Boot from raidframe on gpt?

[John Klos <john%ziaspace.com@localhost>]

I have:

gpt show wd1
       start        size  index  contents
           0           1         PMBR
           1           1         Pri GPT header
           2          32         Pri GPT table
          34         990
        1024  7746927616      1  GPT part - NetBSD RAIDFrame component
  7746928640    67107840      2  GPT part - NetBSD swap
  7814036480         655
  7814037135          32         Sec GPT table
  7814037167           1         Sec GPT header

gpt show raid1
       start        size  index  contents
           0           1         PMBR
           1           1         Pri GPT header
           2          32         Pri GPT table
          34  7746927420      1  GPT part - NetBSD FFSv1/FFSv2
  7746927454           1
  7746927455          32         Sec GPT table
  7746927487           1         Sec GPT header

dkctl wd1 listwedges
/dev/rwd1d: 2 wedges:
dk0: mirror0, 7746927616 blocks at 1024, type: raidframe
dk1: bsdswap, 67107840 blocks at 7746928640, type: swap

dkctl raid1 listwedges
/dev/rraid1d: 1 wedge:
dk2: bsdroot, 7746927420 blocks at 34, type: ffs

installboot over wd1 screws up the GPT partition, installboot over dk0 
does nothing, and installboot over raid1 does nothing.

gpt biosboot -i 1 wd1
and
gpt biosboot -i 1 raid1

gave me a NetBSD boot prompt, but the bootloader couldn't find the 
filesystem for /boot (which is there).

Is it still not possible to boot from raidframe on GPT?

https://mail-index.netbsd.org/current-users/2013/09/28/msg023352.html

Thanks,
John