cdist/hacking/v3-busybox/create_initramfs.sh

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#!/bin/sh
set -ex
initramfs_dir=$(mktemp -d /tmp/cdist-preos.XXXXXXX)
# initramfs_dir=$1
for dir in bin sbin etc proc sys newroot usr/bin usr/sbin; do
mkdir -p ${initramfs_dir}/$dir
done
touch ${initramfs_dir}/etc/mdev.conf
cp init "${initramfs_dir}/init"
cp $(which busybox) "${initramfs_dir}/bin"
for link in sh mount; do
ln -fs busybox "${initramfs_dir}/bin/$link"
done
cd "${initramfs_dir}"
find . | cpio -H newc -o | gzip
rm -rf "${initramfs_dir}"
exit 0
# TODO:
# - Kernel modules
# - ssh
# - various mkfs
# - libs