anchor.diff:    ];
   
   
  +  # Ubuntu 9.10 no longer has sysvinit.
  +  karmicPackages = lib.filter (x: x != "sysvinit") commonDebianPackages;
  +
  +
     /* A bunch of disk images. */
   
     diskImages = {
  
positive.code:     ubuntu810x86_64 = extraVirtualPackages : diskImageFuns.ubuntu810x86_64 { packages = commonDebianPackages ++ extraVirtualPackages; };
      ubuntu904i386 = extraVirtualPackages : diskImageFuns.ubuntu904i386 { packages = commonDebianPackages ++ extraVirtualPackages; };
      ubuntu904x86_64 = extraVirtualPackages : diskImageFuns.ubuntu904x86_64 { packages = commonDebianPackages ++ extraVirtualPackages; };
      debian40i386 = extraVirtualPackages : diskImageFuns.debian40i386 { packages = commonDebianPackages ++ extraVirtualPackages; };
      debian40x86_64 = extraVirtualPackages : diskImageFuns.debian40x86_64 { packages = commonDebianPackages ++ extraVirtualPackages; };
      debian50i386 = extraVirtualPackages : diskImageFuns.debian50i386 { packages = commonDebianPackages ++ extraVirtualPackages; };
  
negative.code:       packagesList = fetchurl {
          url = mirror://ubuntu/dists/jaunty/main/binary-amd64/Packages.bz2;
          sha256 = "af760ce04e43f066b8938b1abdeff979a642f940515659ede44f7877ca358ca8";
        };
        urlPrefix = mirror://ubuntu;
      } // args);
  
      ubuntu910i386 = args: makeImageFromDebDist ({
        name = "ubuntu-9.10-karmic-i386";
        fullName = "Ubuntu 9.10 Karmic (i386)";
        packagesList = fetchurl {
          url = mirror://ubuntu/dists/karmic/main/binary-i386/Packages.bz2;
          sha256 = "6e3e813857496f2af6cd7e6ada06b3398fa067a7992c5fd7e8bd8fa92e3548b7";
        };
        urlPrefix = mirror://ubuntu;
      } // args);
   
      ubuntu910x86_64 = args: makeImageFromDebDist ({
        name = "ubuntu-9.10-karmic-amd64";
        fullName = "Ubuntu 9.10 Karmic (amd64)";
        packagesList = fetchurl {
          url = mirror://ubuntu/dists/karmic/main/binary-amd64/Packages.bz2;
          sha256 = "3a604fcb0c135eeb8b95da3e90a8fd4cfeff519b858cd3c9e62ea808cb9fec40";
        };
        urlPrefix = mirror://ubuntu;
      } // args);
  