Root on ZFS & GPT and boot to ufs partition

Mon Jan 23 15:11:06 UTC 2012

System install for manual http://wiki.freebsd.org/RootOnZFS/GPTZFSBoot
only + freebsd-ufs (ada0p2)
> uname -a
FreeBSD beastie.mydomain.local 10.0-CURRENT FreeBSD 10.0-CURRENT #0
r229812: Mon Jan  9 19:08:10 MSK 2012
andrey at beastie.mydomain.local:/usr/obj/usr/src/sys/W_BOOK  amd64
> gpart show
=>       34  625142381  ada0  GPT  (298G)
         34        128     1  freebsd-boot  (64k)
        162   26621952     2  freebsd-ufs  (12G)
   26622114    8388608     3  freebsd-swap  (4.0G)
   35010722  590131693     4  freebsd-zfs  (281G)
boot code MBR (pmbr) and gptzfsboot loader

In the old loader was F1,F2,F3.... new no :(

Is there a way to boot system freebsd-ufs (ada0p2)