Your ability to identify each stage of the boot process will prove invaluable in fixing boot problems and understanding the system as a whole. However, the default behavior in many Linux distributions often makes it difficult, if not impossible, to identify the first few boot stages as they pro...
If your GRUB shells shows a "grub>" prompt, you can use thels,set,linux, andinitrdcommands to fix your Linux system. If instead you see a "grub rescue>" prompt, useset,insmod,linux, andinitrdcommands to boot your PC. If your Linux computer can't boot into its operating system, you...
You now know the physical and logical structure of a Linux system, what the kernel is, and how to work with processes. This chapter will teach you ...
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...
Boot-time and operational dependencies are more complicated than they may seem at first because strict dependencies are too inflexible. For example, imagine a scenario in which you want to display a login prompt after starting a database server, so you define a dependency from the login prompt ...
the machine. In some cases, the other OS’s bootloader may overwrite GRUB (the bootloader for Linux), resulting in the inability of the Linux system to boot up. In such cases, you may see the GRUB rescue mode where you get a minimal command prompt and limited access to the file system...
After your system restarts, you will get the following GRUB screen, where you will get 5 seconds to break the normal boot process. So quickly pressekey to breaking the boot process. Grub Menu Once you press theekey it will prompt you to enter the GRUB password as shown. ...
Step 2: Move Windows up to the boot order in your BIOS A crucial step This next step is vital. You're going to reprioritize Windows in your boot order. Linux also adds its own bootloader, known as GRUB. We'll want to change a few settings to restore Windows in the boot order. If...
Can’t Access GRUB Boot Menu If for any reason you can’t access Ubuntu’s GRUB boot menu, you won’t be able to boot into recovery mode in Ubuntu. This usually means the bootloader and/or your Ubuntu system has been corrupted somehow. The easiest solution is toreinstall Ubuntu using a...
Place the USB stick or DVD in the appropriate drive, reboot the machine, and instruct theBIOS/UEFIto boot up from the DVD/USB by pressing a special function key (usuallyF12,F10orF2depending on the vendor specifications). Once the media boot-up a new grub screen should appear on your moni...