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SubjectRe: boot option for CONFIG_EDD_SKIP_MBR?
On Thu, Nov 04, 2004 at 07:45:34AM -0600, Matt Domsch wrote:
> On Thu, Nov 04, 2004 at 02:35:58PM +0100, Carl-Daniel Hailfinger wrote:
> > [please CC: me on replies]
> > having had problems (inifinte hang on boot) with some Fujitsu
> > Siemens Scenic computers when EDD was enabled, I asked myself
> > if it would be possible to add a boot option edd=nombr and
> > possibly also another boot option edd=off to the EDD code in
> > the kernel. These would correspond to CONFIG_EDD_SKIP_MBR
> > and CONFIG_EDD, respectively.
> >
> > Yes, option parsing before entering protected mode is ugly,
> > but the vga setup code does it, too.
> >
> > What do you think?
>
> I'd love it. I hadn't done it as I thought it would be ugly, and so
> far I could blame buggy BIOSes for the delay. If you want to work up
> a patch, I'll gladly review and apply something that does such.

But would this actually be useful for the cases where EDD has been
broken so far ? AFAIR, the bootparam parsing happens /after/
we do the 16-bit EDD asm foo.

Dave

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