frist error upon boot I got was "error: invalid arch independent ELF magic"...


sudo mount /dev/sda5 /mnt
sudo grub-install --root-directory=/mnt /dev/sda

this changed it to error: file '/grub/i386-pc/normal.mod' not found

I read that for Grub 2 I needed to change "root" to "boot"
in the previous command I ran,   After running that 
it still gives me 

error: file '/grub/i386-pc/normal.mod' not found