echo"BuildArch can be: arm(default), armel, arm64, x86"
echo"CodeName - optional, Code name for Linux, can be: xenial(default), zesty, bionic, alpine, alpine3.13 or alpine3.14. If BuildArch is armel, LinuxCodeName is jessie(default) or tizen."
echo" for FreeBSD can be: freebsd12, freebsd13"
echo" for illumos can be: illumos."
echo"lldbx.y - optional, LLDB version, can be: lldb3.9(default), lldb4.0, lldb5.0, lldb6.0 no-lldb. Ignored for alpine and FreeBSD"
echo"llvmx[.y] - optional, LLVM version for LLVM related packages."
echo"--skipunmount - optional, will skip the unmount of rootfs folder."
echo"--use-mirror - optional, use mirror URL to fetch resources, when available."