#!/usr/bin/perl use lib qw(/usr/lib/libDrakX); use Getopt::Long; use common; use bootloader; $::isStandalone = 1; #- not using standalone which messes with @ARGV and usage c::openlog('bootloader-config' . "[$$]"); $ENV{PATH} = "/sbin:/usr/sbin:$ENV{PATH}"; my %options = ( 'action=s' => \ (my $action), 'label=s' => \ (my $label), 'chainload=s' => \ (my $chainload), 'image=s' => \ (my $image), 'kernel-version=s' => \ (my $kernel_version), 'initrd-options=s' => \ (my $initrd_options), 'no-short-name' => \ (my $no_short_name), 'no-entry' => \ (my $no_entry), 'no-launch' => \ (my $no_launch), 'no-initrd' => \ (my $no_initrd), ); GetOptions(%options) && $action or die <<'EOF'; usage: bootloader-config --action add-kernel (--image <vmlinuz> | --kernel-version <2.6.xxx>) [--label <...>] [--no-short-name] [--initrd-options <options>] bootloader-config --action remove-kernel (--image <vmlinuz> | --kernel-version <2.6.xxx>) bootloader-config --action add-entry (--image <image> | --chainload <device>) --label <...> bootloader-config --action remove-entry (--image <image> | --chainload <device> | --label <...>) bootloader-config --action update-splash bootloader-config --action remove-splash bootloader-config --action rebuild-initrds EOF my @known_actions = qw(add-kernel remove-kernel update-splash remove-splash rebuild-initrds detectloader add-entry remove-entry add-resume2); $action && member($action, @known_actions) or die "<action> must be one of " . join(' ', @known_actions) . "\n"; if ($image) { if (my $ver = bootloader::vmlinuz2version($image)) { if ($kernel_version) { $kernel_version eq $ver or die "$kernel_version and $ver do not match (hint: do not pass both --image and --kernel-version)\n"; } else { $kernel_version = $ver; } } $image = "/boot/$image" if $image !~ m!^/!; } elsif ($kernel_version) { $image = "/boot/vmlinuz-$kernel_version"; } my $all_hds = fsedit::get_hds(); fs::get_info_from_fstab($all_hds); my $bootloader = bootloader::read($all_hds); if (!$bootloader) { if (member($action, 'add-kernel', 'remove-kernel')) { warn "Cannot find a boot loader installed. Only taking care of initrd\n"; } else { die "Cannot find a boot loader installed\n"; } } $action =~ s/-/_/g; $::{$action}->(); #-############################################################################### sub remove_now_broken_boot_symlinks() { foreach (glob("/boot/vmlinuz*"), glob("/boot/initrd*")) { -l $_ && !-e $_ or next; log::l("removing now broken symlink $_"); unlink $_; } } sub remove_kernel() { unlink "/lib/modules/$kernel_version/build"; unlink "/lib/modules/$kernel_version/source"; remove_now_broken_boot_symlinks(); if (!$bootloader) { #- removing the initrd for weird configs where no mdv bootloader is configured my $kernel_str = bootloader::vmlinuz2kernel_str($image) or die "bad kernel name $image\n"; my $initrd_long = bootloader::kernel_str2initrd_long($kernel_str); unlink "/boot/$initrd_long"; return; } my %proposed_labels; my @new_entries; my ($to_remove, $to_keep) = partition { if ($_->{kernel_or_dev} && $_->{kernel_or_dev} eq $image) { 1; } else { my $vmlinuz = $_->{kernel_or_dev} && bootloader::expand_vmlinuz_symlink($_->{kernel_or_dev}); if ($vmlinuz && "/boot/$vmlinuz" eq $image) { #- eg: removing kernel XXX and entry "linux" has /boot/vmlinuz -> vmlinuz-XXX #- so finding out which kernel still installed is better suited to use label "linux" if (!%proposed_labels) { %proposed_labels = bootloader::get_kernels_and_labels_before_kernel_remove($vmlinuz); } if (my $kernel_str = $proposed_labels{$_->{label}}) { push @new_entries, [ $kernel_str, $_ ]; } 1; } else { 0; } } } @{$bootloader->{entries}}; $_->{initrd} && unlink $_->{initrd} foreach @$to_remove; @{$bootloader->{entries}} = @$to_keep; foreach (@new_entries) { my ($kernel_str, $v) = @$_; bootloader::add_kernel($bootloader, $kernel_str, $v); } modify_bootloader(); } #-############################################################################### sub add_kernel() { configure_ide_controller(); bootloader::create_link_source(); my $kernel_str = bootloader::vmlinuz2kernel_str($image) or die "bad kernel name $image\n"; if (!$bootloader) { #- building the initrd for weird configs where no mdv bootloader is configured my $fake_bootloader = { vga => undef }; my %opts = (initrd_options => $initrd_options); my $initrd_long = bootloader::kernel_str2initrd_long($kernel_str); bootloader::mkinitrd($kernel_str->{version}, $fake_bootloader, { %opts }, "/boot/$initrd_long"); return; } my $root_part = fs::get::root([ fs::get::fstab($all_hds) ]) or die "can not find root partition\n"; my %opts = ( root => fs::wild_device::from_part('', $root_part), initrd_options => $initrd_options, if_($label, label => $label), (grep_each { member($::a, 'vga', 'lock') } %{$bootloader->{default_options}}), ); #- short name bootloader::add_kernel($bootloader, $kernel_str, { %opts }, 0, $no_initrd) if !$no_short_name; #- long name $kernel_str->{use_long_name} = 1; bootloader::add_kernel($bootloader, $kernel_str, { %opts }, 1, $no_initrd); modify_bootloader(); } sub configure_ide_controller { my $modules_conf = modules::any_conf->read; if ($modules_conf->get_alias('ide-controller') || $modules_conf->get_probeall('ide-controller')) { #- already configured } elsif (my @l = detect_devices::probe_category('disk/ide')) { $modules_conf->add_probeall('ide-controller', $_->{driver}) foreach @l; $modules_conf->write; } } sub modify_bootloader() { !$no_entry or return; bootloader::action($bootloader, 'write', $all_hds); bootloader::action($bootloader, 'when_config_changed') if !$no_launch; } #-############################################################################### sub add_entry() { $label or die "you must give a label\n"; ($image xor $chainload) or die "you must give an image or a chainload\n"; my $entry = { type => $image ? 'image' : 'other', label => $label, kernel_or_dev => $image || $chainload, }; bootloader::add_entry($bootloader, $entry); modify_bootloader(); } sub _get_entry() { listlength(grep { $_ } $label, $image, $chainload) == 1 or die "you must give one of --label, --image and --chainload\n"; $label ? bootloader::get_label($label, $bootloader) : find { $_->{kernel_or_dev} && $_->{kernel_or_dev} eq ($image || $chainload) } @{$bootloader->{entries}}; } sub remove_entry() { my $e = _get_entry() or return; @{$bootloader->{entries}} = grep { $_ != $e } @{$bootloader->{entries}}; modify_bootloader(); } sub add_resume2() { my $e = _get_entry() or return; my ($simple, $dict) = bootloader::unpack_append($e->{append}); if (my $resume = find { $_->[0] eq 'resume' } @$dict) { if (!any { $_->[0] eq 'resume2' } @$dict) { push @$dict, [ resume2 => "swap:$resume->[1]" ]; $e->{append} = bootloader::pack_append($simple, $dict); modify_bootloader(); } } } #-############################################################################### sub rebuild_initrds() { bootloader::rebuild_initrds($bootloader); bootloader::action($bootloader, 'when_config_changed') if !$no_launch; } #-############################################################################### sub update_splash() { bootloader::update_splash($bootloader); bootloader::action($bootloader, 'when_config_changed') if !$no_launch; } sub remove_splash() { foreach (@{$bootloader->{entries}}) { bootloader::remove_boot_splash($_->{initrd}) if $_->{initrd}; } bootloader::action($bootloader, 'when_config_changed') if !$no_launch; } sub detectloader() { print uc(bootloader::main_method($bootloader->{method})), "\n" if $bootloader; }