[ECOS] protected boot startup 2nd stage pc boot

Steve West swest@cyglan.com
Mon Feb 12 19:11:00 GMT 2007


Bart,
    Thanks for the input. I have since written a 2nd stage boot for booting 
eCos. It assembles with nasm and can be placed in front of a ecos pc image. 
Here it is for the archives.

Steve
----- Original Message ----- 
From: "Bart Veer" <bartv@ecoscentric.com>
To: <swest@cyglan.com>
Cc: <ecos-discuss@ecos.sourceware.org>
Sent: Monday, February 12, 2007 2:02 PM
Subject: Re: [ECOS] protected boot startup


>>>>>> "Steve" == Steve West <swest@cyglan.com> writes:
>
>    Steve> Can anyone tell me why this attached code does not boot
>    Steve> into protected mode. I am converting from msdos to gcc
>    Steve> compilers and cannot seem to get th pc into prot mode.
>
> That code looks like it came straight from the pcmb HAL package's
> pcmb.inc, for handling bootstrap from floppy. That code is known to
> work fine on typical PCs when booting from floppy. There are various
> reasons why it might not work in any other setup, e.g. if you are not
> running on a typical PC or if you are not booting from floppy. Without
> more information on your setup there is no way of knowing what might
> be going wrong.
>
> Bart
>
> -- 
> Bart Veer                                 eCos Configuration Architect
> http://www.ecoscentric.com/               The eCos and RedBoot experts
> Besuchen Sie uns vom 13.-15.02.07 auf der Embedded World 2007, Stand 
> 11-336
> Visit us at Embedded World 2007, Nürnberg, Germany, 13-15 Feb, Stand 
> 11-336
> 
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