Finally I sat down and went through the documents that describe how to upgrade from 5 to 6. I only have an handful users. I also have the posix/samba zimlets in use.
I followed the following documents:
- Optimizing 5.0 to 6.0 LDAP upgrade
- Managing Customized BDB configurations
- Installing custom ldap schema 6.0
While none of the ldap start command did work, in the end the upgrade completed successfully.
Failed to start slapd. Attempting debug start to determine error.
While those documents explain it all, it wasn't a step by step guide.
It took me about 1hour and a half and it worked first time!
Thanks to Zimbra for such a great product.