[syslinux] core_udp_sendto: no mapping

[Joakim Tjernlund]

On Mon, 2017-11-27 at 15:05 +0100, Joakim Tjernlund 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
> > 
> > 
> > OUI 54-E1-AD
> > 
> > lspci -s 0:1f.6 -v
> > 00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (4)
> > I219-V (rev 21)
> >         Subsystem: Lenovo Ethernet Connection (4) I219-V
> >         Flags: bus master, fast devsel, latency 0, IRQ 125
> >         Memory at dc200000 (32-bit, non-prefetchable) [size=128K]
> >         Capabilities: [c8] Power Management version 3
> >         Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
> >         Capabilities: [e0] PCI Advanced Features
> >         Kernel driver in use: e1000e
> >         Kernel modules: e1000e
> > 
> > This might be the only wired NIC but there's possibly multiple device
> > handles to it and possibly a device handle to the wrong NIC
> > (wireless).
> 
> True, I got a wireless chip:
> Network controller: Intel Corporation Wireless 8265 / 8275 (rev 78)
> 
> > 
> > In your EFI shell (hopefully you have such an option):
> 
> I only have BIOS access on this laptop and no UEFI or some such, I am attempting
> to install the initial UEFI boot on the laptop.
> 
> Did try to disable all Wireless options in BIOS and tested again but
> got the same error.

I should mention that the tftp server and the laptop are on different networks,
maybe it an routing issue ? I only see MyIp printed on the screen, no gateway IP


> 
>  Jocke
> > 
> > version > fs0:\efi-ver.txt
> > dh -p Net > fs0:\efi-dh-net.txt
> > 
> > Feel free to run it without the redirect (">") to see the results
> > yourself.  The redirects would help if you can access the files so you
> > don't need to manually transcribe the output.
> > 
> > Here's some other UEFI Shell commands that may be of use:
> > 
> > guid > fs0:\efi-guid.txt
> >   or     alias > fs0:\efi-alias.txt
> > dh > fs0:\efi-dh.txt
> > 
> > 
> > --
> > -Gene