* 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 overhead.)
