On Sun, Dec 21, 2014 at 01:21:21PM +0100, Onno van der Straaten wrote:
Because this is so unexpected and it impacts OpenLDAP installations, I though I share this information here.
Ubuntu server upgrade from 12.04 to 14.04 LTS will purge the OpenLDAP directory data.
That would be a severe bug in the Ubuntu package. If you can reproduce this (for example, by restoring a backup and repeating the upgrade), please file a Launchpad bug ('ubuntu-bug slapd'), and we can discuss it there, since Ubuntu packaging bugs are off-topic for this list.