Bug#572618: linux-image-2.6.32-2-686: missing config option CONFIG_IDE_TASK_IOCTL detected by hdparm -N
On Friday 05 March 2010, Ben Hutchings wrote:
> On Fri, 2010-03-05 at 09:39 +0000, David Goodenough wrote:
> > Package: linux-2.6
> > Version: 2.6.32-8
> > Severity: important
> >
> >
> > My hard disk (a Samsumg HM160HC) seems to have a Host
Protected Area,
> > which previous kernels did not detect. So I have an area of the disk
> > that currently I can not access, but are covered by the partition table.
> >
> > I read following Google searches that the fix is to use hdparm -N, but
> > when I run it I get:-
> >
> > $> sudo hdparm -N /dev/hda
> >
> > /dev/hda:
> > The running kernel lacks CONFIG_IDE_TASK_IOCTL support for this
device.
> > READ_NATIVE_MAX_ADDRESS_EXT failed: Invalid argument
> >
> > Previous kernels (at least 2.6.26 which I used to run on this machine
> > with Debian) did not seem to notice the HPA, so either I need a way to
> > turn off the kernel's detection of the HPA or I need
> > CONFIG_IDE_TASK_IOCTL enabled to enable hdparm -N to work.
>
> You should be able to make the kernel ignore the HPA thus:
>
> 1. Create a file under /etc/modprobe.d containing the lines:
> options ide_core nohpa=0.0
> options libata ignore_hpa=1
> 2. Run 'update-initramfs -u -k 2.6.32-2-686'
> 3. Reboot
>
> Ben.
>
Excellent, thank you that worked. I had found the libata ignore_hpa=1
in various forums, but no one had mentioned the ide_core nohpa=0.0
and that (or rather the combination of the two) did the trick.
Can I close the bug (if so how) otherwise feel free to close it.
Given that these days (I know in the past that IBM PS/2 machines
needed an area for BIOS most of which was stored on disk) the only
use for HPA seems to be for windows reload areas, I suppose the
only question is when you would want HPA to be enabled on a linux
box?
David
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