Nicolas George wrote: > That is absolutely not true. Partition data, UEFI or not, bootable or > not, are just octets on a medium. They could be created with an Atari if > Atari had USB plugs, that would not make any difference. > > The vague truth behind your statement is: > > To edit UEFI variables, the computer need to have booted in UEFI mode. > > The UEFI variables, the contents of the computer's non-volatile internal > memory. Not the contents of the drive. They contain, amongst other > things, the default boot options. They are not used when selecting the > boot option manually.
Yes, this is what I wanted to say - you are right. You can create the partition with fdisk or alike, but grub refuses to install if it is not booted in UEFI
