Comment 5 for bug 653628

This is probably related to #635698 and specifically to the issue I noticed while trying to verify a fix for that issue, that several packages including keyutils and ecryptfs-utils were set so autoremove tries to remove them when it should not do so.

Workaround for now is likely to be to log in as a user who does not use an encrypted home directory but is in the admin group, do

  sudo apt-get install ecryptfs-utils

and then reboot.

The real fix is (I suspect) to cause something (lxde? maybe?) to depend on ecryptfs-utils.