From: Petr Uzel <[email protected]> * libparted/labels/dos.c (write_ext_table): Do not discard bootcode from extended partition on msdos label when some of the logical partitions are changed.
Signed-off-by: Petr Uzel <[email protected]> --- libparted/labels/dos.c | 14 ++++++++++++-- 1 files changed, 12 insertions(+), 2 deletions(-) diff --git a/libparted/labels/dos.c b/libparted/labels/dos.c index e2f4f0b..07d580f 100644 --- a/libparted/labels/dos.c +++ b/libparted/labels/dos.c @@ -1039,6 +1039,7 @@ write_ext_table (const PedDisk* disk, DosRawTable table; PedPartition* part; PedSector lba_offset; + void* table_sector; PED_ASSERT (disk != NULL, return 0); PED_ASSERT (ped_disk_extended_partition (disk) != NULL, return 0); @@ -1046,7 +1047,11 @@ write_ext_table (const PedDisk* disk, lba_offset = ped_disk_extended_partition (disk)->geom.start; - memset (&table, 0, sizeof (DosRawTable)); + if (ptt_read_sector (disk->dev, sector, &table_sector)) { + memcpy (&table, table_sector, sizeof(DosRawTable)); + free(table_sector); + } + memset (&(table.partitions), 0, 4 * sizeof(DosRawPartition)); table.magic = PED_CPU_TO_LE16 (MSDOS_MAGIC); if (!fill_raw_part (&table.partitions[0], logical, sector)) @@ -1077,10 +1082,15 @@ static int write_empty_table (const PedDisk* disk, PedSector sector) { DosRawTable table; + void* table_sector; PED_ASSERT (disk != NULL, return 0); - memset (&table, 0, sizeof (DosRawTable)); + if (ptt_read_sector (disk->dev, sector, &table_sector)) { + memcpy (&table, table_sector, sizeof(DosRawTable)); + free(table_sector); + } + memset (&(table.partitions), 0, 4 * sizeof(DosRawPartition)); table.magic = PED_CPU_TO_LE16 (MSDOS_MAGIC); return ped_device_write (disk->dev, (void*) &table, sector, 1); -- 1.6.0.6 _______________________________________________ parted-devel mailing list [email protected] http://lists.alioth.debian.org/mailman/listinfo/parted-devel
