[ipxe-devel] Need help with SAN boot Windows XP.

jerrycheng-hinet jaspers.cheng at msa.hinet.net
Tue Mar 1 17:47:43 UTC 2011

Thanks, Michael.

After adding some lines as you mentioned in dhcp.conf, I finally can 
succesfully sanboot windows xp via iPXE. Thanks very much for your great 


----- Original Message ----- 
From: "Michael Brown" <mbrown at fensystems.co.uk>
To: "jerrycheng-hinet" <jaspers.cheng at msa.hinet.net>
Cc: <ipxe-devel at ipxe.org>
Sent: Wednesday, March 02, 2011 1:14 AM
Subject: Re: [ipxe-devel] Need help with SAN boot Windows XP.

> On Tuesday 01 Mar 2011 17:01:20 jerrycheng-hinet wrote:
>> After updating the latest iPXE, I did get the error message showed 
>> "Nothing
>> to boot: No such file or directory (http://ipxe.org/2d03e13b)".
>> I follow the hints to use the iPXE command line to perform DHCP manually. 
>> I
>> found iPXE always got DHCP configuration from attached wireless router,
>> which only got an IP address without filename and root-path assigned.
>> In gPXE, it seems always gets the wanted DHCP configuration from the DHCP
>> server, then I can successfully sanboot the windows xp from the assigned
>> root-path.
>> Is there anything I can do to avoid DHCP configuration from wireless
>>  router? What should I do to get the wanted DHCP configuration from DHCP
>>  server? Thanks!
> Generally, you should never have two DHCP servers on the same network. 
> For a
> stable, long-term solution, you should probably disable DHCP on the 
> wireless
> router.
> As a short-term fix, you can use the ipxe.priority option to boost the 
> priority
> of the offer provided by dhcpd:
>  option space ipxe;
>  option ipxe-encap-opts code 175 = encapsulate ipxe;
>  option ipxe.priority code 1 = signed integer 8;
>  # Boost priority from 0 to 1
>  option ipxe.priority 1;
> The default priority is zero, so a priority of 1 should be sufficient to 
> ensure
> that the offer from dhcpd is always selected, provided that both offers 
> are
> seen.
> Michael 

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