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

H. Peter Anvin hpa at zytor.com
Tue Jan 31 15:36:04 UTC 2012


On 01/30/2012 08:22 AM, Phillip Susi wrote:
> On 1/30/2012 10:51 AM, Elliott, Robert (Server Storage) wrote:
>> A change to the UEFI specification could be proposed in the UEFI 
>> Forum.  The partition described by the PMBR is bogus, though, so 
>> marking it as bootable seems risky; what's in that area is not 
>> bootable in the legacy BIOS method (i.e., loading the first 
>> logical block of the partition and executing offset zero as x86 
>> code).
> 
> It isn't the bios that does that though; it is the Microsoft MBR
> boot code.  As long as we aren't putting that in the PMBR then it
> wouldn't be a problem, but since the UEFI guys decided to say no
> boot flag in the spec, then it could be a problem.
> 


s/Microsoft //

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.




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