Im new to (command line) linux, and as a learning exercise i decided to turn my old PC i had lying arround into a linux server running Ubuntu 20.04 LTS. However, while i was configuring it, i like a complete dummy chose to encrypt entire hard drive.
That is not a good thing for me, since i want my "server" to automatically start some thing i have on it if it for some reason reboots without me having to do anything about it. So naturally, first thing i tried was seeing if there was a way to remove the encryption on my disk, but that requires a copying all my data to another hard drive, wich i dont have.
Then i saw on a VERY OLD answer to a question here that it might be possible to have your password stored in plain text on a non encrypted part of the disk, and have it be automatically inputed for you, but with no mention of how.
Sooo how would i go about doing that? (Btw i understand that it renders the encryption useless, but i dont really care, its not needed for my purposes). Also please explain what everything does on your answer if possible, the whole point of this was to learn anyways