Grub was updated. How to install Grub correctly to update Grub in UEFI?

grub-install defaults to a specific path. This is explained in the GRUB manual. See here:

https://www.gnu.org/software/grub/manual/grub/grub.html#Installing-GRUB-using-grub_002dinstall

On EFI systems for fixed disk install you have to mount EFI System Partition. If you mount it at /boot/efi then you don’t need any special arguments:

# grub-install

Otherwise you need to specify where your EFI System partition is mounted:

# grub-install --efi-directory=/mnt/efi

Now guess what mountpoint is used by default in EndeavourOS.

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