diff --git a/nixos/release.nix b/nixos/release.nix
index dfc28173f1a3..ca8aa341b4a7 100644
--- a/nixos/release.nix
+++ b/nixos/release.nix
@@ -206,10 +206,12 @@ in rec {
   # boot that system from uboot (like for the sheevaplug).
   # The pc variant helps preparing the expression for the system tarball
   # in a machine faster than the sheevpalug
+  /*
   system_tarball_pc = forAllSystems (system: makeSystemTarball {
     module = ./modules/installer/cd-dvd/system-tarball-pc.nix;
     inherit system;
   });
+  */
 
   # Provide container tarball for lxc, libvirt-lxc, docker-lxc, ...
   containerTarball = forAllSystems (system: makeSystemTarball {
diff --git a/pkgs/top-level/release-cross.nix b/pkgs/top-level/release-cross.nix
index cef3d2dffbdb..ced90c0489ca 100644
--- a/pkgs/top-level/release-cross.nix
+++ b/pkgs/top-level/release-cross.nix
@@ -16,7 +16,6 @@ let
       #xorgserver.crossDrv = nativePlatforms;
     };
     nixUnstable.crossDrv = nativePlatforms;
-    linuxPackages_3_4.kernel.crossDrv = linux;
   };
 
   /* Basic list of packages to be natively built,