FROM ubuntu:20.04 ENV DEBIAN_FRONTEND=noninteractive RUN apt-get update \ && apt-get install -y build-essential python3 xorriso genext2fs mtools gnu-efi git automake autoconf wget libgmp-dev libmpfr-dev libmpc-dev flex bison texinfo dosfstools \ && rm -rf /var/lib/apt/lists/* /var/cache/apt/apt-file/*