Software⏱️ 3 min read📅 2026-06-19

How to Fix: Installing Ubuntu 14.04--Grub Rescue Error after failing to turn off secure boot [SOLVED]

Grub Rescue Error after failing to turn off secure boot on Ubuntu 14.04 installation.

Quick Answer: Try setting the root partition to /dev/sda9 (or the correct partition for your system) and then run grub rescue again.

📋 Table of Contents

  1. ⚠️ Common Causes
  2. 🚀 How to Resolve This Issue
  3. ✨ Wrapping Up

The error 'file /boot/grub/i386-pc/normal.mod not found Entering rescue mode...' occurs when attempting to boot Ubuntu 14.04 after failing to turn off secure bootduring installation. This issue affects users who have installed Ubuntu alongside Windows 8.1 and encountered problems with dual-booting.

This error can be frustrating as it prevents the user from accessing their operating system, making it difficult to perform daily tasks or troubleshoot issues.

⚠️ Common Causes

  • The primary reason for this error is that secure boot was not properly disabled during the installation process. Secure boot is a security feature that requires the operating system to be signed by a trusted authority before it can run. If secure boot is enabled, the bootloader may not be able to find the necessary files, leading to this error.
  • Another possible cause is that the GRUB bootloader was not properly configured during installation.

🚀 How to Resolve This Issue

Disable Secure Boot and Reinstall GRUB

  1. Step 1: Step 1: Restart the computer and enter the BIOS settings by pressing F2, F12, or Del (depending on the manufacturer). Navigate to the Advanced Tab and disable Secure Boot. Save changes and exit the BIOS settings.
  2. Step 2: Step 2: Insert the Ubuntu installation media and boot from it. Select the option to repair the system and continue with the GRUB bootloader repair.
  3. Step 3: Step 3: Run the command `sudo grub-install --removable /dev/sda` (replace `/dev/sda` with the actual device name of the drive containing the operating system). This will reinstall the GRUB bootloader.

Reinstall GRUB and Bootloader

  1. Step 1: Step 1: Insert the Ubuntu installation media and boot from it. Select the option to repair the system and continue with the GRUB bootloader repair.
  2. Step 2: Step 2: Run the command `sudo grub-install --removable /dev/sda` (replace `/dev/sda` with the actual device name of the drive containing the operating system). This will reinstall the GRUB bootloader.

✨ Wrapping Up

To resolve this issue, it is recommended to follow either Method 1 or Method 2. Disabling Secure Boot and reinstalling GRUB is often the most effective solution. If these steps do not work, it may be necessary to try a different approach, such as using a live USB drive to boot into Ubuntu and repair the bootloader manually.

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