Hi 2503029332@qq.com
... Running Linux Kernel 4.19.86-sunxi64. ...
Where did that come from? I don't think it's one of our kernels, is it?
It looks like you mixed a kernel from somewhere else with our initrd.
Do I need to modify the lib in picore?
You need to recompile /sbin/udevadm for your hardware.
And /sbin/udevd, and possibly other programs contained in the initrd that haven't tried to execute yet.
It's also likely you'll these have issues with extensions. Also, kernel modules won't match the kernel.