How do I boot into Ubuntu through Grub Rescue?

so I am new to how to do these, so I apologize if something I say is not how things are done here.

So I have been using Ubuntu 18.04 for a while now. Recently I wanted to try and dual boot LineageOS to just play around with it, and I think I may have damaged my Grub files (or whatever it is called). I have tried to force boot the partition with Ubuntu on it, but I keep getting the same error.

Grub rescue> ls
(hd0) (hd0,msdos1) (hd1) (hd1,msdos1)
grub rescue>set boot=(hd0,msdos1)
grub rescue>set prefix=(hd0,msdos1)/boot/grub
insmod normal
error:unknown filesystem.

I tried the same thing with set root=(hd0,msdos1) but that got me the same issue. I tried both of these variants with (hd0), (hd1), (hd1,msdos1), and got again the same errors. I am unsure of what to do at this point because I have gone through a lot of different things to try and fix this issue and none of them have done anything. Any advice or suggestions are welcome, and I appreciate all of it!

Note: I did try to boot off of a live USB, which gives me a blank screen, and if I try to boot it through Grub rescue ((hd1,msdos1) is its file system) and I get the same error through Grub. If there are any questions at all feel free to ask, and thank you in advance.

Ask Ubuntu Asked by TheBlinded on November 14, 2021

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