Respecting the Host Protected Area
psusi at cfl.rr.com
Wed May 28 20:53:12 BST 2008
Ben Collins wrote:
> It's entirely in the harddrive. There are utilities that can configure
> it to remove it permanently, or modify the HPA.
Could you point me to one? Maybe on upgrade we could detect the
condition where part of an existing partition extends into the HPA and
if so, prompt the user to disable it permanently, but otherwise, do the
right thing and respect it.
> It is interesting that the IDE driver has been like this since forever,
> and it was never changed upstream. True, they got things right the
> second time, nearly a decade later, with libata, but that doesn't negate
> the problem we, as a distribution, have to account for.
It was probably never fixed because so few people ever had a reason to
notice. Not many systems make use of HPA and of those that do, how many
people actually ran into one of the issues that caused? Of those, how
many managed to figure out what the cause of the problem was?
Now that the problem has been identified and fixed, let us do the right
thing going forward so as not to cause these problems in the future,
rather than diverge from mainline and retain the old, broken behavior.
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