Re: [Qemu-devel] [PATCH] Physical hard disk drive for win32

[Johannes Schindelin]

Hi,

On Wed, 24 Oct 2007, Stefan Weil wrote:

> Johannes Schindelin schrieb:
> > I think I fixed it. Since I am not your regular Windows user (I only 
> > use Windows when I have to), I cannot tell if it works, though.
> >
> > It is here: 
> > http://repo.or.cz/w/qemu/dscho.git?a=shortlog;h=diskgeometry
> >
> > Any testing (especially the physical drive on Windows < XP) would be 
> > very much appreciated. ... Ciao, Dscho
>
> With your patch, W2K will still see a wrong disk size.

Funny.  I thought that since kazu did the original patch, and kazu is a 
Windows user, that it worked at _some_ stage.

Also I have to note that IOCTL_DISK_GET_DRIVE_GEOMETRY is a Windows 2000 
feature, so unfortunately there is really no backwards compatibility to 
Windows 95/98/ME.

> This is caused by the fact that the size of a modern harddisk has 
> nothing to do with tracks per cylinder or sectors per track - it is not 
> simply the product of four values.

Since it obviously worked in one setting, there might be a chance that it 
is fixable.  Could you be a little bit more specific in what is going 
wrong?  I.e. what is the real size, and what are the four values?

> Even without a patch, the current code in CVS HEAD
> still allows compilation using MinGW on any Windows.

Yes, but a setup that was evidently working before was broken.

Ciao,
Dscho