How to test G/FBSD 10.0-BETA1

mkdir -p /etc/portage/profile /etc/portage/package.unmask
cd /tmp
wget -O 483156.bashrc "https://bugs.gentoo.org/attachment.cgi?id=357514"
cat 483156.bashrc >> /etc/portage/bashrc
wget -O gentoo-bsd.tbz2 "http://git.overlays.gentoo.org/gitweb/?p=proj/gentoo-bsd.git;a=snapshot;h=HEAD;sf=tbz2"
tar xjpf gentoo-bsd.tbz2
mv gentoo-bsd-HEAD* /usr/local/gentoo-bsd
bash /usr/local/gentoo-bsd/scripts/extract-9.0.sh 10.0_beta1
mv freebsd-*bz2 /usr/portage/distfiles
cd /usr/local/gentoo-bsd/sys-freebsd
for p in *
do
echo "=sys-freebsd/${p}-10.0*" >> /etc/portage/package.unmask/10.0
cd ${p}
mv ${p}-10.9999_p256420.ebuild ${p}-10.0_beta1.ebuild
ebuild ${p}-10.0_beta1.ebuild digest
cd ..
done
echo "-*sys-freebsd/freebsd-contrib" >> /etc/portage/profile/packages
echo "PORTDIR_OVERLAY=\"${PORTDIR_OVERLAY} /usr/local/gentoo-bsd\"" >> /etc/portage/make.conf

emerge -a freebsd-mk-defs freebsd-sources
shutdown -r now (Please run be sure. Should continue on 10.0 kernel.)

emerge -C dev-libs/libexecinfo dev-libs/libelf dev-libs/libiconv
USE=build emerge --nodeps freebsd-lib
emerge -auN boot0 freebsd-bin freebsd-lib freebsd-libexec freebsd-pam-modules freebsd-sbin freebsd-share freebsd-ubin freebsd-usbin