I second slicktux's suggestion: look into OPAL, it's much more easier to setup and use compared to LUKS. The best part is, the encryption is transparent to the OS, so you could multi-boot between multiple OSes and not worry about encryption or compatibility with partitioning tools etc.
Your drive does need to support OPAL though, check out sedcli for managing SEDs.
Your drive does need to support OPAL though, check out sedcli for managing SEDs.