How to install LSPosed to rootfs directly?

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Hello, I am trying to install LSPosed to TwoYi.

I can patch the rootfs now and I wrote a script to copy files into rootfs.

I copied a lot of files to the rootfs but it does not works.

rootfs:
data  lsp.prop  riru  riru.prop  rom.ini  system

rootfs/data:
adb

rootfs/data/adb:
lspd

rootfs/data/adb/lspd:
manager.apk

rootfs/riru:
lib  lib64

rootfs/riru/lib:
liblspd.so  libriru_lspd.so

rootfs/riru/lib64:
liblspd.so  libriru_lspd.so

rootfs/system:
framework  lib  lib64

rootfs/system/framework:
lspd.dex  lspd.dex.sha256

rootfs/system/lib:
libdaemon.so         liblspd.so.sha256     libriru_lspd.so           libriruloader.so
libdaemon.so.sha256  libriru.so            libriruhide.so            libriruloader.so.sha256sum
liblspd.so           libriru.so.sha256sum  libriruhide.so.sha256sum

rootfs/system/lib64:
libdaemon.so         liblspd.so.sha256     libriru_lspd.so           libriruloader.so
libdaemon.so.sha256  libriru.so            libriruhide.so            libriruloader.so.sha256sum
liblspd.so           libriru.so.sha256sum  libriruhide.so.sha256sum

Build script is here.

I want to know why is LSPosed not working with Riru(the LSPosed manager displays Uninstalled).

Thanks.