Re: tftpboot.img

[Jason Pepas <j.pepas@mail.utexas.edu>]

> Is there a boot image that's around 64k?
> netBSD has a two stage system where a 64k boot image is
> loaded.  This image then loads the kernel/rootfs over
> NFS.
>
> Is there such a thing for debian?
>
> If anyone could help, i'd really appreciate it.
>
> ~Aaron Vose
> avose@cs.utk.edu

sounds like you are looking for etherboot or netboot.

here is an excerpt from http://jason.pepas.com/linux/notes/diskless.txt

---
Diskless Node Bootdisk:
---

If using netboot:

On the nfs server, run

  apt-get install netboot
  makerom

This will make image.flo and image.rom.
Image.flo is for floppies and image.rom is
for burning to a bootrom.

Write image.flo to a floppy with

  dd if=image.flo of=/dev/fd0

If using Etherboot:

go to http://etherboot.sourceforge.net/distribution.html
and grab the latest production release, and the documentation if you like.

then:

 tar xzvf etherboot-x.x.x.tar.gz
 cd src
 make bin32/card.dsk
 
where card is the name of your card, ie, rtl8139.dsk.
grep the Makefile for card names.

your floppy image will be in src/bin32, named card.dsk.
Write it to floppy:

 cat card.dsk > /dev/fd0

-jason pepas