FROM fedora:latest
ENV KERNEL_VERSION=5.10.3

RUN dnf install -y \
  bc \
  bison \
  clang \
  cpio \
  curl \
  diffutils \
  elfutils-libelf-devel \
  findutils \
  flex \
  hostname \
  make \
  ncurses-devel \
  patch \
  xz

RUN mkdir -p /build/ramfs
RUN curl https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-${KERNEL_VERSION}.tar.xz | tar xJC /build
RUN mv /build/linux* /build/kernel
COPY buildramfs.sh /build/ramfs/buildramfs.sh
COPY lam.config /build/kernel/.config