Re: Origin of hard drive parameters

2006-09-11 Thread jdow
From: "Ian Graeme Hilt" <[EMAIL PROTECTED]> On Monday 11 September 2006 2:42 am, jdow wrote: From: "Ian Graeme Hilt" <[EMAIL PROTECTED]> > May I point out that I was not interested in CHS alone. My focus was the > origin of the hard drives parameters i.e. geometry, which is the subject > of >

Re: Origin of hard drive parameters

2006-09-11 Thread Ian Graeme Hilt
On Monday 11 September 2006 2:42 am, jdow wrote: > From: "Ian Graeme Hilt" <[EMAIL PROTECTED]> > > > May I point out that I was not interested in CHS alone. My focus was the > > origin of the hard drives parameters i.e. geometry, which is the subject > > of > discussion. From this discussion and ot

Re: Origin of hard drive parameters

2006-09-10 Thread jdow
From: "Ian Graeme Hilt" <[EMAIL PROTECTED]> May I point out that I was not interested in CHS alone. My focus was the origin of the hard drives parameters i.e. geometry, which is the subject of > discussion. From this discussion and other sources I have learned that CHS, > as you say, is arbitr

Re: Origin of hard drive parameters

2006-09-10 Thread Ian Graeme Hilt
On Saturday 09 September 2006 10:53 pm, jdow wrote: > From: "stheg olloydson" <[EMAIL PROTECTED]> > > > On 9 Sep 2006 14:54:09 - ihilt wrote: > >>On Wednesday 06 September 2006 7:54 pm, jdow wrote: > >>> >> Ok. Maybe the better question is: in either case, C/H/S or > > > > LBA mode, > > > >>> >

Re: Origin of hard drive parameters

2006-09-09 Thread jdow
From: "stheg olloydson" <[EMAIL PROTECTED]> On 9 Sep 2006 14:54:09 - ihilt wrote: On Wednesday 06 September 2006 7:54 pm, jdow wrote: >> Ok. Maybe the better question is: in either case, C/H/S or LBA mode, >> where are these parameters stored? They flat out are not stored anywhere. T

Re: Origin of hard drive parameters

2006-09-09 Thread jdow
From: "stheg olloydson" <[EMAIL PROTECTED]> On 9 Sep 2006 14:54:09 - ihilt wrote: On Wednesday 06 September 2006 7:54 pm, jdow wrote: >> Ok. Maybe the better question is: in either case, C/H/S or LBA mode, >> where are these parameters stored? They flat out are not stored anywhere.

Re: Origin of hard drive parameters

2006-09-09 Thread stheg olloydson
On 9 Sep 2006 14:54:09 - ihilt wrote: >On Wednesday 06 September 2006 7:54 pm, jdow wrote: > >> >> Ok. Maybe the better question is: in either case, C/H/S or LBA mode, >> >> where are these parameters stored? > >> They flat out are not stored anywhere. There is a standard algorithm >> publish

Re: Origin of hard drive parameters

2006-09-09 Thread Ian Graeme Hilt
On Wednesday 06 September 2006 7:54 pm, jdow wrote: > >> Ok. Maybe the better question is: in either case, C/H/S or LBA mode, > >> where are these parameters stored? > They flat out are not stored anywhere. There is a standard algorithm > published by the VESA people, I believe, that provides the

Re: Origin of hard drive parameters

2006-09-06 Thread jdow
From: "Chuck Swiger" <[EMAIL PROTECTED]> On Sep 6, 2006, at 1:06 PM, Hilt, Ian wrote: The hard disk has an on-board controller which answers the ATA "IDENTIFY DEVICE" command with the hard drive parameters used by the BIOS, assuming that the BIOS is operating in the legacy C/H/S mode rather tha

RE: Origin of hard drive parameters

2006-09-06 Thread Hilt, Ian
> -Original Message- > From: Chuck Swiger [mailto:[EMAIL PROTECTED] > Sent: Wednesday, September 06, 2006 4:21 PM > To: Hilt, Ian > Cc: freebsd-questions@freebsd.org > Subject: Re: Origin of hard drive parameters > > On Sep 6, 2006, at 1:06 PM, Hilt, Ian wrote: &

Re: Origin of hard drive parameters

2006-09-06 Thread Chuck Swiger
On Sep 6, 2006, at 1:06 PM, Hilt, Ian wrote: The hard disk has an on-board controller which answers the ATA "IDENTIFY DEVICE" command with the hard drive parameters used by the BIOS, assuming that the BIOS is operating in the legacy C/H/S mode rather than the newer LBA mode which uses absolute bl

RE: Origin of hard drive parameters

2006-09-06 Thread Hilt, Ian
> -Original Message- > From: Chuck Swiger [mailto:[EMAIL PROTECTED] > Sent: Wednesday, September 06, 2006 2:55 PM > To: Hilt, Ian > Cc: freebsd-questions@freebsd.org > Subject: Re: Origin of hard drive parameters > > On Sep 6, 2006, at 11:40 AM, Hilt, Ian wrote:

Re: Origin of hard drive parameters

2006-09-06 Thread Chuck Swiger
On Sep 6, 2006, at 11:40 AM, Hilt, Ian wrote: Basically, I want to know where the BIOS gets the hard drive parameters when the Drive Type is set to "AUTO" in the BIOS configuration. The best I've been able to come up with from the internet is an "IDENTIFY" command that purportedly (