I used this instructions (https://help.ubuntu.com/community/Fu...ion_Howto_2019) 2 years ago to setup my current pc (Ubuntu Desktop 22.04) without any problems.
Now I have tried the same instructions to setup a new pc but I keep getting an error.
"Unable to install GRUB in /dev/nvme0n1. Executing grub-install /dev/nvme0n1 failed.
The hardware of the 2 pcs are identical. I also tried with a new disk in my working pc, but still the same error.
Any ideas what I'm doing wrong?