On 07/07/2009 03:13 AM, Christof Warlich wrote:
Christof Warlich schrieb:
Do you think I can fix the issue and circumvent the BIOS by passing
the real geomerty of the drive as kernel boot parameters? This may
also have the nice side effect that I could utilize the full capacity
of the drive. I'll definitly do some experiments in this direction and
let you know immediately if I succeed. Please let me know if this may
be a waste of time or if you know an appropriate fix.
I retried with the boot parameter hda=16383,16,63 according to the
values that I got from fdisk, but without success. Anyway, I would have
expected that the kernel may have had a way to set the LBA48 geometry
instead of CHS, but it looks like I'm on the wrong track here...
That's an old IDE parameter, not a libata one, and 160GB is way too
large to be settable using CHS. What you likely want to do is pass the
ignore_hpa=1 option to libata when it's loaded - either
libata.ignore_hpa=1 on kernel command line, or in /etc/modprobe.conf if
it's a module (how exactly to do this depends on your distribution).
That way the protected area on the disk will get disabled and you can
use the full capacity.
You could also permanently remove the HPA using hdparm commands, but if
the BIOS actually can't handle the full drive capacity that might not be
a good idea.
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