diff --git a/tools/boot/install-boot.sh b/tools/boot/install-boot.sh
index d2b3eacfa48f..e5201e050b28 100755
--- a/tools/boot/install-boot.sh
+++ b/tools/boot/install-boot.sh
@@ -1,133 +1,146 @@
 #!/bin/sh
 
 # $FreeBSD$
 
 #
 # Installs/updates the necessary boot blocks for the desired boot environment
 #
 # Lightly tested.. Intended to be installed, but until it matures, it will just
 # be a boot tool for regression testing.
 
 # insert code here to guess what you have -- yikes!
 
 die() {
     echo $*
     exit 1
 }
 
 doit() {
     echo $*
     eval $*
 }
 
 find-part() {
     dev=$1
     part=$2
 
     gpart show $dev | tail +2 | awk '$4 == "'$part'" { print $3; }'
 }
 
 boot_nogeli_gpt_zfs_legacy() {
     dev=$1
     dst=$2
 
     idx=$(find-part $dev "freebsd-boot")
     if [ -z "$idx" ] ; then
 	die "No freebsd-boot partition found"
     fi
     doit gpart bootcode -b ${gpt0} -p ${gptzfs2} -i $idx $dev
     exit 0
 }
 
 boot_nogeli_gpt_ufs_legacy() {
     dev=$1
     dst=$2
 
     idx=$(find-part $dev "freebsd-boot")
     if [ -z "$idx" ] ; then
 	die "No freebsd-boot partition found"
     fi
     doit gpart bootcode -b ${gpt0} -p ${gpt2} -i $idx $dev
     exit 0
 }
 
 boot_nogeli_mbr_zfs_legacy() {
     dev=$1
     dst=$2
 
     # search to find the BSD slice
     s=$(findpart $dev "freebsd-zfs")
     if [ -z "$s" ] ; then
 	die "No freebsd-zfs slice found"
     fi
     # search to find the freebsd-zfs partition within the slice
     # Or just assume it is 'a' because it has to be since it fails otherwise
     dd if=${dst}/boot/zfsboot of=/tmp/zfsboot1 count=1
     doit gpart bootcode -b /tmp/zfsboo1 ${dev}s${s}	# Put boot1 into the start of part
     sysctl kern.geom.debugflags=0x10		# Put boot2 into ZFS boot slot
     doit dd if=${dst}/boot/zfsboot of=/dev/${dev}s${s} iseek=1 seek=1024
     sysctl kern.geom.debugflags=0x0
 
     exit 0
 }
 
 boot_nogeli_mbr_ufs_legacy() {
     dev=$1
     dst=$2
 
     doit gpart bootcode -b ${mbr0} ${dev}
     s=$(findpart $dev "freebsd-ufs")
     if [ -z "$s" ] ; then
-	die "No freebsd-zfs slice found"
+	die "No freebsd-ufs slice found"
     fi
     doit gpart bootcode -p ${mbr2} ${dev}s${s}
     exit 0
 }
 
+boot_nogeli_vtoc8_ufs_ofw() {
+    dev=$1
+    dst=$2
+
+    # For non-native builds, ensure that geom_part(4) supports VTOC8.
+    kldload geom_part_vtoc8.ko
+    doit gpart bootcode -p ${vtoc8} ${dev}
+    exit 0
+}
+
 DESTDIR=/
 
 # Note: we really don't support geli boot in this script yet.
 geli=nogeli
 
 while getopts "b:d:f:g:o:s:" opt; do
     case "$opt" in
 	b)
 	    bios=${OPTARG}
 	    ;;
 	d)
 	    DESTDIR=${OPTARG}
 	    ;;
 	f)
 	    fs=${OPTARG}
 	    ;;
 	g)
 	    case ${OPTARG} in
 		[Yy][Ee][Ss]|geli) geli=geli ;;
 		*) geli=nogeli ;;
 	    esac
 	    ;;
 	o)
 	    opts=${OPTARG}
 	    ;;
 	s)
 	    scheme=${OPTARG}
 	    ;;
     esac
 done
 
 shift $((OPTIND-1))
 dev=$1
 
 # For gpt, we need to install pmbr as the primary boot loader
 # it knows about 
 gpt0=${DESTDIR}/boot/pmbr
 gpt2=${DESTDIR}/boot/gptboot
 gptzfs2=${DESTDIR}/boot/gptzfsboot
 
 # For MBR, we have lots of choices, but select boot0
 mbr0=${DESTDIR}/boot/boot0
 mbr2=${DESTDIR}/boot/boot
 
+# VTOC8
+vtoc8=${DESTDIR}/boot/boot1
+
 # sanity check here
 
 eval boot_${geli}_${scheme}_${fs}_${bios} $dev $DESTDIR $opts || echo "Unsupported boot env: ${geli}-${scheme}-${fs}-${bios}"
diff --git a/tools/boot/rootgen.sh b/tools/boot/rootgen.sh
index b0b4571a76b9..98e726f6a370 100755
--- a/tools/boot/rootgen.sh
+++ b/tools/boot/rootgen.sh
@@ -1,413 +1,440 @@
 #!/bin/sh
 
 # $FreeBSD$
 
 #
 # Builds all the bat-shit crazy combinations we support booting from,
 # at least for amd64. It assume you have a ~sane kernel in /boot/kernel
 # and copies that into the ~150MB root images we create (we create the du
 # size of the kernel + 20MB
 #
 # Sad panda sez: this runs as root, but could be userland if someone
 # creates userland geli and zfs tools.
 #
 # This assumes an external prograam install-boot.sh which will install
 # the appropriate boot files in the appropriate locations.
 #
 # These images assume ada0 will be the root image. We should likely
 # use labels, but we don't.
 #
 # ASsumes you've already rebuilt... maybe bad? Also maybe bad: the env
 # vars should likely be conditionally set to allow better automation.
 #
 
 cpsys() {
     src=$1
     dst=$2
 
     # Copy kernel + boot loader
     (cd $src ; tar cf - .) | (cd $dst; tar xf -)
 }
 
 mk_nogeli_gpt_ufs_legacy() {
     src=$1
     img=$2
 
     cat > ${src}/etc/fstab <<EOF
 /dev/ada0p2	/		ufs	rw	1	1
 EOF
     makefs -t ffs -B little -s 200m ${img}.p2 ${src}
     mkimg -s gpt -b ${src}/boot/pmbr \
 	  -p freebsd-boot:=${src}/boot/gptboot \
 	  -p freebsd-ufs:=${img}.p2 -o ${img}
     rm -f ${src}/etc/fstab
 }
 
 mk_nogeli_gpt_ufs_uefi() {
     src=$1
     img=$2
 
     cat > ${src}/etc/fstab <<EOF
 /dev/ada0p2	/		ufs	rw	1	1
 EOF
 # XXX need to make msdos part for this to work XXXX
     cp ${src}/boot/boot.efifat ${img}.p1
     makefs -t ffs -B little -s 200m ${img}.p2 ${src}
     mkimg -s gpt -b ${src}/boot/pmbr \
 	  -p efi:=${img}.p1 \
 	  -p freebsd-ufs:=${img}.p2 -o ${img}
     rm -f ${src}/etc/fstab
 }
 
 mk_nogeli_gpt_ufs_both() {
     src=$1
     img=$2
 
     cat > ${src}/etc/fstab <<EOF
 /dev/ada0p3	/		ufs	rw	1	1
 EOF
     # XXX need to make msdos part for this to work XXXX
     cp ${src}/boot/boot.efifat ${img}.p1
     makefs -t ffs -B little -s 200m ${img}.p3 ${src}
     # p1 is boot for uefi, p2 is boot for gpt, p3 is /
     mkimg -b ${src}/boot/pmbr -s gpt \
 	  -p efi:=${src}/boot/boot1.efifat \
 	  -p freebsd-boot:=${src}/boot/gptboot \
 	  -p freebsd-ufs:=${img}.p3 \
 	  -o ${img}
     rm -f ${src}/etc/fstab
 }
 
 mk_nogeli_gpt_zfs_legacy() {
     src=$1
     img=$2
     mntpt=$3
     geli=$4
     scheme=$5
     fs=$6
     bios=$7
     pool=nogeli-gpt-zfs-legacy
 
     dd if=/dev/zero of=${img} count=1 seek=$((200 * 1024 * 1024 / 512))
     md=$(mdconfig -f ${img})
     gpart create -s gpt ${md}
     gpart add -t freebsd-boot -s 400k -a 4k	${md}	# <= ~540k
     gpart add -t freebsd-zfs -l root $md
     # install-boot will make this bootable
     zpool create -O mountpoint=none -R ${mntpt} ${pool} ${md}p2
     zpool set bootfs=${pool} ${pool}
     zfs create -o mountpoint=/ ${pool}/ROOT
     # NB: The online guides go nuts customizing /var and other mountpoints here, no need
     cpsys ${src} ${mntpt}
     df
     # need to make a couple of tweaks
     cat > ${mntpt}/boot/loader.conf <<EOF
 zfs_load=YES
 opensolaris_load=YES
 EOF
     cp /boot/kernel/zfs.ko ${mntpt}/boot/kernel/zfs.ko
     cp /boot/kernel/opensolaris.ko ${mntpt}/boot/kernel/opensolaris.ko
     ls -las ${mntpt}/boot
     # end tweaks
     zfs umount -f ${pool}/ROOT
     zfs set mountpoint=none ${pool}/ROOT
     zpool set bootfs=${pool}/ROOT ${pool}
     zpool set autoexpand=on ${pool}
     zpool export ${pool}
     ${SRCTOP}/tools/boot/install-boot.sh -g ${geli} -s ${scheme} -f ${fs} -b ${bios} -d ${src} ${md}
     mdconfig -d -u ${md}
 }
 
 mk_nogeli_gpt_zfs_uefi() {
 }
 
 mk_nogeli_gpt_zfs_both() {
 }
 
 mk_nogeli_mbr_ufs_legacy() {
     src=$1
     img=$2
 
     cat > ${src}/etc/fstab <<EOF
 /dev/ada0s1a	/		ufs	rw	1	1
 EOF
     makefs -t ffs -B little -s 200m ${img}.s1a ${src}
     mkimg -s bsd -b ${src}/boot/boot -p freebsd-ufs:=${img}.s1a -o ${img}.s1
     mkimg -a 1 ${bootmbr} -s mbr -b ${src}/boot/boot0sio -p freebsd:=${img}.s1 -o ${img}
     rm -f ${src}/etc/fstab
 }
 
 mk_nogeli_mbr_ufs_uefi() {
 }
 
 mk_nogeli_mbr_ufs_both() {
 }
 
 mk_nogeli_mbr_zfs_legacy() {
 }
 
 mk_nogeli_mbr_zfs_uefi() {
 }
 
 mk_nogeli_mbr_zfs_both() {
 }
 
 mk_geli_gpt_ufs_legacy() {
 }
 
 mk_geli_gpt_ufs_uefi() {
 }
 
 mk_geli_gpt_ufs_both() {
 }
 
 mk_geli_gpt_zfs_legacy() {
 }
 
 mk_geli_gpt_zfs_uefi() {
 }
 
 mk_geli_gpt_zfs_both() {
 }
 
 mk_geli_mbr_ufs_legacy() {
 }
 
 mk_geli_mbr_ufs_uefi() {
 }
 
 mk_geli_mbr_ufs_both() {
 }
 
 mk_geli_mbr_zfs_legacy() {
 }
 
 mk_geli_mbr_zfs_uefi() {
 }
 
 mk_geli_mbr_zfs_both() {
 }
 
 # iso
 # pxeldr
 # u-boot
 # powerpc
 
+mk_sparc64_nogeli_vtoc8_ufs_ofw() {
+    src=$1
+    img=$2
+    mntpt=$3
+    geli=$4
+    scheme=$5
+    fs=$6
+    bios=$7
+
+    cat > ${src}/etc/fstab <<EOF
+/dev/ada0a	/		ufs	rw	1	1
+EOF
+    makefs -t ffs -B big -s 200m ${img} ${src}
+    md=$(mdconfig -f ${img})
+    # For non-native builds, ensure that geom_part(4) supports VTOC8.
+    kldload geom_part_vtoc8.ko
+    gpart create -s VTOC8 ${md}
+    gpart add -t freebsd-ufs ${md}
+    ${SRCTOP}/tools/boot/install-boot.sh -g ${geli} -s ${scheme} -f ${fs} -b ${bios} -d ${src} ${md}
+    mdconfig -d -u ${md}
+    rm -f ${src}/etc/fstab
+}
+
 qser="-serial telnet::4444,server -nographic"
 
 # https://wiki.freebsd.org/QemuRecipes
 # aarch64
 qemu_aarch64_uefi()
 {
     img=$1
     sh=$2
 
     echo "qemu-system-aarch64 -m 4096M -cpu cortex-a57 -M virt  \
         -bios QEMU_EFI.fd ${qser} \
         -drive if=none,file=${img},id=hd0 \
         -device virtio-blk-device,drive=hd0" > $sh
 # https://wiki.freebsd.org/arm64/QEMU also has
 #       -device virtio-net-device,netdev=net0
 #       -netdev user,id=net0
 }
 
 # Amd64 qemu
 qemu_amd64_legacy()
 {
     img=$1
     sh=$2
 
     echo "qemu-system-x86_64 --drive file=${img},format=raw ${qser}" > $sh
 }
 
 qemu_amd64_uefi()
 {
     img=$1
     sh=$2
 
     echo "qemu-system-x86_64 -bios ~/bios/OVMF-X64.fd --drive file=${img},format=raw ${qser}" > $sh
 }
 
 qemu_amd64_both()
 {
     img=$1
     sh=$2
 
     echo "qemu-system-x86_64 --drive file=${img},format=raw ${qser}" > $sh
     echo "qemu-system-x86_64 -bios ~/bios/OVMF-X64.fd --drive file=${img},format=raw ${qser}" > $sh
 }
 
 # arm
 # nothing listed?
 
 # i386
 qemu_i386_legacy()
 {
     img=$1
     sh=$2
 
     echo "qemu-system-i386 --drive file=${img},format=raw ${qser}" > $sh
 }
 
 # Not yet supported
 qemu_i386_uefi()
 {
     img=$1
     sh=$2
 
     echo "qemu-system-i386 -bios ~/bios/OVMF-X32.fd --drive file=${img},format=raw ${qser}" > $sh
 }
 
 # Needs UEFI to be supported
 qemu_i386_both()
 {
     img=$1
     sh=$2
 
     echo "qemu-system-i386 --drive file=${img},format=raw ${qser}" > $sh
     echo "qemu-system-i386 -bios ~/bios/OVMF-X32.fd --drive file=${img},format=raw ${qser}" > $sh
 }
 
 # mips
 # qemu-system-mips -kernel /path/to/rootfs/boot/kernel/kernel -nographic -hda /path/to/disk.img -m 2048
 
 # Powerpc -- doesn't work but maybe it would enough for testing -- needs details
 # powerpc64
 # qemu-system-ppc64 -drive file=/path/to/disk.img,format=raw
 
 # sparc64
-# 10.3 works, 12-current (which one?) hangs
 # qemu-system-sparc64 -drive file=/path/to/disk.img,format=raw
 
-
 # Misc variables
 SRCTOP=$(make -v SRCTOP)
 cd ${SRCTOP}/stand
 OBJDIR=$(make -v .OBJDIR)
 IMGDIR=${OBJDIR}/boot-images
 mkdir -p ${IMGDIR}
 MNTPT=$(mktemp -d /tmp/stand-test.XXXXXX)
 
 # Setup the installed tree...
 DESTDIR=${OBJDIR}/boot-tree
 rm -rf ${DESTDIR}
 mkdir -p ${DESTDIR}/boot/defaults
 mkdir -p ${DESTDIR}/boot/kernel
+# XXX boot1 exists only on sparc64
+cp /boot/boot1 ${DESTDIR}/boot
+cp /boot/loader ${DESTDIR}/boot
 cp /boot/kernel/kernel ${DESTDIR}/boot/kernel
 echo -h -D -S115200 > ${DESTDIR}/boot.config
 # XXX
 cp /boot/device.hints ${DESTDIR}/boot/device.hints
 # Assume we're already built
 make install DESTDIR=${DESTDIR} MK_MAN=no MK_INSTALL_AS_USER=yes
 # Copy init, /bin/sh, minimal libraries and testing /etc/rc
 mkdir -p ${DESTDIR}/sbin ${DESTDIR}/bin \
       ${DESTDIR}/lib ${DESTDIR}/libexec \
       ${DESTDIR}/etc ${DESTDIR}/dev
 for f in /sbin/halt /sbin/init /bin/sh $(ldd /bin/sh | awk 'NF == 4 { print $3; }') /libexec/ld-elf.so.1; do
     cp $f ${DESTDIR}/$f
 done
 cat > ${DESTDIR}/etc/rc <<EOF
 #!/bin/sh
 
 echo "RC COMMAND RUNNING -- SUCCESS!!!!!"
 halt -p
 EOF
 
 # OK. Let the games begin
 
 for arch in amd64; do
     for geli in nogeli geli; do
 	for scheme in gpt mbr; do
 	    for fs in ufs zfs; do
 		for bios in legacy uefi both; do
 		    # Create sparse file and mount newly created filesystem(s) on it
 		    img=${IMGDIR}/${arch}-${geli}-${scheme}-${fs}-${bios}.img
 		    sh=${IMGDIR}/${arch}-${geli}-${scheme}-${fs}-${bios}.sh
 		    echo "vvvvvvvvvvvvvvvvvvvvvv   Creating $img  vvvvvvvvvvvvvvvvvvvvvvv"
 		    rm -f ${img}*
 		    eval mk_${geli}_${scheme}_${fs}_${bios} ${DESTDIR} ${img} ${MNTPT} ${geli} ${scheme} ${fs} ${bios}
 		    eval qemu_${arch}_${bios} ${img} ${sh}
 		    [ -n "${SUDO_USER}" ] && chown ${SUDO_USER} ${img}*
 		    echo "^^^^^^^^^^^^^^^^^^^^^^   Creating $img  ^^^^^^^^^^^^^^^^^^^^^^^"
 		done
 	    done
 	done
     done
 done
 
 rmdir ${MNTPT}
 
 exit 0
 
 # Notes for the future
 
 for arch in i386; do
     for geli in nogeli geli; do
 	for scheme in gpt mbr; do
 	    for fs in ufs zfs; do
 		for bios in legacy; do
 		    # Create sparse file and mount newly created filesystem(s) on it
 		    img=${IMGDIR}/${arch}-${geli}-${scheme}-${fs}-${bios}.img
 		    sh=${IMGDIR}/${arch}-${geli}-${scheme}-${fs}-${bios}.sh
 		    echo "vvvvvvvvvvvvvvvvvvvvvv   Creating $img  vvvvvvvvvvvvvvvvvvvvvvv"
 		    rm -f ${img}*
 		    eval mk_${geli}_${scheme}_${fs}_${bios} ${DESTDIR} ${img} ${MNTPT} ${geli} ${scheme} ${fs} ${bios}
 		    eval qemu_${arch}_${bios} ${img} ${sh}
 		    [ -n "${SUDO_USER}" ] && chown ${SUDO_USER} ${img}*
 		    echo "^^^^^^^^^^^^^^^^^^^^^^   Creating $img  ^^^^^^^^^^^^^^^^^^^^^^^"
 		done
 	    done
 	done
     done
 done
 
 for arch in arm aarch64; do
     for scheme in gpt mbr; do
 	fs=ufs
 	for bios in uboot efi; do
 	    # Create sparse file and mount newly created filesystem(s) on it
 	    img=${IMGDIR}/${arch}-${geli}-${scheme}-${fs}-${bios}.img
 	    sh=${IMGDIR}/${arch}-${geli}-${scheme}-${fs}-${bios}.sh
 	    echo "vvvvvvvvvvvvvvvvvvvvvv   Creating $img  vvvvvvvvvvvvvvvvvvvvvvv"
 	    rm -f ${img}*
 	    eval mk_${geli}_${scheme}_${fs}_${bios} ${DESTDIR} ${img} ${MNTPT} ${geli} ${scheme} ${fs} ${bios}
 	    eval qemu_${arch}_${bios} ${img} ${sh}
 	    [ -n "${SUDO_USER}" ] && chown ${SUDO_USER} ${img}*
 	    echo "^^^^^^^^^^^^^^^^^^^^^^   Creating $img  ^^^^^^^^^^^^^^^^^^^^^^^"
 	done
     done
 done
 
 for arch in powerpc powerpc64; do
     for scheme in ppc-wtf; do
 	fs=ufs
 	for bios in ofw uboot chrp; do
 	    # Create sparse file and mount newly created filesystem(s) on it
 	    img=${IMGDIR}/${arch}-${geli}-${scheme}-${fs}-${bios}.img
 	    sh=${IMGDIR}/${arch}-${geli}-${scheme}-${fs}-${bios}.sh
 	    echo "vvvvvvvvvvvvvvvvvvvvvv   Creating $img  vvvvvvvvvvvvvvvvvvvvvvv"
 	    rm -f ${img}*
 	    eval mk_${geli}_${scheme}_${fs}_${bios} ${DESTDIR} ${img} ${MNTPT} ${geli} ${scheme} ${fs} ${bios}
 	    eval qemu_${arch}_${bios} ${img} ${sh}
 	    [ -n "${SUDO_USER}" ] && chown ${SUDO_USER} ${img}*
 	    echo "^^^^^^^^^^^^^^^^^^^^^^   Creating $img  ^^^^^^^^^^^^^^^^^^^^^^^"
 	done
     done
 done
 
 for arch in sparc64; do
-    for scheme in sun; do
-	fs=ufs
-	for bios in ofw; do
-	    # Create sparse file and mount newly created filesystem(s) on it
-	    img=${IMGDIR}/${arch}-${geli}-${scheme}-${fs}-${bios}.img
-	    sh=${IMGDIR}/${arch}-${geli}-${scheme}-${fs}-${bios}.sh
-	    echo "vvvvvvvvvvvvvvvvvvvvvv   Creating $img  vvvvvvvvvvvvvvvvvvvvvvv"
-	    rm -f ${img}*
-	    eval mk_${geli}_${scheme}_${fs}_${bios} ${DESTDIR} ${img} ${MNTPT} ${geli} ${scheme} ${fs} ${bios}
-	    eval qemu_${arch}_${bios} ${img} ${sh}
-	    [ -n "${SUDO_USER}" ] && chown ${SUDO_USER} ${img}*
-	    echo "^^^^^^^^^^^^^^^^^^^^^^   Creating $img  ^^^^^^^^^^^^^^^^^^^^^^^"
+    for geli in nogeli; do
+	for scheme in vtoc8; do
+	    for fs in ufs; do
+		for bios in ofw; do
+		    # Create sparse file and mount newly created filesystem(s) on it
+		    img=${IMGDIR}/${arch}-${geli}-${scheme}-${fs}-${bios}.img
+		    sh=${IMGDIR}/${arch}-${geli}-${scheme}-${fs}-${bios}.sh
+		    echo "vvvvvvvvvvvvvvvvvvvvvv   Creating $img  vvvvvvvvvvvvvvvvvvvvvvv"
+		    rm -f ${img}*
+		    eval mk_${arch}_${geli}_${scheme}_${fs}_${bios} ${DESTDIR} ${img} ${MNTPT} ${geli} ${scheme} ${fs} ${bios}
+		    eval qemu_${arch}_${bios} ${img} ${sh}
+		    [ -n "${SUDO_USER}" ] && chown ${SUDO_USER} ${img}*
+		    echo "^^^^^^^^^^^^^^^^^^^^^^   Creating $img  ^^^^^^^^^^^^^^^^^^^^^^^"
+		done
+	    done
 	done
     done
 done