Hey, everybody,

Since it hasn't affected my experience yet, I'm not sure if it is really a problem — newbie user here. There is a short warning appearing every time I turn my notebook on. It shows just before the OS selection (screenshot).

Sorry about the image quality (smartphone video's screenshot), here is the text as I can read:

error: file '/boot/grub/locale/pt.gmo' not found

Should I worry about that or is it harmless?

Thanks!

If it boots OK and is generally working for you then I wouldn't worry. I'm guessing that's a missing Portuguese translation for GRUB?