/
+    cp -r ''${sdcvmtools}/usr/share/man/man1/mdata-* $out/share/man/man1/
+  '';
+
+  preFixup = ''
     for file in $out/lib/smartdc/*
     do
       substituteInPlace ''$file \
@@ -36,20 +48,6 @@ stdenv.mkDerivation rec {
           --replace "/usr/sbin/" "$out/bin/"
   '';
 
-  patches = [
-    ./0001-fix-paths-in-scripts.patch
-  ];
-
-  installPhase = ''
-    echo "Installing SmartOS VM Guest Tools..."
-    sdcvmtools="src/linux"
-    mkdir -p $out/bin $out/lib $out/share/man/man1
-    cp -r ''${sdcvmtools}/lib/smartdc $out/lib/
-    cp -r ''${sdcvmtools}/usr/sbin/mdata-* $out/bin/
-    cp -r ''${sdcvmtools}/usr/share/man/man1/mdata-* $out/share/man/man1/
-    echo "SmartOS VM Guest Tools installed"
-  '';
-
   meta = with lib; {
     description = "The VM Guest tools contains scripts and drivers that are used to create virtualized machine images in SmartOS.";
     homepage = "https://github.com/TritonDataCenter/sdc-vmtools";