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SubjectRe: ATA support for 4k sector size
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>>>>> "hpa" == H Peter Anvin <hpa@zytor.com> writes:

>> Quick answer from one of my contacts. Desktop drives will indeed
>> ship with an alignment of 1(*). The alignment is hardwired at time
>> of manufacture and can't be changed.
>>

hpa> Oh God.

hpa> This is a disaster.

Rationale being that modern Microsoft operating systems know how to
interpret the alignment bits. Legacy XP will work without changes
thanks to the shifted alignment. And Vista+ will do the right thing to
align partition 1 to what the drive reports.

Also note that Windows only aligns the first partition. That's
something we need to be aware of when setting up dual boot systems.

--
Martin K. Petersen Oracle Linux Engineering


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