Azure Gen2 OPNsense VM Kernel Boot Stuck

[paulvylie]

Hi,
I'm trying to deploy OPNsense appliance by creating gen2 VM on Hyper-V and then uploading vhd into Azure.
Created gen2 Azure VM uses custom storage account for boot diagnostics and serial console.

There is a problem with boot, it freezes after bootloader. (works fine with gen1 VM)
Sometimes it can boot after series of Reset-VM/NMI from serial console, works in 5-10% of cases.

There is something related to serial console output in FreeBSD and Azure COM emulator at the early boot time.
The issue is discussed in detail in the thread below.
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=264267
Is there any way that can be edited and fixed in OPNsense?