I have recently upgraded my main home system from Mandrake Linux 10.1 Official to Mandriva Linux 2006.0 (Official). There have been some issues with this and the first that I have solved is as follows:
I used the drakloop facility in the older version to create an encrypted partition in my home directory. Whenever I logged onto the system using KDM, I was prompted for my passphrase in order to allow the partition to be mounted. However, after I upgraded the system, there was no attempt to mount the partition whenever I logged in.
I can’t remember how I discovered how to create the file system in the first place, but some looking around with Google showed up that the utility drakloop as provided by the distro was what I used. I now have a vague memory of seeing a menu item or a button and thinking “That would be nice…”