Install a Boot Manager Flashcards
What is GRUB
(Grand Unified Bootloader) A program that calls a Unix/Linux operating system into memory
What does the command grub-install (device) device
Used to install GRUB to the specified device
What does the command grub do
Invokes the GRUB shell environment
What does the command help do
Print the help listing for GRUB, or get more info on a command
What does the command find do
Search for a file in all partitions and list the device the file is on
What does the command quit do
Exit the grub shell
How partitions did the MBR support
26 total partitions
How many partitions can GPT (GUID Partition Table) have
Supports 128 partitions
Describe the boot process with UEFI
UEFI BIOS starts up and looks for MBR - GPT Header (lets the computer know its a header – Partition Entry array(Large list of partitions)— enters the /boot/grub2 file
What partition stores the image for the boot loader in the efi system
/boot/efi
What does the command grub2-editenv list
view the default boot entry for the grub configuration file
What does the command grub2-mkconfig do
Creates (or updates) a /boot/grub2/grub.cfg file based on entries from the /etc/default/grub file
What does the command update-grub do
command that can be used to update a GRUB2 configuration after changes to /etc/default/grub have been made, found on Debian based systems
