Doing LUKS full disk encryption on exisiting system

Good day,

I’d recommend trying VeraCrypt for this. A guide on full disk encryption using it may be found here: https://veracrypt.codeplex.com/wikipage?title=System%20Encryption I’d recommend against using TrueCrypt, as there are numerous unpatched bugs in it, see: So about Truecrypt. It's now unsafe

Have a nice day,

Ego