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bug#30311: efi-less grub install fails

From: Danny Milosavljevic
Subject: bug#30311: efi-less grub install fails
Date: Mon, 26 Mar 2018 23:15:45 +0200

Any news on how to proceed on this grub target thing?

I think the patch below is harmless enough and makes each grub package
self-consistent (the non-efi grub doesn't try to use efi, the grub-efi
tries to use efi and grub-hybrid tries to use efi, then).

>From 263b1dc0de9643094bc41f4be47b4b2317e95d7c Mon Sep 17 00:00:00 2001
From: Danny Milosavljevic <address@hidden>
Date: Sun, 18 Feb 2018 17:30:48 +0100
Subject: [PATCH] gnu: grub: Make sure that non-EFI grub doesn't try to use
Tags: patch

* gnu/packages/bootloader.scm (grub)[arguments]<:phases>
[patch-/sys/firmware/efi-out]: New phase.
(grub-efi)[arguments]<:phases>[patch-/sys/firmware/efi-out]: Delete phase.

Fixes <https://debbugs.gnu.org/cgi/bugreport.cgi?bug=30311>.
 gnu/packages/bootloaders.scm | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/gnu/packages/bootloaders.scm b/gnu/packages/bootloaders.scm
index 59eb22f24..c09829e17 100644
--- a/gnu/packages/bootloaders.scm
+++ b/gnu/packages/bootloaders.scm
@@ -103,6 +103,11 @@
                      (copy-file (assoc-ref inputs "unifont") "unifont.bdf.gz")
                      (system* "gunzip" "unifont.bdf.gz")
+                  (add-after 'unpack 'patch-/sys/firmware/efi-out
+                   (lambda _
+                     (substitute* "grub-core/osdep/linux/platform.c"
+                      (("/sys/firmware/efi") "/sys/firmware/non-efi"))
+                     #t))
                   (add-before 'check 'disable-flaky-test
                     (lambda _
                       ;; This test is unreliable. For more information, see:
@@ -177,6 +182,7 @@ menu to select one of the installed operating systems.")
             `(cons "--with-platform=efi" ,flags))
            ((#:phases phases)
             `(modify-phases ,phases
+               (delete 'patch-/sys/firmware/efi-out)
                (add-after 'patch-stuff 'use-absolute-efibootmgr-path
                  (lambda* (#:key inputs #:allow-other-keys)
                    (substitute* "grub-core/osdep/unix/platform.c"

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