On Fri, 5 Apr 2002, Jeremy Jackson wrote:
> ----- Original Message -----
> From: "Martin J. Bligh" <Martin.Bligh@us.ibm.com>
> Sent: Friday, April 05, 2002 5:48 PM
>
> > I need to avoid going through the BIOS ... this is a
> > multiquad NUMA machine, and it doesn't take kindly
> > to the reboot through the BIOS for various reasons.
> > It also takes about 4 minutes, which is a pain ;-)
> >
> > I have source code access to our BIOS if I really wanted,
> > I just want to avoid modifying it if possible.
>
> well keep in mind that the fastest LinuxBIOS boot is 3 seconds...
> a large part of the boot time on most PCs is the BIOS setting up
> DOS support and painting silly logos on the screen, all of which
> can go away. I'm guessing your NUMA system has a bit more
> to do at this stage due to the hardware, but still...
Wouldn't it be easier to just ljmp to the start address of the kernel in memory
(the address after the bootloader has done its thing), effectively restarting
the kernel from line 1? Or is tehre an issue with some hardware being in an
invalid state when doing this?
Maybe Eric Biederman can comment on this since he's adding new functionality to
the boot loader..
-Byron
-- Byron Stanoszek Ph: (330) 644-3059 Systems Programmer Fax: (330) 644-8110 Commercial Timesharing Inc. Email: byron@comtime.com- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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