anchor.diff:        packagesList = fetchurl {
           url = mirror://ubuntu/dists/karmic/main/binary-amd64/Packages.bz2;
           sha256 = "3a604fcb0c135eeb8b95da3e90a8fd4cfeff519b858cd3c9e62ea808cb9fec40";
  +      };
  +      urlPrefix = mirror://ubuntu;
  +    } // args);
  +
  +    ubuntu1004i386 = args: makeImageFromDebDist ({
  +      name = "ubuntu-10.04-lucid-i386";
  +      fullName = "Ubuntu 10.04 Lucid (i386)";
  +      packagesList = fetchurl {
  +        url = mirror://ubuntu/dists/lucid/main/binary-i386/Packages.bz2;
  +        sha256 = "0e46596202a68caa754dfe0883f46047525309880c492cdd5e2d0970fcf626aa";
  +      };
  +      urlPrefix = mirror://ubuntu;
  +    } // args);
  + 
  +    ubuntu1004x86_64 = args: makeImageFromDebDist ({
  +      name = "ubuntu-10.04-lucid-amd64";
  +      fullName = "Ubuntu 10.04 Lucid (amd64)";
  +      packagesList = fetchurl {
  +        url = mirror://ubuntu/dists/lucid/main/binary-amd64/Packages.bz2;
  +        sha256 = "74a8f3192b0eda397d65316e0fa6cd34d5358dced41639e07d9f1047971bfef0";
         };
         urlPrefix = mirror://ubuntu;
       } // args);
  
positive.code:     ubuntu904x86_64 = diskImageExtraFuns.ubuntu904x86_64 [];
      ubuntu910i386 = diskImageExtraFuns.ubuntu910i386 [];
      ubuntu910x86_64 = diskImageExtraFuns.ubuntu910x86_64 [];
      debian40i386 = diskImageExtraFuns.debian40i386 [];
      debian40x86_64 = diskImageExtraFuns.debian40x86_64 [];
      debian50i386 = diskImageExtraFuns.debian50i386 [];
  
negative.code:     ubuntu904x86_64 = extraVirtualPackages : diskImageFuns.ubuntu904x86_64 { packages = commonDebianPackages ++ extraVirtualPackages; };
      ubuntu910i386 = extraVirtualPackages : diskImageFuns.ubuntu910i386 { packages = karmicPackages ++ extraVirtualPackages; };
      ubuntu910x86_64 = extraVirtualPackages : diskImageFuns.ubuntu910x86_64 { packages = karmicPackages ++ extraVirtualPackages; };
      ubuntu1004i386 = extraVirtualPackages : diskImageFuns.ubuntu1004i386 { packages = lucidPackages ++ extraVirtualPackages; };
      ubuntu1004x86_64 = extraVirtualPackages : diskImageFuns.ubuntu1004x86_64 { packages = lucidPackages ++ extraVirtualPackages; };
      debian40i386 = extraVirtualPackages : diskImageFuns.debian40i386 { packages = commonDebianPackages ++ extraVirtualPackages; };
      debian40x86_64 = extraVirtualPackages : diskImageFuns.debian40x86_64 { packages = commonDebianPackages ++ extraVirtualPackages; };
      debian50i386 = extraVirtualPackages : diskImageFuns.debian50i386 { packages = commonDebianPackages ++ extraVirtualPackages; };
  