Sollte auch gehen.
Quasi wie der verbose boot
forums.freebsd.org
Quasi wie der verbose boot

Solved - Boot hangs on cherrytrail uefi system (installer + preinstalled stick), no dmesg written
Edit: Solved, I had to disable the uarts in /boot/device.hints After disabling ACPI and APIC via /boot/loader.conf.local I saw the entropy harvester tried to harvest nonexistent uarts... :) In /boot/device.hints I had to replace the UART hints there with "disabled" settings...