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documentation_complete: true
title: 'GRUB2 bootloader configuration'
description: |-
During the boot process, the boot loader is
responsible for starting the execution of the kernel and passing
options to it. The boot loader allows for the selection of
different kernels - possibly on different partitions or media.
The default {{{ full_name }}} boot loader for x86 systems is called GRUB2.
Options it can pass to the kernel include <i>single-user mode</i>, which
provides root access without any authentication, and the ability to
disable SELinux. To prevent local users from modifying the boot
parameters and endangering security, protect the boot loader configuration
with a password and ensure its configuration file's permissions
are set properly.
platform: grub2 and system_with_kernel
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