Re: [Xen-users] PXE-booting Xen using PXELINUX

[Yvette <yentlsoup@xxxxxxxxx>]

Just saying "no" seems a bit severe, but I don't have a lot of other info. 

The client machine is an ibm thinkpad t22 (bios 1.12/current) with an
e100 (pro) nic. It's using version 4.0.17 of the Intel boot agent
(looks like it's the most recent they released for it). The dhcp/tftp
server is a domU running xen 2.0.5/debian sarge, with tftpd-hpa as the
server. I mainly tried your pxelinux.cfg/configuration from below,
although changing things around didn't change the outcome. After
booting and getting the ip address, it gets to this point, then hangs
at "Trying to load: pxelinux.cfg/default" or on the server side:

May  5 00:45:23 debian-domU in.tftpd[487]: RRQ from 10.77.77.221
filename pxelinux.0
May  5 00:45:23 debian-domU in.tftpd[488]: RRQ from 10.77.77.221
filename pxelinux.cfg/default
May  5 00:45:23 debian-domU in.tftpd[489]: RRQ from 10.77.77.221
filename mboot.c32

A tcpdump on the server pretty much just confirmed the logs - it
starts to transfer mboot.c32, carries on for a bit, then loses contact
with the client.

I tried to boot the same hardware/setup using the debian installer
(rc3) netboot pxe images, and those did work (which doesn't mean I
have it set up correctly for this - I'm about as far from being a PXE
guru as a person can get).

Sorry I couldn't be more helpful, but if you want me to try something
else, let me know.
-Yvette

On 4/28/05, Tim Deegan <Tim.Deegan@xxxxxxxxxxxx> wrote:
> Hi all,
> 
> A number of people have posted to the Xen lists recently wanting to
> network-boot Xen on machines whose NICs are not supported by GRUB.  I've
> been writing a module for PXELINUX that will allow it to boot Xen
> directly over the network on PXE-enabled machines, without relying on
> any hacks (mbootpack, &c.), or needing to write/port any device drivers.
> 
> I have a version of it which works for me [tm] and I'd be very
> interested in feedback from other people who want to PXE-boot Xen.
> Assuming you already have dhcp/tftp up and working at your site, it
> should be easy to test:
> 
> 1) Edit dhcpd.conf to boot pxelinux on your Xen machine
>    (see http://syslinux.zytor.com/pxe.php ).
> 
> 2) Download http://www.cl.cam.ac.uk/~tjd21/tmp/mboot.c32 and put it in your
>    tftpboot directory.
> 
> 3) Copy xen, xenlinux and initrd into your tftpboot directory.
> 
> 4) Edit the appropriate pxelinux.cfg file to contain a line invoking
>    mboot.c32, and then the xen and module command lines, separated by
>    '---'. For example, this one works for me:
> 
>    DEFAULT mboot.c32 xen-2.0.5.gz dom0_mem=258048 --- vmlinuz-2.6.10-xen0 ro 
> console=tty root=/dev/hda --- initrd-2.6.10-xen0
> 
> 3) Let me know if it works!  A simple yes/no would be great; details of
>    what hardware you're using and symptoms if it fails would be even
>    better.
> 
> At some point in the next while I'll be submitting this code to the main
> SYSLINUX tree, with proper documentation and such-like bells and
> whistles.  In the meantime, feedback would be much appreciated.
> 
> Cheers,
> 
> Tim.
> 
> --
> Tim Deegan                           (My opinions, not the University's)
> Systems Research Group
> University of Cambridge Computer Laboratory
> 
> _______________________________________________
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>

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