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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,
$version =~ /(.*)-(\D.*)-(\d+(mdk|mdv|mnb))$/ ? #- 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 => $version),
};
}
sub kernel_str2short_name {
my ($kernel) = @_;
$kernel->{ext} =~ /^xen/ ? 'xen' : $kernel->{basename};
}
sub basename2initrd_basename {
my ($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_str2short_name($kernel)) . '-' . $kernel->{version} . '.img';
}
sub kernel_str2vmlinuz_short {
my ($kernel) = @_;
if ($kernel->{use_long_name}) {
kernel_str2vmlinuz_long($kernel);
} else {
kernel_str2short_name($kernel);
}
}
sub kernel_str2initrd_short {
my ($kernel) = @_;
if ($kernel->{use_long_name}) {
kernel_str2initrd_long($kernel);
} else {
basename2initrd_basename(kernel_str2short_name($kernel)) . '.img';
}
}
sub kernel_str2label {
my ($kernel, $o_use_long_name) = @_;
if ($o_use_long_name || $kernel->{use_long_name}) {
_sanitize_ver($kernel);
} else {
my $short_name = kernel_str2short_name($kernel);
$short_name eq 'vmlinuz' ? 'linux' : $short_name;
}
}
sub get {
my ($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;
# for /boot on dos partitions when installing on loopback file on dos partition
my $loop_boot = fs::loopback::prepare_boot();
modules::load('loop');
my @options = (
if_($::isInstall, "-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 (@{$bootloader->{entries}}) {
add_boot_splash($_->{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);
# handle raid-extra-boot (lilo)
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 $boot_root = read_grub_install_sh();
_may_fix_grub2dev($fstab, $grub2dev, $boot_root->{boot_part});
my $bootloader = read_grub_menu_lst($fstab, $grub2dev) or return;
if ($boot_root->{boot}) {
$bootloader->{boot} = grub2dev($boot_root->{boot}, $grub2dev);
}
$bootloader;
}
# adapts device.map (aka $grub2dev) when for example hda is now sda
# nb:
# - $boot_part comes from /boot/grub/install.sh "root (hd...)" line
# - $grub2dev is /boot/grub/device.map
sub _may_fix_grub2dev {
my ($fstab, $grub2dev, $boot_part) = @_;
$boot_part or log::l("install.sh does not contain 'root (hd...)' line, no way to magically adapt device.map"), return;
my $real_boot_part = fs::get::root_($fstab, 'boot') or
log::l("argh... the fstab given is useless, it doesn't contain '/'"), return;
my $real_boot_dev = $real_boot_part->{rootDevice} or return; # if /boot is on Linux RAID 1, hope things are all right...
if (my $prev_boot_part = fs::get::device2part(grub2dev($boot_part, $grub2dev), $fstab)) { # the boot_device as far as grub config files say
$real_boot_part == $prev_boot_part and return;
}
log::l("WARNING: we have detected that device.map is inconsistent with the system");
my ($hd_grub, undef, undef) = parse_grub_file($boot_part); # extract hdX
if (my $prev_hd_grub = find { $grub2dev->{$_} eq $real_boot_dev } keys %$grub2dev) {
$grub2dev->{$prev_hd_grub} = $grub2dev->{$hd_grub};
log::l("swapping result: $hd_grub/$real_boot_dev and $prev_hd_grub/$grub2dev->{$hd_grub}");
} else {
log::l("argh... can't swap, setting $hd_grub to $real_boot_dev anyway");
}
$grub2dev->{$hd_grub} = $real_boot_dev;
}
sub read_grub_install_sh() {
my $s = cat_("$::prefix/boot/grub/install.sh");
my %h;
#- 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 ($s =~ /^(?:setup.*|install\s.*\sd)\s+(\(.*?\))/m) {
$h{boot} = $1;
}
if ($s =~ /^root\s+(\(.*?\))/m) {
$h{boot_part} = $1;
}
\%h;
}
sub _parse_grub_menu_lst() {
my $global = 1;
my ($e, %b);
my $menu_lst_file = "$::prefix/boot/grub/menu.lst";
-e $menu_lst_file or return;
foreach (MDK::Common::File::cat_utf8($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} = $v;
} else {
if ($keyword eq 'kernel') {
$e->{type} = 'image';
$e->{kernel} = $v;
} elsif ($keyword eq 'chainloader') {
$e->{type} = 'other';
$e->{append} = "";
} elsif ($keyword eq 'configfile') {
$e->{type} = 'grub_configfile';
$e->{configfile} = $v;
} elsif ($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} .= $verbatim;
}
%b;
}
sub read_grub_menu_lst {
my ($fstab, $grub2dev) = @_;
my %b = _parse_grub_menu_lst();
foreach my $keyword (grep { $_ ne 'entries' } keys %b) {
$b{$keyword} = $b{$keyword} eq '' ? 1 : grub2file($b{$keyword}, $grub2dev, $fstab, \%b);
}
#- sanitize
foreach my $e (@{$b{entries}}) {
if (member($e->{type}, 'other', 'grub_configfile')) {
eval { $e->{kernel_or_dev} = grub2dev($e->{rootnoverify} || $e->{grub_root}, $grub2dev) };
$e->{keep_verbatim} = 1 unless $e->{kernel_or_dev};
} elsif ($e->{initrd}) {
my $initrd;
eval { $initrd = grub2file($e->{initrd}, $grub2dev, $fstab, $e)};
if ($initrd) {
$e->{initrd} = $initrd;
} else {
$e->{keep_verbatim} = 1;
}
}
if ($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*//;
eval { $e->{kernel_or_dev} = grub2file($kernel, $grub2dev, $fstab, $e) };
$e->{keep_verbatim} = 1 unless $e->{kernel_or_dev} && dirname($e->{kernel_or_dev}) eq '/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, $unsafe);
}
# list of places where we can install the bootloader
sub allowed_boot_parts {
my ($bootloader, $all_hds) = @_;
(
@{$all_hds->{hds}}, # MBR
if_($bootloader->{method} =~ /lilo/,
grep { $_->{level} eq '1' } @{$all_hds->{raids}}
),
(grep { !isFat_or_NTFS($_) } fs::get::fstab($all_hds)), # filesystems except those who do not leave space for our bootloaders
detect_devices::floppies(),
);
}
sub same_entries {
my ($a, $b) = @_;
foreach (uniq(keys %$a, keys %$b)) {
if (member($_, 'label', 'append', 'mapdrive', 'readonly', 'makeactive', 'verbatim')) {
next;
} elsif ($_ eq 'grub_root' && (!$a->{$_} || !$b->{$_})) {
#- grub_root is mostly internal stuff. if it misses, it's ok
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 $rel_b;
}
# for lilo & xen
sub get_mbootpack_filename {
my ($entry) = @_;
my $mbootpack_file = $entry->{initrd};
$mbootpack_file =~ s/\binitrd/mbootpack/;
$entry->{xen} && $mbootpack_file;
}
# for lilo & xen
sub build_mbootpack {
my ($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);
my $initrd_long = kernel_str2initrd_long($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;
log::l("adding $v->{kernel_or_dev}");
if (!$b_no_initrd) {
$v->{initrd} = mkinitrd($kernel_str->{version}, $bootloader, $v, "/boot/$initrd_long");
}
if (!$b_nolink) {
$v->{kernel_or_dev} = '/boot/' . kernel_str2vmlinuz_short($kernel_str);
_do_the_symlink($bootloader, $v->{kernel_or_dev}, $vmlinuz_long);
if ($v->{initrd}) {
$v->{initrd} = '/boot/' . kernel_str2initrd_short($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, $initrd_long);
}
}
# unused (?)
sub duplicate_kernel_entry {
my ($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 { $_->{type} eq 'image' && !$_->{keep_verbatim} && !($::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 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, $key);
}
sub get_append_netprofile {
my ($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);
}
# used when a bootloader $entry has been modified (eg: $entry->{vga})
sub configure_entry {
my ($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!;
$return;
}
# for lilo
sub suggest_message_text {
my ($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 $mbr;
# If installing onto an USB drive, put the mbr there, else on the first non removable drive
if ($root_part->{is_removable}) {
$mbr = fs::get::part2hd($root_part, $all_hds);
} else {
$mbr = find { !$_->{is_removable} } @{$all_hds->{hds}};
}
my ($onmbr, $unsafe) = $bootloader->{crushMbr} ? (1, 0) : suggest_onmbr($mbr);
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 ? $mbr->{device} : $boot),
map => "/boot/map",
compact => 1,
'large-memory' => 1,
color => 'black/cyan yellow/cyan',
'menu-scheme' => 'wb:bw:wb:bw'
),
});
suggest_message_text($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 { $_->{active}
&& isFat_or_NTFS($_) && member(fs::type::fs_type_from_magic($_), 'vfat', 'ntfs', 'ntfs-3g')
&& !isRecovery($_);
}
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), # best installed
method_choices($all_hds, 0)); # or best if no valid one is installed
if (main_method($bootloader->{method}) eq 'grub') {
foreach my $c (find_other_distros_grub_conf($fstab)) {
add_entry($bootloader, {
type => 'grub_configfile',
label => $c->{name},
kernel_or_dev => "/dev/$c->{bootpart}{device}",
configfile => $c->{grub_conf},
});
}
}
}
sub detect_main_method {
my ($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}, $_->{main_method}) } config_files();
difference2([ main_method_choices(1) ], \@bad_main_methods);
}
# for lilo
sub keytable {
my ($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, $dev);
chomp($of_dev);
log::l("OF Device: $of_dev");
$of_dev;
}
sub check_enough_space() {
my $e = "$::prefix/boot/.enough_space";
output $e, 1; -s $e or die N("not enough room in /boot");
unlink $e;
}
sub write_yaboot {
my ($bootloader, $all_hds) = @_;
my $fstab = [ fs::get::fstab($all_hds) ];
my $file2yaboot = sub {
my ($part, $file) = fs::get::file2part($fstab, $_[0]);
dev2yaboot('/dev/' . $part->{device}) . "," . $file;
};
#- do not write yaboot.conf for old-world macs
my $mac_type = detect_devices::get_mac_model();
return if $mac_type =~ /Power Macintosh/;
$bootloader->{prompt} ||= $bootloader->{timeout};
if ($bootloader->{message_text}) {
eval { output("$::prefix/boot/message", $bootloader->{message_text}) }
and $bootloader->{message} = '/boot/message';
}
my @conf;
if (!get_label($bootloader->{default}, $bootloader)) {
log::l("default bootloader entry $bootloader->{default} is invalid, choosing another one");
$bootloader->{default} = $bootloader->{entries}[0]{label};
}
push @conf, "# yaboot.conf - generated by DrakX/drakboot";
push @conf, "# WARNING: do not forget to run ybin after modifying this file\n";
push @conf, "default=" . make_label_lilo_compatible($bootloader->{default}) if $bootloader->{default};
push @conf, sprintf('init-message="\n%s\n"', $bootloader->{'init-message'}) if $bootloader->{'init-message'};
if ($bootloader->{boot}) {
push @conf, "boot=$bootloader->{boot}";
push @conf, "ofboot=" . dev2yaboot($bootloader->{boot}) if $mac_type !~ /IBM/;
} else {
die "no bootstrap partition defined.";
}
push @conf, map { "$_=$bootloader->{$_}" } grep { $bootloader->{$_} } (qw(delay timeout), if_($mac_type !~ /IBM/, 'defaultos'));
push @conf, "install=/usr/lib/yaboot/yaboot";
if ($mac_type =~ /IBM/) {
push @conf, 'nonvram';
} else {
push @conf, 'magicboot=/usr/lib/yaboot/ofboot';
push @conf, grep { $bootloader->{$_} } qw(enablecdboot enableofboot);
}
foreach my $entry (@{$bootloader->{entries}}) {
if ($entry->{type} eq "image") {
push @conf, "$entry->{type}=" . $file2yaboot->($entry->{kernel_or_dev});
my @entry_conf;
push @entry_conf, "label=" . make_label_lilo_compatible($entry->{label});
push @entry_conf, "root=$entry->{root}";
push @entry_conf, "initrd=" . $file2yaboot->($entry->{initrd}) if $entry->{initrd};
#- xfs module on PPC requires larger initrd - say 6MB?
push @entry_conf, "initrd-size=6144" if $bootloader->{xfsroot};
push @entry_conf, qq(append=" $entry->{append}") if $entry->{append};
push @entry_conf, grep { $entry->{$_} } qw(read-write read-only);
push @conf, map { "\t$_" } @entry_conf;
} else {
my $of_dev = dev2yaboot($entry->{kernel_or_dev});
push @conf, "$entry->{type}=$of_dev";
}
}
my $f = "$::prefix/etc/yaboot.conf";
log::l("writing yaboot config to $f");
renamef($f, "$f.old");
output($f, map { "$_\n" } @conf);
}
sub install_yaboot {
my ($bootloader, $all_hds) = @_;
log::l("Installing boot loader...");
write_yaboot($bootloader, $all_hds);
when_config_changed_yaboot($bootloader);
}
sub when_config_changed_yaboot {
my ($bootloader) = @_;
$::testing and return;
if (defined $partition_table::mac::new_bootstrap) {
run_program::run("hformat", $bootloader->{boot}) or die "hformat failed";
}
my $error;
run_program::rooted($::prefix, "/usr/sbin/ybin", "2>", \$error) or die "ybin failed: $error";
}
sub install_cromwell {
my ($_bootloader, $_all_hds) = @_;
log::l("XBox/Cromwell - nothing to install...");
}
sub write_cromwell {
my ($_bootloader, $_all_hds) = @_;
log::l("XBox/Cromwell - nothing to write...");
}
sub when_config_changed_cromwell {
my ($_bootloader) = @_;
log::l("XBox/Cromwell - nothing to do...");
}
sub simplify_label {
my ($label) = @_;