Ian Dowse wrote:
[ ... booting another OS that is either real mode or requires the
use of a real mode bootstrap, at FreeBSD shutdown ... ]
> Yeah, I attempted something like this a few years ago without much
> success. I've just updated the code to compile on -stable, and it
> seems to hal
On Thu, 6 Dec 2001, Mike Smith wrote:
> As John said, actually, really going back to real mode is hard. It would
> be easier to just reboot the system, especially since we have probably
> left hardware in odd states.
True. For two kernel monte and LOBOS we never leave protected mode before
boot
In message <[EMAIL PROTECTED]>, John Baldwin writes:
>The short form is htat you need to hack the cpu_halt to call a function that
>puts a stub down in low memory, and calls it. This code needs to be mapped 1:1
>so that the logical address == physical address. The first thing you will
Yeah, I a
> It's still there. See the code in /sys/boot, in particular,
> the bios code in boot2 and boot 3.
You're thinking of the bioscall interface in BTX, I guess, which uses
v86 mode, not real mode.
As John said, actually, really going back to real mode is hard. It would
be easier to just reboot t
> >> > I saw an example of switching in real mode in linux' sources (it looks
> >> > pretty clear) and thouhgt it is possible to do the same under FreeBSD.
> >> > The problem is I'm absolutely lost in FreeBSD's physical memory management
> >> > implementation (page tables and directory and so on).
On 06-Dec-01 Nate Williams wrote:
>> > I saw an example of switching in real mode in linux' sources (it looks
>> > pretty clear) and thouhgt it is possible to do the same under FreeBSD.
>> > The problem is I'm absolutely lost in FreeBSD's physical memory management
>> > implementation (page table
On Thu, 6 Dec 2001, Ronald G Minnich wrote:
> no, you are right. It's just that the freebsd code for this is a nice
> tutorial, then when he looks at bootimg or whatever it will be easier to
^^^
NOT a typo. bootimg is Werner Almesberger's (LILO guy) linux-boo
> > I saw an example of switching in real mode in linux' sources (it looks
> > pretty clear) and thouhgt it is possible to do the same under FreeBSD.
> > The problem is I'm absolutely lost in FreeBSD's physical memory management
> > implementation (page tables and directory and so on).
>
> That c
On Thu, 6 Dec 2001, Terry Lambert wrote:
> It isn't enough to do what he wants, though. He wants to effectively
> return to real mode and jump to a real mode boot strap loader, as if
> in the second stage of a boot manager, after the partition to boot has
> been selected (e.g. "Reboot to Linux",
Ronald G Minnich wrote:
> > I saw an example of switching in real mode in linux' sources (it looks
> > pretty clear) and thouhgt it is possible to do the same under FreeBSD.
> > The problem is I'm absolutely lost in FreeBSD's physical memory management
> > implementation (page tables and directory
Dmitry Konyshev wrote:
[ ... reboot with new active partition ... ]
> I thought of this way, but it might seem "strange" for a user if her
> computer would want to reboot without any obvious reason. I'll keep
> this way in mind for the case I fail to implement it in more user-friendly
> manner.
On Thu, 6 Dec 2001, Dmitry Konyshev wrote:
> I saw an example of switching in real mode in linux' sources (it looks
> pretty clear) and thouhgt it is possible to do the same under FreeBSD.
> The problem is I'm absolutely lost in FreeBSD's physical memory management
> implementation (page tables a
On Thu, 6 Dec 2001, Terry Lambert wrote:
> Dmitry Konyshev wrote:
> > For some odd reason I need to load another OS (no matter which one,
> > everything that known about it is its boot sector number)
> > at the end of the reboot syscall. Could someone please explain how to
> > switch processor to
Hello Terry,
Thursday, December 06, 2001, 6:08:44 PM, you wrote:
TL> Dmitry Konyshev wrote:
>> For some odd reason I need to load another OS (no matter which one,
>> everything that known about it is its boot sector number)
>> at the end of the reboot syscall. Could someone please explain how to
Hi,
At 17:04 06/12/01 +0300, Dmitry Konyshev wrote:
>Hello!
>
>For some odd reason I need to load another OS (no matter which one,
>everything that known about it is its boot sector number) [etc]
man boot0cfg, look at the -s option.
eg something like:
boot0cfg -s 2 ad0
reboot
--
Bob Bishop
Dmitry Konyshev wrote:
> For some odd reason I need to load another OS (no matter which one,
> everything that known about it is its boot sector number)
> at the end of the reboot syscall. Could someone please explain how to
> switch processor to real mode and continue program execution from some
Hello!
For some odd reason I need to load another OS (no matter which one,
everything that known about it is its boot sector number)
at the end of the reboot syscall. Could someone please explain how to
switch processor to real mode and continue program execution from some
point in low memory?
T
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