RE: Switch back to Real mode and then boot strap

From: Aboo Valappil (aboo_at_aboosplanet.com)
Date: 09/28/04

  • Next message: Nick Piggin: "Re: Stack traces in 2.6.9-rc2-mm4" 
    To: "'Alex Riesen'" <raa.lkml@gmail.com>
Date:	Tue, 28 Sep 2004 20:46:40 +1000

    Alex,

    Thanks for your reply, it is really good if I have to load another kernel.
    But in my case the OS on the hard disk could be Windows, Linux or x86
    Solaris. A reboot is required from Linux booted from floppy/ramdisk after
    the hard disk has been imaged with requested operating system by a user.

    Because of the automated behavior of this, changing the boot sequence is not
    an option. That is why I am after executing real mode BIOS interrupts to
    load the MBR and then pass control to it.

    Any help will be appreciated :)

    Thanks

    Aboo

    -----Original Message-----
    From: linux-kernel-owner@vger.kernel.org
    [mailto:linux-kernel-owner@vger.kernel.org] On Behalf Of Alex Riesen
    Sent: Tuesday, September 28, 2004 8:22 PM
    To: Aboo Valappil
    Cc: linux-kernel@vger.kernel.org
    Subject: Re: Switch back to Real mode and then boot strap

    On Tue, 28 Sep 2004 20:11:59 +1000, Aboo Valappil <aboo@aboosplanet.com>
    wrote:
    > Basically I have a requirement of re-booting ( Without really rebooting )
    > the OS from the hard disk ( even if a floppy is present or a bootable
    CD-ROM
    > is present). Update CMOS to change the boot sequence is not an option for
    > my requirement.

    You probably want to look at kexec.
    I.e. there: http://lwn.net/Articles/15468/
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  • Next message: Nick Piggin: "Re: Stack traces in 2.6.9-rc2-mm4"

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