if  !  [  -d  ${INSTALL_ROOT}/etc/dropbear ];  then
  mkdir -p ${INSTALL_ROOT}/etc/dropbear  &&
  dropbearkey -t rsa -f ${INSTALL_ROOT}/etc/dropbear/dropbear_rsa_host_key  &&
  dropbearkey -t dss -f ${INSTALL_ROOT}/etc/dropbear/dropbear_dss_host_key
fi
