Re: qtparted and kernel disagree about partitions

[consul tores <consultores1@gmail.com>]

2010/3/5 David Goodenough <david.goodenough@btconnect.com>:
> On Friday 05 March 2010, consul tores wrote:
>> 2010/3/5 David Goodenough <david.goodenough@btconnect.com>:
>> > On Friday 05 March 2010, consul tores wrote:
>> >> 2010/3/4 Mike Dresser <mdresser_l@router.windsormachine.com>:
>> >> > On Thu, 4 Mar 2010, David Goodenough wrote:
>> >> >> hda: Host Protected Area detected.
>> >> >> ^Icurrent capacity is 268435455 sectors (137438 MB)
>> >> >> ^Inative  capacity is 312581808 sectors (160041 MB)
>> >> >
>> >> > Is this a PATA drive, and from there, has a jumper on the back for
>> >> > LBA48?
>> >> >
>> >> > Mike
>> >>
>> >> The problem does not look related with HD, it is more related to
>  the
>> >>  kernel. Anyway, You can use a specific tool which is provided by the
>> >> HDs' company.
>> >
>> > Well the linux tool to do the job is supposed to be hdparm -N, but that
>> > does not work because the correct option is not selected in the kernel
>> > (CONFIG_IDE_TASK_IOCTL).
>> >
>> > David
>>
>> Yes, it is absolutely correct respect to kernel, but the second
>> sentences is related to the HD (hardware). The first one reffers to
>> the kernel.
>>
>> francisco
>>
> Are you saying there is a hardware tool provided by Samsung?
>
> Anyway, if you look at bug 572618 you will see the solution, it involves
> two parameters for modules.
>
> David

Yes, it has been a norm for many brands, in fact, some tools work on
many HDs, but i insist it does not look like a hardware problem, it
looks clearly like kernel problem.

If i were in this situation again, first thing to check, should be
using the old kernel which worked well. after that, if i have the same
problem, testing the HD with cfdisk, fdisk and sfdisk should be
sufficient to discard a hardware problem; first, reading man pages,
and DO NOT DOING any change, do not writing any thing. Also, there are
Debian tools that work very efficiently as testdisk, smart-tools (i am
not sure), and others to check HDs and recover data.

francisco.

"thanks for the information:
bug # 572618.
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."