[syslinux] tftp with pxelinux.0 from syslinux 4.10-pre17

[Christian Hesse]

Gene Cumm <gene.cumm at gmail.com> on Sat, 31 Dec 2011 13:55:00 -0500:
> On Sat, Dec 31, 2011 at 12:19, Christian Hesse <list at eworm.de> wrote:
> > Gene Cumm <gene.cumm at gmail.com> on Sat, 31 Dec 2011 11:30:33 -0500:
> >> On Dec 31, 2011 10:46 AM, "Christian Hesse" <list at eworm.de> wrote:
> 
> >> > Ok, an even more simple configuration:
> >> > * notebook serving network boot on tap device "tap0"
> >> > * Virtualbox virtual machine with one "Bridged Adapter" to tap0
> >> > * virtual machine configured to boot from network
> >> >
> >> > And here is the log:
> >> > http://www.eworm.de/tmp/tcpdump-syslinux-lwip.log
> 
> > But it results in the same situation. /pxelinux.cfg/<uid> is not found,
> > the server returns a 404 to the client. The client then again hangs
> > with /pxelinux.cfg/<mac>.
> >
> > http://www.eworm.de/tmp/tcpdump-syslinux-lwip-http.log
> 
> Nothing new in these two PCAP captures.  It seems to stop all traffic
> after the TFTP file not found and the HTTP file not found (which does
> appear to have a TCP keep-alive then FIN to close the stream).  I
> assume these ran at least a few seconds after the last packet.  In the
> TFTP capture, I was seeing Notebook A do an ARP request on the PXE
> client with no response but didn't see that in the HTTP capture.

I killed tcpdump too early for the http capture...

> > Let me know what to do and I will test it.
> 
> Thanks in advance.  I'll probably send a binary and/or diff.

I got it booting with a little workaround. My httpd config file has these
lines now:

RewriteEngine On
RewriteRule /pxelinux.cfg/.* /pxelinux.cfg/default

This forces the webserver to deliver the default config on first request.
After that pxelinux loads vesamenu.c32 (and kernel and initrd when selecting)
without problems.
-- 
Schoene Gruesse
Chris