[marcmac]

Hollow - try this:

(As the zimbra user)
zmcreateca
zmcreatecert
/opt/zimbra/bin/ldap start

If ldap starts, you should be able to run the install again:
(as root)
rm -rf /opt/zimbra/openldap-data/*
/opt/zimbra/libexec/zmsetup.pl

If it doesn't start:
remove "ldaps://" from /opt/zimbra/bin/ldap
remove last 4 lines (starting with "TLS") from /opt/zimbra/openldap/etc/openldap/slapd.conf AND /opt/zimbra/conf/slapd.conf

then
(as root)
rm -rf /opt/zimbra/openldap-data/*
/opt/zimbra/libexec/zmsetup.pl