Hi Suvayu...
Hello,
[..]
amdgpu 0000:06:00.0: Direct firmware load for
amdgpu/raven_gpu_info.bin
failed with error -2
I have had the same fight with AMDGPU-PRO drivers on Centos.
The problem is that AMD leaves some conf files for dracut.
go into /etc/dracut.conf.d dir and delete anything amdgpu related.
(For me, that means delete everything in that dir)
After that rerun dracut to rebuilt initramfs,
and you should be back to normal.
Hope it helps.
Allan.