run_hook ()
{
    msg -n ":: Creating shutdown ramfs..."

    for _dir in bin lib sbin usr/bin usr/lib usr/sbin; do
        mkdir -p /run/initramfs/${_dir}
    done
    cp /bin/busybox /run/initramfs/bin/
    cp /lib/ld-* /run/initramfs/lib/
    cp /lib/lib* /run/initramfs/lib/
    cp /usr/lib/lib* /run/initramfs/usr/lib/
    cp /sbin/dmsetup /run/initramfs/sbin/
    cp /sbin/losetup /run/initramfs/sbin/
    if [[ -x /bin/nbd-client ]]; then
        cp /bin/nbd-client /run/initramfs/bin/
    fi

    chroot /run/initramfs /bin/busybox --install
    cp /shutdown /run/initramfs/

    msg "done."
}