add support for a new Linux-specific GPT partition type code

* NEWS: Describe the new Linux-specific partition type code
and the new msftres flag that can be used to override this type
code, should it be necessary.
* doc/parted.texi: Describe of the new msftres flag.
* include/parted/disk.in.h [_PedPartitionFlag]: Add
PED_PARTITION_MSFT_DATA.
* libparted/disk.c: Add check for PED_PARTITION_MSFT_DATA, with
return of "msftdata", to ped_partition_flag_get_name()
* libparted/labels/gpt.c (PARTITION_LINUX_DATA_GUID): Define.
[_GPTPartitionData]: New member, "int msftdata".
(_parse_part_entry): Set the msftdata flag if and only if the
PARTITION_BASIC_DATA_GUID type code is in use;
(gpt_partition_new): Use the PARTITION_LINUX_DATA_GUID
type as the default type code
(gpt_partition_set_system): Set the PARTITION_BASIC_DATA_GUID type
code on partitions on which the msftdata flag is set and set
PARTITION_LINUX_DATA_GUID as the type by default.
Clear the msftdata flag in most tests in gpt_partition_set_flag()
(gpt_partition_set_flag): Add test for PED_PARTITION_MSFT_DATA, which
sets msftdata and other flags appropriately
(gpt_partition_get_flag): Add test for the PED_PARTITION_MSFT_DATA
item that returns the status of the msftdata flag
(gpt_partition_is_flag_available): Add test for
PED_PARTITION_MSFT_DATA item to
* tests/t0220-gpt-msftres.sh: Accommodate the fact that now,
partition table listings include "msftdata" for file systems
of type NTFS and FAT*.
For more discussion and justification, see
http://thread.gmane.org/gmane.comp.gnu.parted.bugs/10456

1 files changed, 19 insertions, 0 deletions

diff --git a/NEWS b/NEWS
index bab3afb..4c4716d 100644
--- a/NEWS
+++ b/NEWS
@@ -17,6 +17,25 @@ GNU parted NEWS                                    -*- outline -*-
   libparted: treat a disk with no pMBR as an msdos-labeled disk
   even when it has valid GPT headers.
 
+** Changes in behavior
+
+  Added new Linux-specific partition GUID type code
+  (0FC63DAF-8483-4772-8E79-3D69D8477DE4) for Linux filesystem data on GPT
+  disks.  This type code is now assigned as the default partition type code
+  for new partitions holding Linux filesystems.
+
+  Added new "msftdata" flag to identify partitions holding NTFS or FAT
+  filesystems on GPT disks.  This flag corresponds to a GPT type code of
+  EBD0A0A2-B9E5-4433-87C0-68B6B72699C7 ("Microsoft Basic Data").  Since
+  Linux filesystem partitions formerly used this type code, this flag may
+  optionally be set on Linux partitions to make the partition table type
+  codes match former configurations in case the new Linux filesystem type
+  code causes problems with some utility.  Note that this flag cannot be
+  removed from NTFS or FAT partitions within parted except by setting a
+  competing flag, such as "boot" (which sets the type code used by EFI
+  System partitions) or "msftres" (which sets the "Microsoft Reserved" type
+  code).
+
 
 * Noteworthy changes in release 3.1 (2012-03-02) [stable]