Syslinux - Apr 2008 - alternate tftp server

i just discovered the alternate ftp server syntax for pxelinux in the  
changelog today.  this interests me as I would like to use pxelinux on  
a linux box to give a config file which tells pxelinux to fetch the  
windows 2003 bootloader program (actually startrom.n12 from windows  
2003) from the windows box.

IE:
label windows
   kernel 192.168.1.2::startrom.0

since i can watch the fetching of the pxelinux config file on the  
linux box (with a named pipe) i know exactly when the windows install  
happens and therefore i can twiddle the pxelinux config to localboot 0  
after the windows install starts.  good so far.

now for my question:
i know the windows install works fine via pxelinux when the next- 
server dhcp option lists windows box and my pxelinux config file lists  
kernel startrom.0.

i assume windows startrom is looking at next-server dhcp option to  
know where to tftp ntldr.  is this true? if so, will the  
192.168.1.2::startrom.0 syntax work?  i went looking through the code  
for the alternate tftp server syntax and i don't see anywhere where  
the bootp.sip is re-written with the alternate server ip.  would this  
have to happen for the windows startrom bootloader to know where to  
tftp ntldr from?

thanks everybody

jason

jason bishop wrote:
> 
> i assume windows startrom is looking at next-server dhcp option to  
> know where to tftp ntldr.  is this true? if so, will the  
> 192.168.1.2::startrom.0 syntax work?  i went looking through the code  
> for the alternate tftp server syntax and i don't see anywhere where  
> the bootp.sip is re-written with the alternate server ip.  would this  
> have to happen for the windows startrom bootloader to know where to  
> tftp ntldr from?
> 
As you have surmised, this will not do what you expect.

	-hpa

:)

brain fart.  you beat me to it, i just realized and was about to post  
my mistake.

yes, it works like a charm.  this is very cool.


On Apr 2, 2008, at 6:13 PM, H. Peter Anvin wrote:
> jason bishop wrote:
>>
>> label blah
>>  COMBOOT pxechain startrom.com
>>
>
> label blah
> 	comboot pxechain.cbt
> 	append startrom.com
>
> 	-hpa
>
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