You can try this guide: http://kaivanov.blogspot.com/2015/03/block-device-encryption-with-cryptsetup.html
On Wed, Apr 15, 2015 at 4:53 AM, Stephen R Guglielmo <srguglie...@gmail.com> wrote: > Hi list, > > I have a USB external HDD that I would like to encrypt with a > passphrase. After looking into filesystems, I decided to go with Ext4. > What's the recommended way of encrypting a drive? Do I partition it > first, then encrypt that partition? > > Internet searches lead me to LUKS & cryptsetup. However, the blog and > forum posts I've read are a bit old. I'm running Jessie. > > Thank you! >