Try Boost with Designed and Tested Module

As the official website mentions that, it often requires manually loading the module and service for testing.
It is often using insmod to load modules and services.
So, in this way, is it possible to load those modules during boost time??
I have researched a lot of literature that nothing special says it is impossible, so let me try it first.

At first, make sure the grub version. It is better to have Grub 1.99 for Debian.
I tried:
grub rescue>set root=(hd0,5)
grub rescue>set prefix=(hd0,5)/grub
grub rescue>insmod /grub/normal.mod
grub rescue>insmod  ./ecryptfs.ko
grub rescue>normal
Then after  restarting,
  sudo update-grub

    sudo grub-install /dev/sda

Then I found that there is error that shows: unmounted sda: ecryptfs 1.