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author | Colin Guthrie <colin@mageia.org> | 2013-12-02 23:40:22 +0000 |
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committer | Colin Guthrie <colin@mageia.org> | 2013-12-07 18:32:06 +0000 |
commit | e7aedc3aa7e08f3337c86085c6da10ca83445024 (patch) | |
tree | 4005be196198d60c655e345d43fef926bbac6702 /rescue/sbin/partimage_whole_disk | |
parent | 2ad4c4fc0b990dd0db23cdee815ac2a13c60929d (diff) | |
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rescue: Move files around and introduce proper dep tracking.
This moves any perl files into bin and sbin folders which will be directly installed
in /usr/bin and /usr/sbin. This is done such that the extract modes in list.xml still
work and the files end up in the right places.
All other files have been moved into the tree folder in their final destination.
Diffstat (limited to 'rescue/sbin/partimage_whole_disk')
-rwxr-xr-x | rescue/sbin/partimage_whole_disk | 264 |
1 files changed, 264 insertions, 0 deletions
diff --git a/rescue/sbin/partimage_whole_disk b/rescue/sbin/partimage_whole_disk new file mode 100755 index 000000000..ed0653a95 --- /dev/null +++ b/rescue/sbin/partimage_whole_disk @@ -0,0 +1,264 @@ +#!/usr/bin/perl + +use lib qw(/usr/lib/libDrakX); +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; + +my %options = ( + save_home_directory => 1, + empty_space_at_end_of_disk => 0, # 300 * 1024 * 2, # 300MB + ask_before_modifying_home => 1, + bzip2 => 1, +); + +my ($server); +if ($ARGV[0] eq '-s') { + (undef, $server, @ARGV) = @ARGV; +} +my $action = shift @ARGV; + +sub usage() { die "partimage_whole_disk [-s <server>] (save_all <dir> | rest_all <dir>)\n" } + +$ENV{PATH} = "/sbin:/usr/sbin:$ENV{PATH}"; +$ENV{HOME} = '/'; +log::openLog("/var/log/partimage_whole_disk.log"); +my @partimage_cmd = ('partimage', if_($server, '-s', $server, '-n', '-L')); + +@ARGV == 1 or usage(); + +if ($server && !is_network_configured()) { + run_program::run('drvinst', 'NETWORK'); + run_program::run('dhcp-client'); +} + +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', 'ntfs-3g', '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, + if_($options{bzip2}, '-z', 2), + '-V', 0, '--nombr', '--nodesc', '--nocheck', '-b', '-o', + 'save', devices::make($_->{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', 'ntfs-3g') } @$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, $extended ? 'Extended' : 'Primary'); + foreach ('device', if_(!$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"; +} + +sub is_network_configured() { + my (undef, @l) = cat_('/proc/net/route'); + find { /^(\S+)/ && $1 ne 'lo' } @l; +} |