How to cross compile for ROS melodic with DriveWorks

Since NVROS is for ROS Kinetic( Ubuntu 16.04 ) and Xavier for DRIVE software is Ubuntu 18.04, so I can not follow these steps.

REF: NVROS
https://docs.nvidia.com/drive/archive/5.1.0L/nvvib_docs/index.html#page/DRIVE%2520Linux%2520AGX%2520PDK%2520Development%2520Guide%2FStorage%2520Devices%2Frobot_os.html%23

Dear Denny.hsu,
We are checking on this topic internally. We will get back to you

We have the same problem. An upgrade of NvROS to ROS-melodic would be a good solution for us.

Hi Denny.hsu,

Please refer to the FAQ topic for cross compiling ROS with DRIVE Software 10.0. Thanks!

https://devtalk.nvidia.com/default/topic/1070613/faq/how-to-cross-compile-ros-for-drive-agx-developer-kit-with-drive-software-10-0/