124 lines
4.2 KiB
Scheme
124 lines
4.2 KiB
Scheme
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2017 David Craven <david@craven.ch>
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;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (gnu bootloader extlinux)
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#:use-module (gnu bootloader)
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#:use-module (gnu system)
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#:use-module (gnu packages bootloaders)
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#:use-module (guix gexp)
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#:use-module (guix monads)
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#:use-module (guix records)
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#:use-module (guix utils)
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#:export (extlinux-bootloader
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syslinux-bootloader
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extlinux-configuration
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syslinux-configuration))
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(define* (extlinux-configuration-file config entries
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#:key
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(system (%current-system))
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(old-entries '()))
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"Return the U-Boot configuration file corresponding to CONFIG, a
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<u-boot-configuration> object, and where the store is available at STORE-FS, a
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<file-system> object. OLD-ENTRIES is taken to be a list of menu entries
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corresponding to old generations of the system."
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(define all-entries
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(append entries (bootloader-configuration-menu-entries config)))
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(define (boot-parameters->gexp params)
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(let ((label (boot-parameters-label params))
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(kernel (boot-parameters-kernel params))
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(kernel-arguments (boot-parameters-kernel-arguments params))
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(initrd (boot-parameters-initrd params)))
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#~(format port "LABEL ~a
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MENU LABEL ~a
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KERNEL ~a
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FDTDIR ~a/lib/dtbs
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INITRD ~a
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APPEND ~a
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~%"
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#$label #$label
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#$kernel #$kernel #$initrd
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(string-join (list #$@kernel-arguments)))))
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(define builder
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#~(call-with-output-file #$output
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(lambda (port)
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(let ((timeout #$(bootloader-configuration-timeout config)))
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(format port "
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UI menu.c32
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PROMPT ~a
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TIMEOUT ~a~%"
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(if (> timeout 0) 1 0)
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;; timeout is expressed in 1/10s of seconds.
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(* 10 timeout))
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#$@(map boot-parameters->gexp all-entries)
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#$@(if (pair? old-entries)
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#~((format port "~%")
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#$@(map boot-parameters->gexp old-entries)
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(format port "~%"))
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#~())))))
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(gexp->derivation "extlinux.conf" builder))
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;;;
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;;; Install procedures.
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;;;
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(define dd
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#~(lambda (bs count if of)
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(zero? (system* "dd"
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(string-append "bs=" (number->string bs))
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(string-append "count=" (number->string count))
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(string-append "if=" if)
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(string-append "of=" of)))))
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(define install-extlinux
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#~(lambda (bootloader device mount-point)
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(let ((extlinux (string-append bootloader "/sbin/extlinux"))
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(install-dir (string-append mount-point "/boot/extlinux"))
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(syslinux-dir (string-append bootloader "/share/syslinux")))
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(for-each (lambda (file)
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(install-file file install-dir))
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(find-files syslinux-dir "\\.c32$"))
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(unless (and (zero? (system* extlinux "--install" install-dir))
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(#$dd 440 1 (string-append syslinux-dir "/mbr.bin") device))
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(error "failed to install SYSLINUX")))))
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;;;
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;;; Bootloader definitions.
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;;;
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(define extlinux-bootloader
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(bootloader
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(name 'extlinux)
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(package syslinux)
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(installer install-extlinux)
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(configuration-file "/boot/extlinux/extlinux.conf")
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(configuration-file-generator extlinux-configuration-file)))
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