install bzImage to /boot, create initramfs, create boot conf for gummiboot

installkernel

#!/bin/bash

if [ $# != 4 ]; then
    echo "usage $0 [vmlinuz name] [bzimage file name] [System.map file name] [output dir]"
    exit 1
fi

KERNEL_NAME=$1
BZIMAGE_NAME=$2
SYSTEMMAP_NAME=$3
BOOT_DIR=$4

VMLINUZ_NAME=vmlinuz-${KERNEL_NAME}
INITRAMFS_NAME=initramfs-${KERNEL_NAME}.img

cp -f ${BZIMAGE_NAME} ${BOOT_DIR}/${VMLINUZ_NAME}
cp -f ${SYSTEMMAP_NAME} ${BOOT_DIR}/System.map-${KERNEL_NAME}

mkinitcpio -k ${KERNEL_NAME} -c /etc/mkinitcpio.conf -g /boot/${INITRAMFS_NAME}

boot_conf=${BOOT_DIR}/loader/entries/${KERNEL_NAME}.conf

cat << EOD > $boot_conf
title       ${KERNEL_NAME}
linux       /${VMLINUZ_NAME}
initrd      /${INITRAMFS_NAME}
options     root=/dev/sda2 rw
EOD

echo "${boot_conf}"
cat ${boot_conf}

echo "Done."