guix/gnu/bootloader/extlinux.scm
Mathieu Othacehe 8b22107e5d
bootloader: Use menu-entry to define custom bootloader entries.
* gnu/bootloader.scm (<menu-entry>): New variable. Export associated getters,
This record is extracted from grub module.
* gnu/bootloader/extlinux.scm (extlinux-configuration-file): Use
  menu-entry->boot-parameters to convert menu-entry records to
  boot-parameters.
* gnu/bootloader/grub.scm (<menu-entry>): Remove.
(boot-parameters->menu-entry): Remove.
(grub-configuration-file): Use boot-parameters to create configuration
entries.
* gnu/system.scm (menu-entry->boot-parameters): New exported procedure.
2017-06-08 16:29:29 +02:00

122 lines
4.2 KiB
Scheme
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017 David Craven <david@craven.ch>
;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
;;;
;;; 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/>.
(define-module (gnu bootloader extlinux)
#:use-module (gnu bootloader)
#:use-module (gnu system)
#:use-module (gnu packages bootloaders)
#:use-module (guix gexp)
#:use-module (guix monads)
#:use-module (guix records)
#:use-module (guix utils)
#:export (extlinux-bootloader))
(define* (extlinux-configuration-file config entries
#:key
(system (%current-system))
(old-entries '()))
"Return the U-Boot configuration file corresponding to CONFIG, a
<u-boot-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."
(define all-entries
(append entries (map menu-entry->boot-parameters
(bootloader-configuration-menu-entries config))))
(define (boot-parameters->gexp params)
(let ((label (boot-parameters-label params))
(kernel (boot-parameters-kernel params))
(kernel-arguments (boot-parameters-kernel-arguments params))
(initrd (boot-parameters-initrd params)))
#~(format port "LABEL ~a
MENU LABEL ~a
KERNEL ~a
FDTDIR ~a/lib/dtbs
INITRD ~a
APPEND ~a
~%"
#$label #$label
#$kernel #$kernel #$initrd
(string-join (list #$@kernel-arguments)))))
(define builder
#~(call-with-output-file #$output
(lambda (port)
(let ((timeout #$(bootloader-configuration-timeout config)))
(format port "# This file was generated from your GuixSD configuration. Any changes
# will be lost upon reconfiguration.
UI menu.c32
PROMPT ~a
TIMEOUT ~a~%"
(if (> timeout 0) 1 0)
;; timeout is expressed in 1/10s of seconds.
(* 10 timeout))
#$@(map boot-parameters->gexp all-entries)
#$@(if (pair? old-entries)
#~((format port "~%")
#$@(map boot-parameters->gexp old-entries)
(format port "~%"))
#~())))))
(gexp->derivation "extlinux.conf" builder))
;;;
;;; Install procedures.
;;;
(define dd
#~(lambda (bs count if of)
(zero? (system* "dd"
(string-append "bs=" (number->string bs))
(string-append "count=" (number->string count))
(string-append "if=" if)
(string-append "of=" of)))))
(define install-extlinux
#~(lambda (bootloader device mount-point)
(let ((extlinux (string-append bootloader "/sbin/extlinux"))
(install-dir (string-append mount-point "/boot/extlinux"))
(syslinux-dir (string-append bootloader "/share/syslinux")))
(for-each (lambda (file)
(install-file file install-dir))
(find-files syslinux-dir "\\.c32$"))
(unless (and (zero? (system* extlinux "--install" install-dir))
(#$dd 440 1 (string-append syslinux-dir "/mbr.bin") device))
(error "failed to install SYSLINUX")))))
;;;
;;; Bootloader definitions.
;;;
(define extlinux-bootloader
(bootloader
(name 'extlinux)
(package syslinux)
(installer install-extlinux)
(configuration-file "/boot/extlinux/extlinux.conf")
(configuration-file-generator extlinux-configuration-file)))