Preseed single encrypted partition (without LVM)

[ML mail <mlnospam@yahoo.com>]

Hello,

Anyone knows the correct preseed and debconf commands/HD recipe in order to encrypt a single partition with partman-crypto for an automated install? I do not want to use LVM and I could not find any single documentation mentioning how to do that whith wheezy.

Basically my HD partitioning would be /boot (unencrypted) and / (encrypted with dm-crypt). Sounds easy but I can't get to preseed that simple config, only with LVM crap and I really do not want LVM.

Cheers!