Contents
Does UEFI use GRUB?
UEFI is system firmware (like BIOS, but newer). GRUB is a bootloader, so it must conform to whatever form is expected by the firmware of the relevant hardware architecture, or else the firmware will not be able to load GRUB.
Which boot loader can hand a UEFI system?
UEFI applications can be developed and installed independently of the original equipment manufacturers (OEMs). A type of UEFI application is an OS boot loader such as GRUB, rEFInd, Gummiboot, and Windows Boot Manager; which loads some OS files into memory and executes them.
Does Debian support secure boot?
Starting with Debian version 10 (“Buster”), Debian included working UEFI Secure Boot to make things easier.
How to install UEFI boot on Debian 2.1?
2.1 Installation of a new Debian system. There is no installer image for UEFI, so you can either: make your own, by installing an UEFI boot loader to an USB stick, which will load a regular installer kernel and initrd; use a regular BIOS installer image, using the compatibility mode of your motherboard.
How to switch from legacy to UEFI boot mode?
This manual has been tested on Debian 7 Wheezy, Debian 8 Jessie, Debian 9 Stretch and Debian 10 Buster. Please help to keep this manual up to date. It is hosted on Github. There you can file issues and pull requests. Back up your data! 1. Modify the hard-disk partitions 1.1. Boot a Debian live system Enable UEFI in BIOS.
How to enable UEFI in Debian Stretch installer disk?
The recovery mode of the Debian >= 9 Stretch installer disk automates all following steps in this section. Try this first. Reboot and enable UEFI in BIOS. Insert a Debian installation disk. Reboot again into the Debian installer disk and select Advanced options → Rescue mode
Which is the module for booting in UEFI mode?
First comes the partman-efi module, and this will be loaded automatically if d-i recognises it has been booted in UEFI mode. partman-efi will cope with both MS-DOS and GPT partitioned disks, but will offer to use GPT by preference on disks that are not already partitioned.