本人现需要修改树莓派的开机启动画面为自己定义的图片。
硬件平台:树莓派3b+
系统版本：2019-09-26-raspbian-buster-full
参考：https://shumeipai.nxez.com/2018/12/16/customize-the-boot-startup-screen-of-the-raspberry-pi.html?variant=zh-cn

修改了/boot目录下的config.txt文件以及cmdline.txt 文件的内容。
添加文件/etc/init.d/asplashscreen
执行：sudo insserv /etc/init.d/asplashscreen
出现如下错误：
pi@raspberrypi:~ $ sudo insserv /etc/init.d/asplashscreen
insserv: FATAL: service mountkernfs has to exists for service udev
insserv: FATAL: service urandom has to exists for service networking
insserv: FATAL: service mountdevsubfs has to exists for service hwclock
insserv: FATAL: service udev is missed in the runlevels 2 3 4 5 to use service raspi-config
insserv: exiting now!

reboot后，开机界面没有改变，仍然有彩色图片和树莓派的log图片以及打印信息。和之前没有修改的现象一样

还请大神指点指点。