No uefi install in VM

[Ron Georgia <netverbs%gmail.com@localhost>]

This feels like this question has been asked before, but I could not 
find what I was looking for in the mailing list archives.

I installed NetBSD 9.0_RC1 as a guest on VirtualBox 5.2.34 r133883 with 
GhostBSD as a host. I enabled EFI and booted from the iso image. I did 
follow the "instructions" on creating a gpt partition for efi; however, 
when I exit to the menu and point the install target to dk1 (labeled 
NetBSD) it just returns me to the menu.

I was able to install with mbr and legacy "bios."

If I install allowing the gpt option to create the EFI boot it fails to 
boot with:

mem[0x0 ... <snip because I don't know how to copy the boot screen from 
vbox> 0x11ffffffff]

>> NetBSD/x86 EFI Boot (x64), Revision 1.1...

>> Memory: 640/3684184 k

Press return to boot now, any other key for boot menu

booting Name: netbsd - starting in 0 seconds.

open netbsd: No such file or directory

...

> ls

The ls command is not currently supported for dosfs

>

If I boot from the iso image again and exit to the prompt I see this:

# gpt show wd0

start size index contents

0 1 PMBR

1 1 Pri GPT header

2 32 Unused

64 262144 1 GPT part - Windows basic data

...

# dkctl wd0 listwedges

dk0: some-dashed-number, 262144 blocks at 64, type: ntfs

dk1: some-dashed-number, blah, type: ffs

dk2: some-dashed-number, blah, type: swap

I am sure I am doing something wrong or am not understanding something 
correctly. Perhaps a friendly pointer, or a link to help me on my way?

--
90% of my problems are due to ignorance, the other 10% is because I just don't know any better.