Script to install kernel binary to /boot

shlinstallkernel.sh

#!/bin/bash

bootdir="/boot"
installfiles=".config arch/x86/boot/bzImage"
cdpath=/usr/src/linux
grub_config=grub2-mkconfig

testfile() {
        if [ ! -r "$1" ]; then
                echo "$1" not found
                exit 1
        fi
}

if ! make kernelrelease > /dev/null; then
    echo Cannot issue make kernelrelease, attempting to cd into right dir
    cd "${cdpath}"
    if ! make kernelrelease > /dev/null; then
        echo No luck even here, exiting
        exit 1
    fi
fi
kernelversion=`make kernelrelease`
make modules_install || exit 1

echo Installing kernel version ${kernelversion} to ${bootdir}
for file in ${installfiles}; do
        testfile ${file}
done

mkdir ${bootdir}/${kernelversion}
for file in ${installfiles}; do
        if [ "${file}" = ".config" -a -r ${bootdir}/${kernelversion}/`basename "${file}"` ]; then
                diff -u ${bootdir}/${kernelversion}/`basename "${file}"` ${file} | less
        fi
        cp -iv ${file} ${bootdir}/${kernelversion}/`basename "${file}"`
done

echo
echo "Done. Run \`${grub_config} -o ${bootdir}/grub2/grub.cfg\`? (y/N)"
read answer
if [ "X${answer}" = "Xy" -o "X${answer}" = "XY" ]; then
        ${grub_config} -o ${bootdir}/grub2/grub.cfg
else
        echo "Not running grub-mkconfig. Bye."
fi