Quote by Jordan Uggla:
Do not write the filesystem to the entire device without a partition
table. When there is no partition table there is no area for grub to
embed its core.img. Run the dd command again, partition the drive and
write a filesystem to a partition (with the first partition starting 1
MiB into the drive as most partitioning programs already do by
default), then re-run grub-install. And don't use --force with
grub-install. If you need to use --force for grub-install to complete
then you've done something wrong.
Also, any time you want to run a command with the output in English
you can prepend the command with "LANG=C ".
Thank you Jordan, youre absolutely right! Just make it right and it works!