1 files changed, 78 insertions, 0 deletions
diff --git a/perl-install/fs/proc_partitions.pm b/perl-install/fs/proc_partitions.pm
new file mode 100644
index 000000000..8a1bc8ab0
--- /dev/null
+++ b/perl-install/fs/proc_partitions.pm
@@ -0,0 +1,78 @@
+package fs::proc_partitions; # $Id: proc_partitions.pm 232285 2007-12-03 16:41:16Z pixel $
+
+use common;
+
+
+sub read_raw() {
+    my (undef, undef, @all) = cat_("/proc/partitions");
+    grep {
+	$_->{size} != 1 &&	  # skip main extended partition
+	$_->{size} != 0x3fffffff; # skip cdroms (otherwise stops cd-audios)
+    } map { 
+	my %l; 
+	@l{qw(major minor size dev)} = split; 
+	\%l;
+    } @all;
+}
+
+sub read {
+    my ($hds) = @_;
+
+    my @all = read_raw();
+    my ($parts, $_disks) = partition { $_->{dev} =~ /\d$/ && $_->{dev} !~ /^(sr|scd)/ } @all;
+
+    fs::get_major_minor($hds);
+
+    my $prev_part;
+    foreach my $part (@$parts) {
+	my $dev = $part->{dev};
+	if (my $hd = find { $part->{dev} =~ /^\Q$_->{device}\E./ } @$hds) {
+	    put_in_hash($part, partition_table::hd2minimal_part($hd));
+	}
+	
+	undef $prev_part if $prev_part && ($prev_part->{rootDevice} || '') ne ($part->{rootDevice} || '');
+
+	$part->{device} = $dev;
+	$part->{size} *= 2;	# from KB to sectors
+	$part->{start} = $prev_part ? $prev_part->{start} + $prev_part->{size} : 0;
+	require fs::type;
+	put_in_hash($part, fs::type::type_subpart_from_magic($part));
+	$prev_part = $part;
+	delete $part->{dev}; # cleanup
+    }
+    @$parts;
+}
+
+sub compare {
+    my ($hd) = @_;
+
+    eval { $hd->isa('partition_table::lvm') } and return;
+
+
+    my @l1 = partition_table::get_normal_parts($hd);
+    my @l2 = grep { $_->{rootDevice} eq $hd->{device} } &read([$hd]);
+
+    #- /proc/partitions includes partition with type "empty" and a non-null size
+    #- so add them for comparison
+    my ($len1, $len2) = (int(@l1) + $hd->{primary}{nb_special_empty}, int(@l2));
+
+    if ($len1 != $len2) {
+	if (find { $_->{pt_type} == 0xbf } @l1) {
+	    log::l("not using /proc/partitions because of the presence of solaris extended partition"); #- cf #33866
+	} else {
+	    die sprintf(
+		    "/proc/partitions does not agree with drakx %d != %d:\n%s\n", $len1, $len2,
+		    "/proc/partitions: " . join(", ", map { "$_->{device} ($_->{rootDevice})" } @l2));
+	}
+    }
+    $len2;
+}
+
+sub use_ {
+    my ($hd) = @_;
+
+    require partition_table::readonly;
+    partition_table::readonly->initialize($hd, [ grep { $_->{rootDevice} eq $hd->{device} } &read([$hd]) ]);
+}
+
+1;