anchor.diff:  
   
     qemuCommandGeneric = ''
  -    QEMU_SMBD_COMMAND=${samba}/sbin/smbd qemu-system-x86_64 \
  +    qemu-system-x86_64 \
         -nographic -no-reboot \
         -smb $(pwd) -hda $diskImage \
         $QEMU_OPTS
  
positive.code:   vmRunCommand = qemuCommand: writeText "vm-run" ''
      export > saved-env
  
      PATH=${coreutils}/bin:${kvm}/bin
  
      diskImage=''${diskImage:-/dev/null}
  
  
negative.code: 
  
    qemuCommandLinux = ''
      qemu-system-x86_64 \
        -nographic -no-reboot \
        -smb / -hda $diskImage \
        -kernel ${kernel}/vmlinuz \
  