Re: ATA support for 4k sector size

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>>>>> "hpa" == H Peter Anvin <hpa@xxxxxxxxx> 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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