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I've borked my ubuntu installation.

It seems to have mixed up whether to use bios grub or efi grub.

When I get to grub rescue, I can find all the mod files I need at (hd0,msdos5)/boot/grub/x86_64-efi

However, if I try to set prefix to this path, it always appends i386-pc to the path, so it can never find the normal.mod when I try to insmod.

So I end up getting can't find file: (hd0,msdos5)/boot/grub/x86_64-efi/i386-pc/normal.mod

Rather frustrating. How can I convince this grub that i386-pc doesn't exist and it needs to look where I tell it to look? Haha.

I don't think this question is a duplicate, as I've been through the steps of all the other grub rescue answers and it's led me to this conundrum.

Oh, and I can't use my usb any more for some reason, or I'd just boot to live. So that's out. (Crashes to initramfs saying can't find live medium.)

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In my experience, GRUB can be very difficult to repair once things go "off the rails." You might want to consider using one of the several EFI-based alternatives instead. Most of them require at least some manual configuration, but that's likely to be easier than fixing GRUB. My own rEFInd requires no ongoing maintenance, so if it works initially, it should require little or no attention thereafter. (You can test it via a USB flash drive or CD-R before installing it to your hard disk, if you like.)

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