#!/usr/bin/perl use lib qw(/usr/lib/libDrakX ../perl-install); use standalone; use fsedit; use fs::format; use fs::type; use resize_fat::main; use diskdrake::resize_ntfs; use diskdrake::resize_ext2; use common; use partition_table::empty; use Carp::Heavy; #- help getting the file in make_rescue_img BEGIN { partition_table::raw::default_type() } my %options = ( save_home_directory => 1, empty_space_at_end_of_disk => 0, # 300 * 1024 * 2, # 300MB ask_before_modifying_home => 0, ); my ($server); if ($ARGV[0] eq '-s') { (undef, $server, @ARGV) = @ARGV; } my $action = shift @ARGV; sub usage() { die "partimage_whole_disk [-s <server>] (save_all <dir> | rest_all <dirs>)\n" } $ENV{PATH} = "/sbin:/usr/sbin:$ENV{PATH}"; $ENV{HOME} = '/'; log::openLog("/var/log/partimage_whole_disk.log"); my @partimage_cmd = ('partimage', if_($server, '-s', $server)); @ARGV == 1 or usage(); run_program::run('drvinst', 'STORAGE_SCSI', 'STORAGE_IDE'); my $all_hds = fsedit::get_hds({}); if ($action eq 'save_all') { save_all($ARGV[0]); } elsif ($action eq 'rest_all') { rest_all($ARGV[0]); } sub save_all { my ($dir) = @_; my $base_dir = $dir; for (my $i = 0; read_part_list($dir); $i++) { #- find a free dir $dir = sprintf("$base_dir.%03d", $i); } my $hd = $all_hds->{hds}[0] or die "no main hard drive\n"; log::l("save_all on $hd->{device}"); my $part_list = [ partition_table::get_normal_parts($hd) ]; foreach (@$part_list) { $_->{saved} = !member($_->{fs_type}, 'ntfs', 'vfat', 'swap'); } if (!$options{save_home_directory}) { #- shrink and don't save the last ext3 partition (which is the /home partition) if (my $part = find { isTrueLocalFS($_) } reverse @$part_list) { $part->{size} = min($part->{size}, 1024 * 1024 * 2); # not greater than 1GB $part->{saved} = 0; } } foreach (grep { $_->{saved} } @$part_list) { run_or_die(@partimage_cmd, '-V', 0, '--nombr', '--nodesc', '--nocheck', '-b', '-o', 'save', devices::make($_->{device}), "$dir/$_->{device}"); } save_part_list($dir, $hd->{geom}, $part_list); } sub rest_all { my ($dir) = @_; my ($forced_geom, $part_list) = read_part_list($dir) or error("read_part_list $dir failed"); (my $hd) = my @used_hds = uniq(map { my $part = $_; find { $part->{device} =~ /^\Q$_->{device}\E./ } fs::get::hds($all_hds) or error("can't find hard drive for partition $part->{device}"); } @$part_list); @used_hds >= 1 or error("no matching hd"); @used_hds <= 1 or error("multiple hds: " . join(' ', map { $_->{device} } @used_hds)); fs::type::set_fs_type($_, $_->{fs_type}) foreach @$part_list; put_in_hash($_, partition_table::hd2minimal_part($hd)) foreach @$part_list; my ($from_partimage, $other) = partition { $_->{saved} } @$part_list; my ($from_resize, $created) = partition { member($_->{fs_type}, 'vfat', 'ntfs') } @$other; my $total = sum(map { $_->{size} } @$part_list); if ($total > $hd->{totalsectors}) { error("$dir doesn't fit: $total > $hd->{totalsectors}"); } foreach (@$from_resize) { #- resize first my $part = fs::get::device2part($_->{device}, [ fs::get::fstab($all_hds) ]); if (!$part) { log::l("partition to resize is missing ($_->{device})"); $_->{missing} = 1; next; } if ($part->{fs_type} ne $_->{fs_type}) { log::l("partition $_->{device} doesn't have the right filesystem ($part->{fs_type} != $_->{fs_type})"); $_->{missing} = 1; next; } if (@$from_resize == 1) { my $half_size = int($hd->{totalsectors} / 2) - 2 * $hd->cylinder_size; my $suggested_total = $total - $_->{size} + $half_size; log::l("resizing bigger? (size $_->{size}, half_size $half_size, total $total, suggested_total $suggested_total)"); if ($half_size > $_->{size} && $suggested_total < $hd->{totalsectors}) { log::l("prefering to resize $_->{device} to size $half_size instead of $_->{size}"); $_->{size} = $half_size; } } $_->{start} = $part->{start}; if ($_->{size} < $part->{size}) { log::l("resizing $_->{device} to $_->{size} (it is $part->{size})"); my $resize_pkg = $_->{fs_type} eq 'vfat' ? 'resize_fat::main' : 'diskdrake::resize_ntfs'; my $resize = $resize_pkg->new($_->{device}, devices::make($_->{device})); $resize->resize($_->{size}); } else { log::l("no need to resize, instead setting $_->{device}'s size to $part->{size} instead of $_->{size}"); $_->{size} = $part->{size}; } } put_in_hash($hd->{geom}, $forced_geom); log::l("totalsectors $hd->{totalsectors} heads $hd->{geom}{heads} sectors $hd->{geom}{sectors}"); partition_table::raw::compute_nb_cylinders($hd->{geom}, $hd->{totalsectors}); #- grow the last ext3 partition if (my $part = find { isTrueLocalFS($_) } reverse @$part_list) { $part->{ratio} = 1; if ($options{ask_before_modifying_home}) { print "\nkeep existing /home? (Y/n) "; if (<STDIN> !~ /n/i) { my $l = @$from_partimage > 1 ? $from_partimage : $created; #- it was meant to be restored or formatted my $p = pop @$l; log::l("keeping existing /home: removing $p->{device}"); } } } #- write the partition table partition_table::raw::zero_MBR($hd); foreach my $part (grep { $_->{rootDevice} eq $hd->{device} } @$part_list) { next if $part->{missing}; my $hole = find { isEmpty($_) && $_->{size} >= $part->{size} } partition_table::get_normal_parts_and_holes($hd) or die "not enough room for $part->{device}"; $part->{start} = $hole->{start}; log::l("handling $part->{device}"); my $extended = $part->{device} =~ /(\d+)$/ && $1 > 4 && $hd->hasExtended; my %wanted_part = %$part; if ($part->{ratio}) { $part->{size} = $hole->{size} - ($options{empty_space_at_end_of_disk} || 0); } else { $part->{size} += $hd->{geom}{sectors} if $extended; $part->{size} += $hd->cylinder_size if $part->{start} == 1; } log::l("adding $part->{device} with size $part->{size}"); partition_table::add($hd, $part, $extended && 'Extended'); foreach ('device', if_(!$part->{ratio}, 'size')) { $part->{$_} eq $wanted_part{$_} or log::l("bad $_ for $part->{device}: $part->{$_} != $wanted_part{$_}"); } } partition_table::write($hd); #- restore from partimage foreach (@$from_partimage) { run_or_die(@partimage_cmd, 'restore', '-b', devices::make($_->{device}), "$dir/$_->{device}"); if ($_->{ratio}) { my $resize = diskdrake::resize_ext2->new($_->{device}, devices::make($_->{device})); $resize->resize($_->{size}); } } foreach (@$created) { fs::format::part_raw($_, undef); } run_program::run('guessmounts'); if (my @missing = grep { $_->{missing} } @$part_list) { my $missing = join('|', map { quotemeta($_->{device}) } @missing); log::l("drop missing devices from fstab and lilo.conf: $missing"); $::prefix = '/mnt'; substInFile { $_ = '' if m!^/dev/($missing)\s! } "$::prefix/etc/fstab"; my $match; substInFile { /^\S/ and $match = m!^other=/dev/($missing)$!; $_ = '' if $match; } "$::prefix/etc/lilo.conf"; } run_or_die('install_bootloader', '--auto'); print "\n", "Your system is ready, press enter to reboot (Y/n) "; if (<STDIN> !~ /n/i) { run_program::run('reboot'); } } sub lst_fields() { qw(device size fs_type saved) } sub save_part_list { my ($dir, $geom, $part_list) = @_; my @l = map { join(' ', @$_{lst_fields()}) } @$part_list; log::l("save_part_list $dir: $_") foreach @l; my $partimage = join(' ', @partimage_cmd); open(my $F, "| $partimage -z0 -Bfoo=bar -o save_file $dir/lst"); print $F join("/", $geom->{heads}, $geom->{sectors}), "\n"; print $F "$_\n" foreach @l; } sub read_part_list { my ($dir) = @_; my $partimage = join(' ', @partimage_cmd); open(my $F, "$partimage -z0 -Bfoo=bar rest_file $dir/lst |"); my $geom_string = <$F> or return; my %geom; @geom{'heads', 'sectors'} = split('/', chomp_($geom_string)); my @l = chomp_(cat__($F)); log::l("read_part_list $dir: $_") foreach @l; \%geom, [ map { my %l; @l{lst_fields()} = split; \%l } @l ]; } sub run_or_die { my (@l) = @_; run_program::raw({ timeout => 4 * 60 * 60 }, @l) or die join(' ', @l) . " failed\n"; } sub error { my ($msg) = @_; log::l($msg); die "$msg\n"; }