* The loopback device is in a module now. Since it's not

automatically loaded by the kernel, load it at boot time.
* Put the ext2 module (which used to be built in) in the initrd to
  prevent unexpected breakage.

svn path=/nixos/trunk/; revision=18963

modules/system/boot/kernel.nix

@@ -98,7 +98,7 @@ let
             "ide_generic"
             
             # Filesystems.
-            "ext3"
+            "ext2" "ext3"
             
             # Support USB keyboards, in case the boot fails and we only have
             # a USB keyboard.
@@ -171,6 +171,8 @@ in
   system.build = { inherit kernel; };
   system.modulesTree = [ kernel ] ++ config.boot.extraModulePackages;
 
+  boot.kernelModules = [ "loop" ];
+
   # The Linux kernel >= 2.6.27 provides firmware.
   hardware.firmware = [ "${kernel}/lib/firmware" ];
 }