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# Copyright (C) 2005 Mandriva
# Olivier Blin <oblin@mandriva.com>
# Copyright (C) 2017 Mageia
# Martin Whitaker <mageia@martin-whitaker.me.uk>
#
# This program 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 2, or (at your option)
# any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
package MGA::DrakISO::BuildISO;
use strict;
use MDK::Common;
use common;
use MGA::DrakISO::Live;
use MGA::DrakISO::Loopback;
use MGA::DrakISO::Utils;
use MGA::DrakISO::BuildLoop;
use Exporter;
our @ISA = qw(Exporter);
our @EXPORT = qw(build_live_iso);
###############################################################################
# Live System
###############################################################################
sub build_live_iso {
my ($live) = @_;
my $label = $live->{media}->get_media_label or die "the source device must be described by a label\n";
my $mbr_image = $live->get_absolute_path($live->{media}{mbr_boot_img}) // '/usr/lib/grub/i386-pc/boot_hybrid.img';
-e $mbr_image or die "cannot find MBR boot image $mbr_image\n";
my $esp_image = $live->get_builddir('images') . '/esp.img';
-e $esp_image or die "cannot find ESP image $esp_image\n";
my $dest = $live->get_builddir('dist') . '/' . $live->get_name . '.iso';
mkdir_p(dirname($dest));
build_iso_image(
$live,
$dest,
$label,
$mbr_image,
$esp_image,
'/boot=' . $live->get_builddir('boot'),
if_($live->{settings}{arch} eq 'x86_64',
'/EFI=' . $live->get_builddir('EFI'),
),
(
map {
'/loopbacks' . $_ . '=' . $live->get_builddir('loopbacks') . $_;
} list_selected_loopbacks($live)
),
if_($live->{media}{files},
map {
$_ . '=' . $live->get_builddir('files') . '/' . $_;
} all($live->get_builddir('files'))
),
);
}
sub list_selected_loopbacks {
my ($live) = @_;
my @pack = $live->{settings}{pack} ? @{$live->{packs}{$live->{settings}{pack}} || []} : ();
my @pack_modules = grep { member($_->{name}, @pack) } list_loopback_modules($live);
(map { $loop_types{$_->{type}}{is_loopback} && $_->{path} ? $_->{path} . $loop_types{$_->{type}}{extension} : () } @{$live->{mount}{dirs} || []}),
(map { '/modules/' . $_->{name} . $loop_types{$_->{type}}{extension} } @pack_modules);
}
###############################################################################
# Generic
###############################################################################
# This builds a hybrid ISO capable of both legacy and UEFI boot. The
# ISO contains a primary iso9660 partition (which is the only thing
# visible when booting from DVD) and a secondary ESP partition (which
# is only used for USB UEFI boot).
#
# For legacy boot, the system boots the grub2 El Torito image. For DVD
# boot, this is located via the El Torito catalogue. For USB boot, it
# is located via the grub2 MBR hybrid boot image, which is stored in
# the MBR. In both cases the initial grub2 root location is the iso9660
# partition, so the initial grub2 configuration file will be read from
# that partition.
#
# For UEFI boot, the system boots the grub2 EFI image. For DVD boot,
# this is located via the El Torito catalogue, and we store it in the
# iso9660 partition. For USB boot, it must be located in the /EFI/BOOT
# directory in the ESP. For DVD boot the initial grub2 root location is
# the iso9660 partition, for USB boot it is the ESP partition, and the
# initial grub2 configuration file will be located accordingly.
#
sub build_iso_image {
my ($live, $dest, $label, $mbr_image, $esp_image, @opts) = @_;
run_('xorrisofs',
'-pad', '-l', '-R', '-J',
'-V', $label,
'-graft-points',
'-hide-rr-moved',
'--sort-weight', 0, '/',
'--sort-weight', 1, '/boot',
# for hybrid MBR boot
'--grub2-mbr', $mbr_image,
'-b', '/boot/grub2/eltorito.img',
'-no-emul-boot',
'-boot-load-size', 4,
'-boot-info-table',
'--grub2-boot-info',
if_($live->{settings}{arch} eq 'x86_64',
# for DVD UEFI boot
'-eltorito-alt-boot',
'-e', '/EFI/BOOT/bootx64.efi',
'-no-emul-boot',
# for USB UEFI boot
'-part_like_isohybrid',
'-iso_mbr_part_type', '0x00',
'-append_partition', 2, '0xef', $esp_image,
),
if_($dest, '-o', $dest),
@opts,
) or die "unable to run xorrisofs\n";
if ($dest) {
my $dir = dirname($dest);
my $filename = basename($dest);
run_('mgaiso-addmd5', '>', '/dev/null', '2>', '/dev/null', $dest);
run_({ chdir => $dir }, 'md5sum', '>', $dest . '.md5', $filename);
run_({ chdir => $dir }, 'sha1sum', '>', $dest . '.sha1', $filename);
run_({ chdir => $dir }, 'sha512sum', '>', $dest . '.sha512', $filename);
run_({ chdir => $dir }, 'date', '>', $dir . '/DATE.txt');
if (my $suffix = $live->get_set_suffix) {
if (my ($prefix, $ext) = $dest =~ /(.*)(\.[^.]+)$/) {
my $link = $prefix . $suffix . $ext;
linkf($dest, $link);
print "linked as $link\n";
}
}
}
}
1;
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