$ sudo apt install scons g++-riscv64-linux-gnu binutils-riscv64-linux-gnu
$ git clone https://github.com/OSCPU/rt-thread.git
$ cd rt-thread/bsp/qemu-riscv-virt64
$ scons
$ ./qemu-nographic.sh
$ sudo apt install scons g++-riscv64-linux-gnu binutils-riscv64-linux-gnu
$ git clone https://github.com/OSCPU/rt-thread.git
$ cd rt-thread/bsp/qemu-riscv-virt64
$ scons
$ ./qemu-nographic.sh