diff options
Diffstat (limited to 'lib/MDV/Draklive/Initrd.pm')
| -rw-r--r-- | lib/MDV/Draklive/Initrd.pm | 314 |
1 files changed, 0 insertions, 314 deletions
diff --git a/lib/MDV/Draklive/Initrd.pm b/lib/MDV/Draklive/Initrd.pm deleted file mode 100644 index a2e8ee1..0000000 --- a/lib/MDV/Draklive/Initrd.pm +++ /dev/null @@ -1,314 +0,0 @@ -package MDV::Draklive::Initrd; - -use MDK::Common; -use common; -use list_modules; -use MDV::Draklive::Utils; -use MDV::Draklive::StorageFS; -use MDV::Draklive::Loopback; -use MDV::Draklive::Overlay; -use File::Basename; - -my %module_to_config = ( - ext3 => 'EXT3_FS', - sd_mod => 'BLK_DEV_SD', -); - -sub require_module_in_chroot { - my ($live, $module) = @_; - my $chroot_module = cat_($live->get_system_root . "/usr/lib/libDrakX/$module.pm"); - $chroot_module =~ s/^package $module;\B/package ${module}_chroot;/; - my $tmp_module = $live->get_system_root . "/tmp/${module}_chroot.pm"; - output_p($tmp_module, $chroot_module); - require $tmp_module; - unlink $tmp_module; -} - -sub nls_modules { - my ($live) = @_; - my $fs = $live->{media}->get_media_setting('fs'); - if_($fs eq 'vfat', 'nls_cp437'), #- default FAT codepage - if_($fs !~ /^ext/, map { "nls_$_" } (map { "iso8859_$_" } 1..7, 9, 13..15), 'utf8'); -} - -sub create_media_initrd { - my ($live) = @_; - create_initrd_for_media($live, $live->{media}); - cp_f($live->get_builddir . $live->{prefix}{build}{boot} . $live->{media}->get_initrd_path, - $live->{copy_initrd}) if $live->{copy_initrd}; -} - -sub inst_initrd_file { - my ($root, $initrd_tree, $file) = @_; - if ($file =~ m|/s?bin/|) { - inst_initrd_bin($root, $initrd_tree, $file); - } else { - mkdir_p($initrd_tree . dirname($file)); - inst_initrd_dso_deps($root, $initrd_tree, $file) if $file =~ m|/lib[^/]*/|; - cp_f($root . $file, $initrd_tree . $file) or die "unable to copy $file from system chroot\n"; - } -} - -sub inst_initrd_dso_deps { - my ($root, $initrd_tree, $dso) = @_; - foreach my $file (`chroot $root ldd $dso | awk '/\\// {if(\$2 == "=>") {print \$3} else {print \$1}}'`) { - chomp $file; - $file =~ s!^(/lib[^/]*)/(?:i686|tls)!$1!; - my ($lib_prefix, $filename) = $file =~ m|(/lib[^/]*).*/([^/]+)$| or next; - my $dest = $initrd_tree . $lib_prefix . '/' . $filename; - mkdir_p($initrd_tree . $lib_prefix); - -f $dest || cp_f($root . $file, $dest) or die "unable to copy $filename from system chroot\n"; - } -} -sub inst_initrd_bin { - my ($root, $initrd_tree, $bin) = @_; - cp_f($root . $bin, $initrd_tree . '/bin/'); - inst_initrd_dso_deps($root, $initrd_tree, $bin); -} - -sub create_initrd_for_media { - my ($live, $media) = @_; - my $initrd = $live->get_builddir . $live->{prefix}{build}{boot} . $media->get_initrd_path; - create_media_specific_initrd($live, $media, $live->get_system_root, $initrd, $live->find_kernel->{version}); -} - -sub create_media_specific_initrd { - my ($live, $media, $root, $initrd, $kernel) = @_; - - require_module_in_chroot($live, "list_modules"); - - my $lib_prefix = $live->get_lib_prefix; - my $initrd_tree = $live->get_builddir . $live->{prefix}{build}{initrd} . '/' . $media->{storage}; - rm_rf($initrd_tree) if -e $initrd_tree; - - mkdir_p($initrd_tree . $_) foreach - qw(/bin /dev /proc /sys /tmp), - map { $live->{prefix}{live}{mnt} . $_ } - $live->{prefix}{media}{mnt}, - $live->{mount}{root}, - map { $_->{mountpoint} } grep { !$loop_types{$_->{type}}{skip_mkdir} } @{$live->{mount}{dirs} || []}; - - #- use nash with label support - inst_initrd_bin($root, $initrd_tree, '/sbin/nash'); - inst_initrd_bin($root, $initrd_tree, '/usr' . $lib_prefix . '/drakx-installer-binaries/probe-modules'); - inst_initrd_bin($root, $initrd_tree, '/sbin/blockdev') - if $media->get_media_setting('rereadpt'); - inst_initrd_bin($root, $initrd_tree, '/usr/bin/strace') - if $live->{debug}; - - #- busybox is required to: - #- detect usb-storage process (we need sh/while/ps/grep) - #- mount loopbacks read-only with losetup (useful over NFS) - my $busybox = '/usr/bin/busybox'; - my $busybox_static = '/bin/busybox.static'; - $busybox = $busybox_static if -e $root . $busybox_static; - - inst_initrd_bin($root, $initrd_tree, $busybox); - my @l = map { /functions:/ .. /^$/ ? do { s/\s//g; split /,/ } : () } run_program::rooted_get_stdout($root, $busybox); - shift @l; - symlink(basename($busybox), $initrd_tree . "/bin/$_") foreach @l; - - my $fs = $media->get_media_setting('fs'); - my @used_loop_types = uniq(map { $_->{type} } @{$live->{mount}{dirs}}); - inst_initrd_bin($root, $initrd_tree, $_) foreach - MDV::Draklive::StorageFS::get_files($fs), - (map { @{$loop_types{$_} && $loop_types{$_}{files} || []} } @used_loop_types); - - output_p($initrd_tree . '/etc/fstab', ''); - output_p($initrd_tree . '/etc/mtab', ''); - - my $loop_nb = 254; - my $rrpt_dev = $media->get_media_setting('rereadpt'); - require devices; - devices::make($initrd_tree . "/dev/$_") foreach - if_($rrpt_dev, $rrpt_dev), - qw(console initrd null ram systty tty tty1), - (map { "tty$_" } 0..8), - (map { "loop$_" } 0 .. $loop_nb); - syscall_('mknod', $initrd_tree . "/dev/ptmx", c::S_IFCHR(), makedev(5, 2)) or die "mknod failed (dev $_): $!"; - syscall_('mknod', $initrd_tree . "/dev/fb", c::S_IFCHR(), makedev(29, 0)) or die "mknod failed (dev $_): $!"; - #- pre-create devfsd compatibility loop devices (since busybox is still built with devfsd support) - mkdir_p($initrd_tree . "/dev/loop"); - cp_af($initrd_tree . "/dev/loop$_", $initrd_tree . "/dev/loop/$_") foreach 0 .. $loop_nb; - - print "using kernel $kernel\n"; - my $kernel_root = "/lib/modules/" . $kernel; - list_modules::load_dependencies($kernel_root . "/modules.dep", $root); - - my ($storage_modules, $skipped) = partition { list_modules::modname2filename($_) } - uniq(map { modules::cond_mapping_24_26($_) } list_modules_chroot::category2modules($media->get_media_setting('modules'))); - my ($extra_modules, $extra_missing) = partition { list_modules::modname2filename($_) } - list_modules_chroot::category2modules($media->get_media_setting('media_modules')), - nls_modules($live), - $media->get_media_fs_module, - @{$media->get_media_setting('extra_modules') || []}, - (map { MDV::Draklive::Loopback::get_loop_modules($live, $_) } uniq(map { $_->{type} } @{$live->{mount}{dirs} || []})), - ($live->{mount}{overlay} ? @{$MDV::Draklive::Overlay::overlay{$live->{mount}{overlay}}{modules} || []} : ()); - - my @additional_modules = map { if_(m!([^/]+)\.ko(?:\.gz)?!, list_modules::filename2modname($1)) } @{$live->{system}{additional_modules}}; - @$extra_modules = difference2($extra_modules, \@additional_modules); - if (@{$live->{system}{exclude_modules} || []}) { - print STDERR "excluding modules: " . join(' ', @{$live->{system}{exclude_modules}}) . "\n"; - @$_ = difference2($_, $live->{system}{exclude_modules}) foreach $storage_modules, $extra_modules, $extra_missing; - } - - my @missing = sort(difference2($extra_missing, \@additional_modules)); - if (@missing) { - my @config = map { if_(/^CONFIG_(.*)=y$/, $1) } cat_($root . "/boot/config-" . $kernel); - my @really_missing = grep { !member($module_to_config{$_}, @config) } @missing; - @really_missing and die "missing mandatory modules:\n" . join("\n", @really_missing, ''); - } - - mkdir_p($initrd_tree . $kernel_root . "/kernel"); - my @modules = (@$storage_modules, @$extra_modules); - my @modules_closure = uniq(map { list_modules::dependencies_closure($_) } @modules); - foreach my $m (@modules_closure) { - my $full = list_modules::modname2path($m); - mkdir_p(dirname($initrd_tree . $full)); - cp_f($root . $full, $initrd_tree . $full); - } - foreach my $f (@{$live->{system}{additional_modules}}) { - my $destdir = $initrd_tree . $kernel_root . "/kernel"; - if ($f =~ /.gz$/) { - cp_f($live->{settings}{config_root} . '/' . $f, $destdir); - } else { - my $m = basename($f); - run_program::run('gzip', '>', "$destdir/$m.gz", '-c', $live->{settings}{config_root} . '/' . $f); - } - } - run_('depmod', '-b', $initrd_tree, $kernel); - - mkdir_p($initrd_tree . "/etc/blkid"); #- for nash and showlabels cache - mkdir_p($initrd_tree . "/lib/module-init-tools"); - cp_f($root . "/lib/module-init-tools/ldetect-lst-modules.alias", $initrd_tree . "/lib/module-init-tools"); - mkdir_p($initrd_tree . "/usr/share/ldetect-lst"); - cp_f($root . "/usr/share/pci.ids", $initrd_tree . "/usr/share"); - cp_f($root . "/usr/share/ldetect-lst/" . $_, $initrd_tree . "/usr/share/ldetect-lst") - foreach qw(fallback-modules.alias pcitable.gz usbtable.gz); - - @$skipped and print STDERR "skipped modules: " . join(' ', sort(@$skipped)) . "\n"; - - my @extra_modules_closure = map { list_modules::modname2filename($_) } - uniq(map { list_modules::dependencies_closure($_) } @$extra_modules); - create_initrd_scriptlet($live, $media, @extra_modules_closure, @additional_modules); - - print "Compressing initrd\n"; - compress_initrd_tree($live, $initrd_tree, $initrd); - add_splash($live, $initrd); -} - -sub create_initrd_scriptlet { - my ($live, $media, @modules) = @_; - my $target = $live->{prefix}{live}{mnt} . ($live->{mount}{root} || $live->{prefix}{media}{mnt}); - my $pre = $media->get_media_setting('pre'); - my $fs = $media->get_media_setting('fs'); - my $rrpt_dev = $media->get_media_setting('rereadpt'); - my $debug_shell = "sh -c 'if grep -q initrd_debug /proc/cmdline; then plymouth --quit; exec sh </dev/console >/dev/console 2>/dev/console; fi'"; - my ($mount_first, $mount_last) = partition { !$loop_types{$_->{type}}{delay_mount} } - grep { exists $loop_types{$_->{type}}{mount} } @{$live->{mount}{dirs} || []}; - my $initrdroot = "/initrd"; - - output_with_perm($live->get_builddir . $live->{prefix}{build}{initrd} . '/' . $media->{storage} . '/linuxrc', 0755, - join("\n", - "#!/bin/nash", - #- required for labels and ps - "nash-mount -t proc /proc /proc", - #- required for cdrom labels - "nash-mount -t sysfs /sys /sys", - "/bin/plymouthd", - "plymouth --show-splash", - (map { join(" ", "probe-modules", list_modules::filename2modname($_), grep { $_ } $live->{system}{module_options}{$_}) } @modules), - "probe-modules --$media->{storage}", - if_($rrpt_dev, - "echo *** Waiting for new partitions on device ${rrpt_dev} ***", - "sh -c 'while ! ls /sys/block/${rrpt_dev}/${rrpt_dev}* >/dev/null 2>&1; do sleep 3; blockdev --rereadpt /dev/${rrpt_dev} >/dev/null 2>&1; done'"), - $debug_shell, - if_($pre, deref_array($pre)), - "showlabels --removable", - MDV::Draklive::StorageFS::get_mount($fs)->($live, $media), - (map { $loop_types{$_->{type}}{mount}->($live, $_) } @$mount_first, @$mount_last), - ($live->{mount}{overlay} ? $MDV::Draklive::Overlay::overlay{$live->{mount}{overlay}}{mount}->($live) : ()), - if_($live->{system}{initrd_pre_pivot}, deref_array($live->{system}{initrd_pre_pivot})), - "plymouth --newroot=$target", - "echo 0x0100 > /proc/sys/kernel/real-root-dev", - "umount /sys", - "sh -c 'umount /sys/kernel/debug/usb 2>/dev/null'", - "umount /sys/kernel/debug/usb", - "pivot_root $target $target$initrdroot", - if_($live->{mount}{root}, "sh -c 'rmdir $initrdroot$live->{prefix}{live}{mnt}$live->{mount}{root}'"), - (map { $loop_types{$_->{type}}{pivot_clean}->($live, $_, $initrdroot) } grep { $loop_types{$_->{type}}{pivot_clean} } @{$live->{mount}{dirs} || []}), - "sh -c 'cd $initrdroot$live->{prefix}{live}{mnt}; for i in `ls -1`; do [ -d \$i ] || continue; mkdir -p $live->{prefix}{live}{mnt}/\$i; mount -n --move \$i $live->{prefix}{live}{mnt}/\$i; rmdir \$i; done'", - "rmdir $initrdroot$live->{prefix}{live}{mnt}", - "nash-mount -o mode=0755 -t tmpfs /dev /dev", - "sh -c 'rm -rf /dev/loop'", #- not needed after initrd - "sh -c 'mv $initrdroot/dev/* /dev/'", - if_($live->{system}{initrd_post}, deref_array($live->{system}{initrd_post})), - "")); -} - -sub compress_initrd_tree { - my ($live, $initrd_tree, $initrd) = @_; - - my $size = chomp_(run_program::get_stdout("du -ks $initrd_tree | awk '{print \$1}'")); - my $inodes = chomp_(run_program::get_stdout("find $initrd_tree | wc -l")) + 100; - my $initrd_size = $size + 350 + int($inodes / 10); #- 10 inodes needs 1K - $initrd_size += 1350; # plymouth - - $initrd =~ s/.gz$//; - - mkdir_p(dirname($initrd)); - run_('dd', 'if=/dev/zero', "of=$initrd", 'bs=1k', "count=$initrd_size"); - run_('mke2fs', '-q', '-m', 0, '-F', '-N', $inodes, '-s', 1, $initrd); - mkdir_p($live->{mnt}); - run_('mount', '-o', 'loop', '-t', 'ext2', $initrd, $live->{mnt}); - cp_af(glob("$initrd_tree/*"), $live->{mnt}); - rm_rf($live->{mnt} . "/lost+found"); - my $left = chomp_(run_program::get_stdout("df -Pk $live->{mnt} | tail -n 1 | awk '{ print \$4 }'")); - run_('umount', $live->{mnt}); - $left < 200 and die "not enough room to create initrd (only ${left}K left)\n"; - run_('gzip', '-f', '-9', $initrd); -} - -sub add_splash { - my ($live, $initrd) = @_; - if ($live->{system}{vga_mode} && $live->{system}{splash} ne 'no') { - my $chroot_initrd; - if ($initrd !~ m,^/boot/,) { - $chroot_initrd = '/tmp/initrd.gz'; - cp_f($initrd, $live->get_system_root . $chroot_initrd); - } else { - $chroot_initrd = $initrd; - } - - { - local $::prefix = $live->get_system_root; - #- also calls switch-themes -u (through make-boot-splash) - #- which will regenerate gfxboot current link - require bootloader; - bootloader::add_boot_splash($chroot_initrd, $live->{system}{vga_mode}); - } - - if ($chroot_initrd ne $initrd) { - cp_f($live->get_system_root . $chroot_initrd, $initrd); - unlink($live->get_system_root . $chroot_initrd); - } - } -} - -sub create_classical_initrd { - my ($live) = @_; - my $root = $live->get_system_root; - my $kernel = $live->find_kernel; - print "using kernel $kernel->{version}\n"; - - my $initrd_file = $root . '/boot/' . $live->get_initrd_name; - unlink($initrd_file); - - { - my $bootloader = {}; - local $::prefix = $root; - bootloader::add_kernel($bootloader, $kernel, { label => 'linux', vga => $live->{system}{vga_mode} }, '', $live->{system}{no_initrd}); - } -} - -1; |