[syslinux] core_udp_sendto: no mapping

Joakim Tjernlund
Wed, 13 Dec 2017 19:11:52 -0000

On Wed, 2017-12-13 at 17:15 +0000, Ady Ady via Syslinux
wrote:
> CAUTION: This email originated from outside of the organization. Do not
click links or open attachments unless you recognize the sender and know the
content is safe.
>
>
> >
> > efistub.jpg:
> >
> > > > Start PXE over IPv4.
> >
> >   Station IP address is 192.168.201.185
> >
> >   Server IP address is 10.210.32.100
> >   NBP filename is pxelinux.0
> >   NBP filesize is 6644000 Bytes
> >  Downloading NBP file...
> >
> >   Succeed to download NBP file.
> >
> >  Downloading NBP file...
> >
> >   Succeed to download NBP file.
> >
>
>
> I will not pretend that I understand all these technical details, but I
> do know one thing: pxelinux.0 is not for UEFI (unless in CSM mode).
>
> So, here's a (somewhat rhetorical) question: why are
"efistub" and
> "pxelinux.0" together in this conversation?

This is because on that network I do not control DHCP servers(Windows) and I
cannot
change the file name etc.
So for test I replace pxelinux.0 with syslinux.efi and also put a copy of
ldlinux.e64
there.

Some good news, on another network we have linux dhcp servers under control so
there
we could change the filename to efi/syslinux.efi and lo and behold, now it
works!

I figured EFI would not know the difference of these two methods ?
Note, only tested on this new server. I will test my laptop tmw.

 Jocke