Re: [TCLUG:7926] Cylinder interpretation

[Chris Kesler <chris@pconline.com>]

The limit applies to both.  If you're using the physical CHS for your
drive, then you must have your boot partition below the first 1024
physical cylinder.  If you're using LBA, then the boot partition must be
below the 1024th logical cylinder. 

LBA is used to overcome a limitation on hard drive size.  It does a
translation between the BIOS calls and the physical CHS to allow you to
use disks with > 1024 physical cylinders.  But the rest of your BIOS still
sees only 1024 cylinders.  And, since LILO is a real mode program, it has
the same limitations as the BIOS.

Hope that helps.
Chris


On Thu, 26 Aug 1999, ^chewie wrote:

> On Thu, 26 Aug 1999, Chris Kesler wrote:
> 
> > I see that you're booting from /dev/hda7.  You might have problem
> > with that if part of your extended partition is past the 1024
> > cylinder limit.
> 
> I have a question about this.  Does this cylinder limit translate from
> CHS or from LBA, as a cylinder is recognized differently between the
> two. Is it BIOS dependent?
> 
> Later!
> 
>     ^chewie
> 
> +----------------------------------------------------+
> | Chad Walstrom           mailto:chewie@wookimus.net | 
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