drakx - Mageia Installer and base platform for many utilities

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author	Thierry Vignaud <thierry.vignaud@gmail.com>	2016-06-24 15:44:16 +0200
committer	Thierry Vignaud <thierry.vignaud@gmail.com>	2016-06-24 15:46:42 +0200
commit	302a992cc5fed524f62416d74308ec400343884a (patch)
tree	bcbebe2ffc8e6369d592788a98d07d5063d34f8a /perl-install/bootloader.pm
parent	4f8bd54ef3c34a5bb33a9d5973c0393a652ce882 (diff)
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(write_grub2_default_entry) split it

needed for next commit

Diffstat (limited to 'perl-install/bootloader.pm')

-rw-r--r--

perl-install/bootloader.pm

1 files changed, 17 insertions, 10 deletions

package fs; # $Id$ use diagnostics; use strict; use common; use log; use devices; use fs::type; use fs::get; use fs::format; use fs::mount_options; use fs::loopback; use fs::mount; use run_program; use detect_devices; use modules; use fsedit; sub read_fstab { my ($prefix, $file, @reading_options) = @_; if (member('keep_default', @reading_options)) { push @reading_options, 'freq_passno', 'keep_device_LABEL', 'keep_device_UUID'; } my %comments; my $comment; my @l = grep { if (/^Filename\s*Type\s*Size/) { 0; #- when reading /proc/swaps } elsif (/^\s*#/) { $comment .= chomp_($_) . "\n"; 0; } else { $comments{$_} = $comment if $comment; $comment = ''; 1; } } cat_("$prefix$file"); #- attach comments at the end of fstab to the previous line $comments{$l[-1]} = $comment if $comment; map { my ($dev, $mntpoint, $fs_type, $options, $freq, $passno) = split; my $comment = $comments{$_}; $options = 'defaults' if $options eq 'rw'; # clean-up for mtab read if ($fs_type eq 'supermount') { log::l("dropping supermount"); $options = join(",", grep { if (/fs=(.*)/) { $fs_type = $1; #- with supermount, the type could be something like ext2:vfat #- but this can not be done without supermount, so switching to "auto" $fs_type = 'auto' if $fs_type =~ /:/; 0; } elsif (/dev=(.*)/) { $dev = $1; 0; } elsif ($_ eq '--') { 0; } else { 1; } } split(',', $options)); } elsif ($fs_type eq 'smb') { # prefering type "smbfs" over "smb" $fs_type = 'smbfs'; } s/\\040/ /g foreach $mntpoint, $dev, $options; my $h = { mntpoint => $mntpoint, fs_type => $fs_type, options => $options, comment => $comment, if_(member('keep_freq_passno', @reading_options), freq => $freq, passno => $passno), }; put_in_hash($h, fs::wild_device::to_subpart($dev)); if ($h->{device_LABEL} && !$h->{device_alias} && member('keep_device_LABEL', @reading_options)) { $h->{prefer_device_LABEL} = 1; } elsif ($h->{device_UUID} && !$h->{device_alias} && member('keep_device_UUID', @reading_options)) { $h->{prefer_device_UUID} = 1; } else { $h->{prefer_device} = 1; } if ($h->{options} =~ /credentials=/ && !member('verbatim_credentials', @reading_options)) { require fs::remote::smb; #- remove credentials=file with username=foo,password=bar,domain=zoo #- the other way is done in fstab_to_string my ($options, $unknown) = fs::mount_options::unpack($h); my $file = delete $options->{'credentials='}; my $credentials = fs::remote::smb::read_credentials_raw($file); if ($credentials->{username}) { $options->{"$_="} = $credentials->{$_} foreach qw(username password domain); fs::mount_options::pack($h, $options, $unknown); } } $h; } @l; } sub merge_fstabs { my ($loose, $fstab, @l) = @_; foreach my $p (@$fstab) { my ($l1, $l2) = partition { fs::get::is_same_hd($_, $p) } @l; my ($p2) = @$l1 or next; @l = @$l2; $p->{mntpoint} = $p2->{mntpoint} if delete $p->{unsafeMntpoint}; if (!$loose) { $p->{fs_type} = $p2->{fs_type} if $p2->{fs_type}; $p->{options} = $p2->{options} if $p2->{options}; add2hash($p, $p2); } else { $p->{isMounted} ||= $p2->{isMounted}; $p->{real_mntpoint} ||= $p2->{real_mntpoint}; } $p->{device_alias} ||= $p2->{device_alias} if $p->{device} ne $p2->{device} && $p2->{device} !~ m|/|; $p->{fs_type} && $p2->{fs_type} && $p->{fs_type} ne $p2->{fs_type} && $p->{fs_type} ne 'auto' && $p2->{fs_type} ne 'auto' and log::l("err, fstab and partition table do not agree for $p->{device} type: $p->{fs_type} vs $p2->{fs_type}"); } @l; } sub add2all_hds { my ($all_hds, @l) = @_; @l = merge_fstabs('', [ fs::get::really_all_fstab($all_hds) ], @l); foreach (@l) { my $s = $_->{fs_type} eq 'nfs' ? 'nfss' : $_->{fs_type} eq 'smbfs' ? 'smbs' : $_->{fs_type} eq 'davfs2' ? 'davs' : isTrueLocalFS($_) || isSwap($_) || isOtherAvailableFS($_) ? '' : 'special'; push @{$all_hds->{$s}}, $_ if $s; } } sub get_major_minor { my ($fstab) = @_; foreach (@$fstab) { eval { my (undef, $major, $minor) = devices::entry($_->{device}); ($_->{major}, $_->{minor}) = ($major, $minor); } if !$_->{major}; } } sub merge_info_from_mtab { my ($fstab) = @_; my @l1 = map { my $l = $_; my $h = fs::type::fs_type2subpart('swap'); $h->{$_} = $l->{$_} foreach qw(device major minor); $h; } read_fstab('', '/proc/swaps'); my @l2 = map { read_fstab('', $_) } '/etc/mtab', '/proc/mounts'; foreach (@l1, @l2) { log::l("found mounted partition on $_->{device} with $_->{mntpoint}"); if ($::isInstall && $_->{mntpoint} =~ m!^/tmp/\w*image$!) { $_->{real_mntpoint} = delete $_->{mntpoint}; } $_->{isMounted} = 1; set_isFormatted($_, 1); } merge_fstabs('loose', $fstab, @l1, @l2); } # - when using "$loose", it does not merge in type&options from the fstab sub merge_info_from_fstab { my ($fstab, $prefix, $uniq, $loose) = @_; my @l = grep { if ($uniq) { my $part = fs::get::mntpoint2part($_->{mntpoint}, $fstab); !$part || fs::get::is_same_hd($part, $_); #- keep it only if it is the mountpoint AND the same device } else { 1; } } read_fstab($prefix, '/etc/fstab', 'keep_default'); merge_fstabs($loose, $fstab, @l); } sub get_info_from_fstab { my ($all_hds) = @_; my @l = read_fstab($::prefix, '/etc/fstab', 'keep_default'); add2all_hds($all_hds, @l); } sub prepare_write_fstab { my ($fstab, $o_prefix, $b_keep_smb_credentials) = @_; $o_prefix ||= ''; my %new; my @smb_credentials; my @l = map { my $device = isLoopback($_) ? ($_->{mntpoint} eq '/' ? "/initrd/loopfs" : $_->{loopback_device}{mntpoint}) . $_->{loopback_file} : fs::wild_device::from_part($o_prefix, $_); my $comment = $_->{comment}; $comment = '' if $comment =~ m!^Entry for /dev/.* :!; $comment ||= "# Entry for /dev/$_->{device} :\n" if $device =~ /^(UUID|LABEL)=/; my $real_mntpoint = $_->{mntpoint} || ${{ '/tmp/hdimage' => '/mnt/hd' }}{$_->{real_mntpoint}}; mkdir_p("$o_prefix$real_mntpoint") if $real_mntpoint =~ m|^/|; my $mntpoint = fs::type::carry_root_loopback($_) ? '/initrd/loopfs' : $real_mntpoint; my ($freq, $passno) = exists $_->{freq} ? ($_->{freq}, $_->{passno}) : isTrueLocalFS($_) && $_->{options} !~ /encryption=/ && (!$_->{is_removable} || member($_->{mntpoint}, fs::type::directories_needed_to_boot())) ? (1, $_->{mntpoint} eq '/' ? 1 : fs::type::carry_root_loopback($_) ? 0 : 2) : (0, 0); if (($device eq 'none' || !$new{$device}) && ($mntpoint eq 'swap' || !$new{$mntpoint})) { #- keep in mind the new line for fstab. $new{$device} = 1; $new{$mntpoint} = 1; my $options = $_->{options} || 'defaults'; if ($_->{fs_type} eq 'smbfs' && $options =~ /password=/ && !$b_keep_smb_credentials) { require fs::remote::smb; if (my ($opts, $smb_credentials) = fs::remote::smb::fstab_entry_to_credentials($_)) { $options = $opts; push @smb_credentials, $smb_credentials; } } my $fs_type = $_->{fs_type} || 'auto'; s/ /\\040/g foreach $mntpoint, $device, $options; my $file_dep = $options =~ /\b(loop|bind)\b/ ? $device : ''; [ $file_dep, $mntpoint, $comment . join(' ', $device, $mntpoint, $fs_type, $options, $freq, $passno) . "\n" ]; } else { (); } } grep { $_->{device} && ($_->{mntpoint} || $_->{real_mntpoint}) && $_->{fs_type} && ($_->{isFormatted} || !$_->{notFormatted}) } @$fstab; sub sort_it { my (@l) = @_; if (my $file_based = find { $_->[0] } @l) { my ($before, $other) = partition { $file_based->[0] =~ /^\Q$_->[1]/ } @l; $file_based->[0] = ''; #- all dependencies are now in before if (@$other && @$before) { sort_it(@$before), sort_it(@$other); } else { sort_it(@l); } } else { sort { $a->[1] cmp $b->[1] } @l; } } @l = sort_it(@l); join('', map { $_->[2] } @l), \@smb_credentials; } sub fstab_to_string { my ($all_hds, $o_prefix) = @_; my $fstab = [ fs::get::really_all_fstab($all_hds), @{$all_hds->{special}} ]; my ($s, undef) = prepare_write_fstab($fstab, $o_prefix, 'keep_smb_credentials'); $s; } sub write_fstab { my ($all_hds, $o_prefix) = @_; log::l("writing $o_prefix/etc/fstab"); my $fstab = [ fs::get::really_all_fstab($all_hds), @{$all_hds->{special}} ]; my ($s, $smb_credentials) = prepare_write_fstab($fstab, $o_prefix, ''); output("$o_prefix/etc/fstab", $s); fs::remote::smb::save_credentials($_) foreach @$smb_credentials; } sub set_removable_mntpoints { my ($all_hds) = @_; my %names; foreach (@{$all_hds->{raw_hds}}) { my $name = detect_devices::suggest_mount_point($_) or next; $name eq 'zip' and next; my $s = ++$names{$name}; $_->{mntpoint} ||= "/media/$name" . ($s == 1 ? '' : $s); } } sub get_raw_hds { my ($prefix, $all_hds) = @_; push @{$all_hds->{raw_hds}}, detect_devices::removables(); $_->{is_removable} = 1 foreach @{$all_hds->{raw_hds}}; get_major_minor($all_hds->{raw_hds}); my @fstab = read_fstab($prefix, '/etc/fstab', 'keep_default'); $all_hds->{nfss} = [ grep { $_->{fs_type} eq 'nfs' } @fstab ]; $all_hds->{smbs} = [ grep { $_->{fs_type} eq 'smbfs' } @fstab ]; $all_hds->{davs} = [ grep { $_->{fs_type} eq 'davfs2' } @fstab ]; $all_hds->{special} = [ (grep { $_->{fs_type} eq 'tmpfs' } @fstab), { device => 'none', mntpoint => '/proc', fs_type => 'proc' }, ]; } ################################################################################ # various functions ################################################################################ sub df { my ($part, $o_prefix) = @_; my $dir = "/tmp/tmp_fs_df"; return $part->{free} if exists $part->{free}; if ($part->{isMounted}) { $dir = ($o_prefix || '') . $part->{mntpoint}; } elsif ($part->{notFormatted} && !$part->{isFormatted}) { return; #- will not even try! } else { mkdir_p($dir); eval { fs::mount::mount(devices::make($part->{device}), $dir, $part->{fs_type}, 'readonly') }; if ($@) { set_isFormatted($part, 0); unlink $dir; return; } } my (undef, $free) = MDK::Common::System::df($dir); if (!$part->{isMounted}) { fs::mount::umount($dir); unlink($dir); } $part->{free} = 2 * $free if defined $free; $part->{free}; } 1;


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