[Parted-maintainers] [parted-devel] a problem about 100% indicating the whole disk

[zhuyj]

On 11/06/2013 10:31 PM, Phillip Susi wrote:
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> On 11/6/2013 1:22 AM, zhuyj wrote:
>> Hi, Phillip
>>
>> Thanks for your reply. I made tests. Other percentages will not get
>> the incorrect treatment. Only when percentage is 100%, this problem
>> will appear, that is, parted fails to work.
> The problem has two parts: the first is that the power of two size is
> triggering the exact placement, and the second is that with 100%,
> rounding error ends up changing the size to 1 sector past the end of
> the disk, and when that is combined with the exact placement, causes
> you to be unable to create the partition.  The exact placement still
> applies to the other percentages and it shouldn't.
>
> This should become visible as failures if you try to create multiple
> partitions using percentages, where the exact placement rule will
> likely cause a problem creating a partition starting at 50% of the
> disk, when the first partition ends at 50%.
>
Thanks a lot.
I made tests. The results can verify your advice.

Best Regards!
Zhu Yanjun
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