Script to create CPIO

mk_mdadm_init.sh

#!/bin/bash

CWD="$(pwd)"
ROOT="${CWD}/initramfs"
if [ -d "${ROOT}" ]
then
    echo "Directory exist: ${ROOT}"
    read -p "Remove ${ROOT}? [Y/N] N: " answer
    if [ "${answer}" == "Y" ]
    then
        sudo rm -rf "${ROOT}"
    else
        echo "Not removing ${ROOT} ... "
    fi
fi

mkdir -p "${ROOT}/etc"

CONF="${ROOT}/etc/mdadm.conf"
echo "DEVICE partitions" >> "${CONF}"
sudo mdadm --detail --scan /dev/md127 | tee -a "${CONF}" 1>/dev/null

sudo chown -R root.root "${ROOT}"

CPIO="${CWD}/freestanding-clr-mdadm.cpio"
cd "${ROOT}"
echo "Creating ${CPIO} ..."
find . -print0 | cpio -o --null --format=newc > "${CPIO}"  2>/dev/null
echo "Compressing ${CPIO} ..."
gzip -9 -f "${CPIO}" 1>/dev/null