lkml.org 
[lkml]   [1999]   [Apr]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Flash linux into PC bios?
On Mon, Apr 19, 1999 at 01:55:19AM -0000, thospel@mail.dma.be wrote:
>
> In article <Pine.LNX.4.04.9904172013390.649-100000@berserk.demon.co.uk>,
> Peter Horton <pdh@colonel-panic.com> writes:
> > On Sat, 17 Apr 1999, Paul Jakma wrote:
> >
> >> theoretical question:
> >>
> >> what would happen if i flashed a linux kernel into the BIOS of a
> >> recent pc motherboard, given that the EEPROM is big enough to hold
> >> the kernel.
> >>
> >> would it work. the kernel already can initialise most motherboard
> >> chipsets, eg PIIX, VP3, so how much stuff does the bios do that the
> >> kernel can't? is there any really low level stuff that needs to be
> >> tweaked, eg memory timings, that linux couldn't do?
>
> As a data-point, I once screwed up the bios on an ASUS P2H4 motherboard,
> and tried to boot linux when all the system could still do was starting a
> boot floppy.
>

But the fact it could boot a floppy means that memory, PCI bus, CPLDs etc...
were initialized. All this initialization is done by the BIOS. So there was
still a small piece of BIOS code left, probably in the write protected region
of the FlashPROM.

> The boot worked succesfully until it had to really read something from the
> IDE-harddisk. At that point it failed completely. I did some extra experiments
> with forced geometries in lilo, but to no avail.
>

Maybe the IDE interface was not initialized by the BIOS ?

Peter.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:51    [W:0.049 / U:12.488 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site