[coreboot] SeaBIOS + Windows + Coreboot

Steve Spano steve at fl-eng.com
Mon Oct 13 16:30:31 CEST 2008

Hi Kevin,

Thanks for the runthrough. I will redo with V2 coreboot and looks like I
will have to port in some low-level VGA startup according to your patches.

I will keep the list posted with my results and problems, my goal here is to
boot Windows 2000/XP/CE on the AMD Geode LX800.


Steve Spano, President
Finger Lakes Engineering

-----Original Message-----
From: coreboot-bounces at coreboot.org [mailto:coreboot-bounces at coreboot.org]
On Behalf Of Kevin O'Connor
Sent: Sunday, October 12, 2008 10:46 AM
To: Steve Spano
Cc: 'Myles Watson'; coreboot at coreboot.org
Subject: [coreboot] SeaBIOS + Windows + Coreboot

Hi Steve,

On Sat, Oct 11, 2008 at 03:13:26PM -0400, Steve Spano wrote:
> I switched to the new download of SEABIOS and am using the 
> amd_vsa_lx.bin vsa bios from the AMD website posted in Jan 2008.
> With corebootv3 + seabios, I can boot into my 1GB Compact Flash with 
> Linux (which is what I was doing with corebootv2).


> However, I am trying to boot to a CDROM so I can load Windows2000 onto 
> a 4GB compact flash card. This doesnt appear to be working yet. 
> Booting to a known good hard disk with a WIndows XP image doesnt work 
> either.
> I get here
> Seems to find a VGA ROM, with a checksum issue? Is this right? Then 
> looks like it tries to boot to the HDD or CDROM but the system 
> freezes.

Windows support is still a WIP.  I have booted WinXP with corebootv2 and
seabios on one of my boards - so it is possible.  (BTW, you are probably
better off trying corebootv2 + seabios.)  However, it will require some
tweaking.  I posted the tweaks I used at:


Unfortunately, your board will require slightly different tweaks.

Because you're seeing a vga rom checksum issue, I'm guessing you are not
seeing any vga output from seabios.  Is this correct?  If you don't have vga
output you'll need to fix that first.  In the above patch, you'll see that I
tweaked how coreboot initializes vga (I have coreboot copy the vga rom, but
not call it).

Where did you obtain coreboot and seabios from?  (Was it from svn/git or one
of the released packages?)


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