I was installing Ubuntu 10.10 using 10.10 Alternate CD. I chose 'Guided - use entire disk setup encrypted LVM'. After Specifying the passphrase for to encrypt the full disk, the installer ask me whether I want to encrypt my home folder.
This is great ! But it got me thinking: I always thought the home folder encryption is a subset of the full disk encryption ? so why does the installer ask me to encrypt the home folder after I chose full disk encryption ?