It’s very easy to run into boot problems especially when you are trying Linux for the first time, and you were configuring your PC for dual-boot with Windows OS alongside a Linux distro like Ubuntu, Linux Mint, elementary OS, etc.. In such situations, Boot Repair utility helps you fix boot problems.
Boot Repair utility can be used to fix a non-bootable partition, for instance, you had Windows 10 on your PC, and you have installed Ubuntu alongside as dual-boot. For some reason, typically due to GRUB bootloader misconfiguration, your PC is not able to boot into Windows 10, but Ubuntu works just fine or vice versa. In this scenario, boot into an OS that works, and then use Boot-Repair Utility to fix the booting issues. The utility is available for Windows, and Ubuntu & its derivatives.
In the most unlikely case where no OS is not able to boot, you can use an Ubuntu or Linux Mint Live USB drive and boot into it. Then install Boot-Repair in a live environment and run it to fix boot issues.
Fix Boot Problems
The utility reinstalls GRUB and GRUB2 bootloader in a single click. Working with it is very simple. Just launch the Boot-Repair tool and then click on the “Recommended repair” button and proceed with on-screen instructions. At first step, it will ask whether to upload to pastebin server. You can just accept it. All this option does is make a ready URL for you so that you can post it in their support forum and get help from the forum members, just in case the utility couldn’t fix your PC.
For Linux experienced users, there are advanced settings which can be accessed by clicking on the Advanced Options and then selecting the “Other Options” tab. You can uncheck “Upload the report to a Pastebin” and manually troubleshoot yourselves. I don’t recommend playing with Advanced Options for beginners as any wrongdoing here may further worsen your PC’s problems.
Install Boot Repair on Ubuntu, Linux Mint, and elementary OS
Elementary OS Loki and above users need to first enable PPA before proceeding further.
STEP 1: Launch ‘Terminal’.
STEP 2: Copy and paste the following in the Terminal and hit enter. This command will add the Boot Repair’s PPA repository sources to your PC.
sudo add-apt-repository ppa:yannubuntu/boot-repair
STEP 3: Perform an update using the following command:
sudo apt-get update
STEP 4: Finally install Boot-Repair using following command:
sudo apt-get install -y boot-repair && boot-repair