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SubjectRe: LANANA: To Pending Device Number Registrants
Date
Guest section DW writes:
> On Thu, May 17, 2001 at 02:35:55AM -0400, Albert D. Cahalan wrote:

>> The PC partition table has such an ID. The LILO change log
>> mentions it. I think it's 6 random bytes, with some restriction
>> about being non-zero.
>
> You are confused. The partition table contains IDs, but these are
> the numbers like 83 for a Linux partition. No disk-identifying numbers.

Care to explain "duplicate MBR signature handling" in the GPT FAQ?
While describing the new-style partitions, Microsoft mentions that
Windows 2000 has a way to mark old-style ("MBR") partitions:

: 58. What happens if a duplicate Disk or Partition GUID is detected?
: Windows Whistler will generate new GUIDs for any duplicate Disk GUID,
: MSR Partition GUID, or MSR basic data GUID upon detection. This is
: similar to the duplicate MBR signature handling in Windows 2000.
: Duplicate GUIDs on a dynamic container or database partition
: cause unpredictable results.

Well, the way to test this would be with Windows 2000, two disks,
and a Linux rescue disk that has "dd" on it. See what gets changed
when the "duplicate MBR signature handling in Windows 2000" runs.

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