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authorMathieu Othacehe <m.othacehe@gmail.com>2017-05-15 22:24:18 +0200
committerMathieu Othacehe <m.othacehe@gmail.com>2017-05-16 14:41:01 +0200
commitb09a8da4a2e50845a297e041762f3ff9e649c047 (patch)
tree41111b45d2af2ec06c0a7262f390bfd5e91639c1 /gnu/bootloader/extlinux.scm
parentce92d269fea0a2bfac0ac20414f77127d2f07500 (diff)
downloadguix-b09a8da4a2e50845a297e041762f3ff9e649c047.tar
guix-b09a8da4a2e50845a297e041762f3ff9e649c047.tar.gz
bootloader: Add extlinux support.
* gnu/bootloader.scm: New file. * gnu/bootloader/extlinux.scm: New file. * gnu/bootloader/grub.scm: New file. * gnu/local.mk: Build new files. * gnu/system.scm: Adapt to new bootloader api. * gnu/scripts/system.scm: Adapt to new bootloader api. * gnu.scm: Remove (gnu system grub) and replace by (gnu bootloader) and (gnu bootloader grub) modules. * gnu/system/grub.scm: Moved content to gnu/bootloader/grub.scm. * gnu/system/vm: Replace (gnu system grub) module by (gnu bootloader). * gnu/tests.scm: Ditto. * gnu/tests/nfs.scm: Ditto.
Diffstat (limited to 'gnu/bootloader/extlinux.scm')
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diff --git a/gnu/bootloader/extlinux.scm b/gnu/bootloader/extlinux.scm
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+;;; 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
+ syslinux-bootloader
+
+ extlinux-configuration
+ syslinux-configuration))
+
+(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 (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 "
+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)))