iPXE on DELL 7010 in UEFI mode

[SebastianRoth]

Hello iPXE community,

over the last weeks I've tried to get a DELL OptiPlex 7010 (Intel 82579LM NIC / PCI-ID 8086:1502) to PXE boot iPXE in UEFI mode. Helping a friend with this so I don't have a machine here to test myself. But we went through several cycles with different debugging options. This is confirmed by another friend on a 7010 as well.

'DEBUG=device,pci,snp,snponly,snpnet,netdevice'

Code:

iPXE initialising devices...Adding 3c509 root bus
Adding EFI root bus
MII PciRoot(0x0)/Pci(0x19,0x0)/MAC(90b11c9bc14f,0x0) is an MII device
MII PciRoot(0x0)/Pci(0x19,0x0)/MAC(90b11c9bc14f,0x0) is an MII device
SNP PciRoot(0x0)/Pci(0x19,0x0)/MAC(90b11c9bc14f,0x0)/IPv4(0.0.0.0) is an SNP device
SNP PciRoot(0x0)/Pci(0x19,0x0)/MAC(90b11c9bc14f,0x0)/IPv4(0.0.0.0) is an SNP device
NETDEV net0 registered (phys SNP-0xd07eb518 hwaddr 90:b1:1c:9b:c1:4f)
NETDEV net0 could not add SNP device: Error 0x7f45e082 (http://ipxe.org/7f45e082)
SNP PciRoot(0x0)/Pci(0x19,0x0)/MAC(90b11c9bc14f,0x0)/IPv6(0000:0000...) is an SNP device
SNP PciRoot(0x0)/Pci(0x19,0x0)/MAC(90b11c9bc14f,0x0)/IPv6(0000:0000...) is an SNP device
NETDEV rejecting duplicate (phys SNP-0xd07e9d98) of net0 (phys SNP-0xd07eb518)
...

Those 'rejecting duplicate' messages keep repeating for a while. The first phys address is changing every time.

As the error code was pointing me to efi_utils we also tried 'DEBUG=efi_utils' and ended up with this:

Code:

iPXE initialising devices...EFIDEV UNKNOWN(0xd07e9d98) cannot open device path: Error 0x7f45e082 (http://ipxe.org/err/7f45e082)
EFIDEV UNKNOWN(0xd07e9d98) is not a PCI device: Error 0x7f45e082 (http://ipxe.org/err/7f45e082)
EFIDEV UNKNOWN(0xd07e9d98) could not get underlying device information
EFIDEV PciRoot(0x0)/Pci(0x19,0x0)/MAC(90b11c9bc14f,0x0)/IPv4(0.0.0.0)/MAC(90b11c9bc14f,0x1) could not add child PciRoot(0x0)/Pci(0x19,0x0)/MAC(90b11c9bc14f,0x0)/...
EFIDEV UNKNOWN(0xd07e8d18) cannot open device path: Error 0x7f45e082 (http://ipxe.org/err/7f45e082)
EFIDEV UNKNOWN(0xd07e8d18) is not a PCI device: Error 0x7f45e082 (http://ipxe.org/err/7f45e082)
EFIDEV UNKNOWN(0xd07e8d18) could not get underlying device information
...

Again those messages keep repeating for some time with different addresses.

Any hint on what to try next are highly appreciated! Thanks a lot in advance.