How to Fix Minimal BASH Like Line Editing is Supported GRUB Error In Linux?

GNU GRUB (Stands for GNU GRand Unified Bootloader) is a boot loader package. It is a part of the GNU project. It is the reference implementation of the Free Software Foundation's Multiboot Specification, that provides a user the choice to boot one of multiple operating systems installed on a computer.

It also provides the facility to choose a specific kernel configuration available on a specific OS partition. The Minimal BASH Like Line Editing is Supported GRUB Error In Linux looks like this as shown below:

What Causes the Minimal BASH GRUB Error?

This error typically occurs due to:

• Corrupted GRUB installation or configuration files.
• Missing or damaged boot partitions.
• Incorrect configuration of GRUB, leading to issues with the root and prefix variables.

Steps to Solve Minimal BASH..GRUB Error

Step 1: Identify the Partition Containing Your Linux Installation

First, we need to identify the partition where your Linux system is installed. GRUB allows you to list all available partitions using the ls command. Linux partitions are usually formatted with ext2, ext3, or ext4 filesystems.

grub> ls

This will show us all existing partitions.

Note: If you don't know which partition has Linux OS then you can check with the ls command as follows:

grub> ls (hdX, Y)

Here, X is disk number and Y is partition name.

For Example: grub> ls (hd0, gpt3) or grub> ls (hd1, msdos5)

Step 2: Set the Root and Prefix Variables

Once you’ve identified the correct partition, you need to set the root and prefix variables. These variables tell GRUB where the Linux system and its boot files are located.

• root: Variable which points where the entire Linux OS is installed.
• prefix: Variable which points where the GRUB is installed.

grub> set root=(hdX, Y)
grub> set prefix=(hdX, Y)/boot/grub

Step 3: Install and Load the Normal Module

Next, you'll need to load the normal module, which contains essential components for booting the Linux kernel.

Install the normal module:

grub> insmod normal

Run this mod file the setup your GRUB:

grub> normal

Step 4: Reinstall and Update GRUB

Update GRUB. After entering your Linux OS, reinstall GRUB and update it. Open the terminal and enter following commands:

sudo grub-install /dev/sdXY
sudo update-grub

Here, X is disk number and Y is partition number of EFI partition. If you don't know which partition is an EFI partition, use Disks or GParted to check.

This should resolve the "Minimal BASH Like Line Editing" GRUB error, allowing you to boot into your Linux system without any issues.

Conclusion

The "Minimal BASH Like Line Editing is Supported" GRUB error in Linux can be frustrating, but by following the steps outlined in this guide, you should be able to resolve the issue and boot into your Linux system. Identifying the correct partition, setting the root and prefix variables, and reinstalling GRUB are essential steps for restoring normal boot functionality. Make sure to regularly update and back up your GRUB configuration to prevent similar issues in the future.