Comment 28 for bug 1437353

I'm seeing this with a HP NC523SFP 10G NIC and MASS 2.4.0~beta2 on Ubuntu 18.04. If I UEFI boot from the NIC, it eventually brings up a grub shell. Taking a packet capture confirmed the same ARM storm behaviour when attempting to boot - thousands of packets from the server that is being commissioned requesting the MAC of the MAAS server. Running net_bootp from the grub prompt results in the "error: couldn't send network packet." error, and running net_nslookup for a domain results in an endless ARP storm!

Unfortunately, the last firmware release for this NIC was a few years ago and i'm already running the latest version. Reading the comments here, it sounds like my only hope is a fix within grub2 - however that should already be live. The version of grub booted is grub2 2.02~beta2-36ubuntu3.18, which according to the comments here should fix it.

I've also tried using the 2.02-2ubuntu8 version of bootx64.efi, by grabbing it from http://archive.ubuntu.com/ubuntu/dists/bionic/main/uefi/grub2-amd64/2.02-2ubuntu8/grubnetx64.efi.signed and replacing /var/lib/maas/boot-resources/current/bootloader/uefi/amd64/grubx64.efi but with the same result.