diff --git a/modules/config/system-path.nix b/modules/config/system-path.nix
index 3969be680980..32e8717cbd1c 100644
--- a/modules/config/system-path.nix
+++ b/modules/config/system-path.nix
@@ -50,7 +50,7 @@ let
       pkgs.sysvtools
       pkgs.time
       pkgs.usbutils
-      pkgs.utillinux
+      pkgs.utillinuxCurses
       extraManpages      
     ];
 
diff --git a/modules/installer/cd-dvd/installation-cd-new-kernel.nix b/modules/installer/cd-dvd/installation-cd-new-kernel.nix
index c7ea5ddfb01b..2c79b68d0a43 100644
--- a/modules/installer/cd-dvd/installation-cd-new-kernel.nix
+++ b/modules/installer/cd-dvd/installation-cd-new-kernel.nix
@@ -3,6 +3,6 @@
 {
   require = [ ./installation-cd-graphical.nix ];
 
-  boot.kernelPackages = pkgs.linuxPackages_3_2;
+  boot.kernelPackages = pkgs.linuxPackages_3_7;
   boot.vesa = false;
 }
diff --git a/modules/installer/cd-dvd/system-tarball-pc-readme.txt b/modules/installer/cd-dvd/system-tarball-pc-readme.txt
index c4a0a111cd3a..8f0a8d355c6e 100644
--- a/modules/installer/cd-dvd/system-tarball-pc-readme.txt
+++ b/modules/installer/cd-dvd/system-tarball-pc-readme.txt
@@ -80,7 +80,7 @@ had booted this nixos. Run:
 *  `grep local-cmds run/current-system/init`
 
 Then you can proceed normally subscribing to a nixos channel:
-  nix-channel --add http://nixos.org/releases/nixos/channels/nixos-unstable
+  nix-channel --add http://nixos.org/channels/nixos-unstable
   nix-channel --update
 
 Testing:
diff --git a/modules/system/boot/loader/grub/grub.nix b/modules/system/boot/loader/grub/grub.nix
index 70cfc87220cf..490502c5a360 100644
--- a/modules/system/boot/loader/grub/grub.nix
+++ b/modules/system/boot/loader/grub/grub.nix
@@ -13,10 +13,11 @@ let
   grubConfig = pkgs.writeText "grub-config.xml" (builtins.toXML
     { splashImage = f config.boot.loader.grub.splashImage;
       grub = f grub;
+      shell = "${pkgs.stdenv.shell}";
       fullVersion = (builtins.parseDrvName config.system.build.grub.name).version;
       inherit (config.boot.loader.grub)
         version extraConfig extraPerEntryConfig extraEntries
-        extraEntriesBeforeNixOS configurationLimit copyKernels timeout
+        extraEntriesBeforeNixOS extraPrepareConfig configurationLimit copyKernels timeout
         default devices;
       path = makeSearchPath "bin" [ pkgs.coreutils pkgs.gnused pkgs.gnugrep pkgs.findutils pkgs.diffutils ];
     });
diff --git a/modules/system/boot/loader/grub/install-grub.pl b/modules/system/boot/loader/grub/install-grub.pl
index 1d1958a8fe6a..f06527aaaec2 100644
--- a/modules/system/boot/loader/grub/install-grub.pl
+++ b/modules/system/boot/loader/grub/install-grub.pl
@@ -30,6 +30,7 @@ sub writeFile {
 my $grub = get("grub");
 my $grubVersion = int(get("version"));
 my $extraConfig = get("extraConfig");
+my $extraPrepareConfig = get("extraPrepareConfig");
 my $extraPerEntryConfig = get("extraPerEntryConfig");
 my $extraEntries = get("extraEntries");
 my $extraEntriesBeforeNixOS = get("extraEntriesBeforeNixOS") eq "true";
@@ -189,6 +190,8 @@ addEntry("NixOS - Default", $defaultConfig);
 
 $conf .= "$extraEntries\n" unless $extraEntriesBeforeNixOS;
 
+# extraEntries could refer to @bootRoot@, which we have to substitute
+$conf =~ s/\@bootRoot\@/$bootRoot/g;
 
 # Add entries for all previous generations of the system profile.
 $conf .= "submenu \"NixOS - Old configurations\" {\n" if $grubVersion == 2;
@@ -212,6 +215,10 @@ foreach my $link (@links) {
 
 $conf .= "}\n" if $grubVersion == 2;
 
+# Run extraPrepareConfig in sh
+if ($extraPrepareConfig ne "") {
+  system((get("shell"), "-c", $extraPrepareConfig));
+}
 
 # Atomically update the GRUB config.
 my $confFile = $grubVersion == 1 ? "/boot/grub/menu.lst" : "/boot/grub/grub.cfg";
diff --git a/modules/system/boot/loader/grub/memtest.nix b/modules/system/boot/loader/grub/memtest.nix
index 08eb8a1f41cb..4bd4b69101c9 100644
--- a/modules/system/boot/loader/grub/memtest.nix
+++ b/modules/system/boot/loader/grub/memtest.nix
@@ -22,17 +22,17 @@ in
     extraEntries = if config.boot.loader.grub.version == 2 then
       ''
         menuentry "${memtest86.name}" {
-          linux16 $bootRoot/memtest.bin
+          linux16 @bootRoot@/memtest.bin
         }
       ''
       else
       ''
         menuentry "${memtest86.name}"
-          linux16 $bootRoot/memtest.bin
+          linux16 @bootRoot@/memtest.bin
       '';
     extraPrepareConfig =
       ''
-        cp ${memtest86}/memtest.bin /boot/memtest.bin;
+        ${pkgs.coreutils}/bin/cp ${memtest86}/memtest.bin /boot/memtest.bin;
       '';
   };
 }
diff --git a/modules/virtualisation/qemu-vm.nix b/modules/virtualisation/qemu-vm.nix
index 0367379b2444..b35b311819a8 100644
--- a/modules/virtualisation/qemu-vm.nix
+++ b/modules/virtualisation/qemu-vm.nix
@@ -166,6 +166,7 @@ let
       ${pkgs.vmTools.startSamba}
 
       # Start QEMU.
+      # "-boot menu=on" is there, because I don't know how to make qemu boot from 2nd hd.
       exec ${pkgs.qemu_kvm}/bin/qemu-kvm \
           -name ${vmName} \
           -m ${toString config.virtualisation.memorySize} \
@@ -174,8 +175,9 @@ let
           -chardev socket,id=samba,path=./samba \
           -net user,vlan=0,guestfwd=tcp:10.0.2.4:445-chardev:samba''${QEMU_NET_OPTS:+,$QEMU_NET_OPTS} \
           ${if cfg.useBootLoader then ''
-            -drive index=0,file=$NIX_DISK_IMAGE,if=virtio,cache=writeback,werror=report \
-            -drive index=1,file=${bootDisk}/disk.img,if=virtio,boot=on,readonly \
+            -drive index=0,id=drive1,file=$NIX_DISK_IMAGE,if=virtio,cache=writeback,werror=report \
+            -drive index=1,id=drive2,file=${bootDisk}/disk.img,if=virtio,readonly \
+            -boot menu=on
           '' else ''
             -drive file=$NIX_DISK_IMAGE,if=virtio,cache=writeback,werror=report \
             -kernel ${config.system.build.toplevel}/kernel \