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# Copyright (C) 2005 Mandriva
# Olivier Blin <oblin@mandriva.com>
# Copyright (C) 2017-2018 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA.
# SYNOPSIS
# --------
# This package defines a set of alternative methods for mounting the loopback
# filesystems when booting a Live system. 'volatile_squash_union' is the only
# method that has been tested with drakiso. The other methods were inherited
# from the original draklive and may no longer be needed.
package MGA::DrakISO::Mounts;
use strict;
use MDK::Common;
use Exporter;
our @ISA = qw(Exporter);
our @EXPORT = qw(simple_union, squash_rw_union, squash_union, volatile_squash_union);
our $dir_distrib_sqfs = {
mountpoint => '/distrib',
type => 'squashfs',
path => '/distrib',
# perl -MMDK::Common -e 'print map_index { (32767 - $::i) . " $_" } grep { !m,^/(?:dev|proc|sys|live/distrib), } uniq(<>)' < bootlog.list > config/distrib.sort
sort => "config/distrib.sort",
build_from => '/',
};
my $dir_memory = {
mountpoint => '/memory',
type => 'tmpfs',
mount_opts => 'mode=755',
};
my $dir_modules = {
mountpoint => '/modules',
type => 'modules',
path => '/modules',
list => 'modules.lst',
};
#- use distro default
our $default = {
dirs => [],
};
our $simple_union = {
root => '/union',
overlay => 'overlay',
dirs => [
{
mountpoint => '/media',
type => 'plain',
},
$dir_memory,
],
};
our $squash_rw_union = {
root => '/union',
overlay => 'overlay',
dirs => [
$dir_distrib_sqfs,
{
mountpoint => '/media/system',
type => 'plain',
},
],
};
sub volatile_squash_union {
my ($o_modules) = @_;
{
root => '/union',
overlay => 'overlay',
dirs => [
$dir_distrib_sqfs,
if_($o_modules, $dir_modules),
$dir_memory,
],
};
}
sub squash_union {
my ($default_size, $o_min_size, $o_modules) = @_;
{
root => '/union',
overlay => 'overlay',
dirs => [
$dir_distrib_sqfs,
if_($o_modules, $dir_modules),
{
mountpoint => '/system',
type => 'loopfs',
pre_allocate => $default_size,
if_(defined $o_min_size, min_size => $o_min_size),
fs => 'ext2',
path => '/system'
},
{
mountpoint => '/system',
type => 'tmpfs',
fallback => 1,
},
],
};
}
1;
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