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SubjectRe: ATA support for 4k sector size
>>>>> "hpa" == H Peter Anvin <> 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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