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#1 2024-10-15 07:08:44

mac41
Member
Registered: 2023-06-22
Posts: 10

Boot partition in a BIOS/MBR system for use with GRUB & LUKS

I've been following guides on the wiki for setting up a BIOS/MBR system with full disk encryption (#LUKS on a partition), with GRUB as bootloader.However, I noticed that at no point do any of the guides provide clear instructions on creating the necessary boot partition for this scenario. Since the boot partition must be unencrypted and accessible during boot, I’m wondering if this step is missing or assumed.  Specifically, for a BIOS system with an MBR partition table, how should I create the boot partition in fdisk before the formatting step? On a BIOS/GPT setup with GRUB for example, the partition type must be set to BIOS boot, but this is not my case.

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#2 2024-10-15 07:33:26

Head_on_a_Stick
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From: The Wirral
Registered: 2014-02-20
Posts: 8,339
Website

Re: Boot partition in a BIOS/MBR system for use with GRUB & LUKS

GRUB can handle an encrypted /boot/:

https://wiki.archlinux.org/title/GRUB#Encrypted_/boot

mac41 wrote:

On a BIOS/GPT setup with GRUB for example, the partition type must be set to BIOS boot

A BIOS boot partition is not a /boot/ partition, it is an area reserved to hold GRUB's core.img and is not part of the installed system.


Para todos todo, para nosotros nada

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