diff --git a/init/default.nix b/init/default.nix
index 48c27469ee8..9657101ac03 100644
--- a/init/default.nix
+++ b/init/default.nix
@@ -5,7 +5,7 @@ derivation {
   system = stdenv.system;
   builder = ./builder.sh;
   stage1 = ./prepare-disk.sh;
-  stage2 = ./fill-disk.sh;
+  stage2 = ./install-disk.sh;
   inherit stdenv bash coreutils utillinux e2fsprogs nix shadowutils
           mingetty grub parted;
 }
diff --git a/init/fill-disk.sh b/init/install-disk.sh
similarity index 74%
rename from init/fill-disk.sh
rename to init/install-disk.sh
index c6717945815..9e18719f208 100755
--- a/init/fill-disk.sh
+++ b/init/install-disk.sh
@@ -5,65 +5,6 @@ export PATH=@bash@/bin:@coreutils@/bin:@findutils@/bin:@utillinux@/bin:@utillinu
 sysvinitPath=@sysvinitPath@
 bootPath=@bootPath@
 
-mount -t proc proc /proc
-mount -t sysfs sys /sys
-
-#mount -t /dev/hdc /installimage
-
-# make a complete /dev filesystem
-# ripped permissions and everything from anaconda (loader2/devices.h)
-
-# consoles
-
-#mknod -m 0600 /dev/console c 5 1
-mknod -m 0600 /dev/ttyS0 c 4 64
-mknod -m 0600 /dev/ttyS1 c 4 65
-mknod -m 0600 /dev/ttyS2 c 4 66
-mknod -m 0600 /dev/ttyS3 c 4 67
-
-# base UNIX devices
-mknod -m 0600 /dev/mem c 1 1
-mknod -m 0666 /dev/null c 1 3
-mknod -m 0666 /dev/zero c 1 5
-
-# tty
-mknod -m 0600 /dev/tty c 5 0
-mknod -m 0600 /dev/tty0 c 4 0
-mknod -m 0600 /dev/tty1 c 4 1
-mknod -m 0600 /dev/tty2 c 4 2
-mknod -m 0600 /dev/tty3 c 4 3
-mknod -m 0600 /dev/tty4 c 4 4
-mknod -m 0600 /dev/tty5 c 4 5
-mknod -m 0600 /dev/tty6 c 4 6
-mknod -m 0600 /dev/tty7 c 4 7
-mknod -m 0600 /dev/tty8 c 4 8
-mknod -m 0600 /dev/tty9 c 4 9
-
-mkdir -m 0755 /dev/pts
-mknod -m 0666 /dev/ptmx c 5 2
-
-# random
-
-mknod -m 0644 /dev/random c 1 8
-mknod -m 0644 /dev/urandom c 1 9
-
-mknod -m 0660 /dev/hda b 3 0
-mknod -m 0660 /dev/hda1 b 3 1
-mknod -m 0660 /dev/hda2 b 3 2
-mknod -m 0660 /dev/hda3 b 3 3
-
-#mknod -m 0660 /dev/sda b 8 0
-#mknod -m 0660 /dev/sda1 b 8 1
-#mknod -m 0660 /dev/sda2 b 8 2
-#mknod -m 0660 /dev/sda3 b 8 3
-
-echo "dev"
-cd /dev; echo *
-
-mkfs.ext2 /dev/hda1
-mkswap /dev/hda2
-
-
 #if ! test -n "$1"
 #then
 #    echo "need harddisk device for installing!"
@@ -146,10 +87,6 @@ rm -f $root/etc/mtab
 
 cat /proc/mounts
 
-## Probe for CD device which contains our CD here and mount /nix and
-## /nixpkgs from it inside the ramdisk. Anaconda uses kudzu for this.
-## Find out how Knoppix and SUSE do this...
-
 export NIX_DATA_DIR=$root/nix/share
 export NIX_LOG_DIR=$root/nix/log/nix
 export NIX_STATE_DIR=$root/nix/var/nix
diff --git a/init/prepare-disk.sh b/init/prepare-disk.sh
new file mode 100755
index 00000000000..3e0c845de83
--- /dev/null
+++ b/init/prepare-disk.sh
@@ -0,0 +1,68 @@
+#! @bash@/bin/sh -e
+
+export PATH=@bash@/bin:@coreutils@/bin:@findutils@/bin:@utillinux@/bin:@utillinux@/sbin:@e2fsprogs@/sbin
+
+sysvinitPath=@sysvinitPath@
+bootPath=@bootPath@
+
+mount -t proc proc /proc
+mount -t sysfs sys /sys
+
+#mount -t /dev/hdc /installimage
+
+# make a complete /dev filesystem
+# ripped permissions and everything from anaconda (loader2/devices.h)
+
+# consoles
+
+#mknod -m 0600 /dev/console c 5 1
+mknod -m 0600 /dev/ttyS0 c 4 64
+mknod -m 0600 /dev/ttyS1 c 4 65
+mknod -m 0600 /dev/ttyS2 c 4 66
+mknod -m 0600 /dev/ttyS3 c 4 67
+
+# base UNIX devices
+mknod -m 0600 /dev/mem c 1 1
+mknod -m 0666 /dev/null c 1 3
+mknod -m 0666 /dev/zero c 1 5
+
+# tty
+mknod -m 0600 /dev/tty c 5 0
+mknod -m 0600 /dev/tty0 c 4 0
+mknod -m 0600 /dev/tty1 c 4 1
+mknod -m 0600 /dev/tty2 c 4 2
+mknod -m 0600 /dev/tty3 c 4 3
+mknod -m 0600 /dev/tty4 c 4 4
+mknod -m 0600 /dev/tty5 c 4 5
+mknod -m 0600 /dev/tty6 c 4 6
+mknod -m 0600 /dev/tty7 c 4 7
+mknod -m 0600 /dev/tty8 c 4 8
+mknod -m 0600 /dev/tty9 c 4 9
+
+mkdir -m 0755 /dev/pts
+mknod -m 0666 /dev/ptmx c 5 2
+
+# random
+
+mknod -m 0644 /dev/random c 1 8
+mknod -m 0644 /dev/urandom c 1 9
+
+mknod -m 0660 /dev/hda b 3 0
+mknod -m 0660 /dev/hda1 b 3 1
+mknod -m 0660 /dev/hda2 b 3 2
+mknod -m 0660 /dev/hda3 b 3 3
+
+#mknod -m 0660 /dev/sda b 8 0
+#mknod -m 0660 /dev/sda1 b 8 1
+#mknod -m 0660 /dev/sda2 b 8 2
+#mknod -m 0660 /dev/sda3 b 8 3
+
+echo "dev"
+cd /dev; echo *
+
+mkfs.ext2 /dev/hda1
+mkswap /dev/hda2
+
+## Probe for CD device which contains our CD here and mount /nix and
+## /nixpkgs from it inside the ramdisk. Anaconda uses kudzu for this.
+## Find out how Knoppix and SUSE do this...