path: root/perl-install/diskdrake/interactive.pm

package diskdrake::interactive; # $Id$

use diagnostics;
use strict;

use common;
use fs::type;
use fs::loopback;
use fs::format;
use fs::mount_options;
use fs;
use partition_table;
use partition_table::raw;
use detect_devices;
use run_program;
use devices;
use fsedit;
use raid;
use any;
use log;


=begin

=head1 SYNOPSYS

struct part {
  int active            # one of { 0 | 0x80 }  x86 only, primary only
  int start             # in sectors
  int size              # in sectors
  int pt_type           # 0x82, 0x83, 0x6 ...
  string fs_type        # 'ext2', 'nfs', ...

  int part_number       # 1 for hda1...
  string device         # 'hda5', 'sdc1' ...
  string devfs_device   # 'ide/host0/bus0/target0/lun0/part5', ...
  string prefer_devfs_name # should the {devfs_device} or the {device} be used in fstab
  string device_LABEL   # volume label. LABEL=xxx can be used in fstab instead of
  bool prefer_device_LABEL # should the {device_LABEL} or the {device} be used in fstab
  bool faked_device     # false if {device} is a real device, true for nfs/smb/dav/none devices. If the field does not exist, we do not know

  string rootDevice     # 'sda', 'hdc' ... (can also be a VG_name)
  string real_mntpoint  # directly on real /, '/tmp/hdimage' ...
  string mntpoint       # '/', '/usr' ...
  string options        # 'defaults', 'noauto'
  string device_windobe # 'C', 'D' ...
  string encrypt_key    # [0-9A-Za-z./]{20,}
  string comment        # comment to have in fstab
  string volume_label   # 

  bool is_removable     # is the partition on a removable drive
  bool isMounted

  bool isFormatted
  bool notFormatted 
    #  isFormatted                  means the device is formatted
    # !isFormatted &&  notFormatted means the device is not formatted
    # !isFormatted && !notFormatted means we do not know which state we're in

  string raid       # for partitions of type isRawRAID and which isPartOfRAID, the raid device
  string lvm        # partition used as a PV for the VG with {lvm} as VG_name  #-#
  loopback loopback[]   # loopback living on this partition

  # internal
  string real_device     # '/dev/loop0', '/dev/loop1' ...

  # internal CHS (Cylinder/Head/Sector)
  int start_cyl, start_head, start_sec, end_cyl, end_head, end_sec, 
}

struct part_allocate inherits part {
  int maxsize        # in sectors (alike "size")
  int ratio          # 
  string hd          # 'hda', 'hdc'
  string parts       # for creating raid partitions. eg: 'foo bar' where 'foo' and 'bar' are mntpoint
}

struct part_raid inherits part {
  string chunk-size  # in KiB, usually '64'
  string level       # one of { 0, 1, 4, 5, 'linear' }
  string UUID

  part disks[]

  # invalid: active, start, rootDevice, device_windobe?, CHS
}

struct part_loopback inherits part {
  string loopback_file   # absolute file name which is relative to the partition
  part loopback_device   # where the loopback file live

  # device is special here: it is the absolute filename of the loopback file.

  # invalid: active, start, rootDevice, device_windobe, CHS
}

struct part_lvm inherits part {
  # invalid: active, start, device_windobe, CHS
  string lv_name
}


struct partition_table_elem {
  part normal[]     #
  part extended     # the main/next extended
  part raw[4]       # primary partitions
}

struct geom {
  int heads 
  int sectors
  int cylinders
  int totalcylinders # for SUN, forget it
  int start          # always 0, forget it
}

struct hd {
  int totalsectors      # size in sectors
  string device         # 'hda', 'sdc' ...
  string device_alias   # 'cdrom', 'floppy' ...
  string media_type     # one of { 'hd', 'cdrom', 'fd', 'tape' }
  string capacity       # contain of the strings of { 'burner', 'DVD' }
  string info           # name of the hd, eg: 'QUANTUM ATLAS IV 9 WLS'

  bool readonly         # is it allowed to modify the partition table
  bool getting_rid_of_readonly_allowed # is it forbidden to write because the partition table is badly handled, or is it because we MUST not change the partition table
  bool isDirty          # does it need to be written to the disk 
  list will_tell_kernel # list of actions to tell to the kernel so that it knows the new partition table
  bool hasBeenDirty     # for undo
  bool rebootNeeded     # happens when a kernel reread failed
  list partitionsRenumbered # happens when you
                            # - remove an extended partition which is not the last one
                            # - add an extended partition which is the first extended partition
  list allPartitionsRenumbered # used to update bootloader configuration
  int bus, id
  
  partition_table_elem primary
  partition_table_elem extended[]

  geom geom

  # internal
  string prefix         # for some RAID arrays device=>c0d0 and prefix=>c0d0p
  string file           # '/dev/hda' ...
}

struct hd_lvm inherits hd {
  int PE_size           # block size (granularity, similar to cylinder size on x86)
  string VG_name        # VG name

  part_lvm disks[]

  # invalid: bus, id, extended, geom
}

struct raw_hd inherits hd {
  string fs_type       # 'ext2', 'nfs', ...
  string mntpoint   # '/', '/usr' ...
  string options    # 'defaults', 'noauto'

  # invalid: isDirty, will_tell_kernel, hasBeenDirty, rebootNeeded, primary, extended
}

struct all_hds {
  hd hds[]
  hd_lvm lvms[]
  part_raid raids[]
  part_loopback loopbacks[]
  raw_hd raw_hds[]
  raw_hd nfss[]
  raw_hd smbs[]
  raw_hd davs[]
  raw_hd special[]

  # internal: if fstab_to_string($all_hds) eq current_fstab then no need to save
  string current_fstab
}


=cut


sub main {
    my ($in, $all_hds, $_nowizard, $do_force_reload, $_interactive_help) = @_;

    if ($in->isa('interactive::gtk')) {
	require diskdrake::hd_gtk;
	goto &diskdrake::hd_gtk::main;
    }

    my ($current_part, $current_hd);
    
    while (1) {
	my $choose_txt = $current_part ? N_("Choose another partition") : N_("Choose a partition");
	my $parts_and_holes = [ fs::get::fstab_and_holes($all_hds) ];
	my $choose_part = sub {
	    $current_part = $in->ask_from_listf('diskdrake', translate($choose_txt), 
						sub {
						    my $hd = fs::get::part2hd($_[0] || return, $all_hds);
						    format_part_info_short($hd, $_[0]);
						}, $parts_and_holes, $current_part) || return;
	    $current_hd = fs::get::part2hd($current_part, $all_hds);
	};

	$choose_part->() if !$current_part;
	return if !$current_part;

	my %actions = my @actions = (
            if_($current_part, 
          (map { my $s = $_; $_ => sub { $diskdrake::interactive::{$s}($in, $current_hd, $current_part, $all_hds) } } part_possible_actions($in, $current_hd, $current_part, $all_hds)),
		'____________________________' => sub {},
            ),
            if_(@$parts_and_holes > 1, $choose_txt => $choose_part),
	    if_($current_hd,
	  (map { my $s = $_; $_ => sub { $diskdrake::interactive::{$s}($in, $current_hd, $all_hds) } } hd_possible_actions_interactive($in, $current_hd, $all_hds)),
	    ), 
	  (map { my $s = $_; $_ => sub { $diskdrake::interactive::{$s}($in, $all_hds) } } general_possible_actions($in, $all_hds)),
        );
	my ($actions) = list2kv(@actions);
	my $a;
	if ($current_part) {
	    $in->ask_from_({
			    cancel => N("Exit"), 
			    title => 'diskdrake',
			    messages => format_part_info($current_hd, $current_part),
			   },
			   [ { val => \$a, list => $actions, format => \&translate, type => 'list', sort => 0, gtk => { use_boxradio => 0 } } ]) or last;
	    my $v = eval { $actions{$a}() };
	    if (my $err = $@) {
		$in->ask_warn(N("Error"), formatError($err));		
	    }
	    if ($v eq 'force_reload') {
		$all_hds = $do_force_reload->();
	    }
	    $current_hd = $current_part = '' if !is_part_existing($current_part, $all_hds);	    
	} else {
	    $choose_part->();
	}
	partition_table::assign_device_numbers($_) foreach fs::get::hds($all_hds);
    }
    return if eval { Done($in, $all_hds) };
    if (my $err = $@) {
    	$in->ask_warn(N("Error"), formatError($err));
    }
    goto &main;
}




################################################################################
# general actions
################################################################################
sub general_possible_actions {
    my ($_in, $_all_hds) = @_;
    N_("Undo"), ($::expert ? N_("Toggle to normal mode") : N_("Toggle to expert mode"));
}


sub Undo {
    my ($_in, $all_hds) = @_;
    undo($all_hds);
}

sub Wizard {
    $::o->{wizard} = 1;
    goto &Done;
}

sub Done {
    my ($in, $all_hds) = @_;
    eval { raid::verify($all_hds->{raids}) };
    if (my $err = $@) {
	$::expert or die;
	$in->ask_okcancel('', [ formatError($err), N("Continue anyway?") ]) or return;
    }
    foreach (@{$all_hds->{hds}}) {
	if (!write_partitions($in, $_, 'skip_check_rebootNeeded')) {
	    return if !$::isStandalone;
	    $in->ask_yesorno(N("Quit without saving"), N("Quit without writing the partition table?"), 1) or return;
	}
    }
    if (!$::isInstall) {
	my $new = fs::fstab_to_string($all_hds);
	if ($new ne $all_hds->{current_fstab} && $in->ask_yesorno('', N("Do you want to save /etc/fstab modifications"), 1)) {
	    $all_hds->{current_fstab} = $new;
	    fs::write_fstab($all_hds);
	}
	update_bootloader_for_renumbered_partitions($in, $all_hds);

	if (any { $_->{rebootNeeded} } @{$all_hds->{hds}}) {
	    $in->ask_warn('', N("You need to reboot for the partition table modifications to take place"));
	    tell_wm_and_reboot();
	}
    }
    if (my $part = find { $_->{mntpoint} && !maybeFormatted($_) } fs::get::fstab($all_hds)) {
	$in->ask_okcancel('', N("You should format partition %s.
Otherwise no entry for mount point %s will be written in fstab.
Quit anyway?", $part->{device}, $part->{mntpoint})) or return if $::isStandalone;
    }
    1;
}

################################################################################
# per-hd actions
################################################################################
sub hd_possible_actions {
    my ($_in, $hd, $_all_hds) = @_;
    ( 
     if_(!$hd->{readonly} || $hd->{getting_rid_of_readonly_allowed}, N_("Clear all")), 
     if_(!$hd->{readonly} && $::isInstall, N_("Auto allocate")),
     N_("More"),
    );
}
sub hd_possible_actions_interactive {
    my ($_in, $_hd, $_all_hds) = @_;
    &hd_possible_actions, N_("Hard drive information");
}

sub Clear_all {
    my ($in, $hd, $all_hds) = @_;
    return if detect_devices::is_xbox(); #- do not let them wipe the OS
    my @parts = partition_table::get_normal_parts($hd);
    foreach (@parts) {
	RemoveFromLVM($in, $hd, $_, $all_hds) if isPartOfLVM($_);
	RemoveFromRAID($in, $hd, $_, $all_hds) if isPartOfRAID($_);
    }
    if (isLVM($hd)) {
	lvm::lv_delete($hd, $_) foreach @parts;
    } else {
	$hd->{readonly} = 0; #- give a way out of readonly-ness. only allowed when getting_rid_of_readonly_allowed
	$hd->{getting_rid_of_readonly_allowed} = 0;
	partition_table::raw::zero_MBR_and_dirty($hd);
    }
}

sub Auto_allocate {
    my ($in, $hd, $all_hds) = @_;
    my $suggestions = partitions_suggestions($in) or return;

    my %all_hds_ = %$all_hds;
    $all_hds_{hds} = [ sort { $a == $hd ? -1 : 1 } fs::get::hds($all_hds) ];

    eval { fsedit::auto_allocate(\%all_hds_, $suggestions) };
    if ($@) {
	$@ =~ /partition table already full/ or die;

	$in->ask_warn("", [ 
			   N("All primary partitions are used"),
			   N("I can not add any more partitions"), 
			   N("To have more partitions, please delete one to be able to create an extended partition"),
			  ]);
    }
}

sub More {
    my ($in, $hd) = @_;

    my %automounting = (
	0 => N("No supermount"), 
	1 => N("Supermount"),
	magicdev => N("Supermount except for CDROM drives"),
    );

    my $r;
    $in->ask_from('', '',
	    [
	     { val => N("Save partition table"),    clicked_may_quit => sub { SaveInFile($in, $hd);   1 } },
	     { val => N("Restore partition table"), clicked_may_quit => sub { ReadFromFile($in, $hd); 1 } },
	     { val => N("Rescue partition table"),  clicked_may_quit => sub { Rescuept($in, $hd);     1 } },
	         if_($::isInstall, 
	     { val => N("Reload partition table"), clicked_may_quit => sub { $r = 'force_reload'; 1 } }),
	         if_($::isInstall || 1, 
	     { label => N("Removable media automounting"), val => \$::o->{useSupermount}, 
	       format => sub { $automounting{$_[0]} }, 
	       list => [ 0, 'magicdev', 1 ], advanced => 1 },
		 ),
	    ],
    ) && $r;
}

sub ReadFromFile {
    my ($in, $hd) = @_;

    my ($h, $file, $fh);
    if ($::isStandalone) {
	$file = $in->ask_filename({ title => N("Select file") }) or return;
    } else {
	undef $h; #- help perl_checker
	my $name = $hd->{device}; $name =~ s!/!_!g;
	($h, $fh) = install_any::media_browser($in, '', "part_$name") or return;
    }

    eval {
    catch_cdie { partition_table::load($hd, $file || $fh) }
      sub {
	  $@ =~ /bad totalsectors/ or return;
	  $in->ask_yesorno('',
N("The backup partition table has not the same size
Still continue?"), 0);
      };
    };
    if (my $err = $@) {
    	$in->ask_warn(N("Error"), formatError($err));
    }
}

sub SaveInFile {
    my ($in, $hd) = @_;

    my ($h, $file) = ('', '');
    if ($::isStandalone) {
	$file = $in->ask_filename({ save => 1, title => N("Select file") }) or return;
    } else {
	undef $h; #- help perl_checker
	my $name = $hd->{device}; $name =~ s!/!_!g;
	($h, $file) = install_any::media_browser($in, 'save', "part_$name") or return;
    }

    eval { partition_table::save($hd, $file) };
    if (my $err = $@) {
    	$in->ask_warn(N("Error"), formatError($err));
    }
}

sub Rescuept {
    my ($in, $hd) = @_;
    my $_w = $in->wait_message('', N("Trying to rescue partition table"));
    fsedit::rescuept($hd);
}

sub Hd_info {
    my ($in, $hd) = @_;
    $in->ask_warn('', [ N("Detailed information"), format_hd_info($hd) ]);
}

################################################################################
# per-part actions
################################################################################

sub part_possible_actions {
    my ($_in, $hd, $part, $all_hds) = @_;
    $part or return;

    my %actions = my @l = (
        N_("Mount point")      => '$part->{real_mntpoint} || (!isBusy && !isSwap && !isNonMountable)',
        N_("Type")             => '!isBusy && $::expert && (!readonly || $part->{pt_type} == 0x83)',
        N_("Options")          => '!isNonMountable && $::expert',
	N_("Label")            => '!isNonMountable && $::expert',
        N_("Resize")	       => '!isBusy && !readonly && !isSpecial || isLVM($hd) && LVM_resizable',
        N_("Format")           => '!isBusy && !readonly && ($::expert || $::isStandalone)',
        N_("Mount")            => '!isBusy && (hasMntpoint || isSwap) && maybeFormatted && ($::expert || $::isStandalone)',
        N_("Add to RAID")      => '!isBusy && isRawRAID && (!isSpecial || isRAID)',
        N_("Add to LVM")       => '!isBusy && isRawLVM',
        N_("Unmount")          => '!$part->{real_mntpoint} && isMounted',
        N_("Delete")	       => '!isBusy && !readonly',
        N_("Remove from RAID") => 'isPartOfRAID',
        N_("Remove from LVM")  => 'isPartOfLVM',
        N_("Modify RAID")      => 'canModifyRAID',
        N_("Use for loopback") => '!$part->{real_mntpoint} && isMountableRW && !isSpecial && hasMntpoint && $::expert',
    );
    my ($actions_names) = list2kv(@l);
    my $_all_hds = $all_hds; #- help perl_checker know the $all_hds *is* used in the macro below
    my %macros = (
	readonly => '$hd->{readonly}',
        hasMntpoint => '$part->{mntpoint}',
	LVM_resizable => '$part->{fs_type} eq "reiserfs" || (isMounted ? $part->{fs_type} eq "xfs" : $part->{fs_type} eq "ext3")',
	canModifyRAID => 'isPartOfRAID($part) && !isMounted(fs::get::device2part($part->{raid}, $all_hds->{raids}))',
    );
    if (isEmpty($part)) {
	if_(!$hd->{readonly}, N_("Create"));
    } elsif ($part->{pt_type} == 0xbf) {
        #- XBox OS partitions, do not allow anything
        return;    
    } else {
        grep { 
    	    my $cond = $actions{$_};
    	    while (my ($k, $v) = each %macros) {
    	        $cond =~ s/$k/qq(($v))/e;
    	    }
    	    $cond =~ s/(^|[^:\$]) \b ([a-z]\w{3,}) \b ($|[\s&\)])/$1 . $2 . '($part)' . $3/exg;
    	    eval $cond;
        } @$actions_names;
    }
}

#- in case someone use diskdrake only to create partitions, 
#- ie without assigning a mount point,
#- do not suggest mount points anymore
my $do_suggest_mount_point = 1;

sub Create {
    my ($in, $hd, $part, $all_hds) = @_;
    my ($def_start, $def_size, $max) = ($part->{start}, $part->{size}, $part->{start} + $part->{size});

    $part->{maxsize} = $part->{size}; $part->{size} = 0;
    if (fsedit::suggest_part($part, $all_hds)) {
	$part->{mntpoint} = '' if !$do_suggest_mount_point;
    } else {
	$part->{size} = $part->{maxsize};
	fs::type::suggest_fs_type($part, 'ext3');
    }
    if (isLVM($hd)) {
	lvm::suggest_lv_name($hd, $part);
    }

    #- update adjustment for start and size, take into account the minimum partition size
    #- including one less sector for start due to a capacity to increase the adjustement by
    #- one.
    my ($primaryOrExtended, $migrate_files);
    my $type_name = fs::type::part2type_name($part);
    my $mb_size = $part->{size} >> 11;
    my $has_startsector = ($::expert || arch() !~ /i.86/) && !isLVM($hd);

    $in->ask_from(N("Create a new partition"), '',
        [
           if_($has_startsector,
         { label => N("Start sector: "), val => \$part->{start}, min => $def_start, max => ($max - min_partition_size($hd)), type => 'range' },
           ),
         { label => N("Size in MB: "), val => \$mb_size, min => min_partition_size($hd) >> 11, max => $def_size >> 11, type => 'range' },
         { label => N("Filesystem type: "), val => \$type_name, list => [ fs::type::type_names() ], sort => 0 },
         { label => N("Mount point: "), val => \$part->{mntpoint}, list => [ fsedit::suggestions_mntpoint($all_hds), '' ],
           disabled => sub { my $p = fs::type::type_name2subpart($type_name); isSwap($p) || isNonMountable($p) }, type => 'combo', not_edit => 0,
         },
           if_($::expert && $hd->hasExtended,
         { label => N("Preference: "), val => \$primaryOrExtended, list => [ '', "Extended", "Primary", if_($::expert, "Extended_0x85") ] },
           ),
	   if_($::expert && isLVM($hd),
	 { label => N("Logical volume name "), val => \$part->{lv_name}, list => [ qw(root swap usr home var), '' ], sort => 0, not_edit => 0 },
           ),
        ], changed => sub {
	    if ($part->{start} + ($mb_size << 11) > $max) {
		if ($_[0] == 0) {
		    # Start sector changed => restricting Size
		    $mb_size = ($max - $part->{start}) >> 11; 
		} else {
		    # Size changed => restricting Start sector
		    $part->{start} = $max - ($mb_size << 11); 
		}
	    }
        }, complete => sub {
	    $part->{size} = from_Mb($mb_size, min_partition_size($hd), $max - $part->{start}); #- need this to be able to get back the approximation of using MB
	    put_in_hash($part, fs::type::type_name2subpart($type_name));
	    $do_suggest_mount_point = 0 if !$part->{mntpoint};
	    $part->{mntpoint} = '' if isNonMountable($part);
	    $part->{mntpoint} = 'swap' if isSwap($part);
	    fs::mount_options::set_default($part, ignore_is_removable => 1);

	    check($in, $hd, $part, $all_hds) or return 1;
	    $migrate_files = need_migration($in, $part->{mntpoint}) or return 1;
	    
	    my $seen;
	    eval { 
		catch_cdie { fsedit::add($hd, $part, $all_hds, { force => 1, primaryOrExtended => $primaryOrExtended }) }
		  sub { $seen = 1; $in->ask_okcancel('', formatError($@)) };
	    };
	    if (my $err = $@) {
		if ($err =~ /raw_add/ && $hd->hasExtended && !$hd->{primary}{extended}) {
		    $in->ask_warn(N("Error"), N("You can not create a new partition
(since you reached the maximal number of primary partitions).
First remove a primary partition and create an extended partition."));
		    return 0;
		} else {
		    $in->ask_warn(N("Error"), formatError($err)) if !$seen;
		    return 1;
		}
	    }
	    0;
	},
    ) or return;

    warn_if_renumbered($in, $hd);

    if ($migrate_files eq 'migrate') {
	format_($in, $hd, $part, $all_hds) or return;
	migrate_files($in, $hd, $part);
	fs::mount::part($part);
    }
}

sub Delete {
    my ($in, $hd, $part, $all_hds) = @_;
    if (isRAID($part)) {
	raid::delete($all_hds->{raids}, $part);
    } elsif (isLVM($hd)) {
	lvm::lv_delete($hd, $part);
    } elsif (isLoopback($part)) {
	my $f = "$part->{loopback_device}{mntpoint}$part->{loopback_file}";
	if (-e $f && $in->ask_yesorno('', N("Remove the loopback file?"))) {
	    unlink $f;
	}
	my $l = $part->{loopback_device}{loopback};
	@$l = grep { $_ != $part } @$l;
	delete $part->{loopback_device}{loopback} if @$l == 0;
	fsedit::recompute_loopbacks($all_hds);
    } else {
	if (arch() =~ /ppc/) {
	    undef $partition_table::mac::bootstrap_part if isAppleBootstrap($part) && ($part->{device} = $partition_table::mac::bootstrap_part);
	}
	partition_table::remove($hd, $part);
	warn_if_renumbered($in, $hd);
    }
}

sub Type {
    my ($in, $hd, $part) = @_;

    my $warn = sub { ask_alldatawillbelost($in, $part, N_("After changing type of partition %s, all data on this partition will be lost")) };

    #- for ext2, warn after choosing as ext2->ext3 can be achieved without loosing any data :)
    $part->{fs_type} eq 'ext2' or $warn->() or return;

    my @types = fs::type::type_names();

    #- when readonly, Type() is allowed only when changing {fs_type} but not {pt_type}
    #- eg: switching between ext2, ext3, reiserfs...
    @types = grep { fs::type::type_name2pt_type($_) == $part->{pt_type} } @types if $hd->{readonly};

    my $type_name = fs::type::part2type_name($part);
    $in->ask_from_({ title => N("Change partition type"),
		     messages => N("Which filesystem do you want?"),
		     focus_first => 1,
		   },
		  [ { label => N("Type"), val => \$type_name, list => \@types, sort => 0, not_edit => !$::expert } ]) or return;

    my $type = $type_name && fs::type::type_name2subpart($type_name);

    if (member($type->{fs_type}, 'ext2', 'ext3')) {
	my $_w = $in->wait_message('', N("Switching from ext2 to ext3"));
	if (run_program::run("tune2fs", "-j", devices::make($part->{device}))) {
	    put_in_hash($part, $type);
	    set_isFormatted($part, 1); #- assume that if tune2fs works, partition is formatted

	    #- disable the fsck (do not do it together with -j in case -j fails?)
	    fs::format::disable_forced_fsck($part->{device});	    
	    return;
	}
    }
    #- either we switch to non-ext3 or switching losslessly to ext3 failed
    $part->{fs_type} ne 'ext2' or $warn->() or return;

    if (defined $type) {
	check_type($in, $type, $hd, $part) and fsedit::change_type($type, $hd, $part);
    }
}

sub Label {
    my ($in, $hd, $part) = @_;
    $in->ask_from('', N("Which volume label?"),
		  [ { val => \$part->{device_LABEL} } ]) or return;
    $part->{prefer_device_LABEL} = to_bool($part->{device_LABEL});
}

sub Mount_point {
    my ($in, $hd, $part, $all_hds) = @_;

    my $migrate_files;
    my $mntpoint = $part->{mntpoint} || do {
	my $part_ = { %$part };
	if (fsedit::suggest_part($part_, $all_hds)) {
	    fs::get::has_mntpoint('/', $all_hds) || $part_->{mntpoint} eq '/boot' ? $part_->{mntpoint} : '/';
	} else { '' }
    };
    $in->ask_from_({ messages =>
        isLoopback($part) ? N("Where do you want to mount the loopback file %s?", $part->{loopback_file}) :
			    N("Where do you want to mount device %s?", $part->{device}),
		     focus_first => 1,
		     callbacks => {
		         complete => sub {
	    !isPartOfLoopback($part) || $mntpoint or $in->ask_warn('', 
N("Can not unset mount point as this partition is used for loop back.
Remove the loopback first")), return 1;
	    $part->{mntpoint} eq $mntpoint || check_mntpoint($in, $mntpoint, $part, $all_hds) or return 1;
    	    $migrate_files = need_migration($in, $mntpoint) or return 1;
	    0;
	} },
	},
	[ { label => N("Mount point"), val => \$mntpoint, 
	    list => [ uniq(if_($mntpoint, $mntpoint), fsedit::suggestions_mntpoint($all_hds), '') ], 
	    not_edit => 0 } ],
    ) or return;
    $part->{mntpoint} = $mntpoint;

    if ($migrate_files eq 'migrate') {
	format_($in, $hd, $part, $all_hds) or return;
	migrate_files($in, $hd, $part);
	fs::mount::part($part);
    }
}
sub Mount_point_raw_hd {
    my ($in, $part, $all_hds, @propositions) = @_;

    my $mntpoint = $part->{mntpoint} || shift @propositions;
    $in->ask_from(
        '',
        N("Where do you want to mount %s?", $part->{device}),
	[ { label => N("Mount point"), val => \$mntpoint, 
	    list => [ if_($mntpoint, $mntpoint), '', @propositions ], 
	    not_edit => 0 } ],
	complete => sub {
	    $part->{mntpoint} eq $mntpoint || check_mntpoint($in, $mntpoint, $part, $all_hds) or return 1;
	    0;
	}
    ) or return;
    $part->{mntpoint} = $mntpoint;
}

sub Resize {
    my ($in, $hd, $part) = @_;
    my (%nice_resize);
    my ($min, $max) = (min_partition_size($hd), max_partition_size($hd, $part));

    if (maybeFormatted($part)) {
	# here we may have a non-formatted or a formatted partition
	# -> doing as if it was formatted

	if ($part->{fs_type} eq 'vfat') {
	    write_partitions($in, $hd) or return;
	    #- try to resize without losing data
	    my $_w = $in->wait_message(N("Resizing"), N("Computing FAT filesystem bounds"));

	    require resize_fat::main;
	    $nice_resize{fat} = resize_fat::main->new($part->{device}, devices::make($part->{device}));
	    $min = max($min, $nice_resize{fat}->min_size);
	    $max = min($max, $nice_resize{fat}->max_size);	    
	} elsif (member($part->{fs_type}, 'ext2', 'ext3')) {
	    write_partitions($in, $hd) or return;
	    require diskdrake::resize_ext2;
	    if ($nice_resize{ext2} = diskdrake::resize_ext2->new($part->{device}, devices::make($part->{device}))) {
		$min = max($min, $nice_resize{ext2}->min_size);
	    } else {
		delete $nice_resize{ext2};
	    }
	} elsif ($part->{fs_type} eq 'ntfs') {
	    write_partitions($in, $hd) or return;
	    require diskdrake::resize_ntfs;
	    diskdrake::resize_ntfs::check_prog($in) or return;
	    $nice_resize{ntfs} = diskdrake::resize_ntfs->new($part->{device}, devices::make($part->{device}));
	    $min = $nice_resize{ntfs}->min_size or delete $nice_resize{ntfs};
	} elsif ($part->{fs_type} eq 'reiserfs') {
	    write_partitions($in, $hd) or return;
	    if ($part->{isMounted}) {
		$nice_resize{reiserfs} = 1;		  
		$min = $part->{size}; #- ensure the user can only increase
	    } elsif (defined(my $free = fs::df($part))) {
		$nice_resize{reiserfs} = 1;		  
		$min = max($min, $part->{size} - $free);
	    }
	} elsif ($part->{fs_type} eq 'xfs' && isLVM($hd) && $::isStandalone && $part->{isMounted}) {
	    $min = $part->{size}; #- ensure the user can only increase
	    $nice_resize{xfs} = 1;
	}
	#- make sure that even after normalizing the size to cylinder boundaries, the minimun will be saved,
	#- this save at least a cylinder (less than 8Mb).
	$min += partition_table::raw::cylinder_size($hd);
	$min >= $max and return $in->ask_warn('', N("This partition is not resizeable"));

	#- for these, we have tools to resize partition table
	#- without losing data (or at least we hope so :-)
	if (%nice_resize) {
	    ask_alldatamaybelost($in, $part, N_("All data on this partition should be backed-up")) or return;
	} else {
	    ask_alldatawillbelost($in, $part, N_("After resizing partition %s, all data on this partition will be lost")) or return;
	}
    }

    my $mb_size = $part->{size} >> 11;
    $in->ask_from(N("Resize"), N("Choose the new size"), [ 
		   { label => N("New size in MB: "), val => \$mb_size, min => $min >> 11, max => $max >> 11, type => 'range' },
		]) or return;


    my $size = from_Mb($mb_size, $min, $max);
    $part->{size} == $size and return;

    my $oldsize = $part->{size};
    $part->{size} = $size;
    $hd->adjustEnd($part);

    undef $@;
    my $_b = before_leaving { $@ and $part->{size} = $oldsize };

    my $adjust = sub {
	my ($write_partitions) = @_;

	if (isLVM($hd)) {
	    lvm::lv_resize($part, $oldsize);
	} else {
	    partition_table::will_tell_kernel($hd, resize => $part);
	    partition_table::adjust_local_extended($hd, $part);
	    partition_table::adjust_main_extended($hd);
	    write_partitions($in, $hd) or return if $write_partitions && %nice_resize;
	}
	1;
    };

    $adjust->(1) or return if $size > $oldsize;

    my $wait = $in->wait_message(N("Resizing"), '');

    if ($nice_resize{fat}) {
	local *log::l = sub { $wait->set(join(' ', @_)) };
	$nice_resize{fat}->resize($part->{size});
    } elsif ($nice_resize{ext2}) {
	$nice_resize{ext2}->resize($part->{size});
    } elsif ($nice_resize{ntfs}) {
	log::l("ntfs resize to $part->{size} sectors");
	$nice_resize{ntfs}->resize($part->{size});
	$wait = undef;
	$in->ask_warn('', N("To ensure data integrity after resizing the partition(s), 
filesystem checks will be run on your next boot into Windows(TM)"));
    } elsif ($nice_resize{reiserfs}) {
	log::l("reiser resize to $part->{size} sectors");
	run_program::run('resize_reiserfs', '-f', '-q', '-s' . int($part->{size}/2) . 'K', devices::make($part->{device}));
    } elsif ($nice_resize{xfs}) {
	#- happens only with mounted LVM, see above
	run_program::run("xfs_growfs", $part->{mntpoint});
    }

    if (%nice_resize) {
	set_isFormatted($part, 1);
    } else {
	set_isFormatted($part, 0);
	partition_table::verifyParts($hd) if !isLVM($hd);
	$part->{mntpoint} = '' if isNonMountable($part); #- mainly for ntfs, which we can not format
    }

    $adjust->(0) if $size < $oldsize;
}
sub Format {
    my ($in, $hd, $part, $all_hds) = @_;
    format_($in, $hd, $part, $all_hds);
}
sub Mount {
    my ($in, $hd, $part) = @_;

    ensure_we_have_encrypt_key_if_needed($in, $part) or return;
    write_partitions($in, $hd) or return;

    my $w;
    fs::mount::part($part, 0, sub {
        	my ($msg) = @_;
        	$w ||= $in->wait_message('', $msg);
        	$w->set($msg);
    });
}
sub Add2RAID {
    my ($in, $_hd, $part, $all_hds) = @_;
    my $raids = $all_hds->{raids};

    my $md_part = $in->ask_from_listf('', N("Choose an existing RAID to add to"),
				      sub { ref($_[0]) ? $_[0]{device} : $_[0] },
				      [ @$raids, N_("new") ]) or return;

    if (ref($md_part)) {
	raid::add($md_part, $part);
    } else {
	raid::check_prog($in) or return;
	my $md_part = raid::new($raids, disks => [ $part ]);
	modifyRAID($in, $raids, $md_part) or return raid::delete($raids, $md_part);
    }
}
sub Add2LVM {
    my ($in, $hd, $part, $all_hds) = @_;
    my $lvms = $all_hds->{lvms};
    write_partitions($in, $_) or return foreach isRAID($part) ? @{$all_hds->{hds}} : $hd;

    my $lvm = $in->ask_from_listf_('', N("Choose an existing LVM to add to"),
				  sub { ref($_[0]) ? $_[0]{VG_name} : $_[0] },
				  [ @$lvms, N_("new") ]) or return;
    require lvm;
    if (!ref $lvm) {
	# create new lvm
	my $name = $in->ask_from_entry('', N("LVM name?")) or return;
	$lvm = new lvm($name);
	push @$lvms, $lvm;
    }
    raid::make($all_hds->{raids}, $part) if isRAID($part);
    $part->{lvm} = $lvm->{VG_name};
    push @{$lvm->{disks}}, $part;
    delete $part->{mntpoint};

    lvm::check($in) if $::isStandalone;
    lvm::vg_add($part);
    lvm::update_size($lvm);
}
sub Unmount {
    my ($_in, $_hd, $part) = @_;
    fs::mount::umount_part($part);
}
sub RemoveFromRAID { 
    my ($_in, $_hd, $part, $all_hds) = @_;
    raid::removeDisk($all_hds->{raids}, $part);
}
sub RemoveFromLVM {
    my ($in, $_hd, $part, $all_hds) = @_;
    isPartOfLVM($part) or die;
    my ($lvm, $other_lvms) = partition { $_->{VG_name} eq $part->{lvm} } @{$all_hds->{lvms}};
    if (@{$lvm->[0]{disks}} > 1) {
	my ($used, $_total) = lvm::pv_physical_extents($part);
	if ($used) {
	    $in->ask_yesorno('', N("Physical volume %s is still in use.
Do you want to move used physical extents on this volume to other volumes?", $part->{device})) or return;
	    my $_w = $in->wait_message('', N("Moving physical extents"));
	    lvm::pv_move($part);
	}
	lvm::vg_reduce($lvm->[0], $part);
    } else {
	lvm::vg_destroy($lvm->[0]);
	$all_hds->{lvms} = $other_lvms;
    }
}
sub ModifyRAID { 
    my ($in, $_hd, $part, $all_hds) = @_;
    modifyRAID($in, $all_hds->{raids}, fs::get::device2part($part->{raid}, $all_hds->{raids}));
}
sub Loopback {
    my ($in, $hd, $real_part, $all_hds) = @_;

    write_partitions($in, $hd) or return;

    my $handle = any::inspect($real_part) or $in->ask_warn('', N("This partition can not be used for loopback")), return;

    my ($min, $max) = (1, fs::loopback::getFree($handle->{dir}, $real_part));
    $max = min($max, 1 << (31 - 9)) if $real_part->{fs_type} eq 'vfat'; #- FAT does not handle file size bigger than 2GB
    my $part = { maxsize => $max, size => 0, loopback_device => $real_part, notFormatted => 1 };
    if (!fsedit::suggest_part($part, $all_hds)) {
	$part->{size} = $part->{maxsize};
	fs::type::suggest_fs_type($part, 'ext3');
    }
    delete $part->{mntpoint}; # we do not want the suggested mntpoint

    my $type_name = fs::type::part2type_name($part);
    my $mb_size = $part->{size} >> 11;
    $in->ask_from(N("Loopback"), '', [
		  { label => N("Loopback file name: "), val => \$part->{loopback_file} },
		  { label => N("Size in MB: "), val => \$mb_size, min => $min >> 11, max => $max >> 11, type => 'range' },
		  { label => N("Filesystem type: "), val => \$type_name, list => [ fs::type::type_names() ], not_edit => !$::expert, sort => 0 },
             ],
	     complete => sub {
		 $part->{loopback_file} or $in->ask_warn('', N("Give a file name")), return 1, 0;
		 $part->{loopback_file} =~ s|^([^/])|/$1|;
		 if (my $size = fs::loopback::verifFile($handle->{dir}, $part->{loopback_file}, $real_part)) {
		     $size == -1 and $in->ask_warn('', N("File is already used by another loopback, choose another one")), return 1, 0;
		     $in->ask_yesorno('', N("File already exists. Use it?")) or return 1, 0;
		     delete $part->{notFormatted};
		     $part->{size} = divide($size, 512);
		 } else {
		     $part->{size} = from_Mb($mb_size, $min, $max);
		 }
		 0;
	     }) or return;
    put_in_hash($part, fs::type::type_name2subpart($type_name));
    push @{$real_part->{loopback}}, $part;
    fsedit::recompute_loopbacks($all_hds);
}

sub Options {
    my ($in, $hd, $part, $all_hds) = @_;

    my @simple_options = qw(users noauto supermount username= password=);

    my (undef, $user_implies) = fs::mount_options::list();
    my ($options, $unknown) = fs::mount_options::unpack($part);
    my %help = fs::mount_options::help();

    my %prev_options = %$options;
    $in->ask_from(N("Mount options"),
		  '',
		  [ 
		   (map { 
			 { label => $_, text => scalar warp_text(formatAlaTeX($help{$_})), val => \$options->{$_}, hidden => scalar(/password/),
			   advanced => !$part->{rootDevice} && !member($_, @simple_options), if_(!/=$/, type => 'bool') };
		     } keys %$options),
		    { label => N("Various"), val => \$unknown, advanced => 1 },
		  ],
		  changed => sub {
		      if (my $user = find { $prev_options{$_} != $options->{$_} } 'users', 'user') {
			  $options->{$user eq 'user' ? 'users' : 'user'} = 0 if $options->{$user}; # we don't want both user and users
			  $options->{$_} = $options->{$user} foreach @$user_implies;
			  %prev_options = %$options;
		      }
		      if ($options->{encrypted}) {
			  # modify $part->{options} for the check
			  local $part->{options};
			  fs::mount_options::pack($part, $options, $unknown);
			  if (!check($in, $hd, $part, $all_hds)) {
			      $options->{encrypted} = 0;
			  } elsif (!$part->{encrypt_key} && !isSwap($part)) {
			      if (my ($encrypt_key, $encrypt_algo) = choose_encrypt_key($in, $options, '')) {
				  $options->{'encryption='} = $encrypt_algo;
				  $part->{encrypt_key} = $encrypt_key;
			      } else {
				  $options->{encrypted} = 0;
			      }
			  }
			  #- don't be sure of anything
			  set_isFormatted($part, 0);
			  $part->{notFormatted} = 0;
		      } else {
			  delete $options->{'encryption='};
			  delete $part->{encrypt_key};
		      }
		  },
		 ) or return;

    fs::mount_options::pack($part, $options, $unknown);
    1;
}


{ 
    no strict; 
    *{'Toggle to normal mode'} = sub() { $::expert = 0 };
    *{'Toggle to expert mode'} = sub() { $::expert = 1 };
    *{'Clear all'} = \&Clear_all;
    *{'Auto allocate'} = \&Auto_allocate;
    *{'Mount point'} = \&Mount_point;
    *{'Modify RAID'} = \&ModifyRAID;
    *{'Add to RAID'} = \&Add2RAID;
    *{'Remove from RAID'} = \&RemoveFromRAID; 
    *{'Add to LVM'} = \&Add2LVM;
    *{'Remove from LVM'} = \&RemoveFromLVM; 
    *{'Use for loopback'} = \&Loopback;
    *{'Hard drive information'} = \&Hd_info;
}


################################################################################
# helpers
################################################################################

sub is_part_existing {
    my ($part, $all_hds) = @_;
    $part && any { fsedit::are_same_partitions($part, $_) } fs::get::fstab_and_holes($all_hds);
}

sub modifyRAID {
    my ($in, $raids, $md_part) = @_;
    my $new_device = $md_part->{device};
    $in->ask_from('', '',
		  [
{ label => N("device"), val => \$new_device, list => [ $md_part->{device}, raid::free_mds($raids) ], sort => 0 },
{ label => N("level"), val => \$md_part->{level}, list => [ qw(0 1 4 5 linear) ] },
{ label => N("chunk size in KiB"), val => \$md_part->{'chunk-size'} },
		  ],
		 ) or return;
    raid::change_device($md_part, $new_device);
    raid::updateSize($md_part); # changing the raid level changes the size available
    1;
}


sub ask_alldatamaybelost {
    my ($in, $part, $msg) = @_;

    maybeFormatted($part) or return 1;

    #- here we may have a non-formatted or a formatted partition
    #- -> doing as if it was formatted
    $in->ask_okcancel(N("Read carefully!"), 
		      [ N("Be careful: this operation is dangerous."), sprintf(translate($msg), $part->{device}) ], 1);
}
sub ask_alldatawillbelost {
    my ($in, $part, $msg) = @_;

    maybeFormatted($part) or return 1;

    #- here we may have a non-formatted or a formatted partition
    #- -> doing as if it was formatted
    $in->ask_okcancel(N("Read carefully!"), sprintf(translate($msg), $part->{device}), 1);
}

sub partitions_suggestions {
    my ($in) = @_;
    my $t = $::expert ? 
      $in->ask_from_list_('', N("What type of partitioning?"), [ keys %fsedit::suggestions ]) :
      'simple';
    $fsedit::suggestions{$t};
}

sub check_type {
    my ($in, $type, $hd, $part) = @_;
    eval { fs::type::check($type->{fs_type}, $hd, $part) };
    if (my $err = $@) {
	$in->ask_warn('', formatError($err));
	return;
    }
    if ($::isStandalone && $type->{fs_type}) {
	fs::format::check_package_is_installed($in->do_pkgs, $type->{fs_type}) or return;
    }
    1;
}
sub check_mntpoint {
    my ($in, $mntpoint, $part, $all_hds) = @_;
    my $seen;
    eval { 
	catch_cdie { fsedit::check_mntpoint($mntpoint, $part, $all_hds) }
	  sub { $seen = 1; $in->ask_okcancel('', formatError($@)) };
    };
    if (my $err = $@) {
	$in->ask_warn('', formatError($err)) if !$seen;
	return;
    }
    1;
}
sub check {
    my ($in, $hd, $part, $all_hds) = @_;
    check_type($in, $part, $hd, $part) &&
      check_mntpoint($in, $part->{mntpoint}, $part, $all_hds);
}

sub check_rebootNeeded {
    my ($_in, $hd) = @_;
    $hd->{rebootNeeded} and die N("You'll need to reboot before the modification can take place");
}

sub write_partitions {
    my ($in, $hd, $b_skip_check_rebootNeeded) = @_;
    check_rebootNeeded($in, $hd) if !$b_skip_check_rebootNeeded;
    $hd->{isDirty} or return 1;
    isLVM($hd) and return 1;

    $in->ask_okcancel(N("Read carefully!"), N("Partition table of drive %s is going to be written to disk!", $hd->{device}), 1) or return;
    partition_table::write($hd) if !$::testing;
    check_rebootNeeded($in, $hd) if !$b_skip_check_rebootNeeded;
    1;
}

sub ensure_we_have_encrypt_key_if_needed {
    my ($in, $part) = @_;

    if ($part->{options} =~ /encrypted/ && !$part->{encrypt_key}) {
	my ($options, $unknown) = fs::mount_options::unpack($part);
	$part->{encrypt_key} = choose_encrypt_key($in, $options, 'skip_encrypt_algo') or return;
	fs::mount_options::pack($part, $options, $unknown);
    }
    1;
}

sub format_ {
    my ($in, $hd, $part, $all_hds) = @_;

    ensure_we_have_encrypt_key_if_needed($in, $part) or return;
    write_partitions($in, $_) or return foreach isRAID($part) ? @{$all_hds->{hds}} : $hd;

    ask_alldatawillbelost($in, $part, N_("After formatting partition %s, all data on this partition will be lost")) or return;
    if ($::isStandalone) {
	fs::format::check_package_is_installed($in->do_pkgs, $part->{fs_type}) or return;
    }
    $part->{isFormatted} = 0; #- force format;
    my ($_w, $wait_message) = $in->wait_message_with_progress_bar;
    fs::format::part($all_hds, $part, $wait_message);
    1;
}

sub need_migration {
    my ($in, $mntpoint) = @_;

    my @l = grep { $_ ne "lost+found" } all($mntpoint);
    if (@l && $::isStandalone) {
	my $choice;
	my @choices = (N_("Move files to the new partition"), N_("Hide files"));
	$in->ask_from('', N("Directory %s already contains data\n(%s)", $mntpoint, formatList(5, @l)), 
		      [ { val => \$choice, list => \@choices, type => 'list' } ]) or return;
	$choice eq $choices[0] ? 'migrate' : 'hide';
    } else {
	'hide';
    }    
}

sub migrate_files {
    my ($in, $_hd, $part) = @_;

    my $wait = $in->wait_message('', N("Moving files to the new partition"));
    my $handle = any::inspect($part, '', 'rw');
    my @l = glob_("$part->{mntpoint}/*");
    foreach (@l) {
	$wait->set(N("Copying %s", $_)); 
	system("cp", "-a", $_, $handle->{dir}) == 0 or die "copying failed";
    }
    foreach (@l) {
	$wait->set(N("Removing %s", $_)); 
	system("rm", "-rf", $_) == 0 or die "removing files failed";
    }
}

sub warn_if_renumbered {
    my ($in, $hd) = @_;
    my $l = delete $hd->{partitionsRenumbered};
    return if is_empty_array_ref($l);

    push @{$hd->{allPartitionsRenumbered}}, @$l;

    my @l = map { 
	my ($old, $new) = @$_;
	N("partition %s is now known as %s", $old, $new) } @$l;
    $in->ask_warn('', join("\n", N("Partitions have been renumbered: "), @l));
}

#- unit of $mb is mega bytes, min and max are in sectors, this
#- function is used to convert back to sectors count the size of
#- a partition ($mb) given from the interface (on Resize or Create).
#- modified to take into account a true bounding with min and max.
sub from_Mb {
    my ($mb, $min, $max) = @_;
    $mb <= $min >> 11 and return $min;
    $mb >= $max >> 11 and return $max;
    $mb * 2048;
}

sub format_part_info {
    my ($hd, $part) = @_;

    my $info = '';

    $info .= N("Mount point: ") . "$part->{mntpoint}\n" if $part->{mntpoint};
    $info .= N("Device: ") . "$part->{device}\n" if $part->{device} && !isLoopback($part);
    $info .= N("Devfs name: ") . "$part->{devfs_device}\n" if $part->{devfs_device} && $::expert;
    $info .= N("Volume label: ") . "$part->{device_LABEL}\n" if $part->{device_LABEL} && $::expert;
    $info .= N("DOS drive letter: %s (just a guess)\n", $part->{device_windobe}) if $part->{device_windobe};
    if (arch() eq "ppc") {
	my $pType = $part->{pType};
	$pType =~ s/[^A-Za-z0-9_]//g;
	$info .= N("Type: ") . $pType . ($::expert ? sprintf " (0x%x)", $part->{pt_type} : '') . "\n";
	if (defined $part->{pName}) {
	    my $pName = $part->{pName};
	    $pName =~ s/[^A-Za-z0-9_]//g;
	    $info .= N("Name: ") . $pName . "\n";
	}
    } elsif (isEmpty($part)) {
	$info .= N("Empty") . "\n";
    } else {
	$info .= N("Type: ") . (fs::type::part2type_name($part) || $part->{fs_type}) . ($::expert ? sprintf " (0x%x)", $part->{pt_type} : '') . "\n";
    }
    $info .= N("Start: sector %s\n", $part->{start}) if $::expert && !isSpecial($part) && !isLVM($hd);
    $info .= N("Size: %s", formatXiB($part->{size}, 512));
    $info .= sprintf " (%s%%)", int 100 * $part->{size} / $hd->{totalsectors} if $hd->{totalsectors};
    $info .= N(", %s sectors", $part->{size}) if $::expert;
    $info .= "\n";
    $info .= N("Cylinder %d to %d\n", $part->{start} / $hd->cylinder_size, ($part->{start} + $part->{size} - 1) / $hd->cylinder_size) if ($::expert || isEmpty($part)) && !isSpecial($part) && !isLVM($hd);
    $info .= N("Number of logical extents: %d\n", $part->{size} / $hd->cylinder_size) if $::expert && isLVM($hd);
    $info .= N("Formatted\n") if $part->{isFormatted};
    $info .= N("Not formatted\n") if !$part->{isFormatted} && $part->{notFormatted};
    $info .= N("Mounted\n") if $part->{isMounted};
    $info .= N("RAID %s\n", $part->{raid}) if isPartOfRAID($part);
    if (isPartOfLVM($part)) {
	$info .= sprintf "LVM %s\n", $part->{lvm};
	$info .= sprintf "Used physical extents %d / %d\n", lvm::pv_physical_extents($part);
    }
    $info .= N("Loopback file(s):\n   %s\n", join(", ", map { $_->{loopback_file} } @{$part->{loopback}})) if isPartOfLoopback($part);
    $info .= N("Partition booted by default\n    (for MS-DOS boot, not for lilo)\n") if $part->{active} && $::expert;
    if (isRAID($part)) {
	$info .= N("Level %s\n", $part->{level});
	$info .= N("Chunk size %d KiB\n", $part->{'chunk-size'});
	$info .= N("RAID-disks %s\n", join ", ", map { $_->{device} } @{$part->{disks}});
    } elsif (isLoopback($part)) {
	$info .= N("Loopback file name: %s", $part->{loopback_file});
    }
    if (isApple($part)) {
	$info .= N("\nChances are, this partition is\na Driver partition. You should\nprobably leave it alone.\n");
    }
    if (isAppleBootstrap($part)) {
	$info .= N("\nThis special Bootstrap\npartition is for\ndual-booting your system.\n");
    }
    # restrict the length of the lines
    $info =~ s/(.{60}).*/$1.../mg;
    $info;
}

sub format_part_info_short { 
    my ($hd, $part) = @_;
    isEmpty($part) ? format_part_info($hd, $part) : partition_table::description($part);
}

sub format_hd_info {
    my ($hd) = @_;

    my $info = '';
    $info .= N("Device: ") . "$hd->{device}\n";
    $info .= N("Read-only") . "\n" if $hd->{readonly};
    $info .= N("Size: %s\n", formatXiB($hd->{totalsectors}, 512)) if $hd->{totalsectors};
    $info .= N("Geometry: %s cylinders, %s heads, %s sectors\n", $hd->{geom}{cylinders}, $hd->{geom}{heads}, $hd->{geom}{sectors}) if $::expert && $hd->{geom};
    $info .= N("Info: ") . ($hd->{info} || $hd->{media_type}) . "\n" if $::expert && ($hd->{info} || $hd->{media_type});
    $info .= N("LVM-disks %s\n", join ", ", map { $_->{device} } @{$hd->{disks}}) if isLVM($hd) && $hd->{disks};
    $info .= N("Partition table type: %s\n", $1) if $::expert && ref($hd) =~ /_([^_]+)$/;
    $info .= N("on channel %d id %d\n", $hd->{channel}, $hd->{id}) if $::expert && exists $hd->{channel};
    $info;
}

sub format_raw_hd_info {
    my ($raw_hd) = @_;

    my $info = '';
    $info .= N("Mount point: ") . "$raw_hd->{mntpoint}\n" if $raw_hd->{mntpoint};
    $info .= format_hd_info($raw_hd);
    if (!isEmpty($raw_hd)) {
	$info .= N("Type: ") . (fs::type::part2type_name($raw_hd) || $raw_hd->{fs_type}) . "\n";
    }
    if (my $s = $raw_hd->{options}) {
	$s =~ s/password=([^\s,]*)/'password=' . ('x' x length($1))/e;
	$info .= N("Options: %s", $s);
    }
    $info;
}

#- get the minimal size of partition in sectors to help diskdrake on
#- limit cases, include a cylinder + start of a eventually following
#- logical partition.
sub min_partition_size { $_[0]->cylinder_size + 2*$_[0]{geom}{sectors} }

sub max_partition_size {
    my ($hd, $part) = @_;
    if (isLVM($hd)) {
	$part->{size} + fs::get::vg_free_space($hd);
    } else {
	partition_table::next_start($hd, $part) - $part->{start};
    }
}

sub choose_encrypt_key {
    my ($in, $options, $skip_encrypt_algo) = @_;

    my ($encrypt_key, $encrypt_key2);
    my @algorithms = map { "AES$_" } 128, 196, 256, 512, 1024, 2048;
    my $encrypt_algo = $options->{'encryption='} || "AES128";

    $in->ask_from_(
		       {
         title => N("Filesystem encryption key"), 
	 messages => N("Choose your filesystem encryption key"),
	 callbacks => { 
	     complete => sub {
		 length $encrypt_key < 6 and $in->ask_warn('', N("This encryption key is too simple (must be at least %d characters long)", 6)), return 1,0;
		 $encrypt_key eq $encrypt_key2 or $in->ask_warn('', [ N("The encryption keys do not match"), N("Please try again") ]), return 1,1;
		 return 0;
        } } }, [
{ label => N("Encryption key"), val => \$encrypt_key,  hidden => 1 },
{ label => N("Encryption key (again)"), val => \$encrypt_key2, hidden => 1 },
if_(!$skip_encrypt_algo,
{ label => N("Encryption algorithm"), type => 'list', val => \$encrypt_algo, list => \@algorithms },
),
    ]) or return;

    $skip_encrypt_algo ? $encrypt_key : ($encrypt_key, $encrypt_algo);
}


sub tell_wm_and_reboot() {
    my ($wm, $pid) = any::running_window_manager();

    if (!$wm) {
	system('reboot');
    } else {    
	any::ask_window_manager_to_logout_then_do($wm, $pid, 'reboot');
    }
}

sub update_bootloader_for_renumbered_partitions {
    my ($in, $all_hds) = @_;
    my @renumbering = map { @{$_->{allPartitionsRenumbered} || []} } @{$all_hds->{hds}} or return;

    require bootloader;
    bootloader::update_for_renumbered_partitions($in, \@renumbering, $all_hds);
}

sub undo_prepare {
    my ($all_hds) = @_;
    require Data::Dumper;
    $Data::Dumper::Purity = 1;
    foreach (@{$all_hds->{hds}}) {
	my @h = @$_{@partition_table::fields2save};
	push @{$_->{undo}}, Data::Dumper->Dump([\@h], ['$h']);
    }
}
sub undo {
    my ($all_hds) = @_;
    foreach (@{$all_hds->{hds}}) {
	my $code = pop @{$_->{undo}} or next;
	my $h; eval $code;
	@$_{@partition_table::fields2save} = @$h;

	if ($_->{hasBeenDirty}) {
	    partition_table::will_tell_kernel($_, 'force_reboot'); #- next action needing write_partitions will force it. We can not do it now since more undo may occur, and we must not needReboot now
	}
    }
    
}