Linux Full-Disk Encryption

[Shutset]

I am using Linux Mint on a dual-boot system with Windows.

While installing Mint that way, I wasn't able to encrypt it - the option was blocked out if I'm installing it together with another OS.

 

So I've been looking into ways to fully encrypt my Linux OS post-install but so far, all the solutions I've found involve creating a

brand new partition to encrypt which you then mount to access.

 

I'm looking to encrypt the actual Linux installation the same way you'd encrypt a Windows partition with software like Veracrypt.

Help, anyone?

 

Thanks.

Edited August 18, 2018 by Shutset
I realised I wasn't wording my question correctly.

[Sauron]

Veracrypt is available for Linux too, or are you saying THAT has the option greyed out?