FS#3746 - x86_64 EFI image fails to boot when USB device is plugged

[openwrt-bot]

txcanyon:

Snapshot OR 21.02.0-rc1-x86_64 will not boot EFI

System: AsRock J5005-ITX (EFI only boot), 4GB ram, Intel Dual 1000PT server adapter

Steps used to typically install snapshot:

Boot SystemRescueCD to prompt
issue dd if=openwrt-xxx of=/dev/sda
partitions are copied over, reboot
Error on Snapshot: "error: disk 'hd0,gpt1' not found

on RC1 file copies over as above but it does not boot in any fashion just returns to the bios screen.

It's been a long time since I tested the EFI snapshots, but at one point they worked fine. Given that the EFI support was added to master, I decided to wait on 2021.02 for full implementation.

The original pull on github was #1968, but it has since been closed, and I saw there was some work on the EFI stack for dual booting. That image may in fact boot on a non-EFI system, but I do not have any way to test.

At this point I would say both snapshot and RC1 are broken for x86_64 EFI systems.