[syslinux] core_udp_sendto: no mapping

[Joakim Tjernlund]

On Tue, 2017-11-28 at 12:25 +0100, Julien Viard de Galbert wrote:
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Hello,

Le 28 nov. 2017 à 00:39, Joakim Tjernlund via Syslinux <syslinux at zytor.com<mailto:syslinux at zytor.com>> a écrit :

On Mon, 2017-11-27 at 18:18 -0500, Gene Cumm wrote:

On Mon, Nov 27, 2017 at 6:07 PM, Joakim Tjernlund
<Joakim.Tjernlund at infinera.com<mailto:Joakim.Tjernlund at infinera.com>> wrote:
On Mon, 2017-11-27 at 18:03 -0500, Gene Cumm wrote:
On Mon, Nov 27, 2017 at 2:14 PM, Gene Cumm <gene.cumm at gmail.com<mailto:gene.cumm at gmail.com>> wrote:
On Mon, Nov 27, 2017 at 12:07 PM, Joakim Tjernlund
<Joakim.Tjernlund at infinera.com<mailto:Joakim.Tjernlund at infinera.com>> wrote:
On Mon, 2017-11-27 at 08:42 -0500, Gene Cumm wrote:
Bringing the discussion to the list.

You stated you see the following on your Lenovo ThinkPad T470s with
UEFI firmware N1WET41W (1.20 date: 10/17/2017):


 core_udp_sendto: stalling on configure with no mapping



Which version of syslinux are you using ?
This might not be your problem as it doesn’t seams to start the TFTP transfer but I send a few patches that were accepted in syslinux git repo to better handle the EFI PXE case.

I am using top of git + gnu-efi 3.0.6 (https://github.com/joakim-tjernlund/syslinux/commits/master)
But I have tried older versions too. Seems my Lenovo EFI is too "modern" for syslinux
but I think Gene has an idea how to solve it.

Jocke