bootstrap-initrd

make-initrd.sh (705B)

#!/bin/sh
# bootstrap-initrd: Linux initrd to bootstrap from a small binary seed
# SPDX-FileCopyrightText: 2017 Haelwenn (lanodan) Monnier <contact+utils@hacktivis.me>
# SPDX-License-Identifier: MPL-2.0
WORKDIR="$(dirname "$0")"
WORKDIR="$(realpath "$WORKDIR")"
. "$WORKDIR/common.sh"
: ${ALPINE_ARCH:=x86_64}
name_base="bootstrap-initrd"
out_base="${WORKDIR}/${name_base}/${ALPINE_ARCH}"
test -z "${EXCLUDE_EXTRAS}" && out_base="${out_base}+extras"
set -ex
./make-root.sh || die "Failed: make-root"
cd "$out_base" || die "Failed: cd $out_base"
deblob -n
find . -type f -print0 | sort -z | pax -w -0 -M norm -x sv4cpio -f "${out_base}.cpio"
pigz --best -f -k "${out_base}.cpio"
cd "${WORKDIR}"