* In nixos-install, do a nix-pull from

http://nixos.org/releases/nixos/nixos-<version> to ensure we're
  getting the right binaries.

svn path=/nixos/trunk/; revision=33738

modules/installer/cd-dvd/installation-cd-base.nix

@@ -44,6 +44,8 @@ in
 
   isoImage.volumeID = "NIXOS_CD_${config.system.nixosVersion}";
 
+  installer.nixosURL = "http://nixos.org/releases/nixos/nixos-${config.system.nixosVersion}";
+
   boot.postBootCommands =
     ''
       export PATH=${pkgs.gnutar}/bin:${pkgs.bzip2}/bin:$PATH

modules/installer/tools/nixos-install.sh

@@ -37,8 +37,8 @@ fi
     
 
 # Do a nix-pull to speed up building.
-if test -n "@nixpkgsURL@" -a ${NIXOS_PULL:-1} != 0; then
-    @nix@/bin/nix-pull @nixpkgsURL@/MANIFEST || true
+if test -n "@nixosURL@" -a ${NIXOS_PULL:-1} != 0; then
+    @nix@/bin/nix-pull @nixosURL@/MANIFEST || true
 fi
 
 

modules/installer/tools/tools.nix

@@ -23,10 +23,10 @@ let
 
     inherit (pkgs) perl pathsFromGraph;
     nix = config.environment.nix;
-    nixpkgsURL = cfg.nixpkgsURL;
+    nixosURL = cfg.nixosURL;
 
     nixClosure = pkgs.runCommand "closure"
-      {exportReferencesGraph = ["refs" config.environment.nix];}
+      { exportReferencesGraph = ["refs" config.environment.nix]; }
       "cp refs $out";
   };
 
@@ -84,9 +84,9 @@ in
 {
   options = {
 
-    installer.nixpkgsURL = pkgs.lib.mkOption {
-      default = "";
-      example = http://nixos.org/releases/nix/nixpkgs-0.11pre7577;
+    installer.nixosURL = pkgs.lib.mkOption {
+      default = http://nixos.org/releases/nixos/channels/nixos-unstable;
+      example = http://nixos.org/releases/nixos/nixos-0.1pre1234;
       description = ''
         URL of the Nixpkgs distribution to use when building the
         installation CD.

modules/profiles/installation-device.nix

@@ -115,10 +115,6 @@ in
     # the full glibcLocales package.
     i18n.supportedLocales = ["en_US.UTF-8/UTF-8" "en_US/ISO-8859-1"];
 
-    # nixos-install will do a pull from this channel to speed up the
-    # installation.
-    installer.nixpkgsURL = http://nixos.org/releases/nixpkgs/channels/nixpkgs-unstable;
-
     boot.postBootCommands =
       ''
         # Provide a mount point for nixos-install.