drakx - Mageia Installer and base platform for many utilities

index : drakx

Mageia Installer and base platform for many utilities

Thierry Vignaud [tv]

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perl-install/share/po/pt_BR.po

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package bootloader; # $Id$

use diagnostics;
use strict;

#-######################################################################################
#- misc imports
#-######################################################################################
use common;
use fs::type;
use fs::get;
use fs::loopback;
use fs::proc_partitions;
use log;
use any;
use devices;
use detect_devices;
use partition_table::raw;
use run_program;
use modules;

#-#####################################################################################
#- Functions
#-#####################################################################################
my $vmlinuz_regexp = 'vmlinuz|win4lin';
my $decompose_vmlinuz_name = qr/((?:$vmlinuz_regexp).*?)-(\d+\.\d+.*)/;

sub expand_vmlinuz_symlink {
    my ($vmlinuz) = @_;
    my $f = $::prefix . ($vmlinuz =~ m!^/! ? $vmlinuz : "/boot/$vmlinuz");
    -l $f ? readlink($f) : $vmlinuz;
}

sub installed_vmlinuz_raw() { grep { /^($vmlinuz_regexp)/ } all("$::prefix/boot") }
sub installed_vmlinuz() { grep { ! -l "$::prefix/boot/$_" } installed_vmlinuz_raw() }
sub vmlinuz2version {
    my ($vmlinuz) = @_;
    expand_vmlinuz_symlink($vmlinuz) =~ /$decompose_vmlinuz_name/ && $2;
}
sub vmlinuz2kernel_str {
    my ($vmlinuz) = @_;
    my ($basename, $version) = expand_vmlinuz_symlink($vmlinuz) =~ /$decompose_vmlinuz_name/ or return;
    { 
	basename => $basename,
	version => $version, 
	$version =~ /(.*)-(\D.*)-(\d+md[kv])$/ ? #- eg: 2.6.22.5-server-1mdv
	  (ext => $2, version_no_ext => "$1-$3") :
	$version =~ /(.*md[kv])-?(.*)/ ? #- (old) eg: 2.6.17-13mdventerprise
	  (ext => $2, version_no_ext => $1) : (version_no_ext => $version),
    };
}

sub basename2initrd_basename {
    my ($basename) = @_;
    $basename =~ s!vmlinuz-?!!; #- here we do not use $vmlinuz_regexp since we explictly want to keep all that is not "vmlinuz"
    'initrd' . ($basename ? "-$basename" : '');    
}
sub kernel_str2vmlinuz_long {
    my ($kernel) = @_;
    $kernel->{basename} . '-' . $kernel->{version};
}
sub kernel_str2initrd_long {
    my ($kernel) = @_;
    basename2initrd_basename($kernel->{basename}) . '-' . $kernel->{version} . '.img';
}
sub kernel_str2vmlinuz_short {
    my ($kernel) = @_;
    if ($kernel->{use_long_name}) {
	kernel_str2vmlinuz_long($kernel);
    } else {
	my $ext = $kernel->{ext} ? "-$kernel->{ext}" : '';
	$kernel->{basename} . $ext;
    }
}
sub kernel_str2initrd_short {
    my ($kernel) = @_;
    if ($kernel->{use_long_name}) {
	kernel_str2initrd_long($kernel);
    } else {
	my $ext = $kernel->{ext} ? "-$kernel->{ext}" : '';
	basename2initrd_basename($kernel->{basename}) . $ext . '.img';
    }
}

sub kernel_str2label {
    my ($kernel, $o_use_long_name) = @_;
    if ($o_use_long_name || $kernel->{use_long_name}) {
	_sanitize_ver($kernel);
    } else {
	$kernel->{basename} eq 'vmlinuz' ? ($kernel->{ext} eq 'xen' ? $kernel->{ext} : 'linux') : 
	  $kernel->{basename};
    }
}

sub get {
    my ($vmlinuz, $bootloader) = @_;
    $_->{kernel_or_dev} && $_->{kernel_or_dev} eq $vmlinuz and return $_ foreach @{$bootloader->{entries}};
    undef;
}
sub get_label {
    my ($label, $bootloader) = @_;
    $_->{label} && lc(make_label_lilo_compatible($_->{label})) eq lc(make_label_lilo_compatible($label)) and return $_ foreach @{$bootloader->{entries}};
    undef;
}

sub mkinitrd {
    my ($kernel_version, $bootloader, $entry, $initrd) = @_;

    $::testing || -e "$::prefix/$initrd" and return $initrd;

    my $loop_boot = fs::loopback::prepare_boot();

    modules::load('loop');
    my @options = (
		   "-v", "-f", $initrd, "--ifneeded", $kernel_version, 
		   if_($entry->{initrd_options}, split(' ', $entry->{initrd_options})),
		  );
    if (!run_program::rooted($::prefix, 'mkinitrd', @options)) {
	unlink("$::prefix/$initrd");
	die "mkinitrd failed:\n(mkinitrd @options))";
    }
    add_boot_splash($initrd, $entry->{vga} || $bootloader->{vga});

    fs::loopback::save_boot($loop_boot);

    -e "$::prefix/$initrd" && $initrd;
}

sub rebuild_initrd {
    my ($kernel_version, $bootloader, $entry, $initrd) = @_;

    my $old = $::prefix . $entry->{initrd} . '.old';
    unlink $old;
    rename "$::prefix$initrd", $old;
    if (!mkinitrd($kernel_version, $bootloader, $entry, $initrd)) {
	log::l("rebuilding initrd failed, putting back the old one");
	rename $old, "$::prefix$initrd";
    }
}

sub remove_boot_splash {
    my ($initrd) = @_;
    run_program::rooted($::prefix, '/usr/share/bootsplash/scripts/remove-boot-splash', $initrd);
}
sub add_boot_splash {
    my ($initrd, $vga) = @_;

    $vga or return;

    eval { require Xconfig::resolution_and_depth } or return;
    if (my $res = Xconfig::resolution_and_depth::from_bios($vga)) {
	run_program::rooted($::prefix, '/usr/share/bootsplash/scripts/make-boot-splash', $initrd, $res->{X});
    } else {
	log::l("unknown vga bios mode $vga");
    }
}
sub update_splash {
    my ($bootloader) = @_;

    foreach (@{$bootloader->{entries}}) {
	bootloader::add_boot_splash($_->{initrd}, $_->{vga} || $bootloader->{vga}) if $_->{initrd};
    }
}

sub read {
    my ($all_hds) = @_;
    my $fstab = [ fs::get::fstab($all_hds) ];
    foreach my $main_method (main_method_choices()) {
	my $f = $bootloader::{"read_$main_method"} or die "unknown bootloader method $main_method (read)";
	my $bootloader = $f->($fstab);

	cleanup_entries($bootloader);

	my @devs = $bootloader->{boot};
	if ($bootloader->{'raid-extra-boot'} =~ /mbr/ && 
	    (my $md = fs::get::device2part($bootloader->{boot}, $all_hds->{raids}))) {
	    @devs = map { $_->{rootDevice} } @{$md->{disks}};
	} elsif ($bootloader->{'raid-extra-boot'} =~ m!/dev/!) {
	    @devs = split(',', $bootloader->{'raid-extra-boot'});
	}

	my ($type) = map {
	    if (m!/fd\d+$!) {
		warn "not checking the method on floppy, assuming $main_method is right\n";
		$main_method;
	    } elsif (member($main_method, qw(yaboot cromwell silo))) {
		#- not checking, there's only one bootloader anyway :)
		$main_method;
	    } elsif (my $type = partition_table::raw::typeOfMBR($_)) {
		warn "typeOfMBR $type on $_ for method $main_method\n" if $ENV{DEBUG};
		$type;
	    } else { () }
	} @devs;

	if ($type eq $main_method) {
	    my @prefered_entries = map { get_label($_, $bootloader) } $bootloader->{default}, 'linux';

	    if (my $default = find { $_ && $_->{type} eq 'image' } (@prefered_entries, @{$bootloader->{entries}})) {
		$bootloader->{default_options} = $default;
		$bootloader->{perImageAppend} ||= $default->{append};
		log::l("perImageAppend is now $bootloader->{perImageAppend}");
	    } else {
		$bootloader->{default_options} = {};
	    }
	    return $bootloader;
	}
    }
}

sub read_grub {
    my ($fstab) = @_;

    my $grub2dev = read_grub_device_map();

    my $bootloader = read_grub_menu_lst($fstab, $grub2dev) or return;

    read_grub_install_sh($bootloader, $grub2dev);

    $bootloader;
}

sub read_grub_install_sh {
    my ($bootloader, $grub2dev) = @_;

    #- matches either:
    #-   setup (hd0)
    #-   install (hd0,0)/boot/grub/stage1 d (hd0) (hd0,0)/boot/grub/stage2 p (hd0,0)/boot/grub/menu.lst
    if (cat_("$::prefix/boot/grub/install.sh") =~ /^(?:setup.*|install\s.*\sd)\s+(\(.*?\))/m) {
	$bootloader->{boot} = grub2dev($1, $grub2dev);
    }    
}

sub read_grub_menu_lst {
    my ($fstab, $grub2dev) = @_;
    my $global = 1;
    my ($e, %b);

    my $menu_lst_file = "$::prefix/boot/grub/menu.lst";
    -e $menu_lst_file or return;

    foreach (cat_($menu_lst_file)) {
	my $verbatim = $_;
        chomp;
	s/^\s*//; s/\s*$//;
        next if /^#/ || /^$/;
	my ($keyword, $v) = split('[ \t=]+', $_, 2) or
	  warn qq(unknown line in /boot/grub/menu.lst: "$_"\n), next;

	if ($keyword eq 'root') {
	    #- rename to avoid name conflict
	    $keyword = 'grub_root';
	}

        if ($keyword eq 'title') {
            push @{$b{entries}}, $e = { label => $v };
            $global = 0;
        } elsif ($global) {
            $b{$keyword} = $v eq '' ? 1 : grub2file($v, $grub2dev, $fstab, \%b);
        } else {
            if ($keyword eq 'kernel') {
                $e->{type} = 'image';
		$e->{kernel} = $v;
            } elsif ($keyword eq 'chainloader') {
                $e->{type} = 'other';
                $e->{kernel_or_dev} = grub2dev($e->{rootnoverify} || $e->{grub_root}, $grub2dev);
                $e->{append} = "";
            } elsif ($keyword eq 'initrd') {
                $e->{initrd} = grub2file($v, $grub2dev, $fstab, $e);
            } elsif ($keyword eq 'map') {
		$e->{mapdrive}{$2} = $1 if $v =~ m/\((.*)\) \((.*)\)/;
            } elsif ($keyword eq 'module') {
		push @{$e->{modules}}, $v;
	    } else {
		$e->{$keyword} = $v eq '' ? 1 : $v;
	    }
        }
	$e and $e->{verbatim} .= $verbatim;
    }

    #- sanitize
    foreach my $e (@{$b{entries}}) {
	if ($e->{kernel} =~ /xen/ && @{$e->{modules} || []} == 2 && $e->{modules}[1] =~ /initrd/) {
	    (my $xen, $e->{xen_append}) = split(' ', $e->{kernel}, 2);
	    ($e->{kernel}, my $initrd) = @{delete $e->{modules}};
	    $e->{xen} = grub2file($xen, $grub2dev, $fstab, $e);
	    $e->{initrd} = grub2file($initrd, $grub2dev, $fstab, $e);
	}
	if (my $v = delete $e->{kernel}) {
	    (my $kernel, $e->{append}) = split(' ', $v, 2);
	    $e->{append} = join(' ', grep { !/^BOOT_IMAGE=/ } split(' ', $e->{append}));
	    $e->{root} = $1 if $e->{append} =~ s/root=(\S*)\s*//;
	    $e->{kernel_or_dev} = grub2file($kernel, $grub2dev, $fstab, $e);
	    $e->{keep_verbatim} = 1 if dirname($e->{kernel_or_dev}) ne '/boot';
	}
	my ($vga, $other) = partition { /^vga=/ } split(' ', $e->{append});
	if (@$vga) {
	    $e->{vga} = $vga->[0] =~ /vga=(.*)/ && $1;
	    $e->{append} = join(' ', @$other);
	}
    }

    $b{nowarn} = 1;
    # handle broken installkernel -r:
    if (@{$b{entries}}) {
	$b{default} = min($b{default}, scalar(@{$b{entries}}) - 1);
	$b{default} = $b{entries}[$b{default}]{label};
    }
    $b{method} = $b{gfxmenu} ? 'grub-graphic' :  'grub-menu';

    \%b;
}

sub yaboot2dev {
    my ($of_path) = @_;
    find { dev2yaboot($_) eq $of_path } map { "/dev/$_->{dev}" } fs::proc_partitions::read_raw();
}

# assumes file is in /boot
# to do: use yaboot2dev for files as well
#- example of of_path: /pci@f4000000/ata-6@d/disk@0:3,/initrd-2.6.8.1-8mdk.img
sub yaboot2file {
    my ($of_path) = @_;
    
    if ($of_path =~ /,/) {
	"$::prefix/boot/" . basename($of_path);
    } else {
	yaboot2dev($of_path);
    }
}

sub read_silo() {
    my $bootloader = read_lilo_like("/boot/silo.conf", sub {
					my ($f) = @_;
					"/boot$f";
				    });
    $bootloader->{method} = 'silo';
    $bootloader;
}
sub read_cromwell() {
    my %b;
    $b{method} = 'cromwell';
    \%b;
}
sub read_yaboot() { 
    my $bootloader = read_lilo_like("/etc/yaboot.conf", \&yaboot2file);
    $bootloader->{method} = 'yaboot';
    $bootloader;
}
sub read_lilo() {
    my $bootloader = read_lilo_like("/etc/lilo.conf", sub { $_[0] });

    delete $bootloader->{timeout} unless $bootloader->{prompt};
    $bootloader->{timeout} = $bootloader->{timeout} / 10 if $bootloader->{timeout};

    my $submethod = member($bootloader->{install}, 'text', 'menu') ? $bootloader->{install} : 'menu';
    $bootloader->{method} = "lilo-$submethod";
    
    $bootloader;
}
sub read_lilo_like {
    my ($file, $filter_file) = @_;

    my $global = 1;
    my ($e);
    my %b;
    -e "$::prefix$file" or return;
    foreach my $line (cat_("$::prefix$file")) {
	next if $line =~ /^\s*#/ || $line =~ /^\s*$/;
	my ($cmd, $v) = $line =~ /^\s*([^=\s]+)\s*(?:=\s*(.*?))?\s*$/ or log::l("unknown line in $file: $line"), next;

	if ($cmd =~ /^(?:image|other|macos|macosx|bsd|darwin)$/) {
	    $v = $filter_file->($v);
	    push @{$b{entries}}, $e = { type => $cmd, kernel_or_dev => $v };
	    $global = 0;
	} elsif ($global) {
	    if ($cmd eq 'disk' && $v =~ /(\S+)\s+bios\s*=\s*(\S+)/) {
		$b{bios}{$1} = $2;
	    } elsif ($cmd eq 'bios') {
		$b{bios}{$b{disk}} = $v;
	    } elsif ($cmd eq 'init-message') {
		$v =~ s/\\n//g; 
		$v =~ s/"//g;
		$b{'init-message'} = $v;
	    } else {
		$b{$cmd} = $v eq '' ? 1 : $v;
	    }
	} else {
	    if (($cmd eq 'map-drive' .. $cmd eq 'to') && $cmd eq 'to') {
		$e->{mapdrive}{$e->{'map-drive'}} = $v;
	    } else {
		if ($cmd eq 'initrd') {
		    $v = $filter_file->($v);
		}
		$e->{$cmd} = $v || 1;
	    }
	}
    }

    sub remove_quotes_and_spaces {
	local ($_) = @_;
	s/^\s*//; s/\s*$//;
	s/^"(.*?)"$/$1/;
	s/\\"/"/g;
	s/^\s*//; s/\s*$//; #- do it again for append=" foo"
	$_;
    }

    foreach ('append', 'root', 'default', 'raid-extra-boot') {
	$b{$_} = remove_quotes_and_spaces($b{$_}) if $b{$_};
    }
    foreach my $entry (@{$b{entries}}) {
	foreach ('append', 'root', 'label') {
	    $entry->{$_} = remove_quotes_and_spaces($entry->{$_}) if $entry->{$_};
	}
	if ($entry->{kernel_or_dev} =~ /\bmbootpack\b/) {
	    $entry->{initrd} = $entry->{kernel_or_dev};
	    $entry->{initrd} =~ s/\bmbootpack/initrd/;
	    $entry->{kernel_or_dev} =~ s/\bmbootpack/vmlinuz/;
	    $entry->{kernel_or_dev} =~ s/.img$//;
	    #- assume only xen is configured with mbootpack
	    $entry->{xen} = '/boot/xen.gz';
	    $entry->{root} = $1 if $entry->{append} =~ s/root=(\S*)\s*//;
	    ($entry->{xen_append}, $entry->{append}) = split '\s*--\s*', $entry->{append}, 2;
	}
    }

    # cleanup duplicate labels (in case file is corrupted)
    @{$b{entries}} = uniq_ { $_->{label} } @{$b{entries}};

    \%b;
}

sub cleanup_entries {
    my ($bootloader) = @_;

    #- cleanup bad entries (in case file is corrupted)
    @{$bootloader->{entries}} = 
	grep { 
	    my $pb = $_->{type} eq 'image' && !$_->{keep_verbatim} && ! -e "$::prefix$_->{kernel_or_dev}";
	    log::l("dropping bootloader entry $_->{label} since $_->{kernel_or_dev} doesn't exist") if $pb;
	    !$pb;
	} @{$bootloader->{entries}};
}

sub suggest_onmbr {
    my ($hd) = @_;
    
    my ($onmbr, $unsafe) = (1, 1);

    if (my $type = partition_table::raw::typeOfMBR($hd->{device})) {
	if (member($type, qw(dos dummy empty))) {
	    $unsafe = 0;
	} elsif (!member($type, qw(lilo grub))) {
	    $onmbr = 0;
	}
	log::l("bootloader::suggest_onmbr: type $type, onmbr $onmbr, unsafe $unsafe");
    }
    ($onmbr, $unsafe);
}

sub allowed_boot_parts {
    my ($bootloader, $all_hds) = @_;
    (
     @{$all_hds->{hds}},
     if_($bootloader->{method} =~ /lilo/,
	 grep { $_->{level} eq '1' } @{$all_hds->{raids}}
	),
     (grep { !isFat_or_NTFS($_) } fs::get::hds_fstab(@{$all_hds->{hds}})),
     detect_devices::floppies(),
    );
}

sub same_entries {
    my ($a, $b) = @_;

    foreach (uniq(keys %$a, keys %$b)) {
	if (member($_, 'label', 'append', 'mapdrive', 'readonly', 'makeactive', 'verbatim')) {
	    next;
	} else {
	    next if $a->{$_} eq $b->{$_};

	    my ($inode_a, $inode_b) = map { (stat "$::prefix$_")[1] } ($a->{$_}, $b->{$_});
	    next if $inode_a && $inode_b && $inode_a == $inode_b;
	}

	log::l("entries $a->{label} do not have same $_: $a->{$_} ne $b->{$_}");
	return;
    }
    1;
}

sub add_entry {
    my ($bootloader, $v) = @_;

    my $to_add = $v;
    my $label = $v->{label};
    for (my $i = 0; $i < 10;) {
	my $conflicting = get_label($label, $bootloader);

	$to_add->{label} = $label;

	if ($conflicting) {
	    #- replacing $conflicting with $to_add
	    @{$bootloader->{entries}} = map { $_ == $conflicting ? $to_add : $_ } @{$bootloader->{entries}};

	    #- we will keep $conflicting, but not with same symlinks if used by the entry to add
	    expand_entry_symlinks($bootloader, $conflicting);
	} else {
	    #- we have found an unused label
	    push @{$bootloader->{entries}}, $to_add;
	}

	if (!$conflicting || same_entries($conflicting, $to_add)) {
	    log::l("current labels: " . join(" ", map { $_->{label} } @{$bootloader->{entries}}));
	    return $v;
	}
	$to_add = $conflicting;

	if ($to_add->{label} eq 'linux') {
	    $label = kernel_str2label(vmlinuz2kernel_str($to_add->{kernel_or_dev}), 'use_long_name');
	} else {
	    $label =~ s/^alt\d*_//;
	    $label = 'alt' . ($i++ ? $i : '') . "_$label";
	}
    }
    die 'add_entry';
}

sub expand_entry_symlinks {
    my ($bootloader, $entry) = @_;

    foreach my $kind ('kernel_or_dev', 'initrd') {
	my $old_long_name = $bootloader->{old_long_names} && $bootloader->{old_long_names}{$entry->{$kind}} or next;

	#- replace all the {$kind} using this symlink to the real file
	log::l("replacing $entry->{$kind} with $old_long_name for bootloader label $entry->{label}");
	$entry->{$kind} = $old_long_name;
    }
}

sub _do_the_symlink {
    my ($bootloader, $link, $long_name) = @_;

    my $existing_link = readlink("$::prefix$link");
    if ($existing_link && $existing_link eq $long_name) {
	#- nothing to do :)
	return;
    }

    if ($existing_link) {
	#- the symlink is going to change! 
	#- replace all the {$kind} using this symlink to the real file
	my $old_long_name = $existing_link =~ m!^/! ? $existing_link : "/boot/$existing_link";
	if (-e "$::prefix$old_long_name") {
	    $bootloader->{old_long_names}{$link} = $old_long_name;
	} else {
	    log::l("ERROR: $link points to $old_long_name which does not exist");
	}
    } elsif (-e "$::prefix$link") {
	log::l("ERROR: $link is not a symbolic link");
    }

    #- changing the symlink
    symlinkf($long_name, "$::prefix$link")
      or cp_af("$::prefix/boot/$long_name", "$::prefix$link");
}

sub cmp_kernel_versions {
    my ($va, $vb) = @_;
    my $rel_a = $va =~ s/-(.*)$// && $1;
    my $rel_b = $vb =~ s/-(.*)$// && $1;
    ($va, $vb) = map { [ split /[.-]/ ] } $va, $vb;
    my $r = 0;
    mapn_ {
	$r ||= $_[0] <=> $_[1];
    } $va, $vb;
    $r || $rel_a <=> $rel_b || $rel_a cmp $rel_b;
}

sub get_mbootpack_filename {
    my ($entry) = @_;
    my $mbootpack_file = $entry->{initrd};
    $mbootpack_file =~ s/\binitrd/mbootpack/;
    $entry->{xen} && $mbootpack_file;
}

sub build_mbootpack {
    my ($entry) = @_;

    my $mbootpack = '/usr/bin/mbootpack';
    -f $::prefix . $entry->{kernel_or_dev} && -f $::prefix . $entry->{initrd} or return;

    my $mbootpack_file = get_mbootpack_filename($entry);
    -f ($::prefix . $mbootpack_file) and return 1;

    my $error;
    my $xen_kernel = '/tmp/xen_kernel';
    my $xen_vmlinux = '/tmp/xen_vmlinux';
    my $_b = before_leaving { unlink $::prefix . $_ foreach $xen_kernel, $xen_vmlinux };
    run_program::rooted($::prefix, '/bin/gzip', '>', $xen_kernel, '2>', \$error, '-dc', $entry->{xen})
      or die "unable to uncompress xen kernel";
    run_program::rooted($::prefix, '/bin/gzip', '>', $xen_vmlinux, '2>', \$error, '-dc', $entry->{kernel_or_dev})
      or die "unable to uncompress xen vmlinuz";

    run_program::rooted($::prefix, $mbootpack,
                        "2>", \$error,
                        '-o', $mbootpack_file,
                        '-m', $xen_vmlinux,
                        '-m', $entry->{initrd},
                        $xen_kernel)
      or die "mbootpack failed: $error";

    1;
}

sub add_kernel {
    my ($bootloader, $kernel_str, $v, $b_nolink, $b_no_initrd) = @_;

    #- eg: for /boot/vmlinuz-2.6.17-13mdvxen0 (pkg kernel-xen0-xxx) 
    #-      or /boot/vmlinuz-2.6.18-xen (pkg kernel-xen-uptodate)
    if ($kernel_str->{version} =~ /xen/ && -f '/boot/xen.gz') {
	$v->{xen} = '/boot/xen.gz';
    }

    add2hash($v,
	     {
	      type => 'image',
	      label => kernel_str2label($kernel_str),
	     });

    #- normalize append and handle special options
    {
	my ($simple, $dict) = unpack_append("$bootloader->{perImageAppend} $v->{append}");
	if ($v->{label} eq 'failsafe') {
	    #- perImageAppend contains resume=/dev/xxx which we don't want
	    @$dict = grep { $_->[0] ne 'resume' } @$dict;
	}
	if (-e "$::prefix/sbin/udev" && cmp_kernel_versions($kernel_str->{version_no_ext}, '2.6.8') >= 0) {
	    log::l("it is a recent kernel, so we remove any existing devfs= kernel option to enable udev");
	    @$dict = grep { $_->[0] ne 'devfs' } @$dict;
	}
	$v->{append} = pack_append($simple, $dict);
    }

    #- new versions of yaboot do not handle symlinks
    $b_nolink ||= arch() =~ /ppc/;

    $b_nolink ||= $kernel_str->{use_long_name};

    my $vmlinuz_long = kernel_str2vmlinuz_long($kernel_str);
    $v->{kernel_or_dev} = "/boot/$vmlinuz_long";
    -e "$::prefix$v->{kernel_or_dev}" or log::l("unable to find kernel image $::prefix$v->{kernel_or_dev}"), return;
    if (!$b_nolink) {
	$v->{kernel_or_dev} = '/boot/' . kernel_str2vmlinuz_short($kernel_str);
	_do_the_symlink($bootloader, $v->{kernel_or_dev}, $vmlinuz_long);
    }
    log::l("adding $v->{kernel_or_dev}");

    if (!$b_no_initrd) {
	my $initrd_long = kernel_str2initrd_long($kernel_str);
	$v->{initrd} = mkinitrd($kernel_str->{version}, $bootloader, $v, "/boot/$initrd_long");
	if ($v->{initrd} && !$b_nolink) {
	    $v->{initrd} = '/boot/' . kernel_str2initrd_short($kernel_str);
	    _do_the_symlink($bootloader, $v->{initrd}, $initrd_long);
	}
    }

    add_entry($bootloader, $v);
}

sub rebuild_initrds {
    my ($bootloader) = @_;

    my %done;
    foreach my $v (grep { $_->{initrd} } @{$bootloader->{entries}}) {
	my $kernel_str = vmlinuz2kernel_str($v->{kernel_or_dev}) or next;
	my $initrd_long = '/boot/' . kernel_str2initrd_long($kernel_str);
	next if $done{$initrd_long}++;

	rebuild_initrd($kernel_str->{version}, $bootloader, $v, $initrd_long);
    }
}

sub duplicate_kernel_entry {
    my ($bootloader, $new_label) = @_;

    get_label($new_label, $bootloader) and return;

    my $entry = { %{ get_label('linux', $bootloader) }, label => $new_label };
    add_entry($bootloader, $entry);
}

my $uniq_dict_appends = join('|', qw(acpi pci resume PROFILE XFree));

sub unpack_append {
    my ($s) = @_;
    my @l = "$s " =~ /((?:[^"\s]+|".*?")*)\s+/g;
    [ grep { !/=/ } @l ], [ map { if_(/(.*?)=(.*)/, [$1, $2]) } @l ];
}
sub pack_append {
    my ($simple, $dict) = @_;

    #- normalize
    $simple = [ reverse(uniq(reverse @$simple)) ];
    $dict = [ reverse(uniq_ { 
	my ($k, $v) = @$_; 
	$k =~ /^($uniq_dict_appends)$/ ? $k : "$k=$v";
    } reverse @$dict) ];

    join(' ', @$simple, map { "$_->[0]=$_->[1]" } @$dict);
}

sub modify_append {
    my ($b, $f) = @_;

    my @l = grep { $_->{type} eq 'image' && !($::isStandalone && $_->{label} eq 'failsafe') } @{$b->{entries}};

    foreach (\$b->{perImageAppend}, map { \$_->{append} } @l) {
	my ($simple, $dict) = unpack_append($$_);
	$f->($simple, $dict);
	$$_ = pack_append($simple, $dict);
	log::l("modify_append: $$_");
    }
}

sub append__mem_is_memsize { $_[0] =~ /^\d+[kM]?$/i }

sub get_append_simple {
    my ($b, $key) = @_;
    my ($simple, $_dict) = unpack_append($b->{perImageAppend});
    member($key, @$simple);
}
sub get_append_with_key {
    my ($b, $key) = @_;
    my ($_simple, $dict) = unpack_append($b->{perImageAppend});
    my @l = map { $_->[1] } grep { $_->[0] eq $key } @$dict;

    log::l("more than one $key in $b->{perImageAppend}") if @l > 1;
    $l[0];
}
sub remove_append_simple {
    my ($b, $key) = @_;
    modify_append($b, sub {
	my ($simple, $_dict) = @_;
	@$simple = grep { $_ ne $key } @$simple;
    });
}
sub set_append_with_key {
    my ($b, $key, $val) = @_;

    modify_append($b, sub {
	my ($_simple, $dict) = @_;

	if ($val eq '') {
	    @$dict = grep { $_->[0] ne $key } @$dict;
	} else {
	    push @$dict, [ $key, $val ];
	}
    });
}
sub set_append_simple {
    my ($b, $key) = @_;

    modify_append($b, sub {
	my ($simple, $_dict) = @_;
	@$simple = uniq(@$simple, $key);
    });
}
sub may_append_with_key {
    my ($b, $key, $val) = @_;
    set_append_with_key($b, $key, $val) if !get_append_with_key($b, $key);
}

sub get_append_memsize {
    my ($b) = @_;
    my ($_simple, $dict) = unpack_append($b->{perImageAppend});
    my $e = find { $_->[0] eq 'mem' && append__mem_is_memsize($_->[1]) } @$dict;
    $e && $e->[1];
}

sub set_append_memsize {
    my ($b, $memsize) = @_;

    modify_append($b, sub {
	my ($_simple, $dict) = @_;

	@$dict = grep { $_->[0] ne 'mem' || !append__mem_is_memsize($_->[1]) } @$dict;
	push @$dict, [ mem => $memsize ] if $memsize;
    });
}

sub get_append_netprofile {
    my ($e) = @_;
    my ($simple, $dict) = unpack_append($e->{append});
    my ($p, $dict_) = partition { $_->[0] eq 'PROFILE' } @$dict;
    pack_append($simple, $dict_), $p->[0][1];
}
sub set_append_netprofile {
    my ($e, $append, $profile) = @_;
    my ($simple, $dict) = unpack_append($append);
    push @$dict, [ 'PROFILE', $profile ] if $profile;
    $e->{append} = pack_append($simple, $dict);
}

sub configure_entry {
    my ($bootloader, $entry) = @_;
    $entry->{type} eq 'image' or return;

    if (my $kernel_str = vmlinuz2kernel_str($entry->{kernel_or_dev})) {
	$entry->{initrd} = 
	  mkinitrd($kernel_str->{version}, $bootloader, $entry,
		   $entry->{initrd} || '/boot/' . kernel_str2initrd_short($kernel_str));
    }
}

sub get_kernels_and_labels_before_kernel_remove {
    my ($to_remove_kernel) = @_;
    my @kernels = grep { $_ ne $to_remove_kernel } installed_vmlinuz();
    map { kernel_str2label($_) => $_ } get_kernel_labels(\@kernels);
}

sub get_kernels_and_labels {
    my ($b_prefer_24) = @_;
    get_kernel_labels([ installed_vmlinuz() ], $b_prefer_24);
}

sub get_kernel_labels {
    my ($kernels, $b_prefer_24) = @_;
    
    my @kernels_str = 
      sort { cmp_kernel_versions($b->{version_no_ext}, $a->{version_no_ext}) } 
      grep { -d "$::prefix/lib/modules/$_->{version}" }
      map { vmlinuz2kernel_str($_) } @$kernels;

    if ($b_prefer_24) {
	my ($kernel_24, $other) = partition { $_->{ext} eq '' && $_->{version} =~ /^\Q2.4/ } @kernels_str;
	@kernels_str = (@$kernel_24, @$other);
    }

    $kernels_str[0]{ext} = '';

    my %labels;
    foreach (@kernels_str) {
	if ($labels{$_->{ext}}) {
	    $_->{use_long_name} = 1;
	} else {
	    $labels{$_->{ext}} = 1;
	}
    }
    @kernels_str;
}

sub short_ext {
    my ($kernel_str) = @_;

    my $short_ext = {
	'i586-up-1GB' => 'i586',
	'i686-up-4GB' => '4GB',
	'xen0' => 'xen',
    }->{$kernel_str->{ext}};

    $short_ext || $kernel_str->{ext};
}

# deprecated, only for compatibility (nov 2007)
sub sanitize_ver {    
    my ($_name, $kernel_str) = @_;
    _sanitize_ver($kernel_str);
}

sub _sanitize_ver {
    my ($kernel_str) = @_;

    my $name = $kernel_str->{basename};
    $name = '' if $name eq 'vmlinuz';

    my $v = $kernel_str->{version_no_ext};
    if ($v =~ s/-\d+\.mm\././) {
	$name = join(' ', grep { $_ } $name, 'multimedia');
    }

    $v =~ s!md[kv]$!!;
    $v =~ s!-0\.(pre|rc)(\d+)\.!$1$2-!;

    my $return = join(' ', grep { $_ } $name, short_ext($kernel_str), $v);

    length($return) < 30 or $return =~ s!secure!sec!;
    length($return) < 30 or $return =~ s!enterprise!ent!;
    length($return) < 30 or $return =~ s!multimedia!mm!;

    $return;
}

sub suggest_message_text {
    my ($bootloader) = @_;

    if (!$bootloader->{message} && !$bootloader->{message_text} && arch() !~ /ia64/) {
	my $msg_en =
#-PO: these messages will be displayed at boot time in the BIOS, use only ASCII (7bit)
N_("Welcome to the operating system chooser!

Choose an operating system from the list above or
wait for default boot.

");
	my $msg = translate($msg_en);
	#- use the english version if more than 40% of 8bits chars
	#- else, use the translation but force a conversion to ascii
	#- to be sure there won't be undisplayable characters
	if (int(grep { $_ & 0x80 } unpack "c*", $msg) / length($msg) > 0.4) {
	    $msg = $msg_en;
	} else {
	    $msg = Locale::gettext::iconv($msg, "utf-8", "ascii//TRANSLIT");
	}
	$bootloader->{message_text} = $msg;
    }
}

sub suggest {
    my ($bootloader, $all_hds, %options) = @_;
    my $fstab = [ fs::get::fstab($all_hds) ];
    my $root_part = fs::get::root($fstab);
    my $root = isLoopback($root_part) ? '/dev/loop7' : fs::wild_device::from_part('', $root_part);
    my $boot = fs::get::root($fstab, 'boot')->{device};
    #- PPC xfs module requires enlarged initrd
    my $xfsroot = $root_part->{fs_type} eq 'xfs';

    my ($onmbr, $unsafe) = $bootloader->{crushMbr} ? (1, 0) : suggest_onmbr($all_hds->{hds}[0]);
    add2hash_($bootloader, arch() =~ /ppc/ ?
	{
	 defaultos => "linux",
	 entries => [],
	 'init-message' => "Welcome to Mandriva Linux!",
	 delay => 30,	#- OpenFirmware delay
	 timeout => 50,
	 enableofboot => 1,
	 enablecdboot => 1,
	   if_(detect_devices::get_mac_model() =~ /IBM/,
	 boot => "/dev/sda1",
           ),
	 xfsroot => $xfsroot,
	} :
	{
	 bootUnsafe => $unsafe,
	 entries => [],
	 timeout => $onmbr && 10,
	 nowarn => 1,
	   if_(arch() !~ /ia64/,
	 boot => "/dev/" . ($onmbr ? $all_hds->{hds}[0]{device} : $boot),
	 map => "/boot/map",
	 compact => 1,
	 color => 'black/cyan yellow/cyan',
	 'menu-scheme' => 'wb:bw:wb:bw'
         ),
	});

    suggest_message_text($bootloader);

    add2hash_($bootloader, { memsize => $1 }) if cat_("/proc/cmdline") =~ /\bmem=(\d+[KkMm]?)(?:\s.*)?$/;
    if (my ($s, $port, $speed) = cat_("/proc/cmdline") =~ /console=(ttyS(\d),(\d+)\S*)/) {
	log::l("serial console $s $port $speed");
	set_append_with_key($bootloader, console => $s);
	any::set_login_serial_console($port, $speed);
    }

    my @kernels = get_kernels_and_labels() or die "no kernel installed";

    foreach my $kernel (@kernels) {
	my $e = add_kernel($bootloader, $kernel,
	       {
		root => $root,
		if_($options{vga_fb} && $kernel->{ext} eq '', vga => $options{vga_fb}), #- using framebuffer
		if_($options{vga_fb} && $options{quiet}, append => "splash=silent"),
	       });

	if ($options{vga_fb} && $e->{label} eq 'linux') {
	    add_kernel($bootloader, $kernel, { root => $root, label => 'linux-nonfb' });
	}
    }

    #- remove existing failsafe, do not care if the previous one was modified by the user?
    @{$bootloader->{entries}} = grep { $_->{label} ne 'failsafe' } @{$bootloader->{entries}};

    add_kernel($bootloader, $kernels[0],
	       { root => $root, label => 'failsafe', append => 'failsafe' });

    if (arch() =~ /ppc/) {
	#- if we identified a MacOS partition earlier - add it
	if (defined $partition_table::mac::macos_part) {
	    add_entry($bootloader,
		      {
		       type => "macos",
		       kernel_or_dev => $partition_table::mac::macos_part
		      });
	}
    } elsif (arch() !~ /ia64/) {
	#- search for dos (or windows) boot partition. Do not look in extended partitions!
	my @windows_boot_parts =
	  grep { isFat_or_NTFS($_) && member(fs::type::fs_type_from_magic($_), 'vfat', 'ntfs')
		   && fs::type::part2type_name($_) !~ /^Hidden/;
	     }
	    map { @{$_->{primary}{normal}} } @{$all_hds->{hds}};
	each_index {
	    add_entry($bootloader,
		      {
		       type => 'other',
		       kernel_or_dev => "/dev/$_->{device}",
		       label => 'windows' . ($::i || ''),
		       table => "/dev/$_->{rootDevice}",
		       makeactive => 1,
		      });
	} @windows_boot_parts;
    }

    my @preferred = map { "linux-$_" } 'p3-smp-64GB', 'secure', 'enterprise', 'smp', 'i686-up-4GB';
    if (my $preferred = find { get_label($_, $bootloader) } @preferred) {
	$bootloader->{default} ||= $preferred;
    }
    $bootloader->{default} ||= "linux";
    $bootloader->{method} ||= first(method_choices($all_hds, 1));
}

sub detect_main_method {
    my ($all_hds) = @_;
    my $bootloader = &read($all_hds);
    $bootloader && main_method($bootloader->{method});
}

sub main_method {
    my ($method) = @_;
    $method =~ /(\w+)/ && $1;
}

sub config_files() {
    my %files = (
	lilo => '/etc/lilo.conf',
	grub => '/boot/grub/menu.lst',
	grub_install => '/boot/grub/install.sh',
    );
    
    map_each { 
	my $content = cat_("$::prefix/$::b");
	{ main_method => main_method($::a), name => $::a, file => $::b, content => $content };
    } %files;
}

sub method2text {
    my ($method) = @_;
    +{
	'lilo-menu'    => N("LILO with text menu"),
	'grub-graphic' => N("GRUB with graphical menu"),
	'grub-menu'    => N("GRUB with text menu"),
	'yaboot'       => N("Yaboot"),
	'silo'         => N("SILO"),
    }->{$method};
}

sub method_choices_raw {
    my ($b_prefix_mounted) = @_;
    detect_devices::is_xbox() ? 'cromwell' :
    arch() =~ /ppc/ ? 'yaboot' : 
    arch() =~ /ia64/ ? 'lilo' : 
    arch() =~ /sparc/ ? 'silo' : 
      (
       if_(!$b_prefix_mounted || whereis_binary('grub', $::prefix), 
	   'grub-graphic', 'grub-menu'),
       if_(!$b_prefix_mounted || whereis_binary('lilo', $::prefix), 
	   'lilo-menu'),
      );
}
sub method_choices {
    my ($all_hds, $b_prefix_mounted) = @_;
    my $fstab = [ fs::get::fstab($all_hds) ];
    my $root_part = fs::get::root($fstab);
    my $boot_part = fs::get::root($fstab, 'boot');
    my $have_dmraid = find { fs::type::is_dmraid($_) } @{$all_hds->{hds}};

    grep {
	!(/lilo/ && (isLoopback($root_part) || $have_dmraid))
	  && !(/grub/ && isRAID($boot_part))
	  && !(/grub-graphic/ && cat_("/proc/cmdline") =~ /console=ttyS/);
    } method_choices_raw($b_prefix_mounted);
}
sub main_method_choices {
    my ($b_prefix_mounted) = @_;
    uniq(map { main_method($_) } method_choices_raw($b_prefix_mounted));
}
sub configured_main_methods() {
    my @bad_main_methods = map { if_(!$_->{content}, $_->{main_method}) } config_files();
    difference2([ main_method_choices(1) ], \@bad_main_methods);
}

sub keytable {
    my ($f) = @_;
    $f or return;

    if ($f !~ /\.klt$/) {
	my $file = "/boot/$f.klt";
	run_program::rooted($::prefix, "keytab-lilo.pl", ">", $file, $f) or return;
	$f = $file;
    }
    -r "$::prefix/$f" && $f;
}


sub create_link_source() {
    #- we simply do it for all kernels :)
    #- so this can be used in %post of kernel and also of kernel-source
    foreach (all("$::prefix/usr/src")) {
	my ($version) = /^linux-(\d+\.\d+.*)/ or next;
	foreach (glob("$::prefix/lib/modules/$version*")) {
	    -d $_ or next;
	    log::l("creating symlink $_/build");
	    symlink "/usr/src/linux-$version", "$_/build";
	    log::l("creating symlink $_/source");
	    symlink "/usr/src/linux-$version", "$_/source";
	}
    }
}

sub dev2yaboot {
    my ($dev) = @_;

    devices::make("$::prefix$dev"); #- create it in the chroot

    my $of_dev;
    run_program::rooted_or_die($::prefix, "/usr/sbin/ofpath", ">", \$of_dev, $dev);


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