Can’t boot into LFS using GRUB

I have made LFS.  But unfortunately, when I installed GRUB, I got an error that said ext2 system isn’t supported.  But I added --force into grub-install --force /dev/sda and it installed, so I tried rebooting, and it automatically puts me into GRUB rescue shell.  Is there any way to repair it, or do I have to compile everything again? I tried finding a kernel from the GRUB shell to load it, but I can’t really find anything.  And, when doing ls (hd0,gpt1), I don’t see any files or directories.