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[bug#41011] [PATCH] gnu: grub: Support for network boot via tftp/nfs.
From: |
Stefan |
Subject: |
[bug#41011] [PATCH] gnu: grub: Support for network boot via tftp/nfs. |
Date: |
Sat, 5 Sep 2020 13:25:24 +0200 |
* gnu/bootloader/grub.scm (grub-net-bootloader): New bootloader for
network booting via tftp.
(install-grub-net): New bootloader installer for tftp.
---
gnu/bootloader/grub.scm | 79 ++++++++++++++++++++++++++++++++++++++---
1 file changed, 75 insertions(+), 4 deletions(-)
diff --git a/gnu/bootloader/grub.scm b/gnu/bootloader/grub.scm
index b905ae360c..8f078dc2ac 100644
--- a/gnu/bootloader/grub.scm
+++ b/gnu/bootloader/grub.scm
@@ -24,7 +24,7 @@
(define-module (gnu bootloader grub)
#:use-module (guix records)
- #:use-module ((guix utils) #:select (%current-system))
+ #:use-module ((guix utils) #:select (%current-system %current-target-system))
#:use-module (guix gexp)
#:use-module (gnu artwork)
#:use-module (gnu bootloader)
@@ -46,8 +46,11 @@
grub-theme-color-highlight
grub-theme-gfxmode
+ install-grub-net
+
grub-bootloader
grub-efi-bootloader
+ grub-net-bootloader
grub-mkrescue-bootloader
grub-minimal-bootloader
@@ -501,11 +504,73 @@ fi~%"))))
"--bootloader-id=Guix"
"--efi-directory" target-esp))))
+(define (install-grub-net subdir)
+ "Define a grub-net bootloader installer for installation in SUBDIR,
+which is usually \"efi/boot\" or \"efi/Guix\"."
+ (let* ((arch (car (string-split (or (%current-target-system)
+ (%current-system))
+ #\-)))
+ (efi-bootloader-link (string-append "/boot"
+ (match arch
+ ("i686" "ia32")
+ ("x86_64" "x64")
+ ("arm" "arm")
+ ("armhf" "arm")
+ ("aarch64" "aa64")
+ ("riscv" "riscv32")
+ ("riscv64" "riscv64"))
+ ".efi"))
+ (efi-bootloader (string-append (match arch
+ ("i686" "i386")
+ ("x86_64" "x86_64")
+ ("arm" "arm")
+ ("armhf" "arm")
+ ("aarch64" "arm64")
+ ("riscv" "riscv32")
+ ("riscv64" "riscv64"))
+ "-efi/core.efi")))
+ #~(lambda (bootloader target mount-point)
+ "Install GRUB as e.g. \"bootx64.efi\" or \"bootarm64.efi\" \"into
+SUBDIR, which is usually \"efi/boot\" or \"efi/Guix\" below the directory
TARGET
+for the system whose root is mounted at MOUNT-POINT."
+ (let* (;; Use target-depth and subdir-depth to construct links to
+ ;; "../gnu" and "../../../boot/grub/grub.cfg" with the correct
+ ;; number of "../". Note: This doesn't consider ".." or ".",
+ ;; which may appear inside target or subdir.
+ (target-depth (length (delete "" (string-split target #\/))))
+ (subdir-depth (length (delete "" (string-split #$subdir #\/))))
+ (up1 (string-join (make-list target-depth "..") "/" 'suffix))
+ (up2 (string-join (make-list subdir-depth "..") "/" 'suffix))
+ (net-dir (string-append mount-point target "/"))
+ (store-name (car (delete "" (string-split bootloader #\/))))
+ (store (string-append up1 store-name))
+ (store-link (string-append net-dir store-name))
+ (grub-cfg (string-append up1 up2 "boot/grub/grub.cfg"))
+ (grub-cfg-link (string-append net-dir #$subdir "/grub.cfg"))
+ (efi-bootloader-link
+ (string-append net-dir #$subdir #$efi-bootloader-link)))
+ ;; Tell 'grub-install' that there might be a LUKS-encrypted /boot or
+ ;; root partition.
+ (setenv "GRUB_ENABLE_CRYPTODISK" "y")
+ (invoke/quiet (string-append bootloader "/bin/grub-mknetdir")
+ (string-append "--net-directory=" net-dir)
+ (string-append "--subdir=" #$subdir))
+ (false-if-exception (delete-file store-link))
+ (symlink store store-link)
+ (false-if-exception (delete-file grub-cfg-link))
+ (symlink grub-cfg grub-cfg-link)
+ (false-if-exception (delete-file efi-bootloader-link))
+ (symlink #$efi-bootloader efi-bootloader-link)))))
+
^L
;;;
;;; Bootloader definitions.
;;;
+;;; For all these grub-bootloader variables the path to /boot/grub/grub.cfg
+;;; is fixed. Inheriting and overwriting the field 'configuration-file' will
+;;; break 'guix system delete-generations', 'guix system switch-generation',
+;;; and 'guix system roll-back'.
(define grub-bootloader
(bootloader
@@ -516,12 +581,12 @@ fi~%"))))
(configuration-file "/boot/grub/grub.cfg")
(configuration-file-generator grub-configuration-file)))
-(define* grub-minimal-bootloader
+(define grub-minimal-bootloader
(bootloader
(inherit grub-bootloader)
(package grub-minimal)))
-(define* grub-efi-bootloader
+(define grub-efi-bootloader
(bootloader
(inherit grub-bootloader)
(installer install-grub-efi)
@@ -529,7 +594,13 @@ fi~%"))))
(name 'grub-efi)
(package grub-efi)))
-(define* grub-mkrescue-bootloader
+(define grub-net-bootloader
+ (bootloader
+ (inherit grub-efi-bootloader)
+ (name 'grub-net-bootloader)
+ (installer (install-grub-net "efi/Guix"))))
+
+(define grub-mkrescue-bootloader
(bootloader
(inherit grub-efi-bootloader)
(package grub-hybrid)))
--
2.26.0
- [bug#41011] [PATCH] gnu: grub: Support for network boot via tftp/nfs.,
Stefan <=
- [bug#41011] [PATCH] gnu: grub: Support for network boot via tftp/nfs., Stefan, 2020/09/06
- [bug#41011] [PATCH] gnu: grub: Support for network boot via tftp/nfs., Danny Milosavljevic, 2020/09/06
- [bug#41011] [PATCH] gnu: grub: Support for network boot via tftp/nfs., Danny Milosavljevic, 2020/09/06
- [bug#41011] [PATCH] gnu: grub: Support for network boot via tftp/nfs., Stefan, 2020/09/07
- [bug#41011] [PATCH] gnu: grub: Support for network boot via tftp/nfs., Danny Milosavljevic, 2020/09/08
- [bug#41011] [PATCH] gnu: grub: Support for network boot via TFTP., Stefan, 2020/09/13
- [bug#41011] [PATCH] gnu: grub: Support for network boot via TFTP., Efraim Flashner, 2020/09/14
- [bug#41011] [PATCH] gnu: grub: Support for network boot via TFTP., Stefan, 2020/09/15
- [bug#41011] [PATCH] gnu: grub: Support for network boot via TFTP., Efraim Flashner, 2020/09/16
- [bug#41011] [PATCH] gnu: grub: Support for network boot via TFTP., Stefan, 2020/09/19