Build a basic Linux kernel and ramdisk that can start in QEMU.

docker/Dockerfile.kernel

@@ -0,0 +1,24 @@
+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