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I am trying to install the latest Linux Mint onto my laptop via a USB stick. The laptop previously had Ubuntu, and it had a separate /home partition. I'm overriding and reformatting the / partition, and leaving the /home partition in place. I'm replacing Ubuntu with Mint, but trying to keep my personal data.

The install process seems to go just fine, right up until I reboot. Then I get this error:

error: file `/boot/grub/x86_64-efi/normal.mod' not found.
grub rescue>

I thought maybe I hadn't specified which partition to boot from when installing, so I went back twice and re-installed to make sure, but I can't determine anything about the install process that I am not setting correctly. Not that I can tell, anyway.

How do I resolve this error so that I can get my Mint up and running?

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Maybe the install script just can't identify your setup correctly and you'll need to install grub manually. Are you using grub or grub-2? – Spidey Apr 29 '13 at 16:44
up vote 1 down vote accepted

Try to reinstall grub. Plug in you USB dongle with Mint on it and run a Live Session. Open the console and type

sudo mount /dev/sda1 /mnt
sudo grub-install --root-directory=/mnt/ /dev/sda

Then reboot and look if it works.

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