See if this tutorial guide I found helps you:
[Fixed] Minimal Bash-Like Line Editing Is Supported Grub Error in Ubuntu Linux
By Aadesh / March 26, 2022
You probably have encountered, Minimal BASH like line editing is supported. For the first word, TAB lists possible command completions. Anywhere else, TAB lists possible device or file completions error in Grub if you dual boot Windows and Linux and have recently updated Windows.
Windows updates have a history of corrupting the boot files or partition of the Linux installations. You can encounter this error in any Linux based OS. But don’t worry, there’s an easy fix for this error.
Prerequisites to Fix This Error
You will need the following things to get started :
- Live USB stick of the same Linux Distribution
- An Internet connection (Ethernet or Wi-Fi)
If you do not have a Live USB stick, you can create one by following the steps mentioned here.
Solution #1 – Minimal BASH-like line editing is supported Grub error in Ubuntu Linux
Boot into the live USB stick of your distribution, now follow these steps carefully:
1. Check if your system uses EFI or BIOS
From the command line interface, type the following command to list your partitions and to check the type of your filesystem:
sudo fdisk -l
If anywhere, you spot something like ‘EFI’ then that means your system is of EFI type. Most of you probably have this type of installation.
2. For UEFI based systems
We are now going to mount our root (/) partition, in my case, it is /dev/sda2, but yours can be different. Look closely at your fdisk command output to know your root partition, and then mount it using this command :
sudo mount /dev/sdaX /mnt
Now, we will mount our EFI partition as well. To do that, type :
sudo mount /dev/sdaY /mnt/boot/efi
Again, don’t forget to change X and Y with the correct partition numbers on your disk. Finally, reinstall grub using the following commands :
sudo grub-install --boot-directory=/mnt/boot --bootloader-id=ubuntu --target=x86_64-efi --efi-directory=/mnt/boot/efi
And now finally, restart your system by typing the following commands in the terminal and remove your Live USB stick when prompted.
shutdown -r now
3. For BIOS systems
We will again mount our root partition using the following commands :
sudo mount /dev/sdaX /mnt
And then we will easily re-install GRUB using the following commands :
sudo grub-install /dev/sdX
Reboot your system now and remove the installation media when prompted. Your system should work fine now.
Solution #2 – Minimal BASH-like line editing is supported error in Ubuntu Linux
If the above method didn’t work for you to fix the Grub error in Ubuntu based Linux systems, then you can try installing a tool called ‘Boot Repair’. This tool is capable of detecting and fixing all the GRUB-related problems for you. You will also need a live USB stick of the distribution for this method.
1. Launch Boot Repair tool
Boot into your live USB stick, and in the menu search bar, search for Boot Repair.
2. Repair your installation
Launch the boot repair tool.
A window will appear before you, click on the ‘Recommended Repair’ option.
It will take some time, but after that, it will present you with some commands to fix the issue. Copy (or type) the commands one by one in the Terminal.
If while typing the commands a window appears, select yes and remove the old GRUB files. Once the process is finished, You will be greeted with a menu which will tell you to restart your system. You can also check the log files mentioned in the URL. Don’t forget to remove your installation media when prompted.
Summary
If while typing the commands a window appears, select yes and remove the old GRUB files. Once the process is finished, You will be greeted with a menu which will tell you to restart your system. You can also check the log files mentioned in the URL. Don’t forget to remove your installation media when prompted.
Also Read
Arch Wiki – Grub Troubleshooting
