It’s probably going to be a very rare occasion when you need to repair or reinstall the GRUB2 bootloader on one of your data center Linux servers, but when that time comes, you will be glad for the knowledge. Because nothing can toast a sysadmin’s day like having to do a full OS...
To repair the bootloader configuration (BCD), you have to boot from the original Windows installation media (also, you can use a recovery disk or a specialUEFI bootable USB flash drive). After booting into the recovery environment, you need to open a command-line console: selectSystem Restore...
This tutorial covers two ways to resolve GRUB boot issues: theGRUB Rescue promptand theBoot Repair tool. Via GRUB Terminal GRUB Terminal features commands that help diagnose and fix boot-related issues. Proceed with the steps below to fix the system's bootloader via GRUB Terminal: 1. Use the...
Any one who can access the boot loader can easily get the root access to your system. We already have posted a guide that described how toreset root password in Linux. That tutorial taught you how to easily reset or recover root user password via Grub bootloader. Once someone has physical ...
Once the installation finishes, launch the Boot Repair tool from the terminal. $ sudo boot-repair Allow the tool to complete the bootloader repair process. Method #2: Use the GRUB Terminal The second method uses the GRUB terminal that you see after the error. This method uses a series of ...
While this tool can’t fix all issues, it is always a great choice to avoid having to set up an Ubuntu Live USB. For example, you can use this recovery mode to attempt to repair broken packages, check file systems for errors, and update the grub bootloader. Of course, if your system...
If your Linux computer can't boot into its operating system, you're likely to find yourself staring at a prompt in the GRUB shell. Follow these steps to repair your broken boot processes. When Your Bootloader Doesn't Boot There are very few computer problems that make your heart sink as ...
Let me explain a bit here. When you install Ubuntu or some other Linux, it adds Grub bootloader to your boot settings and makes it the default. So, now your system has two boot loaders or boot manager (whatever you want to call it). Grub gives you option to boot into Ubuntu or Wind...
dpkg Repair broken packages fsck Check all file systems grub Update grub bootloader network Enable networking root Drop to the root shell prompt system- summary System summary Select the option that says "Root – Drop to Root Shell Prompt" from the list of options. Click on the enter button....
Under some circumstances, we may want to reinstall GRUB 2. This might be due to any of the following reasons: First, when we want to repair a broken system where a user gets a screen with no prompt or cannot boot Second, when we want to return control to Linux bootloader after adding...