to find /boot/grub, and loads grub.cfg from it as well as more GRUB modules.
The thing that tends to go wrong here is that the core image must be from
-the same version of GRUB as any modules it loads. /boot/grub/*.mod are
+the same version of GRUB as any modules it loads. `/boot/grub/*.mod` are
updated only by grub-install, so this normally works OK. However, for
various reasons (deliberate or accidental) some people install GRUB to
-multiple disks. In this case, grub-install might update /boot/grub/*.mod
+multiple disks. In this case, grub-install might update `/boot/grub/*.mod`
along with the core image on one disk, but your BIOS might actually be
booting from a different disk. The effect of this will be that you'll have
an old core image and new modules, which will probably blow up in any number