Exact same issue as before. It is unable to start LDAP on your server:
Starting LDAP on zcs-xx6.COMPANY.ch...Error: Unable to start ldap, exiting.
Resetting ldap_url on zcs-xx6.COMPANY.ch...done
Tue May 14 11:57:56 2013 failed.
thus the ldap_url gets reset, and then later generates the other error you see.
I do see one other troubling bit in your zmsetup.log:
** Importing CA /opt/zimbra/ssl/zimbra/ca/ca.pem into CACERTS...done.
** Copying CA to /opt/zimbra/conf/ca...done.
unable to load certificate
139783842195112:error:0906D06C:PEM routines:PEM_read_bio:no start lineem_lib.c:696:Expecting: TRUSTED CERTIFICATE
The slapd server of course requires valid certs be installed as well.
Unfortunately, there is no other output in zmsetup.log that gives finer detail into why it is failing to start LDAP initially. I can say that all my servers run ubuntu10, and I have installed 6.0.15 numerous times in master/replica configurations, without issue. So there is something specific to your environment/setup that is causing the failure. Without further detail into why it is failing to start, I can't give any additional guidance. You could modify zmsetup.pl of course to allow further detail as to why ldap is failing to start to be logged.
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