When I was installing my OS, I didn't encrypt. Is there a way to encrypt it now without formatting and without losing any data?
I read a few guides how to encrypt and every one says that I need to backup all my data because I will lose it.
Is there a way to encrypt it all now without losing data?
Way to encrypt disk without formatting it
disk-encryptionencryptionluks
Best Answer
From the LUKS faq https://gitlab.com/cryptsetup/cryptsetup/wikis/FrequentlyAskedQuestions#2-setup
However you may want to look into https://johndoe31415.github.io/luksipc/usage.html#plain-to-luks-conversion "Plain to LUKS conversion" which could satisfy your requirement. Disclaimer : I've never tried this, I don't know if it works, and the project doesn't appear to have been updated since 2015.