The default state of this server is that FreeBSD hangs when booting off UEFI
and the COM ports are enabled. That seems to be because console includes or
adds "efi" by default. Under every circumstance I've tested, when console
contains "efi", the server hangs at the same point shown in the first
I have a Quanta D52B-1U server. When I boot it via legacy BIOS, there is no
issue. When I boot with UEFI and COM ports & console redirection disabled,
there is no issue. However, when boot UEFI and enable the COM ports and/or
console redirection, the server hangs at boot time right here:
Versio