* Re: [Fastboot] restoring x86 BIOS state before reboot
@ 2007-04-29 9:41 ` Bernhard Walle
0 siblings, 0 replies; 18+ messages in thread
From: Bernhard Walle @ 2007-04-29 9:41 UTC (permalink / raw)
To: kexec, linux-kernel, Jan Engelhardt
* Eric W. Biederman <ebiederm@xmission.com> [2007-04-29 08:51]:
>
> It may also be worth investigating if it is possible to bypass
> the part of windows that uses BIOS calls. I really don't have
> a clue how a modern windows systems boots.
I think ReactOS has a bootlader that can also boot Windows, or at
least they are close to booting the Windows kernel. That bootloader
could be then used for booting Windows without BIOS calls.
I also heard that the 100-$-Laptop should now be able to use Windows.
As it's using LinuxBIOS, this could also be interesting. However,
maybe Microsoft simply modifies a special Windows for this, or they
integrate a ClosedSource part in that LinuxBIOS, I don't know ... :-(
Thanks,
Bernhard
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^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [Fastboot] restoring x86 BIOS state before reboot
2007-04-29 9:41 ` Bernhard Walle
@ 2007-04-29 14:46 ` Eric W. Biederman
-1 siblings, 0 replies; 18+ messages in thread
From: Eric W. Biederman @ 2007-04-29 14:46 UTC (permalink / raw)
To: kexec; +Cc: linux-kernel, Jan Engelhardt
Bernhard Walle <bwalle@suse.de> writes:
> * Eric W. Biederman <ebiederm@xmission.com> [2007-04-29 08:51]:
>>
>> It may also be worth investigating if it is possible to bypass
>> the part of windows that uses BIOS calls. I really don't have
>> a clue how a modern windows systems boots.
>
> I think ReactOS has a bootlader that can also boot Windows, or at
> least they are close to booting the Windows kernel. That bootloader
> could be then used for booting Windows without BIOS calls.
>
> I also heard that the 100-$-Laptop should now be able to use Windows.
> As it's using LinuxBIOS, this could also be interesting. However,
> maybe Microsoft simply modifies a special Windows for this, or they
> integrate a ClosedSource part in that LinuxBIOS, I don't know ... :-(
I know it isn't a ClosedSource part in LinuxBIOS.
In any particular case you can work through the details, and
make it work.
The hard part is making the general case work.
Eric
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [Fastboot] restoring x86 BIOS state before reboot
@ 2007-04-29 14:46 ` Eric W. Biederman
0 siblings, 0 replies; 18+ messages in thread
From: Eric W. Biederman @ 2007-04-29 14:46 UTC (permalink / raw)
To: kexec; +Cc: linux-kernel, Jan Engelhardt
Bernhard Walle <bwalle@suse.de> writes:
> * Eric W. Biederman <ebiederm@xmission.com> [2007-04-29 08:51]:
>>
>> It may also be worth investigating if it is possible to bypass
>> the part of windows that uses BIOS calls. I really don't have
>> a clue how a modern windows systems boots.
>
> I think ReactOS has a bootlader that can also boot Windows, or at
> least they are close to booting the Windows kernel. That bootloader
> could be then used for booting Windows without BIOS calls.
>
> I also heard that the 100-$-Laptop should now be able to use Windows.
> As it's using LinuxBIOS, this could also be interesting. However,
> maybe Microsoft simply modifies a special Windows for this, or they
> integrate a ClosedSource part in that LinuxBIOS, I don't know ... :-(
I know it isn't a ClosedSource part in LinuxBIOS.
In any particular case you can work through the details, and
make it work.
The hard part is making the general case work.
Eric
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^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [Fastboot] restoring x86 BIOS state before reboot
2007-04-29 9:41 ` Bernhard Walle
@ 2007-04-29 16:28 ` David Woodhouse
-1 siblings, 0 replies; 18+ messages in thread
From: David Woodhouse @ 2007-04-29 16:28 UTC (permalink / raw)
To: Bernhard Walle; +Cc: kexec, linux-kernel, Jan Engelhardt
On Sun, 2007-04-29 at 11:41 +0200, Bernhard Walle wrote:
> I also heard that the 100-$-Laptop should now be able to use Windows.
> As it's using LinuxBIOS, this could also be interesting. However,
> maybe Microsoft simply modifies a special Windows for this, or they
> integrate a ClosedSource part in that LinuxBIOS, I don't know ... :-(
You heard wrong. Microsoft have a few early test units and are trying to
get Windows to boot on it. I believe their plan involves replacing
LinuxBIOS with a 'normal' PC BIOS.
--
dwmw2
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [Fastboot] restoring x86 BIOS state before reboot
@ 2007-04-29 16:28 ` David Woodhouse
0 siblings, 0 replies; 18+ messages in thread
From: David Woodhouse @ 2007-04-29 16:28 UTC (permalink / raw)
To: Bernhard Walle; +Cc: kexec, linux-kernel, Jan Engelhardt
On Sun, 2007-04-29 at 11:41 +0200, Bernhard Walle wrote:
> I also heard that the 100-$-Laptop should now be able to use Windows.
> As it's using LinuxBIOS, this could also be interesting. However,
> maybe Microsoft simply modifies a special Windows for this, or they
> integrate a ClosedSource part in that LinuxBIOS, I don't know ... :-(
You heard wrong. Microsoft have a few early test units and are trying to
get Windows to boot on it. I believe their plan involves replacing
LinuxBIOS with a 'normal' PC BIOS.
--
dwmw2
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^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [Fastboot] restoring x86 BIOS state before reboot
2007-04-29 9:41 ` Bernhard Walle
@ 2007-05-11 18:23 ` Pavel Machek
-1 siblings, 0 replies; 18+ messages in thread
From: Pavel Machek @ 2007-05-11 18:23 UTC (permalink / raw)
To: kexec, linux-kernel, Jan Engelhardt
Hi!
> > It may also be worth investigating if it is possible to bypass
> > the part of windows that uses BIOS calls. I really don't have
> > a clue how a modern windows systems boots.
>
> I think ReactOS has a bootlader that can also boot Windows, or at
> least they are close to booting the Windows kernel. That bootloader
> could be then used for booting Windows without BIOS calls.
>
> I also heard that the 100-$-Laptop should now be able to use Windows.
> As it's using LinuxBIOS, this could also be interesting. However,
> maybe Microsoft simply modifies a special Windows for this, or they
> integrate a ClosedSource part in that LinuxBIOS, I don't know ... :-(
I do not think OLPC is using linuxBIOS these days. What they have
certainly looks like Sun's ROM monitor.
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [Fastboot] restoring x86 BIOS state before reboot
@ 2007-05-11 18:23 ` Pavel Machek
0 siblings, 0 replies; 18+ messages in thread
From: Pavel Machek @ 2007-05-11 18:23 UTC (permalink / raw)
To: kexec, linux-kernel, Jan Engelhardt
Hi!
> > It may also be worth investigating if it is possible to bypass
> > the part of windows that uses BIOS calls. I really don't have
> > a clue how a modern windows systems boots.
>
> I think ReactOS has a bootlader that can also boot Windows, or at
> least they are close to booting the Windows kernel. That bootloader
> could be then used for booting Windows without BIOS calls.
>
> I also heard that the 100-$-Laptop should now be able to use Windows.
> As it's using LinuxBIOS, this could also be interesting. However,
> maybe Microsoft simply modifies a special Windows for this, or they
> integrate a ClosedSource part in that LinuxBIOS, I don't know ... :-(
I do not think OLPC is using linuxBIOS these days. What they have
certainly looks like Sun's ROM monitor.
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [Fastboot] restoring x86 BIOS state before reboot
2007-05-11 18:23 ` Pavel Machek
@ 2007-05-11 19:29 ` Jeremy Fitzhardinge
-1 siblings, 0 replies; 18+ messages in thread
From: Jeremy Fitzhardinge @ 2007-05-11 19:29 UTC (permalink / raw)
To: Pavel Machek; +Cc: kexec, linux-kernel, Jan Engelhardt
Pavel Machek wrote:
> I do not think OLPC is using linuxBIOS these days. What they have
> certainly looks like Sun's ROM monitor.
Yep, looks like they've got Mitch Bradley, (ex?) of Firmworks, doing
their firmware. That means its pretty much exactly OpenFirmware. Lots
of yummy, delicious Forth.
J
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [Fastboot] restoring x86 BIOS state before reboot
2007-05-11 18:23 ` Pavel Machek
@ 2007-05-11 20:18 ` H. Peter Anvin
-1 siblings, 0 replies; 18+ messages in thread
From: H. Peter Anvin @ 2007-05-11 20:18 UTC (permalink / raw)
To: Pavel Machek; +Cc: kexec, linux-kernel, Jan Engelhardt
Pavel Machek wrote:
>
> I do not think OLPC is using linuxBIOS these days. What they have
> certainly looks like Sun's ROM monitor.
>
That would be OpenFirmware, then.
-hpa
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [Fastboot] restoring x86 BIOS state before reboot
@ 2007-05-11 20:18 ` H. Peter Anvin
0 siblings, 0 replies; 18+ messages in thread
From: H. Peter Anvin @ 2007-05-11 20:18 UTC (permalink / raw)
To: Pavel Machek; +Cc: kexec, linux-kernel, Jan Engelhardt
Pavel Machek wrote:
>
> I do not think OLPC is using linuxBIOS these days. What they have
> certainly looks like Sun's ROM monitor.
>
That would be OpenFirmware, then.
-hpa
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^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [Fastboot] restoring x86 BIOS state before reboot
2007-05-11 20:18 ` H. Peter Anvin
@ 2007-05-11 21:11 ` yhlu
-1 siblings, 0 replies; 18+ messages in thread
From: yhlu @ 2007-05-11 21:11 UTC (permalink / raw)
To: H. Peter Anvin; +Cc: Pavel Machek, kexec, linux-kernel, Jan Engelhardt
On 5/11/07, H. Peter Anvin <hpa@zytor.com> wrote:
> Pavel Machek wrote:
> >
> > I do not think OLPC is using linuxBIOS these days. What they have
> > certainly looks like Sun's ROM monitor.
> >
>
> That would be OpenFirmware, then.
>
current kernel for x86 support OFW boot patch?
YH
^ permalink raw reply [flat|nested] 18+ messages in thread