[ipxe-devel] UEFI not working - "snp->undi.receive() 8000h:9h" flood

Michael Brown mcb30 at ipxe.org
Tue Nov 10 12:34:14 UTC 2015

On 09/11/15 07:55, Tore Anderson wrote:
>> On 06/11/15 12:22, Tore Anderson wrote:
>>> I'm trying to get UEFI netboot working in an IPv6-only network
>>> environment. The system appears to download and start iPXE just fine,
>>> but what happens afterwards is that the message "snp->undi.receive()
>>> 8000h:9h" message just keeps looping on the screen. This goes on for a
>>> while, until the system reboots automatically.
>> That message is coming from your system's SnpDxe driver, not from iPXE.
> I see. Thanks. I'll see if there is possible to upgrade the laptop's
> firmware. It might very well be buggy.

You could also experiment with loading ipxe.efi from a USB key, rather 
than by chainloading over the network.  This would allow you to then try 
things such as using the UEFI shell commands to unload the SnpDxe driver 
before starting up iPXE.


More information about the ipxe-devel mailing list