diff --git a/configuration/rescue-cd.nix b/configuration/rescue-cd.nix
index 72d3bcad380..e580343baad 100644
--- a/configuration/rescue-cd.nix
+++ b/configuration/rescue-cd.nix
@@ -1,7 +1,7 @@
 rec {
 
   
-  nixpkgsRel = "nixpkgs-0.11pre7628";
+  nixpkgsRel = "nixpkgs-0.11pre7785";
 
 
   configuration = {
@@ -106,7 +106,7 @@ rec {
   # Get a recent copy of Nixpkgs.
   nixpkgsTarball = pkgs.fetchurl {
     url = configuration.installer.nixpkgsURL + "/" + nixpkgsRel + ".tar.bz2";
-    md5 = "e7fe1793e69ff5072eb5987e7b7ccd47";
+    md5 = "0f554f092d94cc2cb7fe1e5c09f26adc";
   };
 
 
diff --git a/installer/nixos-installer.sh b/installer/nixos-installer.sh
index 0032cce3507..ac62d81bd13 100644
--- a/installer/nixos-installer.sh
+++ b/installer/nixos-installer.sh
@@ -20,7 +20,7 @@ nixosDir="$2"
 configuration="$3"
 
 if test -z "$mountPoint" -o -z "$nixosDir" -o -z "$configuration"; then
-    echo "Syntax: installer.sh <targetRootDir> <nixosDir> <configuration>"
+    echo "Syntax: nixos-installer.sh <targetRootDir> <nixosDir> <configuration>"
     exit 1
 fi
 
@@ -117,7 +117,7 @@ cp /etc/resolv.conf $mountPoint/etc/
 # the CD can be copied directly.
 echo "registering substitutes to speed up builds..."
 chroot $mountPoint @nix@/bin/nix-store --clear-substitutes
-chroot $mountPoint @nix@/bin/nix-pull /mnt/MANIFEST
+chroot $mountPoint @nix@/bin/nix-pull file:///mnt/MANIFEST
 rm -f $mountPoint/tmp/inst-store
 ln -s /mnt/nix/store $mountPoint/tmp/inst-store
 
diff --git a/upstart-jobs/swraid.nix b/upstart-jobs/swraid.nix
index f62bccbf967..3a3328eb1f0 100644
--- a/upstart-jobs/swraid.nix
+++ b/upstart-jobs/swraid.nix
@@ -2,7 +2,7 @@
 
 let
 
-  tempConf = "/var/state/mdadm.conf";
+  tempConf = "/var/run/mdadm.conf";
 
 in