Re: netboot on IBM Thinkpad A21p

[OKUJI Yoshinori]

From: Sebastian Kirsch <address@hidden>
Subject: Re: netboot on IBM Thinkpad A21p
Date: Mon, 25 Jun 2001 23:22:27 +0200

> I searched for 'thinkpad', but failed to find anything of relevance. Sorry. 

Use the word "EtherExpressPro" instead.

> Just for fun, I tried putting timer.[ch] and eepro100.c from etherboot 
> 5.1.0 into grub -- it compiled all right, but the machine I tried it on 
> halted with 'Probing...' on the display.

First, please make sure that the genuine Etherboot driver works with
your chipset well. I think it would be possible that the current
version of Etherboot might not work with some cards. In this case, you
need to patch Etherboot rather than GRUB, because the drivers are
derived from Etherboot.

> As far as I can tell, the probe 
> routines changed completely in 5.1.0, and etherboot finally got a real 
> nanosecond timer instead of an uncalibrated delay loop.

You are right. The point is how to "mimic" the timer in GRUB.

> I'll try and see 
> whether I can cobble something together, knowing exactly zilch, zero, 
> nothing about device driver programming. 

Good luck!

Okuji