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image: Add support for 32bit UEFI.

* gnu/bootloader/grub.scm (grub-efi32-bootloader): New variable.
(install-grub-efi32): New variable.
* gnu/build/bootloader.scm (install-efi): Add a 'targets' keyword
argument.
(install-efi-loader): Likewise.
* gnu/build/image.scm (initialize-efi32-partition): New procedure.
* gnu/packages/bootloaders.scm (grub-efi32): New variable.
* gnu/system/image.scm (esp32-partition): New variable
(efi32-disk-image): New variable.
(efi32-raw-image-type): New variable.
(system-disk-image)[partition-image]: Set '#:grub-efi32' when
calling the partition initializer.

Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>
Denis 'GNUtoo' Carikli 2022-06-17 23:18:35 -06:00 committed by Mathieu Othacehe
parent 242fad357e
commit 62c86c8391
No known key found for this signature in database
GPG Key ID: 8354763531769CA6
5 changed files with 102 additions and 13 deletions

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@ -8,6 +8,7 @@
;;; Copyright © 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;; Copyright © 2020 Stefan <stefan-guix@vodafonemail.de>
;;; Copyright © 2022 Karl Hallsby <karl@hallsby.com>
;;; Copyright © 2022 Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
;;;
;;; This file is part of GNU Guix.
;;;
@ -57,6 +58,7 @@
grub-bootloader
grub-efi-bootloader
grub-efi-removable-bootloader
grub-efi32-bootloader
grub-efi-netboot-bootloader
grub-mkrescue-bootloader
grub-minimal-bootloader
@ -636,6 +638,29 @@ fi~%"))))
"--bootloader-id=Guix"
"--efi-directory" target-esp)))))
(define install-grub-efi32
#~(lambda (bootloader efi-dir mount-point)
;; There is nothing useful to do when called in the context of a disk
;; image generation.
(when efi-dir
;; Install GRUB onto the EFI partition mounted at EFI-DIR, for the
;; system whose root is mounted at MOUNT-POINT.
(let ((grub-install (string-append bootloader "/sbin/grub-install"))
(install-dir (string-append mount-point "/boot"))
;; When installing Guix, it's common to mount EFI-DIR below
;; MOUNT-POINT rather than /boot/efi on the live image.
(target-esp (if (file-exists? (string-append mount-point efi-dir))
(string-append mount-point efi-dir)
efi-dir)))
;; Tell 'grub-install' that there might be a LUKS-encrypted /boot or
;; root partition.
(setenv "GRUB_ENABLE_CRYPTODISK" "y")
(invoke/quiet grub-install "--boot-directory" install-dir
"--bootloader-id=Guix"
(cond ((target-x86?) "--target=i386-efi")
((target-arm?) "--target=arm-efi"))
"--efi-directory" target-esp)))))
(define (install-grub-efi-netboot subdir)
"Define a grub-efi-netboot bootloader installer for installation in SUBDIR,
which is usually efi/Guix or efi/boot."
@ -768,6 +793,13 @@ considered for security aspects."
(name 'grub-efi-removable-bootloader)
(installer install-grub-efi-removable)))
(define grub-efi32-bootloader
(bootloader
(inherit grub-efi-bootloader)
(installer install-grub-efi32)
(name 'grub-efi32)
(package grub-efi32)))
(define grub-efi-netboot-bootloader
(bootloader
(inherit grub-efi-bootloader)

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@ -1,6 +1,8 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2019 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2022 Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
;;; Copyright © 2022 Timothy Sample <samplet@ngyro.com>
;;;
;;; This file is part of GNU Guix.
;;;
@ -54,8 +56,12 @@
;;; EFI bootloader.
;;;
(define (install-efi grub grub-config esp)
"Write a self-contained GRUB EFI loader to the mounted ESP using GRUB-CONFIG."
(define* (install-efi grub grub-config esp #:key targets)
"Write a self-contained GRUB EFI loader to the mounted ESP using
GRUB-CONFIG.
If TARGETS is set, use its car as the GRUB image format and its cdr as
the output filename. Otherwise, use defaults for the host platform."
(let* ((system %host-type)
;; Hard code the output location to a well-known path recognized by
;; compliant firmware. See "3.5.1.1 Removable Media Boot Behaviour":
@ -63,14 +69,15 @@
(grub-mkstandalone (string-append grub "/bin/grub-mkstandalone"))
(efi-directory (string-append esp "/EFI/BOOT"))
;; Map grub target names to boot file names.
(efi-targets (cond ((string-prefix? "x86_64" system)
'("x86_64-efi" . "BOOTX64.EFI"))
((string-prefix? "i686" system)
'("i386-efi" . "BOOTIA32.EFI"))
((string-prefix? "armhf" system)
'("arm-efi" . "BOOTARM.EFI"))
((string-prefix? "aarch64" system)
'("arm64-efi" . "BOOTAA64.EFI")))))
(efi-targets (or targets
(cond ((string-prefix? "x86_64" system)
'("x86_64-efi" . "BOOTX64.EFI"))
((string-prefix? "i686" system)
'("i386-efi" . "BOOTIA32.EFI"))
((string-prefix? "armhf" system)
'("arm-efi" . "BOOTARM.EFI"))
((string-prefix? "aarch64" system)
'("arm64-efi" . "BOOTAA64.EFI"))))))
;; grub-mkstandalone requires a TMPDIR to prepare the firmware image.
(setenv "TMPDIR" esp)
@ -81,9 +88,12 @@
;; Graft the configuration file onto the image.
(string-append "boot/grub/grub.cfg=" grub-config))))
(define (install-efi-loader grub-efi esp)
(define* (install-efi-loader grub-efi esp #:key targets)
"Install in ESP directory the given GRUB-EFI bootloader. Configure it to
load the Grub bootloader located in the 'Guix_image' root partition."
load the Grub bootloader located in the 'Guix_image' root partition.
If TARGETS is set, use its car as the GRUB image format and its cdr as
the output filename. Otherwise, use defaults for the host platform."
(let ((grub-config "grub.cfg"))
(call-with-output-file grub-config
(lambda (port)
@ -97,5 +107,6 @@ load the Grub bootloader located in the 'Guix_image' root partition."
insmod part_gpt~@
search --set=root --label Guix_image~@
configfile /boot/grub/grub.cfg~%")))
(install-efi grub-efi grub-config esp)
(install-efi grub-efi grub-config esp #:targets targets)
(delete-file grub-config)))

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@ -6,6 +6,7 @@
;;; Copyright © 2020, 2022 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2020 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2022 Pavel Shlyak <p.shlyak@pantherx.org>
;;; Copyright © 2022 Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
;;;
;;; This file is part of GNU Guix.
;;;
@ -27,6 +28,7 @@
#:use-module (guix build syscalls)
#:use-module (guix build utils)
#:use-module (guix store database)
#:use-module (guix utils)
#:use-module (gnu build bootloader)
#:use-module (gnu build install)
#:use-module (gnu build linux-boot)
@ -41,6 +43,7 @@
convert-disk-image
genimage
initialize-efi-partition
initialize-efi32-partition
initialize-root-partition
make-iso9660-image))
@ -169,6 +172,17 @@ produced by #:references-graphs. Pass WAL-MODE? to call-with-database."
"Install in ROOT directory, an EFI loader using GRUB-EFI."
(install-efi-loader grub-efi root))
(define* (initialize-efi32-partition root
#:key
grub-efi32
#:allow-other-keys)
"Install in ROOT directory, an EFI 32bit loader using GRUB-EFI32."
(install-efi-loader grub-efi32 root
#:targets (cond ((target-x86?)
'("i386-efi" . "BOOTIA32.EFI"))
((target-arm?)
'("arm-efi" . "BOOTARM.EFI")))))
(define* (initialize-root-partition root
#:key
bootcfg

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@ -15,6 +15,7 @@
;;; Copyright © 2020, 2021 Pierre Langlois <pierre.langlois@gmx.com>
;;; Copyright © 2021 Vincent Legoll <vincent.legoll@gmail.com>
;;; Copyright © 2021 Brice Waegeneire <brice@waegenei.re>
;;; Copyright © 2022 Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
;;;
;;; This file is part of GNU Guix.
;;;
@ -332,6 +333,18 @@ menu to select one of the installed operating systems.")
"/bin/mcopy\"")))
#t))))))))))
(define-public grub-efi32
(package
(inherit grub-efi)
(name "grub-efi32")
(synopsis "GRand Unified Boot loader (UEFI 32bit version)")
(arguments
`(,@(substitute-keyword-arguments (package-arguments grub-efi)
((#:configure-flags flags
''()) `(cons* ,(cond ((target-x86?) "--target=i386")
((target-arm?) "--target=arm"))
,flags)))))))
;; Because grub searches hardcoded paths it's easiest to just build grub
;; again to make it find both grub-pc and grub-efi. There is a command
;; line argument which allows you to specify ONE platform - but

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@ -2,6 +2,7 @@
;;; Copyright © 2020, 2021 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;; Copyright © 2022 Pavel Shlyak <p.shlyak@pantherx.org>
;;; Copyright © 2022 Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
;;;
;;; This file is part of GNU Guix.
;;;
@ -66,6 +67,7 @@
root-label
esp-partition
esp32-partition
root-partition
efi-disk-image
@ -75,6 +77,7 @@
image-with-os
efi-raw-image-type
efi32-raw-image-type
qcow2-image-type
iso-image-type
uncompressed-iso-image-type
@ -110,6 +113,11 @@
(flags '(esp))
(initializer (gexp initialize-efi-partition))))
(define esp32-partition
(partition
(inherit esp-partition)
(initializer (gexp initialize-efi32-partition))))
(define root-partition
(partition
(size 'guess)
@ -123,6 +131,11 @@
(format 'disk-image)
(partitions (list esp-partition root-partition))))
(define efi32-disk-image
(image
(format 'disk-image)
(partitions (list esp32-partition root-partition))))
(define iso9660-image
(image
(format 'iso9660)
@ -164,6 +177,11 @@ set to the given OS."
(name 'efi-raw)
(constructor (cut image-with-os efi-disk-image <>))))
(define efi32-raw-image-type
(image-type
(name 'efi32-raw)
(constructor (cut image-with-os efi32-disk-image <>))))
(define qcow2-image-type
(image-type
(name 'qcow2)
@ -376,6 +394,7 @@ used in the image."
#$(image-shared-store? image))
#:system-directory #$os
#:grub-efi #+grub-efi
#:grub-efi32 #+grub-efi32
#:bootloader-package
#+(bootloader-package bootloader)
#:bootloader-installer