pmaports/main/postmarketos-installkernel/installkernel-pmos

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#!/bin/sh
# This script was originally taken from
# https://gitlab.alpinelinux.org/alpine/aports/-/blob/master/main/installkernel/installkernel
# and modified to suit the postmarketOS requirements for installing kernel binary:
# We don't support flavors - kernel is always installed as "vmlinuz"
set -e
if [ $# -eq 3 ] || [ $# -eq 4 ]; then
kernelversion="$1"
bootimage="$2"
mapfile="$3"
destdir="${4:-/boot}"
else
echo "Usage: installkernel <version> <image> <System.map> <directory>"
exit 1
fi
mapdir=$(dirname "$mapfile")
config="$mapdir"/.config
# backup previous files as ".old"
for i in vmlinuz System.map config; do
if [ -e "$destdir"/$i ]; then
cp "$destdir"/$i "$destdir"/$i.old
fi
done
echo "Installing kernel ${kernelversion} files to ${destdir}"
cp "$bootimage" "$destdir"/vmlinuz
cp "$mapfile" "$destdir"/System.map
cp "$config" "$destdir"/config
exit 0