linux-kernel - Re: Allow turning off hpa-checking.

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Message-ID: <20061127163328.3f1c12eb@localhost.localdomain>
Date:	Mon, 27 Nov 2006 16:33:28 +0000
From:	Alan <alan@...rguk.ukuu.org.uk>
To:	avl@...ic.at
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Allow turning off hpa-checking.

> What the drive reports as "native" capacity indeed does
> *not* take into (negative-)account those sectors, that have
> been remapped.   So after real remaining capacity has dropped
> below original capacity,  querying the "native" size still
> returns the original size, which is no longer physically
> backed.

This is incorrect.

> I ask for a module/boot-option to allow to skip hpa-checks
> generally, or even for specific drives - to be used, if one
> needs to be sure that these reserved sectors of a connected
> drive are not going to be touched, even when re-partitioning
> the disk.   Afterall that's why they are reserved in the
> first place.

This is a matter for the partitioning tool. You don't know at boot time
what you wish to do with the HPA so a boot option is inappropriate.

Alan
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