create directories required by busybox

Signed-off-by: Nico Schottelius <nico@wurzel.schottelius.org>

hacking/v3-busybox/create_initramfs.sh

@@ -0,0 +1,30 @@
+#!/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
+
+exit 0
+
+# TODO:
+# - Kernel modules
+# - ssh
+# - various mkfs
+# - libs
+