W dniu 17.06.2022 o 08:17, Takahiro Akashi pisze:
So I would consider switching to UEFI firmware and then check.
Yeah, it is the last resort as I hesitate to do so because OS must be reinstalled from the scratch.
It does not. You just need to have small vfat partition and GPT partition table.
Conversion from U-Boot (or BIOS on x86) to UEFI is quite easy.