How to restore the hornbeam bootloader?

Question

linux

When I try to boot from a flash drive with a linux monjaro image, I get

error: unknown filesystem

;
I write ls and get:

(hd0) (hd1)

but it is impossible to assign a bootloader, again he writes about a system not found.

Answer 1

Google "rescue grub command" and you'll be happy.
The GRUB2 Boot Saga can help you with the theory behind how the brute works.