GRUB (GRand Unified Bootloader) is a powerful and versatile bootloader used in many Linux distributions. However, issues such as corrupt configurations, incorrect partitioning, or failed system updates can lead to a situation where your system fails to boot properly, leaving you at the infamous "GRUB rescue" prompt. This guide will walk you through the essential GRUB rescue commands and steps needed to recover your Linux system and restore normal boot functionality.
When GRUB is unable to find the boot partition or encounters other critical issues, it enters a minimal mode known as "GRUB rescue." In this mode, only a limited set of commands are available to help you troubleshoot and fix the bootloader. Understanding the basics of this mode is crucial for successful system recovery.