Hello, dohniks,
First of all thank you for all help you have given me so far on porting halium to Le Max2.
I did just what you said, and here you have the results:
Images mounted on laptop:
https://paste.ubuntu.com/p/HZNMnF3BXq/
From twrp BEFORE booting once:
https://paste.ubuntu.com/p/XzfP99XqHW/
BUT....
My friends, I do not know what happened, but I tried to login in ssh and guess what?! it worked! If you ask me if I did anything different from other times I am totally sure I did not. I don't really know why this worked this time. The only information I can give you about this is the following:
When I failed to login ssh I was first running Linux Mint 18 and after Ubuntu 16.04. (Linux mint 18 is based on Ubuntu 16.04 {coincidence?})
My phone was running Lineage 15.1 official (android 8.1) before I format my partitions.
Now WHEN IT WORKED, I was running a stock-based rom, upon android 6.0 and ubuntu 18.04 LTS.
Do you think any of it has relation with my fails and my recent success?