When install the AMD MI25 GPU driver in the Ubuntu 18.04.4 LTS kernel 4.15.0-11-generic in the H12SSW-InR/NTR MB.
After install the MI25 driver then reboot the Ubuntu OS.
The OS boot will show the error message as below, How to fix it?
Please enable SR-IOV from BIOS setup menu.
We use Ubuntu 18.04.5 LTS kernel 5.4.0-42-generic with AMD MI25 without this error and OS working fine.