[parted-devel] [PATCH 0/4] Add ability to set GPT PMBR boot flag

[Phillip Susi]

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On 01/28/2012 01:23 PM, Brian C. Lane wrote:
> We can't know for certain that there are not BIOS's that check to make
> sure it isn't set. Since that is how the spec was written it is possible
> that such a BIOS exists.

I'm pretty sure we can actually, since such a bios wouldn't be able to boot Windows, or at least some Linux distributions that go ahead and set the flag because some bioses won't boot without it.  If such a bios were released, not being able to boot the de facto standard PC OS certainly would result in it being fixed very quickly.

> It would be alot easier to just set it, but then what do we do if we
> find out that there are others expect it to be clear?

Theoretically, then you would need to add a flag to switch it off.

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