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# Copyright (c) 2006..2011 - OpenSLX GmbH
#
# This program is free software distributed under the GPL version 2.
# See http://openslx.org/COPYING
#
# If you have any feedback please consult http://openslx.org/feedback and
# send your suggestions, praise, or complaints to feedback@openslx.org
#
# General information about OpenSLX can be found at http://openslx.org/
# -----------------------------------------------------------------------------
# MakeInitialRamFS::Engine::Preboot.pm
# - provides driver engine for MakeInitialRamFS API, implementing the
# base of all preboot variants.
# -----------------------------------------------------------------------------
package OpenSLX::MakeInitRamFS::Engine::Preboot;
use strict;
use warnings;
use base qw(OpenSLX::MakeInitRamFS::Engine::Base);
use OpenSLX::Basics;
use OpenSLX::Utils;
################################################################################
### implementation methods
################################################################################
sub _collectCMDs
{
my $self = shift;
$self->{CMDs} = [];
$self->_setupBuildPath();
$self->_writeInitramfsSetup();
$self->_writeSlxSystemConf();
$self->_copyRootfs();
$self->_copyPrebootSpecificFiles();
$self->{distro}->applyChanges($self);
$self->_copyKernelModules();
$self->_createInitRamFS();
return;
}
sub _setupBuildPath
{
my $self = shift;
my $buildPath = "$openslxConfig{'temp-path'}/slx-initramfs";
$self->addCMD("rm -rf $buildPath");
my @stdFolders = qw(
bin
dev
etc
lib
mnt
proc
root
sbin
sys
tmp
var/lib
var/run
);
$self->addCMD(
'mkdir -p ' . join(' ', map { "$buildPath/$_"; } @stdFolders)
);
$self->{'build-path'} = $buildPath;
return;
}
sub _writeInitramfsSetup
{
my $self = shift;
# generate initramfs-setup file containing attributes that are
# relevant for the initramfs only (before there's a root-FS) -
# this override adds the name of the client such that the booting
# system has an ID to use for accessing the corresponding boot environment
# on the server
my $initramfsAttrs = {
'host_name' => 'slx-client', # just to have something at all
'ramfs_miscmods' => $self->{attrs}->{ramfs_miscmods} || '',
'ramfs_nicmods' => $self->{attrs}->{ramfs_nicmods} || '',
'ramfs_firmmods' => $self->{attrs}->{ramfs_firmmods} || '',
'preboot_id' => $self->{'preboot-id'} || '',
'boot_uri' => $self->{'boot-uri'} || '',
};
my $content = "# attributes set by slxconfig-demuxer:\n";
foreach my $attr (keys %$initramfsAttrs) {
$content .= qq[$attr="$initramfsAttrs->{$attr}"\n];
}
$self->addCMD( {
file => "$self->{'build-path'}/etc/initramfs-setup",
content => $content
} );
return;
}
sub _copyRootfs
{
my $self = shift;
my $rootfs = "$openslxConfig{'base-path'}/share/rootfs";
my @excludes = qw(
);
# exclude strace unless this system is in debug mode
if (!$self->{'debug-level'}) {
push @excludes, 'strace';
}
my $exclOpts = join ' ', map { "--exclude $_" } @excludes;
$self->addCMD("rsync $exclOpts -rlpt --numeric-ids $rootfs/ $self->{'build-path'}");
return 1;
}
sub _copyPrebootSpecificFiles
{
my $self = shift;
# write secondary rootfs-layer (including init) on top of base layer
my $prebootRootfs
= "$openslxConfig{'base-path'}/share/boot-env/preboot/rootfs";
$self->addCMD("rsync -rlpt --numeric-ids $prebootRootfs/ $self->{'build-path'}");
return 1;
}
1;
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