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| author | Tomas Volf <wolf@wolfsden.cz> | 2024-01-11 18:35:40 +0100 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2024-01-14 23:00:03 +0100 |
| commit | 086850e5b2b4a1744565fe83624d256524b64a49 (patch) | |
| tree | c02752272e989134c35dc6dc67735915edc1f25a /gnu/bootloader | |
| parent | d082312ef7adfea69c79d30ef947817b39832161 (diff) | |
| download | guix-086850e5b2b4a1744565fe83624d256524b64a49.tar.gz | |
bootloader: grub: Add support for loading an additional initrd.
In order to be able to provide decryption keys for the LUKS device, they need to be available in the initial ram disk. However they cannot be stored inside the usual initrd, since it is stored in the store and being a world-readable (as files in the store are) is not a desired property for a initrd containing decryption keys. This commit adds an option to load additional initrd during the boot, one that is not stored inside the store and therefore can contain secrets. Since only grub supports encrypted /boot, only grub is modified to use the extra-initrd. There is no use case for the other bootloaders. * doc/guix.texi (Bootloader Configuration): Describe the new extra-initrd field. * gnu/bootloader.scm (<bootloader-configuration>): Add extra-initrd field. * gnu/bootloader/grub.scm (make-grub-configuration): Use the extra-initrd field. Signed-off-by: Ludovic Courtès <ludo@gnu.org> Change-Id: I995989bb623bb594ccdafbf4a1a6de941bd4189f
Diffstat (limited to 'gnu/bootloader')
| -rw-r--r-- | gnu/bootloader/grub.scm | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gnu/bootloader/grub.scm b/gnu/bootloader/grub.scm index 5f3fcd7074..2723eda5f4 100644 --- a/gnu/bootloader/grub.scm +++ b/gnu/bootloader/grub.scm @@ -9,6 +9,7 @@ ;;; Copyright © 2020 Stefan <stefan-guix@vodafonemail.de> ;;; Copyright © 2022 Karl Hallsby <karl@hallsby.com> ;;; Copyright © 2022 Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org> +;;; Copyright © 2024 Tomas Volf <~@wolfsden.cz> ;;; ;;; This file is part of GNU Guix. ;;; @@ -386,7 +387,8 @@ when booting a root file system on a Btrfs subvolume." store-directory-prefix)) (initrd (normalize-file (menu-entry-initrd entry) device-mount-point - store-directory-prefix))) + store-directory-prefix)) + (extra-initrd (bootloader-configuration-extra-initrd config))) ;; Here DEVICE is the store and DEVICE-MOUNT-POINT is its mount point. ;; Use the right file names for LINUX and INITRD in case ;; DEVICE-MOUNT-POINT is not "/", meaning that the store is on a @@ -397,11 +399,12 @@ when booting a root file system on a Btrfs subvolume." #~(format port "menuentry ~s { ~a linux ~a ~a - initrd ~a + initrd ~a ~a }~%" #$label #$(grub-root-search device linux) #$linux (string-join (list #$@arguments)) + (or #$extra-initrd "") #$initrd))) (multiboot-kernel (let* ((kernel (menu-entry-multiboot-kernel entry)) |