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xen-devel
[Xen-ia64-devel] Re: [Xen-devel] [PATCH][RFC] Support GPT (GUID Partitio
Hi Keir,
>>>>> On Wed, 11 Apr 2007 15:27:53 +0100
>>>>> keir@xxxxxxxxxxxxx(Keir Fraser) said:
>
> On 11/4/07 08:48, "Takahashi Tomohiro" <takatom@xxxxxxxxxxxxxx> wrote:
>
> > I made a patch for GPT support.
>
> I don't see anything wrong with it, although won't it always be the first
> legacy partition that is marked with type 0xee?
No, but this patch supports the second (or third, ...) legacy
partition marked with 0xee.
# I have no idea whether it is necessary well...
This patch has different problems. get_active_partition() returns a
entry of a legacy partition. Since the structure of GPT partition
entries differs from the structure of legacy partition entries, this
patch has the following problem:
- pygrub cannot access a domain more than 2^32 * SECTOR_SIZE because
get_fs_offset() treats the offset as a 32-bit integer. In GPT, the
offset must be treated as 64-bit integer.
- This patch returns a part of a GUID unique to the partition as
legacy partition types. pygrub may misunderstand partition types.
I plan to fix this problem.
Best Regards,
--
KUWAMURA Shin'ya
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