From 931b82be93b6c068a91a59f4c6b7ebb9bdfa158a Mon Sep 17 00:00:00 2001
From: Martin Whitaker <mageia@martin-whitaker.me.uk>
Date: Fri, 2 Mar 2018 17:55:03 +0000
Subject: Add support for 32-bit EFI.

---
 lib/MGA/DrakISO/BuildBoot.pm | 33 ++++++++++++++++++---------------
 lib/MGA/DrakISO/BuildISO.pm  |  2 +-
 2 files changed, 19 insertions(+), 16 deletions(-)

(limited to 'lib')

diff --git a/lib/MGA/DrakISO/BuildBoot.pm b/lib/MGA/DrakISO/BuildBoot.pm
index c499b1d..2233c2a 100644
--- a/lib/MGA/DrakISO/BuildBoot.pm
+++ b/lib/MGA/DrakISO/BuildBoot.pm
@@ -100,10 +100,12 @@ sub prepare_live_system_boot {
 sub prepare_iso_bootloader {
     my ($build) = @_;
 
+    my $arch = $build->{settings}{arch};
+
     # If the user has supplied a list of files to copy from the repository,
     # do that now. We may need some of those files to correctly auto-detect
     # the default kernel and initrd.
-    my $repo_prefix = $build->{settings}{repository} . '/' . $build->{settings}{arch} . '/';
+    my $repo_prefix = $build->{settings}{repository} . '/' . $arch . '/';
     my $copy_prefix = $build->get_build_dir . '/';
     foreach (group_by2(@{$build->{copy_from_repo}})) {
         my ($src, $dst) = @$_;
@@ -211,7 +213,7 @@ sub prepare_iso_bootloader {
     }
 
     my $title = $build->{media}{bootloader_title} // $label =~ s/-/ /gr;
-    my $mode  = $build->{settings}{arch} eq 'x86_64' ? '64-bit' : '32-bit';
+    my $mode  = $arch eq 'x86_64' ? '64-bit' : '32-bit';
 
     # If we have a theme, replace the menu title with the name of the ISO
     # (extracted from the disk label).
@@ -220,9 +222,8 @@ sub prepare_iso_bootloader {
         run_('sed', '-i', qq(s/title-text:.*/title-text: "$title ($mode)"/), $base_theme_txt);
     }
 
-    # If we are building a 32-bit ISO, we are done, as we don't support
-    # 32-bit UEFI boot.
-    return if $build->{settings}{arch} ne 'x86_64';
+    # If we are building a legacy-boot only ISO, we are done.
+    return if $build->{media}{legacy_boot_only};
 
     # Create another build directory. This will contain all the files we need
     # to exist in the /EFI directory on the ISO.
@@ -232,12 +233,14 @@ sub prepare_iso_bootloader {
 
     # If the user has supplied a grub2 image for UEFI boot, copy that,
     # otherwise build one.
-    my $bootx64_efi = $build->get_absolute_path($build->{media}{bootx64_efi});
-    if (defined $bootx64_efi) {
-        -e $bootx64_efi or die "ERROR: cannot find EFI boot image $bootx64_efi\n";
-        cp_f($bootx64_efi, $efi_boot_dir . '/bootx64.efi');
+    my $boot_efi = $build->get_absolute_path($build->{media}{boot_efi});
+    if (defined $boot_efi) {
+        -e $boot_efi or die "ERROR: cannot find EFI boot image $boot_efi\n";
+        cp_f($boot_efi, $efi_boot_dir . '/');
+    } elsif ($arch eq 'x86_64') {
+        build_grub2_boot_efi($efi_boot_dir . '/bootx64.efi', 'x86_64-efi');
     } else {
-        build_grub2_bootx64_efi($efi_boot_dir . '/bootx64.efi');
+        build_grub2_boot_efi($efi_boot_dir . '/bootia32.efi', 'i386-efi');
     }
 
     # Build a grub2 configuration file for UEFI boot. This just chains to the
@@ -250,7 +253,7 @@ sub prepare_iso_bootloader {
     if (-e $base_theme_txt) {
         my $uefi_theme_txt = $grub2_dir . "/themes/$theme_name/theme-uefi.txt";
         cp_f($base_theme_txt, $uefi_theme_txt);
-        run_('sed', '-i', qq(s/title-text:.*/title-text: "$title (UEFI)"/), $uefi_theme_txt);
+        run_('sed', '-i', qq(s/title-text:.*/title-text: "$title ($mode UEFI)"/), $uefi_theme_txt);
     }
 
     # Create another build directory for temporarily storing the ESP image.
@@ -266,7 +269,7 @@ sub prepare_iso_bootloader {
     # Now we've built the ESP image, we can delete the grub2 image. We need
     # to leave the grub2.cfg file, as DVD boot sets the initial grub2 root
     # location to the iso9960 partition, not the ESP.
-    rm_rf($efi_boot_dir . '/bootx64.efi');
+    rm_rf(glob($efi_boot_dir . '/*.efi'));
 }
 
 sub build_grub2_eltorito_img {
@@ -284,8 +287,8 @@ sub build_grub2_eltorito_img {
     );
 }
 
-sub build_grub2_bootx64_efi {
-    my ($output) = @_;
+sub build_grub2_boot_efi {
+    my ($output, $format) = @_;
 
     my @modules = qw(iso9660 fat part_msdos all_video font png gfxterm gfxmenu
                      keylayouts at_keyboard usb_keyboard configfile echo gettext
@@ -294,7 +297,7 @@ sub build_grub2_bootx64_efi {
     run_('grub2-mkimage',
         '--output', $output,
         '--prefix', '/EFI/BOOT',
-        '--format', 'x86_64-efi',
+        '--format', $format,
         @modules
     );
 }
diff --git a/lib/MGA/DrakISO/BuildISO.pm b/lib/MGA/DrakISO/BuildISO.pm
index ff77679..941050c 100644
--- a/lib/MGA/DrakISO/BuildISO.pm
+++ b/lib/MGA/DrakISO/BuildISO.pm
@@ -136,7 +136,7 @@ sub build_iso_image {
             '-boot-load-size', 4,
             '-boot-info-table',
             '--grub2-boot-info',
-            if_($arch eq 'x86_64',
+            if_(!$build->{media}{legacy_boot_only},
                 # for DVD UEFI boot
                 '--efi-boot', '--interval:appended_partition_2:all::',
                 # for USB UEFI boot
-- 
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