[syslinux] Problem: booting stops during "Loading /bzimage...."

[H. Peter Anvin]

Chris Osicki wrote:
> Hi 
> 
> I'm having problems PXE-booting a Sun-Blade 100x.
> As the subject line says, booting stops during "Loading /bzimage...."
> 
> Broadcom UNDI PXE-2.1 (build 082) v6.2.11
> Copyright (C) 2000-2003 Broadcom Corporation
> Copyright (C) 1997-2000 Intel Corporation
> All rights reserved.
> 
> CLIENT MAC ADDR: 00 03 BA 44 4F F4  GUID: 00000000 0000 0000 0000 000000000000
> CLIENT IP: 10.148.11.21  MASK: 255.255.255.0  DHCP IP: 10.148.11.106
> 
> PXELINUX 2.06 0x3f46af85  Copyright (C) 1994-2003 H. Peter Anvin
> UNDI data segment at:   00095140
> UNDI data segment size: 4C50
> UNDI code segment at:   00099D90
> UNDI code segment size: 4804
> PXE entry point found (we hope) at 99D9:00D6
> My IP address seems to be 0A940B15 10.148.11.21
> ip=10.148.11.21:10.148.11.106:0.0.0.0:255.255.255.0
> TFTP prefix: /
> Trying to load: pxelinux.cfg/01-00-03-ba-44-4f-f4
> Trying to load: pxelinux.cfg/0A940B15
> Hello from Syslinux
> Loading /bzImage......................
> 

It looks like it begins loading the image and then crashes somewhere. 
One possibility is that the PXE stack is "dirty" and uses memory that 
doesn't belong to it (I've seen this before.)  On the other hand you're 
using a fairly modern PXE stack which ought to work.

Where is the cursor, by the way?

The other possibility is that the kernel did load, and something in the 
right-before-the-kernel-runs code trips it up.

Could you try loading a small program like memtest86 or a com32 program 
and see if it loads?

I obviously don't have access to a Sunblade so I can't exactly debug this...

	-hpa