How to restore a hornbeam, if not one method fails?

Question

linux

Hello!
I installed Linux, which distribution I will not say, I will only say that it is based on Debian.
Apparently the hands are not from the right place, and the like ... In general, I screwed up. And now, when starting the laptop, grub rescue is launched
. I tried all the methods from the Internet, I can not restore it. All the time he writes errors that are not described in any instructions ...
Help, who is not difficult, please, with the restoration of the hornbeam. Describe everything from scratch, what and how to do in this rescue ... Urgently need a working laptop.

Answer 1

1) We need error messages.
2) Need a partition table, with types of file systems. If you don't remember, then at least the output of the `ls` command in rescue mode.
3) Everything will be simplified if you have the opportunity to use livecd.