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.

1 files changed, 3 insertions, 1 deletions

diff --git a/gnu.scm b/gnu.scm
index 932e4cdd580..913ce616006 100644
--- a/gnu.scm
+++ b/gnu.scm
@@ -1,6 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015 Joshua S. Grant <jgrant@parenthetical.io>
+;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -34,7 +35,8 @@
       '((gnu system)
         (gnu system mapped-devices)
         (gnu system file-systems)
-        (gnu system grub)                         ; 'grub-configuration'
+        (gnu bootloader)
+        (gnu bootloader grub)
         (gnu system pam)
         (gnu system shadow)                       ; 'user-account'
         (gnu system linux-initrd)