This rework allows to use an (efi-bootloader-chain) like this, which is able
to boot over network or local storage, depending on whether the bootloader
target has support for symbolic links:
   (operating-system
    (bootloader
      (bootloader-configuration
        (bootloader
          (efi-bootloader-chain
            grub-efi-netboot-removable-bootloader
            #:packages (list my-firmware-package
                             my-u-boot-package)
            #:files (list (plain-file "config.txt"
                                      "kernel=u-boot.bin"))
            #:hooks my-special-bootloader-profile-manipulator))
        (targets '("/booti/efi"))
        …))
    …)
* doc/guix.texi (Bootloader Configuration): Describe the new
‘grub-efi-netboot-removable-bootloader’.  Mention the file names used and that
the UEFI Boot Manager is not modified.  Advise to disable write-access over
TFTP.
* gnu/bootloader.scm (efi-bootloader-profile): Allow a list of packages and
collect everything directly in the profile, avoiding a separate collection
directory.  Renamed the profile from "bootloader-profile" to
"efi-bootloader-profile".
[bootloader-collection]: Rename to...
[efi-bootloader-profile-hook]: ... this and remove unused modules.  Do not
create the now extraneous collection directory.
(efi-bootloader-chain): Add PACKAGES and DISK-IMAGE-INSTALLER arguments.
Remove handling of the collection directory, now only calling the given
installer procedure.
* gnu/bootloader/grub.scm (make-grub-efi-netboot-installer): New helper.
(make-grub-configuration): New helper based on (grub-configuration-file).  Add
a GRUB argument, fix indentation, remove previous code retrieving GRUB from
CONFIG.
(grub-configuration-file): Make use of make-grub-configuration.
(grub-efi-configuration-file): New procedure.
(grub-cfg): New variable to replace "/boot/grub/grub.cfg".
(install-grub-efi-netboot): Remove, splitting logic to...
(make-grub-efi-netboot-installer): ... this new helper procedure, as well as
to make-grub-efi-netboot, added below.
(grub-bootloader): Adjust to use the GRUB-CFG.
(grub-efi-bootloader): Likewise.  Removed inheritance and declare all fields
explicitly.
(make-grub-efi-netboot-bootloader): New procedure.
(grub-efi-netboot-bootloader): Use it.
(grub-efi-netboot-removable-bootloader): New variable.
* gnu/packages/bootloaders.scm (make-grub-efi-netboot): New procedure.
Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
Modified-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
		
	
			
		
			
				
	
	
		
			443 lines
		
	
	
	
		
			18 KiB
		
	
	
	
		
			Scheme
		
	
	
	
	
	
			
		
		
	
	
			443 lines
		
	
	
	
		
			18 KiB
		
	
	
	
		
			Scheme
		
	
	
	
	
	
| ;;; GNU Guix --- Functional package management for GNU
 | ||
| ;;; Copyright © 2017 David Craven <david@craven.ch>
 | ||
| ;;; Copyright © 2017, 2020, 2022 Mathieu Othacehe <othacehe@gnu.org>
 | ||
| ;;; Copyright © 2017 Leo Famulari <leo@famulari.name>
 | ||
| ;;; Copyright © 2019, 2021 Ludovic Courtès <ludo@gnu.org>
 | ||
| ;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
 | ||
| ;;; Copyright © 2022 Josselin Poiret <dev@jpoiret.xyz>
 | ||
| ;;; Copyright © 2022 Reza Alizadeh Majd <r.majd@pantherx.org>
 | ||
| ;;;
 | ||
| ;;; This file is part of GNU Guix.
 | ||
| ;;;
 | ||
| ;;; GNU Guix is free software; you can redistribute it and/or modify it
 | ||
| ;;; under the terms of the GNU General Public License as published by
 | ||
| ;;; the Free Software Foundation; either version 3 of the License, or (at
 | ||
| ;;; your option) any later version.
 | ||
| ;;;
 | ||
| ;;; GNU Guix is distributed in the hope that it will be useful, but
 | ||
| ;;; WITHOUT ANY WARRANTY; without even the implied warranty of
 | ||
| ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 | ||
| ;;; GNU General Public License for more details.
 | ||
| ;;;
 | ||
| ;;; You should have received a copy of the GNU General Public License
 | ||
| ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
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| 
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| (define-module (gnu bootloader)
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|   #:use-module (gnu system file-systems)
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|   #:use-module (gnu system uuid)
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|   #:use-module (guix discovery)
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|   #:use-module (guix gexp)
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|   #:use-module (guix profiles)
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|   #:use-module (guix records)
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|   #:use-module (guix deprecation)
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|   #:use-module ((guix ui) #:select (warn-about-load-error))
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|   #:use-module (guix diagnostics)
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|   #:use-module (guix i18n)
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|   #:use-module (srfi srfi-1)
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|   #:use-module (srfi srfi-34)
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|   #:use-module (srfi srfi-35)
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|   #:use-module (ice-9 match)
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|   #:export (menu-entry
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|             menu-entry?
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|             menu-entry-label
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|             menu-entry-device
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|             menu-entry-linux
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|             menu-entry-linux-arguments
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|             menu-entry-initrd
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|             menu-entry-device-mount-point
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|             menu-entry-multiboot-kernel
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|             menu-entry-multiboot-arguments
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|             menu-entry-multiboot-modules
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|             menu-entry-chain-loader
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| 
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|             menu-entry->sexp
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|             sexp->menu-entry
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| 
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|             bootloader
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|             bootloader?
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|             bootloader-name
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|             bootloader-package
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|             bootloader-installer
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|             bootloader-disk-image-installer
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|             bootloader-configuration-file
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|             bootloader-configuration-file-generator
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| 
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|             bootloader-configuration
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|             bootloader-configuration?
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|             bootloader-configuration-bootloader
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|             bootloader-configuration-target ;deprecated
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|             bootloader-configuration-targets
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|             bootloader-configuration-menu-entries
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|             bootloader-configuration-default-entry
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|             bootloader-configuration-timeout
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|             bootloader-configuration-keyboard-layout
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|             bootloader-configuration-theme
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|             bootloader-configuration-terminal-outputs
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|             bootloader-configuration-terminal-inputs
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|             bootloader-configuration-serial-unit
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|             bootloader-configuration-serial-speed
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|             bootloader-configuration-device-tree-support?
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| 
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|             %bootloaders
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|             lookup-bootloader-by-name
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| 
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|             efi-bootloader-chain))
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| 
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| 
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| ;;;
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| ;;; Menu-entry record.
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| ;;;
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| 
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| (define-record-type* <menu-entry>
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|   menu-entry make-menu-entry
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|   menu-entry?
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|   (label           menu-entry-label)
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|   (device          menu-entry-device       ; file system uuid, label, or #f
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|                    (default #f))
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|   (device-mount-point menu-entry-device-mount-point
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|                    (default #f))
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|   (linux           menu-entry-linux
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|                    (default #f))
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|   (linux-arguments menu-entry-linux-arguments
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|                    (default '()))          ; list of string-valued gexps
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|   (initrd          menu-entry-initrd       ; file name of the initrd as a gexp
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|                    (default #f))
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|   (multiboot-kernel menu-entry-multiboot-kernel
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|                     (default #f))
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|   (multiboot-arguments menu-entry-multiboot-arguments
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|                        (default '()))      ; list of string-valued gexps
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|   (multiboot-modules menu-entry-multiboot-modules
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|                      (default '()))        ; list of multiboot commands, where
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|                                            ; a command is a list of <string>
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|   (chain-loader     menu-entry-chain-loader
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|                     (default #f)))         ; string, path of efi file
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| 
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| (define (report-menu-entry-error menu-entry)
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|   (raise
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|    (condition
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|     (&message
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|      (message
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|       (format #f (G_ "invalid menu-entry: ~a") menu-entry)))
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|     (&fix-hint
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|      (hint
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|       (G_ "Please chose only one of:
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| @enumerate
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| @item direct boot by specifying fields @code{linux},
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| @code{linux-arguments} and @code{linux-modules},
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| @item multiboot by specifying fields @code{multiboot-kernel},
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| @code{multiboot-arguments} and @code{multiboot-modules},
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| @item chain-loader by specifying field @code{chain-loader}.
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| @end enumerate"))))))
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| 
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| (define (menu-entry->sexp entry)
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|   "Return ENTRY serialized as an sexp."
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|   (define (device->sexp device)
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|     (match device
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|       ((? uuid? uuid)
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|        `(uuid ,(uuid-type uuid) ,(uuid->string uuid)))
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|       ((? file-system-label? label)
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|        `(label ,(file-system-label->string label)))
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|       (_ device)))
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|   (match entry
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|     (($ <menu-entry> label device mount-point
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|                      (? identity linux) linux-arguments (? identity initrd)
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|                      #f () () #f)
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|      `(menu-entry (version 0)
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|                   (label ,label)
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|                   (device ,(device->sexp device))
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|                   (device-mount-point ,mount-point)
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|                   (linux ,linux)
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|                   (linux-arguments ,linux-arguments)
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|                   (initrd ,initrd)))
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|     (($ <menu-entry> label device mount-point #f () #f
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|                      (? identity multiboot-kernel) multiboot-arguments
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|                      multiboot-modules #f)
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|      `(menu-entry (version 0)
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|                   (label ,label)
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|                   (device ,(device->sexp device))
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|                   (device-mount-point ,mount-point)
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|                   (multiboot-kernel ,multiboot-kernel)
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|                   (multiboot-arguments ,multiboot-arguments)
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|                   (multiboot-modules ,multiboot-modules)))
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|     (($ <menu-entry> label device mount-point #f () #f #f () ()
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|                      (? identity chain-loader))
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|      `(menu-entry (version 0)
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|                   (label ,label)
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|                   (device ,(device->sexp device))
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|                   (device-mount-point ,mount-point)
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|                   (chain-loader ,chain-loader)))
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|     (_ (report-menu-entry-error entry))))
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| 
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| (define (sexp->menu-entry sexp)
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|   "Turn SEXP, an sexp as returned by 'menu-entry->sexp', into a <menu-entry>
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| record."
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|   (define (sexp->device device-sexp)
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|     (match device-sexp
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|       (('uuid type uuid-string)
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|        (uuid uuid-string type))
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|       (('label label)
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|        (file-system-label label))
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|       (_ device-sexp)))
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|   (match sexp
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|     (('menu-entry ('version 0)
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|                   ('label label) ('device device)
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|                   ('device-mount-point mount-point)
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|                   ('linux linux) ('linux-arguments linux-arguments)
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|                   ('initrd initrd) _ ...)
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|      (menu-entry
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|       (label label)
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|       (device (sexp->device device))
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|       (device-mount-point mount-point)
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|       (linux linux)
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|       (linux-arguments linux-arguments)
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|       (initrd initrd)))
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|     (('menu-entry ('version 0)
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|                   ('label label) ('device device)
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|                   ('device-mount-point mount-point)
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|                   ('multiboot-kernel multiboot-kernel)
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|                   ('multiboot-arguments multiboot-arguments)
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|                   ('multiboot-modules multiboot-modules) _ ...)
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|      (menu-entry
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|       (label label)
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|       (device (sexp->device device))
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|       (device-mount-point mount-point)
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|       (multiboot-kernel multiboot-kernel)
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|       (multiboot-arguments multiboot-arguments)
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|       (multiboot-modules multiboot-modules)))
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|     (('menu-entry ('version 0)
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|                   ('label label) ('device device)
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|                   ('device-mount-point mount-point)
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|                   ('chain-loader chain-loader) _ ...)
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|      (menu-entry
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|       (label label)
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|       (device (sexp->device device))
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|       (device-mount-point mount-point)
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|       (chain-loader chain-loader)))))
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| 
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| 
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| ;;;
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| ;;; Bootloader record.
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| ;;;
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| 
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| ;; The <bootloader> record contains fields expressing how the bootloader
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| ;; should be installed. Every bootloader in gnu/bootloader/ directory
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| ;; has to be described by this record.
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| 
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| (define-record-type* <bootloader>
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|   bootloader make-bootloader
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|   bootloader?
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|   (name                            bootloader-name)
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|   (package                         bootloader-package)
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|   (installer                       bootloader-installer)
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|   (disk-image-installer            bootloader-disk-image-installer
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|                                    (default #f))
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|   (configuration-file              bootloader-configuration-file)
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|   (configuration-file-generator    bootloader-configuration-file-generator))
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| 
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| 
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| ;;;
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| ;;; Bootloader configuration record.
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| ;;;
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| 
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| ;; The <bootloader-configuration> record contains bootloader independant
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| ;; configuration used to fill bootloader configuration file.
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| 
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| (define-with-syntax-properties (warn-target-field-deprecation
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|                                 (value properties))
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|   (when value
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|     (warning (source-properties->location properties)
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|              (G_ "the 'target' field is deprecated, please use 'targets' \
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| instead~%")))
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|   value)
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| 
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| (define-record-type* <bootloader-configuration>
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|   bootloader-configuration make-bootloader-configuration
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|   bootloader-configuration?
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|   (bootloader
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|    bootloader-configuration-bootloader) ;<bootloader>
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|   (targets               %bootloader-configuration-targets
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|                          (default #f))     ;list of strings
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|   (target                %bootloader-configuration-target ;deprecated
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|                          (default #f)
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|                          (sanitize warn-target-field-deprecation))
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|   (menu-entries          bootloader-configuration-menu-entries
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|                          (default '()))   ;list of <menu-entry>
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|   (default-entry         bootloader-configuration-default-entry
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|                          (default 0))     ;integer
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|   (timeout               bootloader-configuration-timeout
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|                          (default 5))     ;seconds as integer
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|   (keyboard-layout       bootloader-configuration-keyboard-layout
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|                          (default #f))    ;<keyboard-layout> | #f
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|   (theme                 bootloader-configuration-theme
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|                          (default #f))    ;bootloader-specific theme
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|   (terminal-outputs      bootloader-configuration-terminal-outputs
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|                          (default '(gfxterm)))   ;list of symbols
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|   (terminal-inputs       bootloader-configuration-terminal-inputs
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|                          (default '()))   ;list of symbols
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|   (serial-unit           bootloader-configuration-serial-unit
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|                          (default #f))    ;integer | #f
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|   (serial-speed          bootloader-configuration-serial-speed
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|                          (default #f))    ;integer | #f
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|   (device-tree-support?  bootloader-configuration-device-tree-support?
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|                          (default #t)))   ;boolean
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| 
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| (define-deprecated (bootloader-configuration-target config)
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|   bootloader-configuration-targets
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|   (%bootloader-configuration-target config))
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| 
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| (define (bootloader-configuration-targets config)
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|   (or (%bootloader-configuration-targets config)
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|       ;; TODO: Remove after the deprecated 'target' field is removed.
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|       (list (%bootloader-configuration-target config))
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|       ;; XXX: At least the GRUB installer (see (gnu bootloader grub)) has this
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|       ;; peculiar behavior of installing fonts and GRUB modules when DEVICE is #f,
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|       ;; hence the default value of '(#f) rather than '().
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|       (list #f)))
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| 
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| 
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| ;;;
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| ;;; Bootloaders.
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| ;;;
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| 
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| (define (bootloader-modules)
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|   "Return the list of bootloader modules."
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|   (all-modules (map (lambda (entry)
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|                       `(,entry . "gnu/bootloader"))
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|                     %load-path)
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|                #:warn warn-about-load-error))
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| 
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| (define %bootloaders
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|   ;; The list of publically-known bootloaders.
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|   (delay (fold-module-public-variables (lambda (obj result)
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|                                          (if (bootloader? obj)
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|                                              (cons obj result)
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|                                              result))
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|                                        '()
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|                                        (bootloader-modules))))
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| 
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| (define (lookup-bootloader-by-name name)
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|   "Return the bootloader called NAME."
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|   (or (find (lambda (bootloader)
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|               (eq? name (bootloader-name bootloader)))
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|             (force %bootloaders))
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|       (leave (G_ "~a: no such bootloader~%") name)))
 | ||
| 
 | ||
| (define (efi-bootloader-profile packages files hooks)
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|   "Creates a profile from the lists of PACKAGES and FILES from the store.
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| This profile is meant to be used by the bootloader-installer.
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| 
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| FILES is a list of file or directory names from the store, which will be
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| symlinked into the profile.  If a directory name ends with '/', then the
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| directory content instead of the directory itself will be symlinked into the
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| profile.
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| 
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| FILES may contain file like objects produced by procedures like plain-file,
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| local-file, etc., or package contents produced with file-append.
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| 
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| HOOKS lists additional hook functions to modify the profile."
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|   (define (efi-bootloader-profile-hook manifest)
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|     (define build
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|         (with-imported-modules '((guix build utils))
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|           #~(begin
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|             (use-modules ((guix build utils)
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|                           #:select (mkdir-p strip-store-file-name))
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|                          ((ice-9 ftw)
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|                           #:select (scandir))
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|                          ((srfi srfi-1)
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|                           #:select (append-map every remove))
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|                          ((srfi srfi-26)
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|                           #:select (cut)))
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|             (define (symlink-to file directory transform)
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|               "Creates a symlink to FILE named (TRANSFORM FILE) in DIRECTORY."
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|               (symlink file (string-append directory "/" (transform file))))
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|             (define (directory-content directory)
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|               "Creates a list of absolute path names inside DIRECTORY."
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|               (map (lambda (name)
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|                      (string-append directory name))
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|                    (or (scandir directory (lambda (name)
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|                                             (not (member name '("." "..")))))
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|                        '())))
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|             (define name-ends-with-/? (cut string-suffix? "/" <>))
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|             (define (name-is-store-entry? name)
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|               "Return #t if NAME is a direct store entry and nothing inside."
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|               (not (string-index (strip-store-file-name name) #\/)))
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|             (let* ((files '#$files)
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|                    (directories (filter name-ends-with-/? files))
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|                    (names-from-directories
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|                     (append-map (lambda (directory)
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|                                   (directory-content directory))
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|                                 directories))
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|                    (names (append names-from-directories
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|                                   (remove name-ends-with-/? files))))
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|               (mkdir-p #$output)
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|               (if (every file-exists? names)
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|                   (begin
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|                     (for-each (lambda (name)
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|                                (symlink-to name #$output
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|                                             (if (name-is-store-entry? name)
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|                                                 strip-store-file-name
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|                                                 basename)))
 | ||
|                               names)
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|                     #t)
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|                   #f)))))
 | ||
| 
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|     (gexp->derivation "efi-bootloader-profile"
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|                       build
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|                       #:local-build? #t
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|                       #:substitutable? #f
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|                       #:properties
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|                       `((type . profile-hook)
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|                         (hook . efi-bootloader-profile-hook))))
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| 
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|   (profile (content (packages->manifest packages))
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|            (name "efi-bootloader-profile")
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|            (hooks (cons efi-bootloader-profile-hook hooks))
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|            (locales? #f)
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|            (allow-collisions? #f)
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|            (relative-symlinks? #f)))
 | ||
| 
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| (define* (efi-bootloader-chain final-bootloader
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|                                #:key
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|                                (packages '())
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|                                (files '())
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|                                (hooks '())
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|                                installer
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|                                disk-image-installer)
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|   "Define a chain of bootloaders with the FINAL-BOOTLOADER, optional PACKAGES,
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| and optional directories and files from the store given in the list of FILES.
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| 
 | ||
| The package of the FINAL-BOOTLOADER and all PACKAGES and FILES will be placed
 | ||
| in an efi-bootloader-profile, which will be passed to the INSTALLER.
 | ||
| 
 | ||
| FILES may contain file-like objects produced by procedures like plain-file,
 | ||
| local-file, etc., or package contents produced with file-append.
 | ||
| 
 | ||
| If a directory name in FILES ends with '/', then the directory content instead
 | ||
| of the directory itself will be symlinked into the efi-bootloader-profile.
 | ||
| 
 | ||
| The procedures in the HOOKS list can be used to further modify the bootloader
 | ||
| profile.  It is possible to pass a single function instead of a list.
 | ||
| 
 | ||
| If the INSTALLER argument is used, then this gexp procedure will be called to
 | ||
| install the efi-bootloader-profile.  Otherwise the installer of the
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| FINAL-BOOTLOADER will be called.
 | ||
| 
 | ||
| If the DISK-IMAGE-INSTALLER is used, then this gexp procedure will be called
 | ||
| to install the efi-bootloader-profile into a disk image.  Otherwise the
 | ||
| disk-image-installer of the FINAL-BOOTLOADER will be called."
 | ||
|   (bootloader
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|     (inherit final-bootloader)
 | ||
|     (name "efi-bootloader-chain")
 | ||
|     (package
 | ||
|      (efi-bootloader-profile (cons (bootloader-package final-bootloader)
 | ||
|                                    packages)
 | ||
|                              files
 | ||
|                              (if (list? hooks)
 | ||
|                                  hooks
 | ||
|                                  (list hooks))))
 | ||
|     (installer
 | ||
|      (or installer
 | ||
|          (bootloader-installer final-bootloader)))
 | ||
|     (disk-image-installer
 | ||
|      (or disk-image-installer
 | ||
|          (bootloader-disk-image-installer final-bootloader)))))
 |