openbsd 5.7 beta - not booting completely in bhyve

[Rich Dunkle]

I am using FreeBSD 11 CURRENT r278872.
I have an OpenBSD 5.7 beta image that was running on VirtualBox.
I converted the vdi image using qemu-img.

When I boot the OpenBSD with Bhyve I notice that the boot drive is
not recognized the same as in VirtualBox.
VirtualBox -  wd0a
Bhyve  - sd0a

I have to manually enter sda0 during the boot process.
The OpenBSD slices are recognized and booting continues.
I see:   
starting local daemons: cron.
Then the date. 
At that point OpenBSD appears hung.