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-rw-r--r--gnu/bootloader/grub.scm368
1 files changed, 212 insertions, 156 deletions
diff --git a/gnu/bootloader/grub.scm b/gnu/bootloader/grub.scm
index 8c5b5eac0c..b905ae360c 100644
--- a/gnu/bootloader/grub.scm
+++ b/gnu/bootloader/grub.scm
@@ -2,9 +2,10 @@
;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2016 Chris Marusich <cmmarusich@gmail.com>
;;; Copyright © 2017 Leo Famulari <leo@famulari.name>
-;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
+;;; Copyright © 2017, 2020 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2019, 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;; Copyright © 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2020 Stefan <stefan-guix@vodafonemail.de>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -37,19 +38,13 @@
#:use-module (ice-9 regex)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-2)
- #:export (grub-image
- grub-image?
- grub-image-aspect-ratio
- grub-image-file
-
- grub-theme
+ #:export (grub-theme
grub-theme?
- grub-theme-images
+ grub-theme-image
+ grub-theme-resolution
grub-theme-color-normal
grub-theme-color-highlight
-
- %background-image
- %default-theme
+ grub-theme-gfxmode
grub-bootloader
grub-efi-bootloader
@@ -64,119 +59,102 @@
;;;
;;; Code:
-(define (strip-mount-point mount-point file)
- "Strip MOUNT-POINT from FILE, which is a gexp or other lowerable object
-denoting a file name."
- (match mount-point
- ((? string? mount-point)
- (if (string=? mount-point "/")
- file
- #~(let ((file #$file))
- (if (string-prefix? #$mount-point file)
- (substring #$file #$(string-length mount-point))
- file))))
- (#f file)))
-
-(define-record-type* <grub-image>
- grub-image make-grub-image
- grub-image?
- (aspect-ratio grub-image-aspect-ratio ;rational number
- (default 4/3))
- (file grub-image-file)) ;file-valued gexp (SVG)
+(define* (normalize-file file mount-point store-directory-prefix)
+ "Strip MOUNT-POINT and prepend STORE-DIRECTORY-PREFIX, if any, to FILE, a
+G-expression or other lowerable object denoting a file name."
+
+ (define (strip-mount-point mount-point file)
+ (if mount-point
+ (if (string=? mount-point "/")
+ file
+ #~(let ((file #$file))
+ (if (string-prefix? #$mount-point file)
+ (substring #$file #$(string-length mount-point))
+ file)))
+ file))
+
+ (define (prepend-store-directory-prefix store-directory-prefix file)
+ (if store-directory-prefix
+ #~(string-append #$store-directory-prefix #$file)
+ file))
+
+ (prepend-store-directory-prefix store-directory-prefix
+ (strip-mount-point mount-point file)))
+
+
(define-record-type* <grub-theme>
+ ;; Default theme contributed by Felipe López.
grub-theme make-grub-theme
grub-theme?
- (images grub-theme-images
- (default '())) ;list of <grub-image>
+ (image grub-theme-image
+ (default (file-append %artwork-repository
+ "/grub/GuixSD-fully-black-4-3.svg")))
+ (resolution grub-theme-resolution
+ (default '(1024 . 768)))
(color-normal grub-theme-color-normal
- (default '((fg . cyan) (bg . blue))))
+ (default '((fg . light-gray) (bg . black))))
(color-highlight grub-theme-color-highlight
- (default '((fg . white) (bg . blue))))
- (gfxmode grub-gfxmode
+ (default '((fg . yellow) (bg . black))))
+ (gfxmode grub-theme-gfxmode
(default '("auto")))) ;list of string
-(define %background-image
- (grub-image
- (aspect-ratio 4/3)
- (file (file-append %artwork-repository
- "/grub/GuixSD-fully-black-4-3.svg"))))
-
-(define %default-theme
- ;; Default theme contributed by Felipe López.
- (grub-theme
- (images (list %background-image))
- (color-highlight '((fg . yellow) (bg . black)))
- (color-normal '((fg . light-gray) (bg . black))))) ;XXX: #x303030
-
;;;
;;; Background image & themes.
;;;
(define (bootloader-theme config)
- "Return user defined theme in CONFIG if defined or %default-theme
+ "Return user defined theme in CONFIG if defined or a default theme
otherwise."
- (or (bootloader-configuration-theme config) %default-theme))
+ (or (bootloader-configuration-theme config) (grub-theme)))
-(define* (svg->png svg #:key width height)
- "Build a PNG of HEIGHT x WIDTH from SVG."
+(define* (image->png image #:key width height)
+ "Build a PNG of HEIGHT x WIDTH from IMAGE if its file suffix is \".svg\".
+Otherwise the picture in IMAGE is just copied."
(computed-file "grub-image.png"
(with-imported-modules '((gnu build svg))
(with-extensions (list guile-rsvg guile-cairo)
- #~(begin
- (use-modules (gnu build svg))
- (svg->png #+svg #$output
- #:width #$width
- #:height #$height))))))
-
-(define* (grub-background-image config #:key (width 1024) (height 768))
- "Return the GRUB background image defined in CONFIG with a ratio of
-WIDTH/HEIGHT, or #f if none was found."
- (let* ((ratio (/ width height))
- (image (find (lambda (image)
- (= (grub-image-aspect-ratio image) ratio))
- (grub-theme-images
- (bootloader-theme config)))))
+ #~(if (string-suffix? ".svg" #+image)
+ (begin
+ (use-modules (gnu build svg))
+ (svg->png #+image #$output
+ #:width #$width
+ #:height #$height))
+ (copy-file #+image #$output))))))
+
+(define* (grub-background-image config)
+ "Return the GRUB background image defined in CONFIG or #f if none was found.
+If the suffix of the image file is \".svg\", then it is converted into a PNG
+file with the resolution provided in CONFIG."
+ (let* ((theme (bootloader-theme config))
+ (image (grub-theme-image theme)))
(and image
- (svg->png (grub-image-file image)
- #:width width #:height height))))
+ (match (grub-theme-resolution theme)
+ (((? number? width) . (? number? height))
+ (image->png image #:width width #:height height))
+ (_ #f)))))
(define* (eye-candy config store-device store-mount-point
- #:key system port)
- "Return a gexp that writes to PORT (a port-valued gexp) the
-'grub.cfg' part concerned with graphics mode, background images, colors, and
-all that. STORE-DEVICE designates the device holding the store, and
-STORE-MOUNT-POINT is its mount point; these are used to determine where the
-background image and fonts must be searched for. SYSTEM must be the target
-system string---e.g., \"x86_64-linux\"."
- (define setup-gfxterm-body
- (let ((gfxmode
- (or (and-let* ((theme (bootloader-configuration-theme config))
- (gfxmode (grub-gfxmode theme)))
- (string-join gfxmode ";"))
- "auto")))
-
- ;; Intel and EFI systems need to be switched into graphics mode, whereas
- ;; most other modern architectures have no other mode and therefore
- ;; don't need to be switched.
-
- ;; XXX: Do we really need to restrict to x86 systems? We could imitate
- ;; what the GRUB default configuration does and decide based on whether
- ;; a user provided 'gfxterm' in the terminal-outputs field of their
- ;; bootloader-configuration record.
- (if (string-match "^(x86_64|i[3-6]86)-" system)
- (format #f "
- set gfxmode=~a
- insmod all_video
- insmod gfxterm~%" gfxmode)
- "")))
-
+ #:key store-directory-prefix port)
+ "Return a gexp that writes to PORT (a port-valued gexp) the 'grub.cfg' part
+concerned with graphics mode, background images, colors, and all that.
+STORE-DEVICE designates the device holding the store, and STORE-MOUNT-POINT is
+its mount point; these are used to determine where the background image and
+fonts must be searched for. STORE-DIRECTORY-PREFIX is a directory prefix to
+prepend to any store file name."
(define (setup-gfxterm config font-file)
(if (memq 'gfxterm (bootloader-configuration-terminal-outputs config))
- #~(format #f "if loadfont ~a; then
- setup_gfxterm
-fi~%" #+font-file)
+ #~(format #f "
+if loadfont ~a; then
+ set gfxmode=~a
+ insmod all_video
+ insmod gfxterm
+fi~%"
+ #+font-file
+ #$(string-join
+ (grub-theme-gfxmode (bootloader-theme config))
+ ";"))
""))
(define (theme-colors type)
@@ -186,16 +164,17 @@ fi~%" #+font-file)
(symbol->string (assoc-ref colors 'bg)))))
(define font-file
- (strip-mount-point store-mount-point
- (file-append grub "/share/grub/unicode.pf2")))
+ (normalize-file (file-append grub "/share/grub/unicode.pf2")
+ store-mount-point
+ store-directory-prefix))
(define image
- (grub-background-image config))
+ (normalize-file (grub-background-image config)
+ store-mount-point
+ store-directory-prefix))
(and image
#~(format #$port "
-function setup_gfxterm {~a}
-
# Set 'root' to the partition that contains /gnu/store.
~a
@@ -210,12 +189,11 @@ else
set menu_color_normal=cyan/blue
set menu_color_highlight=white/blue
fi~%"
- #$setup-gfxterm-body
#$(grub-root-search store-device font-file)
#$(setup-gfxterm config font-file)
#$(grub-setup-io config)
- #$(strip-mount-point store-mount-point image)
+ #$image
#$(theme-colors grub-theme-color-normal)
#$(theme-colors grub-theme-color-highlight))))
@@ -323,52 +301,84 @@ code."
(define* (grub-configuration-file config entries
#:key
(system (%current-system))
- (old-entries '()))
+ (old-entries '())
+ store-directory-prefix)
"Return the GRUB configuration file corresponding to CONFIG, a
<bootloader-configuration> object, and where the store is available at
STORE-FS, a <file-system> object. OLD-ENTRIES is taken to be a list of menu
-entries corresponding to old generations of the system."
+entries corresponding to old generations of the system.
+STORE-DIRECTORY-PREFIX may be used to specify a store prefix, as is required
+when booting a root file system on a Btrfs subvolume."
(define all-entries
(append entries (bootloader-configuration-menu-entries config)))
(define (menu-entry->gexp entry)
- (let ((device (menu-entry-device entry))
- (device-mount-point (menu-entry-device-mount-point entry))
- (label (menu-entry-label entry))
- (kernel (menu-entry-linux entry))
- (arguments (menu-entry-linux-arguments entry))
- (initrd (menu-entry-initrd entry)))
- ;; Here DEVICE is the store and DEVICE-MOUNT-POINT is its mount point.
- ;; Use the right file names for KERNEL and INITRD in case
- ;; DEVICE-MOUNT-POINT is not "/", meaning that the store is on a
- ;; separate partition.
- (let ((kernel (strip-mount-point device-mount-point kernel))
- (initrd (strip-mount-point device-mount-point initrd)))
- #~(format port "menuentry ~s {
+ (let ((label (menu-entry-label entry))
+ (linux (menu-entry-linux entry))
+ (device (menu-entry-device entry))
+ (device-mount-point (menu-entry-device-mount-point entry)))
+ (if linux
+ (let ((arguments (menu-entry-linux-arguments entry))
+ (linux (normalize-file linux
+ device-mount-point
+ store-directory-prefix))
+ (initrd (normalize-file (menu-entry-initrd entry)
+ device-mount-point
+ store-directory-prefix)))
+ ;; 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
+ ;; separate partition.
+
+ ;; When BTRFS-SUBVOLUME-FILE-NAME is defined, prepend it the linux and
+ ;; initrd paths, to allow booting from a Btrfs subvolume.
+ #~(format port "menuentry ~s {
~a
linux ~a ~a
initrd ~a
}~%"
+ #$label
+ #$(grub-root-search device linux)
+ #$linux (string-join (list #$@arguments))
+ #$initrd))
+ (let ((kernel (menu-entry-multiboot-kernel entry))
+ (arguments (menu-entry-multiboot-arguments entry))
+ (modules (menu-entry-multiboot-modules entry))
+ (root-index 1)) ; XXX EFI will need root-index 2
+ #~(format port "
+menuentry ~s {
+ multiboot ~a root=device:hd0s~a~a~a
+}~%"
#$label
- #$(grub-root-search device kernel)
- #$kernel (string-join (list #$@arguments))
- #$initrd))))
- (define sugar
- (eye-candy config
- (menu-entry-device (first all-entries))
- (menu-entry-device-mount-point (first all-entries))
- #:system system
- #:port #~port))
+ #$kernel
+ #$root-index (string-join (list #$@arguments) " " 'prefix)
+ (string-join (map string-join '#$modules)
+ "\n module " 'prefix))))))
+
+ (define (sugar)
+ (let* ((entry (first all-entries))
+ (device (menu-entry-device entry))
+ (mount-point (menu-entry-device-mount-point entry)))
+ (eye-candy config
+ device
+ mount-point
+ #:store-directory-prefix store-directory-prefix
+ #:port #~port)))
(define keyboard-layout-config
- (let ((layout (bootloader-configuration-keyboard-layout config))
- (grub (bootloader-package
- (bootloader-configuration-bootloader config))))
- #~(let ((keymap #$(and layout
- (keyboard-layout-file layout #:grub grub))))
- (when keymap
- (format port "\
+ (let* ((layout (bootloader-configuration-keyboard-layout config))
+ (grub (bootloader-package
+ (bootloader-configuration-bootloader config)))
+ (keymap* (and layout
+ (keyboard-layout-file layout #:grub grub)))
+ (keymap (and keymap*
+ (if store-directory-prefix
+ #~(string-append #$store-directory-prefix
+ #$keymap*)
+ keymap*))))
+ #~(when #$keymap
+ (format port "\
insmod keylayouts
-keymap ~a~%" keymap)))))
+keymap ~a~%" #$keymap))))
(define builder
#~(call-with-output-file #$output
@@ -377,7 +387,7 @@ keymap ~a~%" keymap)))))
"# This file was generated from your Guix configuration. Any changes
# will be lost upon reconfiguration.
")
- #$sugar
+ #$(sugar)
#$keyboard-layout-config
(format port "
set default=~a
@@ -413,18 +423,65 @@ fi~%"))))
(define install-grub
#~(lambda (bootloader device mount-point)
- ;; Install GRUB on DEVICE which is mounted at MOUNT-POINT.
(let ((grub (string-append bootloader "/sbin/grub-install"))
(install-dir (string-append mount-point "/boot")))
- ;; Tell 'grub-install' that there might be a LUKS-encrypted /boot or
- ;; root partition.
- (setenv "GRUB_ENABLE_CRYPTODISK" "y")
-
- ;; Hide potentially confusing messages from the user, such as
- ;; "Installing for i386-pc platform."
- (invoke/quiet grub "--no-floppy" "--target=i386-pc"
- "--boot-directory" install-dir
- device))))
+ ;; Install GRUB on DEVICE which is mounted at MOUNT-POINT. If DEVICE
+ ;; is #f, then we populate the disk-image rooted at MOUNT-POINT.
+ (if device
+ (begin
+ ;; Tell 'grub-install' that there might be a LUKS-encrypted
+ ;; /boot or root partition.
+ (setenv "GRUB_ENABLE_CRYPTODISK" "y")
+
+ ;; Hide potentially confusing messages from the user, such as
+ ;; "Installing for i386-pc platform."
+ (invoke/quiet grub "--no-floppy" "--target=i386-pc"
+ "--boot-directory" install-dir
+ device))
+ ;; When creating a disk-image, only install GRUB modules.
+ (copy-recursively (string-append bootloader "/lib/")
+ install-dir)))))
+
+(define install-grub-disk-image
+ #~(lambda (bootloader root-index image)
+ ;; Install GRUB on the given IMAGE. The root partition index is
+ ;; ROOT-INDEX.
+ (let ((grub-mkimage
+ (string-append bootloader "/bin/grub-mkimage"))
+ (modules '("biosdisk" "part_msdos" "fat" "ext2"))
+ (grub-bios-setup
+ (string-append bootloader "/sbin/grub-bios-setup"))
+ (root-device (format #f "hd0,msdos~a" root-index))
+ (boot-img (string-append bootloader "/lib/grub/i386-pc/boot.img"))
+ (device-map "device.map"))
+
+ ;; Create a minimal, standalone GRUB image that will be written
+ ;; directly in the MBR-GAP (space between the end of the MBR and the
+ ;; first partition).
+ (apply invoke grub-mkimage
+ "-O" "i386-pc"
+ "-o" "core.img"
+ "-p" (format #f "(~a)/boot/grub" root-device)
+ modules)
+
+ ;; Create a device mapping file.
+ (call-with-output-file device-map
+ (lambda (port)
+ (format port "(hd0) ~a~%" image)))
+
+ ;; Copy the default boot.img, that will be written on the MBR sector
+ ;; by GRUB-BIOS-SETUP.
+ (copy-file boot-img "boot.img")
+
+ ;; Install both the "boot.img" and the "core.img" files on the given
+ ;; IMAGE. On boot, the MBR sector will execute the minimal GRUB
+ ;; written in the MBR-GAP. GRUB configuration and missing modules will
+ ;; be read from ROOT-DEVICE.
+ (invoke grub-bios-setup
+ "-m" device-map
+ "-r" root-device
+ "-d" "."
+ image))))
(define install-grub-efi
#~(lambda (bootloader efi-dir mount-point)
@@ -455,21 +512,20 @@ fi~%"))))
(name 'grub)
(package grub)
(installer install-grub)
+ (disk-image-installer install-grub-disk-image)
(configuration-file "/boot/grub/grub.cfg")
(configuration-file-generator grub-configuration-file)))
-(define grub-minimal-bootloader
+(define* grub-minimal-bootloader
(bootloader
- (name 'grub)
- (package grub-minimal)
- (installer install-grub)
- (configuration-file "/boot/grub/grub.cfg")
- (configuration-file-generator grub-configuration-file)))
+ (inherit grub-bootloader)
+ (package grub-minimal)))
(define* grub-efi-bootloader
(bootloader
(inherit grub-bootloader)
(installer install-grub-efi)
+ (disk-image-installer #f)
(name 'grub-efi)
(package grub-efi)))
generated by cgit v1.2.3 (git 2.45.2) at 2024-09-03 04:40:55 +0000