Florian Weimer wrote:
* Michael Ströder:
> Florian Weimer wrote:
>> * Onno van der Straaten:
>>> Ubuntu server upgrade from 12.04 to 14.04 LTS will purge the OpenLDAP
>>> directory data.
>> Is there an Ubuntu bug for this behavior? It's a bit odd.
> One should generally be careful with system upgrades.
> AFAIK on-disk-format might change because of Berkeley-DB version upgrade.
Unless OpenLDAP uses the HASH database type, it's sufficient to
checkpoint the Berkeley DB environment (and perhaps some other
undocumented magic) *before* updating OpenLDAP. The on-disk format of
B-Tree-type databases is quite stable.
(Automated dump and reload might not work for large databases during
automated package upgrades because of the time and disk space
The original poster did a significant distribution upgrade and not just a
While there might be distributions which have some sort of upgrade magic I
strongly recommend that everybody should follow the standard slapcat/slapadd
procedure when doing significant upgrade. And of course do a backup right
before upgrade after turning down writing to the directory. Everything else I
would not trust enough for a serious deployment.