How to install AMD ROCm on Ubuntu without the provided amdgpu driver. For some reason, AMD wants to push its amdgpu driver but if you already have a new one like for Oibaf, you do not need it.
Generally follow the documentation loosly for the basic requirements: https://rocm.docs.amd.com/projects/install-on-linux/en/latest/install/prerequisites.html Not sure if the kernel headers are really needed.
The loosly follow the manual detailed install via package managers: https://rocm.docs.amd.com/projects/install-on-linux/en/latest/install/native-install/ubuntu.html