I had the same problem upgrading from 2.4.17-2.1 to 2.4.23-4. I run a Kolab (email) server on an up-to-date testing box that uses slapd. Installing the upgraded packages this morning caused the same error message reported above. I was able to manually upgrade the database using the instructions in Debian Bug # 593550. If this problem affects everyone upgrading from testing, we should probably increase the severity of the bug to RC and get it fixed before Squeeze releases.<div>
<br></div><div>Soren</div>