OCI CentOS 8 instance cannot boot after centos2ol

[hecsa01]

Hi!
Hope you are doing great.
Yesterday I tried to move from CentOS 8 to OL 8 using the centos2ol.sh script. It showed no errors, and after all the process ended, I tried to reboot the OCI based VM.
Now using the serial console connection, and then VNC to use it I see only the grub> prompt, and everything I tried seems not to work.
I tried setting root as (hd0,gpt2), then linux /vmlinuz... and initrd /initram..., and after that tried to boot.
It ends giving me the dracut prompt, as it cannot see the usual OCI created LVM root partition of the boot volume.
Any help or guidance will be VERY appreciated.
Thanks, and best regards,
HeCSa.