RE: Chain-booting PXE bootloaders

[Turner, Ian]

Here are a couple of use cases:

Windows:
http://technet.microsoft.com/en-us/library/cc722358%28WS.10%29.aspx

Solaris:
http://redhatcat.blogspot.com/2008/07/loading-pxegrub-from-pxelinux.html

Other random proprietary software:
http://syslinux.zytor.com/archives/2006-April/006811.html

It seems like what this requires is to leave the UNDI & PXE drivers loaded, 
then load the chain image and jump to it.

If this isn't supported as-is, no worries, just wanted to check if it was 
expected to work. Let me know if you need more information on Windows. I am not 
a Windows guy myself so can only go so deep.

Cheers,

--Ian

-----Original Message-----
From: address@hidden [mailto:address@hidden On Behalf Of Vladimir 
'f-coder/phcoder' Serbinenko
Sent: Thursday, August 26, 2010 7:22 PM
To: address@hidden
Subject: Re: Chain-booting PXE bootloaders

On 08/27/2010 01:04 AM, Turner, Ian wrote:
> Hello all,
>
> We're trying to chainload PXE bootloaders. This is required in order to 
> netboot Windows or DOS, and is also useful for Solaris jumpstart builds.
It's not supported because of a priori no clear benefits present.
@Seth can you comment on Solaris part?
DOS is best loaded using grub+memdisk (later one is a helper available
from syslinux pages).
Could you detail the windows part?
>  Is this feature supported by GRUB? Simply running the following command line 
> causes GRUB to read the configuration file the TFTP server, then either hang 
> or reboot:
>
> chainloader --force /path/to/pxelinux.0
>   
Usually if someone tells you "wrong signature" it may mean something...
--force was added because of now dead SCO (now Tarantella, don't confuse
with Litigious Bastards) Unix. Removing it may create some hassle if
someone uses it so it's kept.
> boot
>
> Thanks in advance for your thoughts.
>
> --Ian Turner
>
> _______________________________________________
> Grub-devel mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/grub-devel
>
>   


-- 
Regards
Vladimir 'φ-coder/phcoder' Serbinenko