anchor.diff:  
   # hernad: no hyper-v
   # Build the Hyper-V KVP Daemon
  -# RUN cd $LINUX_KERNEL && \
  +# RUN cd $LINUX_KERNEL_SOURCE && \
   #    make headers_install INSTALL_HDR_PATH=/usr && \
   #    cd /linux-kernel/tools/hv && \
   #    sed -i 's/\(^CFLAGS = .*\)/\1 '"$GCC_M"'/' Makefile && \
  
positive.code: RUN chown root.root $ROOTFS/opt/VirtualBox
  RUN chmod 4755 $ROOTFS/opt/VirtualBox/VBoxHeadless
  
  RUN ln -s /lib/modules/$KERNEL_VERSION-$LINUX_BRAND /lib/modules/$(uname -r)
  RUN cd /opt/VirtualBox/src/vboxhost && KERN_DIR=$LINUX_KERNEL make install
  
  # Install the kernel modules in $ROOTFS                                                                                         
  RUN cd $LINUX_KERNEL && \                                                                                                       
      make INSTALL_MOD_PATH=$ROOTFS modules_install firmware_install
  
  RUN mkdir /zfs
  
  ENV ZFS_VER 0.6.4 
  RUN cd /zfs && curl -LO http://archive.zfsonlinux.org/downloads/zfsonlinux/spl/spl-$ZFS_VER.tar.gz
  #RUN cd $LINUX_KERNEL && make modules
  RUN cd /zfs && tar xvf spl-$ZFS_VER.tar.gz && cd spl-$ZFS_VER && ./configure --with-linux=$LINUX_KERNEL && make && make install 
  
  # hernad: zfs build demands librt from debian
  RUN cp /lib/x86_64-linux-gnu/librt-2.13.so $ROOTFS/lib/
  RUN rm $ROOTFS/lib/librt.so.1
  RUN cd $ROOTFS/lib && ln -s librt-2.13.so librt.so.1
  RUN cd /zfs && curl -LO http://archive.zfsonlinux.org/downloads/zfsonlinux/zfs/zfs-$ZFS_VER.tar.gz                              
  RUN cd /zfs && tar xvf zfs-$ZFS_VER.tar.gz && cd zfs-$ZFS_VER && ./configure --with-linux=$LINUX_KERNEL && make && DESTDIR=$ROOTFS make install 
                                                                                                                                  
  # Install the kernel modules in $ROOTFS                                                                                         
  RUN cd $LINUX_KERNEL && \                                                                                                       
      make INSTALL_MOD_PATH=$ROOTFS modules_install firmware_install                                                              
  
  # Make sure that all the modules we might have added are recognized (especially VBox guest additions)
  RUN depmod -a -b $ROOTFS $KERNEL_VERSION-$LINUX_BRAND
  
  
  
negative.code: RUN mkdir -p /tmp/iso/boot
  
  # Install the kernel modules in $ROOTFS
  RUN cd $LINUX_KERNEL_SOURCE && \
      make INSTALL_MOD_PATH=$ROOTFS modules_install firmware_install
  
  # Remove useless kernel modules, based on unclejack/debian2docker
  