Building Yocto Rootfs时
cd $ROOTFS_TOP rm -rf a10 && mkdir a10 && cd a10
git clone -b gatesgarth git://git.yoctoproject.org/poky.git
git clone -b master git://git.yoctoproject.org/meta-intel-fpga.git
source poky/oe-init-build-env ./build
echo 'MACHINE = "arria10"' >> conf/local.conf
echo 'BBLAYERS += " ${TOPDIR}/../meta-intel-fpga "' >> conf/bblayers.conf