Re: Linux as Bootloader

[Eric W. Biederman]

Christian Gmeiner <christian.gmeiner@xxxxxxxxx> writes:

> Hi all,
>
> I am using the linux kernel in combination with busybox and a separate
> bootloader app to
> startup a x86 based embedded device. As the used BIOS does only do
> basic hw init, we
> used Linux as a bootloader. Our custom BIOS starts the bootloader
> kernel located in BIOS
> flash. If the kernel and userland is ready our boot application
> searches for the productive kernel
> and executes it via kexec.
>
> Now I run in some troubles as I need to be able to boot a MSDOS
> application stored on
> an usb stick. I have tried grub4linux but I am not able to boot from
> the usb stick - even I
> see the grub command line.
>
> Are there some creative/working solutions for my problem?

There has been some success using a modified bochs bios on real hardware
in the context of coreboot.  That should be loadable from linux and
usable on your setup.  Avoiding the DOS requirement is probably a more
certain path, getting DOS going is probably more fun.

Eric
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