GRUBkäynnistysvalikossa
GRUBkäynnistys, often shortened to GRUB, is a boot loader package that is commonly used on Unix-like operating systems, particularly Linux distributions. Its primary function is to load the operating system kernel into memory and then hand over control to it. GRUB stands for GRand Unified Bootloader. It is a highly configurable and versatile tool that allows users to select which operating system to boot if multiple are installed on a system, and to pass kernel parameters that can influence the booting process and system behavior.
The GRUB boot loader is typically installed in the Master Boot Record (MBR) or the GUID Partition