[Gllug] Extremely strange disk imaging problem.

[general_email at technicalbloke.com]

On 21/01/11 01:24, general_email at technicalbloke.com wrote:
> On 20/01/11 18:22, Stephen Ford wrote:
>> I have a hunch that it is the 4K drive problem:
>>
>> Sure below is purely a bug report with gparted, but it indicates that
>> underlying libraries are the cause.
>>
>> https://bugzilla.gnome.org/show_bug.cgi?id=497925
>>
>> A symptom of this problem noted in the above bug report is that the
>> disk looks like it is 1/4 the proper size.
>>
>> I suggest getting newer versions of your imaging software, apparantly
>> this issue was somewhat addressed in a release late November.
>>
>> -Steve
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>
> Can't be that I'm afraid. The disk is detected as the wrong size by
> windows, linux and the machines BIOS. Have tried two different sized
> disks now (320GB and 500GB) and the reported size (and free size) was
> exactly the same in both cases. Also, I haven't checked but as far as
> I'm aware 4k sectors only tend to be used on disks >750GB which neither
> of these disks are. Imaging software is the venerable GNU ddrescue, I
> might try again with standard dd just for good measure if I can't turn
> up any better options but I've done this procedure many many times and
> have never had a problem with gddrescue before :/
>
> Roger.
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Indeed have just zeroed the first sector of one of these disks and tried
it in another machine, still 78GB, gah what's eating all my gigabytes!?

Roger.


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