Re: Using Linux as a boot loader -- status and RFH

[Eric Cooper <ecc@cmu.edu>]

On Sun, Jan 30, 2011 at 05:08:07PM +0000, Jason wrote:
> Out of curiosity, why not just run the bootloader kernel?

That would probably be fine on a dedicated embedded system, where you
never plan to change the kernel once it does what you want.  But I'm
planning to continue to run Debian on this device, and will want to
update the kernel along with the rest of the packages on the system on
a regular basis.

> Have you tried compiling the commandline options into the kernel
> you're trying to kexec?  eg CONFIG_CMDLINE

I don't think I need to.  The --append option to kexec seems to work
fine. (See the boot transcript in the thread I referenced -- the
command line is being passed correctly.)

> Do you have a write-up somewhere?

Not yet.  All I've done so far is a minimal kernel config and a
simple-minded rootfs with busybox and kexec-tools.  I'll write a HOWTO
if I can ever get it actually working.

-- 
Eric Cooper             e c c @ c m u . e d u